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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> |
f453ba04 | 42 | |
8bd441b2 | 43 | #include "drm_crtc_internal.h" |
67d0ec4e | 44 | #include "drm_internal.h" |
8bd441b2 | 45 | |
9a6f5130 CW |
46 | static struct drm_framebuffer * |
47 | internal_framebuffer_create(struct drm_device *dev, | |
1eb83451 | 48 | const struct drm_mode_fb_cmd2 *r, |
9a6f5130 | 49 | struct drm_file *file_priv); |
c394c2b0 | 50 | |
f453ba04 DA |
51 | /* Avoid boilerplate. I'm tired of typing. */ |
52 | #define DRM_ENUM_NAME_FN(fnname, list) \ | |
d20d3174 | 53 | const char *fnname(int val) \ |
f453ba04 DA |
54 | { \ |
55 | int i; \ | |
56 | for (i = 0; i < ARRAY_SIZE(list); i++) { \ | |
57 | if (list[i].type == val) \ | |
58 | return list[i].name; \ | |
59 | } \ | |
60 | return "(unknown)"; \ | |
61 | } | |
62 | ||
63 | /* | |
64 | * Global properties | |
65 | */ | |
4dfd909f TR |
66 | static const struct drm_prop_enum_list drm_dpms_enum_list[] = { |
67 | { DRM_MODE_DPMS_ON, "On" }, | |
f453ba04 DA |
68 | { DRM_MODE_DPMS_STANDBY, "Standby" }, |
69 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, | |
70 | { DRM_MODE_DPMS_OFF, "Off" } | |
71 | }; | |
72 | ||
73 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) | |
74 | ||
4dfd909f | 75 | static const struct drm_prop_enum_list drm_plane_type_enum_list[] = { |
9922ab5a RC |
76 | { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, |
77 | { DRM_PLANE_TYPE_PRIMARY, "Primary" }, | |
78 | { DRM_PLANE_TYPE_CURSOR, "Cursor" }, | |
79 | }; | |
80 | ||
f453ba04 DA |
81 | /* |
82 | * Optional properties | |
83 | */ | |
4dfd909f | 84 | static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = { |
53bd8389 JB |
85 | { DRM_MODE_SCALE_NONE, "None" }, |
86 | { DRM_MODE_SCALE_FULLSCREEN, "Full" }, | |
87 | { DRM_MODE_SCALE_CENTER, "Center" }, | |
88 | { DRM_MODE_SCALE_ASPECT, "Full aspect" }, | |
f453ba04 DA |
89 | }; |
90 | ||
ff587e45 VK |
91 | static const struct drm_prop_enum_list drm_aspect_ratio_enum_list[] = { |
92 | { DRM_MODE_PICTURE_ASPECT_NONE, "Automatic" }, | |
93 | { DRM_MODE_PICTURE_ASPECT_4_3, "4:3" }, | |
94 | { DRM_MODE_PICTURE_ASPECT_16_9, "16:9" }, | |
95 | }; | |
96 | ||
f453ba04 DA |
97 | /* |
98 | * Non-global properties, but "required" for certain connectors. | |
99 | */ | |
4dfd909f | 100 | static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = { |
f453ba04 DA |
101 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
102 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
103 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
104 | }; | |
105 | ||
106 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) | |
107 | ||
4dfd909f | 108 | static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = { |
f453ba04 DA |
109 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
110 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
111 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
112 | }; | |
113 | ||
114 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, | |
115 | drm_dvi_i_subconnector_enum_list) | |
116 | ||
4dfd909f | 117 | static const struct drm_prop_enum_list drm_tv_select_enum_list[] = { |
f453ba04 DA |
118 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
119 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
120 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
121 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 122 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
123 | }; |
124 | ||
125 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) | |
126 | ||
4dfd909f | 127 | static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = { |
f453ba04 DA |
128 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
129 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
130 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
131 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 132 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
133 | }; |
134 | ||
135 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, | |
136 | drm_tv_subconnector_enum_list) | |
137 | ||
d20d3174 | 138 | static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = { |
884840aa JB |
139 | { DRM_MODE_DIRTY_OFF, "Off" }, |
140 | { DRM_MODE_DIRTY_ON, "On" }, | |
141 | { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, | |
142 | }; | |
143 | ||
f453ba04 DA |
144 | struct drm_conn_prop_enum_list { |
145 | int type; | |
d20d3174 | 146 | const char *name; |
b21e3afe | 147 | struct ida ida; |
f453ba04 DA |
148 | }; |
149 | ||
150 | /* | |
151 | * Connector and encoder types. | |
152 | */ | |
4dfd909f TR |
153 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = { |
154 | { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, | |
b21e3afe IM |
155 | { DRM_MODE_CONNECTOR_VGA, "VGA" }, |
156 | { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, | |
157 | { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, | |
158 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, | |
159 | { DRM_MODE_CONNECTOR_Composite, "Composite" }, | |
160 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, | |
161 | { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, | |
162 | { DRM_MODE_CONNECTOR_Component, "Component" }, | |
163 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, | |
164 | { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, | |
165 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, | |
166 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, | |
167 | { DRM_MODE_CONNECTOR_TV, "TV" }, | |
168 | { DRM_MODE_CONNECTOR_eDP, "eDP" }, | |
169 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, | |
b8923273 | 170 | { DRM_MODE_CONNECTOR_DSI, "DSI" }, |
0b27c02a | 171 | { DRM_MODE_CONNECTOR_DPI, "DPI" }, |
f453ba04 DA |
172 | }; |
173 | ||
4dfd909f TR |
174 | static const struct drm_prop_enum_list drm_encoder_enum_list[] = { |
175 | { DRM_MODE_ENCODER_NONE, "None" }, | |
f453ba04 DA |
176 | { DRM_MODE_ENCODER_DAC, "DAC" }, |
177 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, | |
178 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, | |
179 | { DRM_MODE_ENCODER_TVDAC, "TV" }, | |
a7331e5c | 180 | { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, |
b8923273 | 181 | { DRM_MODE_ENCODER_DSI, "DSI" }, |
182407a6 | 182 | { DRM_MODE_ENCODER_DPMST, "DP MST" }, |
0b27c02a | 183 | { DRM_MODE_ENCODER_DPI, "DPI" }, |
f453ba04 DA |
184 | }; |
185 | ||
4dfd909f | 186 | static const struct drm_prop_enum_list drm_subpixel_enum_list[] = { |
ac1bb36c JB |
187 | { SubPixelUnknown, "Unknown" }, |
188 | { SubPixelHorizontalRGB, "Horizontal RGB" }, | |
189 | { SubPixelHorizontalBGR, "Horizontal BGR" }, | |
190 | { SubPixelVerticalRGB, "Vertical RGB" }, | |
191 | { SubPixelVerticalBGR, "Vertical BGR" }, | |
192 | { SubPixelNone, "None" }, | |
193 | }; | |
194 | ||
b21e3afe IM |
195 | void drm_connector_ida_init(void) |
196 | { | |
197 | int i; | |
198 | ||
199 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
200 | ida_init(&drm_connector_enum_list[i].ida); | |
201 | } | |
202 | ||
203 | void drm_connector_ida_destroy(void) | |
204 | { | |
205 | int i; | |
206 | ||
207 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
208 | ida_destroy(&drm_connector_enum_list[i].ida); | |
209 | } | |
210 | ||
c8e32cc1 DV |
211 | /** |
212 | * drm_get_connector_status_name - return a string for connector status | |
213 | * @status: connector status to compute name of | |
214 | * | |
215 | * In contrast to the other drm_get_*_name functions this one here returns a | |
216 | * const pointer and hence is threadsafe. | |
217 | */ | |
d20d3174 | 218 | const char *drm_get_connector_status_name(enum drm_connector_status status) |
f453ba04 DA |
219 | { |
220 | if (status == connector_status_connected) | |
221 | return "connected"; | |
222 | else if (status == connector_status_disconnected) | |
223 | return "disconnected"; | |
224 | else | |
225 | return "unknown"; | |
226 | } | |
ed7951dc | 227 | EXPORT_SYMBOL(drm_get_connector_status_name); |
f453ba04 | 228 | |
ac1bb36c JB |
229 | /** |
230 | * drm_get_subpixel_order_name - return a string for a given subpixel enum | |
231 | * @order: enum of subpixel_order | |
232 | * | |
233 | * Note you could abuse this and return something out of bounds, but that | |
234 | * would be a caller error. No unscrubbed user data should make it here. | |
235 | */ | |
236 | const char *drm_get_subpixel_order_name(enum subpixel_order order) | |
237 | { | |
238 | return drm_subpixel_enum_list[order].name; | |
239 | } | |
240 | EXPORT_SYMBOL(drm_get_subpixel_order_name); | |
241 | ||
6ba6d03e VS |
242 | static char printable_char(int c) |
243 | { | |
244 | return isascii(c) && isprint(c) ? c : '?'; | |
245 | } | |
246 | ||
c8e32cc1 DV |
247 | /** |
248 | * drm_get_format_name - return a string for drm fourcc format | |
249 | * @format: format to compute name of | |
250 | * | |
251 | * Note that the buffer used by this function is globally shared and owned by | |
252 | * the function itself. | |
253 | * | |
254 | * FIXME: This isn't really multithreading safe. | |
255 | */ | |
d20d3174 | 256 | const char *drm_get_format_name(uint32_t format) |
6ba6d03e VS |
257 | { |
258 | static char buf[32]; | |
259 | ||
260 | snprintf(buf, sizeof(buf), | |
261 | "%c%c%c%c %s-endian (0x%08x)", | |
262 | printable_char(format & 0xff), | |
263 | printable_char((format >> 8) & 0xff), | |
264 | printable_char((format >> 16) & 0xff), | |
265 | printable_char((format >> 24) & 0x7f), | |
266 | format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little", | |
267 | format); | |
268 | ||
269 | return buf; | |
270 | } | |
271 | EXPORT_SYMBOL(drm_get_format_name); | |
272 | ||
2ee39452 DA |
273 | /* |
274 | * Internal function to assign a slot in the object idr and optionally | |
275 | * register the object into the idr. | |
276 | */ | |
277 | static int drm_mode_object_get_reg(struct drm_device *dev, | |
278 | struct drm_mode_object *obj, | |
279 | uint32_t obj_type, | |
d0f37cf6 DA |
280 | bool register_obj, |
281 | void (*obj_free_cb)(struct kref *kref)) | |
2ee39452 DA |
282 | { |
283 | int ret; | |
284 | ||
285 | mutex_lock(&dev->mode_config.idr_mutex); | |
286 | ret = idr_alloc(&dev->mode_config.crtc_idr, register_obj ? obj : NULL, 1, 0, GFP_KERNEL); | |
287 | if (ret >= 0) { | |
288 | /* | |
289 | * Set up the object linking under the protection of the idr | |
290 | * lock so that other users can't see inconsistent state. | |
291 | */ | |
292 | obj->id = ret; | |
293 | obj->type = obj_type; | |
d0f37cf6 DA |
294 | if (obj_free_cb) { |
295 | obj->free_cb = obj_free_cb; | |
296 | kref_init(&obj->refcount); | |
297 | } | |
2ee39452 DA |
298 | } |
299 | mutex_unlock(&dev->mode_config.idr_mutex); | |
300 | ||
301 | return ret < 0 ? ret : 0; | |
302 | } | |
303 | ||
f453ba04 | 304 | /** |
065a50ed | 305 | * drm_mode_object_get - allocate a new modeset identifier |
f453ba04 | 306 | * @dev: DRM device |
065a50ed DV |
307 | * @obj: object pointer, used to generate unique ID |
308 | * @obj_type: object type | |
f453ba04 | 309 | * |
f453ba04 | 310 | * Create a unique identifier based on @ptr in @dev's identifier space. Used |
c8e32cc1 DV |
311 | * for tracking modes, CRTCs and connectors. Note that despite the _get postfix |
312 | * modeset identifiers are _not_ reference counted. Hence don't use this for | |
313 | * reference counted modeset objects like framebuffers. | |
f453ba04 | 314 | * |
c8e32cc1 | 315 | * Returns: |
3c67d839 | 316 | * Zero on success, error code on failure. |
f453ba04 | 317 | */ |
8bd441b2 DV |
318 | int drm_mode_object_get(struct drm_device *dev, |
319 | struct drm_mode_object *obj, uint32_t obj_type) | |
f453ba04 | 320 | { |
d0f37cf6 | 321 | return drm_mode_object_get_reg(dev, obj, obj_type, true, NULL); |
2ee39452 | 322 | } |
f453ba04 | 323 | |
2ee39452 DA |
324 | static void drm_mode_object_register(struct drm_device *dev, |
325 | struct drm_mode_object *obj) | |
326 | { | |
ad2563c2 | 327 | mutex_lock(&dev->mode_config.idr_mutex); |
2ee39452 | 328 | idr_replace(&dev->mode_config.crtc_idr, obj, obj->id); |
ad2563c2 | 329 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
330 | } |
331 | ||
332 | /** | |
7c8f6d25 | 333 | * drm_mode_object_unregister - free a modeset identifer |
f453ba04 | 334 | * @dev: DRM device |
065a50ed | 335 | * @object: object to free |
f453ba04 | 336 | * |
7c8f6d25 DA |
337 | * Free @id from @dev's unique identifier pool. |
338 | * This function can be called multiple times, and guards against | |
339 | * multiple removals. | |
340 | * These modeset identifiers are _not_ reference counted. Hence don't use this | |
c8e32cc1 | 341 | * for reference counted modeset objects like framebuffers. |
f453ba04 | 342 | */ |
7c8f6d25 | 343 | void drm_mode_object_unregister(struct drm_device *dev, |
8bd441b2 | 344 | struct drm_mode_object *object) |
f453ba04 | 345 | { |
ad2563c2 | 346 | mutex_lock(&dev->mode_config.idr_mutex); |
7c8f6d25 DA |
347 | if (object->id) { |
348 | idr_remove(&dev->mode_config.crtc_idr, object->id); | |
349 | object->id = 0; | |
350 | } | |
ad2563c2 | 351 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
352 | } |
353 | ||
98f75de4 RC |
354 | static struct drm_mode_object *_object_find(struct drm_device *dev, |
355 | uint32_t id, uint32_t type) | |
356 | { | |
357 | struct drm_mode_object *obj = NULL; | |
358 | ||
359 | mutex_lock(&dev->mode_config.idr_mutex); | |
360 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
168c02ec DV |
361 | if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type) |
362 | obj = NULL; | |
363 | if (obj && obj->id != id) | |
364 | obj = NULL; | |
72fe90b8 DA |
365 | |
366 | if (obj && obj->free_cb) { | |
367 | if (!kref_get_unless_zero(&obj->refcount)) | |
368 | obj = NULL; | |
369 | } | |
98f75de4 RC |
370 | mutex_unlock(&dev->mode_config.idr_mutex); |
371 | ||
372 | return obj; | |
373 | } | |
374 | ||
786b99ed DV |
375 | /** |
376 | * drm_mode_object_find - look up a drm object with static lifetime | |
377 | * @dev: drm device | |
378 | * @id: id of the mode object | |
379 | * @type: type of the mode object | |
380 | * | |
05981422 DV |
381 | * This function is used to look up a modeset object. It will acquire a |
382 | * reference for reference counted objects. This reference must be dropped again | |
383 | * by callind drm_mode_object_unreference(). | |
786b99ed | 384 | */ |
7a9c9060 DV |
385 | struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
386 | uint32_t id, uint32_t type) | |
f453ba04 | 387 | { |
ad2563c2 | 388 | struct drm_mode_object *obj = NULL; |
f453ba04 | 389 | |
98f75de4 | 390 | obj = _object_find(dev, id, type); |
f453ba04 DA |
391 | return obj; |
392 | } | |
393 | EXPORT_SYMBOL(drm_mode_object_find); | |
394 | ||
05981422 DV |
395 | /** |
396 | * drm_mode_object_unreference - decr the object refcnt | |
397 | * @obj: mode_object | |
398 | * | |
399 | * This functions decrements the object's refcount if it is a refcounted modeset | |
400 | * object. It is a no-op on any other object. This is used to drop references | |
401 | * acquired with drm_mode_object_reference(). | |
402 | */ | |
d0f37cf6 DA |
403 | void drm_mode_object_unreference(struct drm_mode_object *obj) |
404 | { | |
405 | if (obj->free_cb) { | |
406 | DRM_DEBUG("OBJ ID: %d (%d)\n", obj->id, atomic_read(&obj->refcount.refcount)); | |
407 | kref_put(&obj->refcount, obj->free_cb); | |
408 | } | |
409 | } | |
410 | EXPORT_SYMBOL(drm_mode_object_unreference); | |
411 | ||
412 | /** | |
05981422 | 413 | * drm_mode_object_reference - incr the object refcnt |
d0f37cf6 DA |
414 | * @obj: mode_object |
415 | * | |
05981422 DV |
416 | * This functions increments the object's refcount if it is a refcounted modeset |
417 | * object. It is a no-op on any other object. References should be dropped again | |
418 | * by calling drm_mode_object_unreference(). | |
d0f37cf6 DA |
419 | */ |
420 | void drm_mode_object_reference(struct drm_mode_object *obj) | |
421 | { | |
422 | if (obj->free_cb) { | |
423 | DRM_DEBUG("OBJ ID: %d (%d)\n", obj->id, atomic_read(&obj->refcount.refcount)); | |
424 | kref_get(&obj->refcount); | |
425 | } | |
426 | } | |
427 | EXPORT_SYMBOL(drm_mode_object_reference); | |
428 | ||
f55f1f91 DA |
429 | static void drm_framebuffer_free(struct kref *kref) |
430 | { | |
431 | struct drm_framebuffer *fb = | |
d0f37cf6 | 432 | container_of(kref, struct drm_framebuffer, base.refcount); |
f55f1f91 DA |
433 | struct drm_device *dev = fb->dev; |
434 | ||
435 | /* | |
436 | * The lookup idr holds a weak reference, which has not necessarily been | |
437 | * removed at this point. Check for that. | |
438 | */ | |
19ab3f8b | 439 | drm_mode_object_unregister(dev, &fb->base); |
f55f1f91 DA |
440 | |
441 | fb->funcs->destroy(fb); | |
442 | } | |
443 | ||
f453ba04 DA |
444 | /** |
445 | * drm_framebuffer_init - initialize a framebuffer | |
446 | * @dev: DRM device | |
065a50ed DV |
447 | * @fb: framebuffer to be initialized |
448 | * @funcs: ... with these functions | |
f453ba04 | 449 | * |
f453ba04 DA |
450 | * Allocates an ID for the framebuffer's parent mode object, sets its mode |
451 | * functions & device file and adds it to the master fd list. | |
452 | * | |
4b096ac1 DV |
453 | * IMPORTANT: |
454 | * This functions publishes the fb and makes it available for concurrent access | |
455 | * by other users. Which means by this point the fb _must_ be fully set up - | |
456 | * since all the fb attributes are invariant over its lifetime, no further | |
457 | * locking but only correct reference counting is required. | |
458 | * | |
c8e32cc1 | 459 | * Returns: |
af901ca1 | 460 | * Zero on success, error code on failure. |
f453ba04 DA |
461 | */ |
462 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, | |
463 | const struct drm_framebuffer_funcs *funcs) | |
464 | { | |
465 | int ret; | |
466 | ||
4b096ac1 DV |
467 | INIT_LIST_HEAD(&fb->filp_head); |
468 | fb->dev = dev; | |
469 | fb->funcs = funcs; | |
f7eff60e | 470 | |
d0f37cf6 | 471 | ret = drm_mode_object_get_reg(dev, &fb->base, DRM_MODE_OBJECT_FB, |
9cd47424 | 472 | false, drm_framebuffer_free); |
6bfc56aa | 473 | if (ret) |
4b096ac1 | 474 | goto out; |
f453ba04 | 475 | |
9cd47424 | 476 | mutex_lock(&dev->mode_config.fb_lock); |
f453ba04 DA |
477 | dev->mode_config.num_fb++; |
478 | list_add(&fb->head, &dev->mode_config.fb_list); | |
2ddea3fd | 479 | mutex_unlock(&dev->mode_config.fb_lock); |
f453ba04 | 480 | |
9cd47424 | 481 | drm_mode_object_register(dev, &fb->base); |
9cd47424 | 482 | out: |
3c67d839 | 483 | return ret; |
f453ba04 DA |
484 | } |
485 | EXPORT_SYMBOL(drm_framebuffer_init); | |
486 | ||
786b99ed DV |
487 | /** |
488 | * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference | |
489 | * @dev: drm device | |
490 | * @id: id of the fb object | |
491 | * | |
492 | * If successful, this grabs an additional reference to the framebuffer - | |
493 | * callers need to make sure to eventually unreference the returned framebuffer | |
c8e32cc1 | 494 | * again, using @drm_framebuffer_unreference. |
786b99ed DV |
495 | */ |
496 | struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, | |
497 | uint32_t id) | |
498 | { | |
cee26ac4 DA |
499 | struct drm_mode_object *obj; |
500 | struct drm_framebuffer *fb = NULL; | |
786b99ed | 501 | |
cee26ac4 | 502 | obj = _object_find(dev, id, DRM_MODE_OBJECT_FB); |
72fe90b8 | 503 | if (obj) |
cee26ac4 | 504 | fb = obj_to_fb(obj); |
786b99ed DV |
505 | return fb; |
506 | } | |
507 | EXPORT_SYMBOL(drm_framebuffer_lookup); | |
508 | ||
36206361 DV |
509 | /** |
510 | * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr | |
511 | * @fb: fb to unregister | |
512 | * | |
513 | * Drivers need to call this when cleaning up driver-private framebuffers, e.g. | |
514 | * those used for fbdev. Note that the caller must hold a reference of it's own, | |
515 | * i.e. the object may not be destroyed through this call (since it'll lead to a | |
516 | * locking inversion). | |
517 | */ | |
518 | void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) | |
519 | { | |
a39a357c DV |
520 | struct drm_device *dev; |
521 | ||
522 | if (!fb) | |
523 | return; | |
524 | ||
525 | dev = fb->dev; | |
2b677e8c | 526 | |
2b677e8c | 527 | /* Mark fb as reaped and drop idr ref. */ |
19ab3f8b | 528 | drm_mode_object_unregister(dev, &fb->base); |
36206361 DV |
529 | } |
530 | EXPORT_SYMBOL(drm_framebuffer_unregister_private); | |
531 | ||
f453ba04 DA |
532 | /** |
533 | * drm_framebuffer_cleanup - remove a framebuffer object | |
534 | * @fb: framebuffer to remove | |
535 | * | |
c8e32cc1 DV |
536 | * Cleanup framebuffer. This function is intended to be used from the drivers |
537 | * ->destroy callback. It can also be used to clean up driver private | |
538 | * framebuffers embedded into a larger structure. | |
36206361 DV |
539 | * |
540 | * Note that this function does not remove the fb from active usuage - if it is | |
541 | * still used anywhere, hilarity can ensue since userspace could call getfb on | |
542 | * the id and get back -EINVAL. Obviously no concern at driver unload time. | |
543 | * | |
544 | * Also, the framebuffer will not be removed from the lookup idr - for | |
545 | * user-created framebuffers this will happen in in the rmfb ioctl. For | |
546 | * driver-private objects (e.g. for fbdev) drivers need to explicitly call | |
547 | * drm_framebuffer_unregister_private. | |
f453ba04 DA |
548 | */ |
549 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) | |
f7eff60e RC |
550 | { |
551 | struct drm_device *dev = fb->dev; | |
8faf6b18 | 552 | |
4b096ac1 | 553 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e RC |
554 | list_del(&fb->head); |
555 | dev->mode_config.num_fb--; | |
4b096ac1 | 556 | mutex_unlock(&dev->mode_config.fb_lock); |
f7eff60e RC |
557 | } |
558 | EXPORT_SYMBOL(drm_framebuffer_cleanup); | |
559 | ||
560 | /** | |
561 | * drm_framebuffer_remove - remove and unreference a framebuffer object | |
562 | * @fb: framebuffer to remove | |
563 | * | |
f7eff60e | 564 | * Scans all the CRTCs and planes in @dev's mode_config. If they're |
36206361 | 565 | * using @fb, removes it, setting it to NULL. Then drops the reference to the |
b62584e3 DV |
566 | * passed-in framebuffer. Might take the modeset locks. |
567 | * | |
568 | * Note that this function optimizes the cleanup away if the caller holds the | |
569 | * last reference to the framebuffer. It is also guaranteed to not take the | |
570 | * modeset locks in this case. | |
f7eff60e RC |
571 | */ |
572 | void drm_framebuffer_remove(struct drm_framebuffer *fb) | |
f453ba04 | 573 | { |
a39a357c | 574 | struct drm_device *dev; |
f453ba04 | 575 | struct drm_crtc *crtc; |
8cf5c917 | 576 | struct drm_plane *plane; |
5ef5f72f DA |
577 | struct drm_mode_set set; |
578 | int ret; | |
f453ba04 | 579 | |
a39a357c DV |
580 | if (!fb) |
581 | return; | |
582 | ||
583 | dev = fb->dev; | |
584 | ||
4b096ac1 | 585 | WARN_ON(!list_empty(&fb->filp_head)); |
8faf6b18 | 586 | |
b62584e3 DV |
587 | /* |
588 | * drm ABI mandates that we remove any deleted framebuffers from active | |
589 | * useage. But since most sane clients only remove framebuffers they no | |
590 | * longer need, try to optimize this away. | |
591 | * | |
592 | * Since we're holding a reference ourselves, observing a refcount of 1 | |
593 | * means that we're the last holder and can skip it. Also, the refcount | |
594 | * can never increase from 1 again, so we don't need any barriers or | |
595 | * locks. | |
596 | * | |
597 | * Note that userspace could try to race with use and instate a new | |
598 | * usage _after_ we've cleared all current ones. End result will be an | |
599 | * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot | |
600 | * in this manner. | |
601 | */ | |
747a598f | 602 | if (drm_framebuffer_read_refcount(fb) > 1) { |
b62584e3 DV |
603 | drm_modeset_lock_all(dev); |
604 | /* remove from any CRTC */ | |
6295d607 | 605 | drm_for_each_crtc(crtc, dev) { |
f4510a27 | 606 | if (crtc->primary->fb == fb) { |
b62584e3 DV |
607 | /* should turn off the crtc */ |
608 | memset(&set, 0, sizeof(struct drm_mode_set)); | |
609 | set.crtc = crtc; | |
610 | set.fb = NULL; | |
611 | ret = drm_mode_set_config_internal(&set); | |
612 | if (ret) | |
613 | DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); | |
614 | } | |
5ef5f72f | 615 | } |
f453ba04 | 616 | |
6295d607 | 617 | drm_for_each_plane(plane, dev) { |
9125e618 VS |
618 | if (plane->fb == fb) |
619 | drm_plane_force_disable(plane); | |
8cf5c917 | 620 | } |
b62584e3 | 621 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
622 | } |
623 | ||
f7eff60e | 624 | drm_framebuffer_unreference(fb); |
f453ba04 | 625 | } |
f7eff60e | 626 | EXPORT_SYMBOL(drm_framebuffer_remove); |
f453ba04 | 627 | |
51fd371b RC |
628 | DEFINE_WW_CLASS(crtc_ww_class); |
629 | ||
fa3ab4c2 VS |
630 | static unsigned int drm_num_crtcs(struct drm_device *dev) |
631 | { | |
632 | unsigned int num = 0; | |
633 | struct drm_crtc *tmp; | |
634 | ||
635 | drm_for_each_crtc(tmp, dev) { | |
636 | num++; | |
637 | } | |
638 | ||
639 | return num; | |
640 | } | |
641 | ||
f453ba04 | 642 | /** |
e13161af MR |
643 | * drm_crtc_init_with_planes - Initialise a new CRTC object with |
644 | * specified primary and cursor planes. | |
f453ba04 DA |
645 | * @dev: DRM device |
646 | * @crtc: CRTC object to init | |
e13161af MR |
647 | * @primary: Primary plane for CRTC |
648 | * @cursor: Cursor plane for CRTC | |
f453ba04 | 649 | * @funcs: callbacks for the new CRTC |
f9882876 | 650 | * @name: printf style format string for the CRTC name, or NULL for default name |
f453ba04 | 651 | * |
ad6f5c34 | 652 | * Inits a new object created as base part of a driver crtc object. |
6bfc56aa | 653 | * |
c8e32cc1 | 654 | * Returns: |
6bfc56aa | 655 | * Zero on success, error code on failure. |
f453ba04 | 656 | */ |
e13161af MR |
657 | int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, |
658 | struct drm_plane *primary, | |
fc1d3e44 | 659 | struct drm_plane *cursor, |
f9882876 VS |
660 | const struct drm_crtc_funcs *funcs, |
661 | const char *name, ...) | |
f453ba04 | 662 | { |
51fd371b | 663 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
664 | int ret; |
665 | ||
522cf91f BG |
666 | WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY); |
667 | WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR); | |
668 | ||
f453ba04 DA |
669 | crtc->dev = dev; |
670 | crtc->funcs = funcs; | |
671 | ||
51fd371b | 672 | drm_modeset_lock_init(&crtc->mutex); |
6bfc56aa VS |
673 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); |
674 | if (ret) | |
baf698b0 | 675 | return ret; |
f453ba04 | 676 | |
fa3ab4c2 VS |
677 | if (name) { |
678 | va_list ap; | |
679 | ||
680 | va_start(ap, name); | |
681 | crtc->name = kvasprintf(GFP_KERNEL, name, ap); | |
682 | va_end(ap); | |
683 | } else { | |
684 | crtc->name = kasprintf(GFP_KERNEL, "crtc-%d", | |
685 | drm_num_crtcs(dev)); | |
686 | } | |
687 | if (!crtc->name) { | |
7c8f6d25 | 688 | drm_mode_object_unregister(dev, &crtc->base); |
fa3ab4c2 VS |
689 | return -ENOMEM; |
690 | } | |
691 | ||
bffd9de0 PZ |
692 | crtc->base.properties = &crtc->properties; |
693 | ||
51fd371b RC |
694 | list_add_tail(&crtc->head, &config->crtc_list); |
695 | config->num_crtc++; | |
6bfc56aa | 696 | |
e13161af | 697 | crtc->primary = primary; |
fc1d3e44 | 698 | crtc->cursor = cursor; |
e13161af MR |
699 | if (primary) |
700 | primary->possible_crtcs = 1 << drm_crtc_index(crtc); | |
fc1d3e44 MR |
701 | if (cursor) |
702 | cursor->possible_crtcs = 1 << drm_crtc_index(crtc); | |
e13161af | 703 | |
eab3bbef DV |
704 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
705 | drm_object_attach_property(&crtc->base, config->prop_active, 0); | |
955f3c33 | 706 | drm_object_attach_property(&crtc->base, config->prop_mode_id, 0); |
eab3bbef DV |
707 | } |
708 | ||
baf698b0 | 709 | return 0; |
f453ba04 | 710 | } |
e13161af | 711 | EXPORT_SYMBOL(drm_crtc_init_with_planes); |
f453ba04 DA |
712 | |
713 | /** | |
ad6f5c34 | 714 | * drm_crtc_cleanup - Clean up the core crtc usage |
f453ba04 DA |
715 | * @crtc: CRTC to cleanup |
716 | * | |
ad6f5c34 VS |
717 | * This function cleans up @crtc and removes it from the DRM mode setting |
718 | * core. Note that the function does *not* free the crtc structure itself, | |
719 | * this is the responsibility of the caller. | |
f453ba04 DA |
720 | */ |
721 | void drm_crtc_cleanup(struct drm_crtc *crtc) | |
722 | { | |
723 | struct drm_device *dev = crtc->dev; | |
724 | ||
9e1c156f SK |
725 | kfree(crtc->gamma_store); |
726 | crtc->gamma_store = NULL; | |
f453ba04 | 727 | |
51fd371b RC |
728 | drm_modeset_lock_fini(&crtc->mutex); |
729 | ||
7c8f6d25 | 730 | drm_mode_object_unregister(dev, &crtc->base); |
f453ba04 DA |
731 | list_del(&crtc->head); |
732 | dev->mode_config.num_crtc--; | |
3009c037 TR |
733 | |
734 | WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); | |
735 | if (crtc->state && crtc->funcs->atomic_destroy_state) | |
736 | crtc->funcs->atomic_destroy_state(crtc, crtc->state); | |
a18c0af1 | 737 | |
fa3ab4c2 VS |
738 | kfree(crtc->name); |
739 | ||
a18c0af1 | 740 | memset(crtc, 0, sizeof(*crtc)); |
f453ba04 DA |
741 | } |
742 | EXPORT_SYMBOL(drm_crtc_cleanup); | |
743 | ||
db5f7a6e RK |
744 | /** |
745 | * drm_crtc_index - find the index of a registered CRTC | |
746 | * @crtc: CRTC to find index for | |
747 | * | |
748 | * Given a registered CRTC, return the index of that CRTC within a DRM | |
749 | * device's list of CRTCs. | |
750 | */ | |
751 | unsigned int drm_crtc_index(struct drm_crtc *crtc) | |
752 | { | |
753 | unsigned int index = 0; | |
754 | struct drm_crtc *tmp; | |
755 | ||
e4f62546 | 756 | drm_for_each_crtc(tmp, crtc->dev) { |
db5f7a6e RK |
757 | if (tmp == crtc) |
758 | return index; | |
759 | ||
760 | index++; | |
761 | } | |
762 | ||
763 | BUG(); | |
764 | } | |
765 | EXPORT_SYMBOL(drm_crtc_index); | |
766 | ||
86f422d5 | 767 | /* |
f453ba04 DA |
768 | * drm_mode_remove - remove and free a mode |
769 | * @connector: connector list to modify | |
770 | * @mode: mode to remove | |
771 | * | |
f453ba04 DA |
772 | * Remove @mode from @connector's mode list, then free it. |
773 | */ | |
86f422d5 LD |
774 | static void drm_mode_remove(struct drm_connector *connector, |
775 | struct drm_display_mode *mode) | |
f453ba04 DA |
776 | { |
777 | list_del(&mode->head); | |
554f1d78 | 778 | drm_mode_destroy(connector->dev, mode); |
f453ba04 | 779 | } |
f453ba04 | 780 | |
b5571e9d BB |
781 | /** |
782 | * drm_display_info_set_bus_formats - set the supported bus formats | |
783 | * @info: display info to store bus formats in | |
e37bfa1a BB |
784 | * @formats: array containing the supported bus formats |
785 | * @num_formats: the number of entries in the fmts array | |
b5571e9d BB |
786 | * |
787 | * Store the supported bus formats in display info structure. | |
788 | * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for | |
789 | * a full list of available formats. | |
790 | */ | |
791 | int drm_display_info_set_bus_formats(struct drm_display_info *info, | |
792 | const u32 *formats, | |
793 | unsigned int num_formats) | |
794 | { | |
795 | u32 *fmts = NULL; | |
796 | ||
797 | if (!formats && num_formats) | |
798 | return -EINVAL; | |
799 | ||
800 | if (formats && num_formats) { | |
801 | fmts = kmemdup(formats, sizeof(*formats) * num_formats, | |
802 | GFP_KERNEL); | |
944579c5 | 803 | if (!fmts) |
b5571e9d BB |
804 | return -ENOMEM; |
805 | } | |
806 | ||
807 | kfree(info->bus_formats); | |
808 | info->bus_formats = fmts; | |
809 | info->num_bus_formats = num_formats; | |
810 | ||
811 | return 0; | |
812 | } | |
813 | EXPORT_SYMBOL(drm_display_info_set_bus_formats); | |
814 | ||
eaf99c74 CW |
815 | /** |
816 | * drm_connector_get_cmdline_mode - reads the user's cmdline mode | |
817 | * @connector: connector to quwery | |
eaf99c74 CW |
818 | * |
819 | * The kernel supports per-connector configration of its consoles through | |
820 | * use of the video= parameter. This function parses that option and | |
821 | * extracts the user's specified mode (or enable/disable status) for a | |
822 | * particular connector. This is typically only used during the early fbdev | |
823 | * setup. | |
824 | */ | |
825 | static void drm_connector_get_cmdline_mode(struct drm_connector *connector) | |
826 | { | |
827 | struct drm_cmdline_mode *mode = &connector->cmdline_mode; | |
828 | char *option = NULL; | |
829 | ||
830 | if (fb_get_options(connector->name, &option)) | |
831 | return; | |
832 | ||
833 | if (!drm_mode_parse_command_line_for_connector(option, | |
834 | connector, | |
835 | mode)) | |
836 | return; | |
837 | ||
838 | if (mode->force) { | |
839 | const char *s; | |
840 | ||
841 | switch (mode->force) { | |
842 | case DRM_FORCE_OFF: | |
843 | s = "OFF"; | |
844 | break; | |
845 | case DRM_FORCE_ON_DIGITAL: | |
846 | s = "ON - dig"; | |
847 | break; | |
848 | default: | |
849 | case DRM_FORCE_ON: | |
850 | s = "ON"; | |
851 | break; | |
852 | } | |
853 | ||
854 | DRM_INFO("forcing %s connector %s\n", connector->name, s); | |
855 | connector->force = mode->force; | |
856 | } | |
857 | ||
858 | DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", | |
859 | connector->name, | |
860 | mode->xres, mode->yres, | |
861 | mode->refresh_specified ? mode->refresh : 60, | |
862 | mode->rb ? " reduced blanking" : "", | |
863 | mode->margins ? " with margins" : "", | |
864 | mode->interlace ? " interlaced" : ""); | |
865 | } | |
866 | ||
b164d31f DA |
867 | static void drm_connector_free(struct kref *kref) |
868 | { | |
869 | struct drm_connector *connector = | |
870 | container_of(kref, struct drm_connector, base.refcount); | |
871 | struct drm_device *dev = connector->dev; | |
872 | ||
873 | drm_mode_object_unregister(dev, &connector->base); | |
874 | connector->funcs->destroy(connector); | |
875 | } | |
876 | ||
f453ba04 DA |
877 | /** |
878 | * drm_connector_init - Init a preallocated connector | |
879 | * @dev: DRM device | |
880 | * @connector: the connector to init | |
881 | * @funcs: callbacks for this connector | |
065a50ed | 882 | * @connector_type: user visible type of the connector |
f453ba04 | 883 | * |
f453ba04 DA |
884 | * Initialises a preallocated connector. Connectors should be |
885 | * subclassed as part of driver connector objects. | |
6bfc56aa | 886 | * |
c8e32cc1 | 887 | * Returns: |
6bfc56aa | 888 | * Zero on success, error code on failure. |
f453ba04 | 889 | */ |
6bfc56aa VS |
890 | int drm_connector_init(struct drm_device *dev, |
891 | struct drm_connector *connector, | |
892 | const struct drm_connector_funcs *funcs, | |
893 | int connector_type) | |
f453ba04 | 894 | { |
ae16c597 | 895 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa | 896 | int ret; |
b21e3afe IM |
897 | struct ida *connector_ida = |
898 | &drm_connector_enum_list[connector_type].ida; | |
6bfc56aa | 899 | |
84849903 | 900 | drm_modeset_lock_all(dev); |
f453ba04 | 901 | |
b164d31f DA |
902 | ret = drm_mode_object_get_reg(dev, &connector->base, |
903 | DRM_MODE_OBJECT_CONNECTOR, | |
904 | false, drm_connector_free); | |
6bfc56aa | 905 | if (ret) |
2abdd313 | 906 | goto out_unlock; |
6bfc56aa | 907 | |
7e3bdf4a | 908 | connector->base.properties = &connector->properties; |
f453ba04 DA |
909 | connector->dev = dev; |
910 | connector->funcs = funcs; | |
5fff80bb ML |
911 | |
912 | connector->connector_id = ida_simple_get(&config->connector_ida, 0, 0, GFP_KERNEL); | |
913 | if (connector->connector_id < 0) { | |
914 | ret = connector->connector_id; | |
915 | goto out_put; | |
916 | } | |
917 | ||
f453ba04 DA |
918 | connector->connector_type = connector_type; |
919 | connector->connector_type_id = | |
b21e3afe IM |
920 | ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); |
921 | if (connector->connector_type_id < 0) { | |
922 | ret = connector->connector_type_id; | |
5fff80bb | 923 | goto out_put_id; |
b21e3afe | 924 | } |
2abdd313 JN |
925 | connector->name = |
926 | kasprintf(GFP_KERNEL, "%s-%d", | |
927 | drm_connector_enum_list[connector_type].name, | |
928 | connector->connector_type_id); | |
929 | if (!connector->name) { | |
930 | ret = -ENOMEM; | |
5fff80bb | 931 | goto out_put_type_id; |
2abdd313 JN |
932 | } |
933 | ||
f453ba04 DA |
934 | INIT_LIST_HEAD(&connector->probed_modes); |
935 | INIT_LIST_HEAD(&connector->modes); | |
936 | connector->edid_blob_ptr = NULL; | |
5e2cb2f6 | 937 | connector->status = connector_status_unknown; |
f453ba04 | 938 | |
eaf99c74 CW |
939 | drm_connector_get_cmdline_mode(connector); |
940 | ||
c7eb76f4 DV |
941 | /* We should add connectors at the end to avoid upsetting the connector |
942 | * index too much. */ | |
ae16c597 RC |
943 | list_add_tail(&connector->head, &config->connector_list); |
944 | config->num_connector++; | |
f453ba04 | 945 | |
a7331e5c | 946 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) |
58495563 | 947 | drm_object_attach_property(&connector->base, |
ae16c597 | 948 | config->edid_property, |
a7331e5c | 949 | 0); |
f453ba04 | 950 | |
58495563 | 951 | drm_object_attach_property(&connector->base, |
ae16c597 RC |
952 | config->dpms_property, 0); |
953 | ||
954 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { | |
955 | drm_object_attach_property(&connector->base, config->prop_crtc_id, 0); | |
956 | } | |
f453ba04 | 957 | |
30f65707 | 958 | connector->debugfs_entry = NULL; |
5fff80bb ML |
959 | out_put_type_id: |
960 | if (ret) | |
961 | ida_remove(connector_ida, connector->connector_type_id); | |
962 | out_put_id: | |
963 | if (ret) | |
964 | ida_remove(&config->connector_ida, connector->connector_id); | |
2abdd313 JN |
965 | out_put: |
966 | if (ret) | |
7c8f6d25 | 967 | drm_mode_object_unregister(dev, &connector->base); |
2abdd313 JN |
968 | |
969 | out_unlock: | |
84849903 | 970 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
971 | |
972 | return ret; | |
f453ba04 DA |
973 | } |
974 | EXPORT_SYMBOL(drm_connector_init); | |
975 | ||
976 | /** | |
977 | * drm_connector_cleanup - cleans up an initialised connector | |
978 | * @connector: connector to cleanup | |
979 | * | |
f453ba04 DA |
980 | * Cleans up the connector but doesn't free the object. |
981 | */ | |
982 | void drm_connector_cleanup(struct drm_connector *connector) | |
983 | { | |
984 | struct drm_device *dev = connector->dev; | |
985 | struct drm_display_mode *mode, *t; | |
986 | ||
40d9b043 DA |
987 | if (connector->tile_group) { |
988 | drm_mode_put_tile_group(dev, connector->tile_group); | |
989 | connector->tile_group = NULL; | |
990 | } | |
991 | ||
f453ba04 DA |
992 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) |
993 | drm_mode_remove(connector, mode); | |
994 | ||
995 | list_for_each_entry_safe(mode, t, &connector->modes, head) | |
996 | drm_mode_remove(connector, mode); | |
997 | ||
b21e3afe IM |
998 | ida_remove(&drm_connector_enum_list[connector->connector_type].ida, |
999 | connector->connector_type_id); | |
1000 | ||
5fff80bb ML |
1001 | ida_remove(&dev->mode_config.connector_ida, |
1002 | connector->connector_id); | |
1003 | ||
b5571e9d | 1004 | kfree(connector->display_info.bus_formats); |
7c8f6d25 | 1005 | drm_mode_object_unregister(dev, &connector->base); |
2abdd313 JN |
1006 | kfree(connector->name); |
1007 | connector->name = NULL; | |
f453ba04 | 1008 | list_del(&connector->head); |
6380c509 | 1009 | dev->mode_config.num_connector--; |
3009c037 TR |
1010 | |
1011 | WARN_ON(connector->state && !connector->funcs->atomic_destroy_state); | |
1012 | if (connector->state && connector->funcs->atomic_destroy_state) | |
1013 | connector->funcs->atomic_destroy_state(connector, | |
1014 | connector->state); | |
a18c0af1 TR |
1015 | |
1016 | memset(connector, 0, sizeof(*connector)); | |
f453ba04 DA |
1017 | } |
1018 | EXPORT_SYMBOL(drm_connector_cleanup); | |
1019 | ||
34ea3d38 TW |
1020 | /** |
1021 | * drm_connector_register - register a connector | |
1022 | * @connector: the connector to register | |
1023 | * | |
1024 | * Register userspace interfaces for a connector | |
1025 | * | |
1026 | * Returns: | |
1027 | * Zero on success, error code on failure. | |
1028 | */ | |
1029 | int drm_connector_register(struct drm_connector *connector) | |
1030 | { | |
30f65707 TW |
1031 | int ret; |
1032 | ||
1033 | ret = drm_sysfs_connector_add(connector); | |
1034 | if (ret) | |
1035 | return ret; | |
1036 | ||
1037 | ret = drm_debugfs_connector_add(connector); | |
1038 | if (ret) { | |
1039 | drm_sysfs_connector_remove(connector); | |
1040 | return ret; | |
1041 | } | |
1042 | ||
fdf2c85f DV |
1043 | drm_mode_object_register(connector->dev, &connector->base); |
1044 | ||
30f65707 | 1045 | return 0; |
34ea3d38 TW |
1046 | } |
1047 | EXPORT_SYMBOL(drm_connector_register); | |
1048 | ||
1049 | /** | |
1050 | * drm_connector_unregister - unregister a connector | |
1051 | * @connector: the connector to unregister | |
1052 | * | |
1053 | * Unregister userspace interfaces for a connector | |
1054 | */ | |
1055 | void drm_connector_unregister(struct drm_connector *connector) | |
1056 | { | |
1057 | drm_sysfs_connector_remove(connector); | |
30f65707 | 1058 | drm_debugfs_connector_remove(connector); |
34ea3d38 TW |
1059 | } |
1060 | EXPORT_SYMBOL(drm_connector_unregister); | |
1061 | ||
54d2c2da AB |
1062 | /** |
1063 | * drm_connector_register_all - register all connectors | |
1064 | * @dev: drm device | |
1065 | * | |
1066 | * This function registers all connectors in sysfs and other places so that | |
1067 | * userspace can start to access them. Drivers can call it after calling | |
1068 | * drm_dev_register() to complete the device registration, if they don't call | |
1069 | * drm_connector_register() on each connector individually. | |
1070 | * | |
1071 | * When a device is unplugged and should be removed from userspace access, | |
1072 | * call drm_connector_unregister_all(), which is the inverse of this | |
1073 | * function. | |
1074 | * | |
1075 | * Returns: | |
1076 | * Zero on success, error code on failure. | |
1077 | */ | |
1078 | int drm_connector_register_all(struct drm_device *dev) | |
1079 | { | |
1080 | struct drm_connector *connector; | |
1081 | int ret; | |
1082 | ||
1083 | mutex_lock(&dev->mode_config.mutex); | |
1084 | ||
1085 | drm_for_each_connector(connector, dev) { | |
1086 | ret = drm_connector_register(connector); | |
1087 | if (ret) | |
1088 | goto err; | |
1089 | } | |
1090 | ||
1091 | mutex_unlock(&dev->mode_config.mutex); | |
1092 | ||
1093 | return 0; | |
1094 | ||
1095 | err: | |
1096 | mutex_unlock(&dev->mode_config.mutex); | |
1097 | drm_connector_unregister_all(dev); | |
1098 | return ret; | |
1099 | } | |
1100 | EXPORT_SYMBOL(drm_connector_register_all); | |
1101 | ||
c8e32cc1 | 1102 | /** |
6c87e5c3 | 1103 | * drm_connector_unregister_all - unregister connector userspace interfaces |
c8e32cc1 DV |
1104 | * @dev: drm device |
1105 | * | |
6c87e5c3 AB |
1106 | * This functions unregisters all connectors from sysfs and other places so |
1107 | * that userspace can no longer access them. Drivers should call this as the | |
1108 | * first step tearing down the device instace, or when the underlying | |
1109 | * physical device disappeared (e.g. USB unplug), right before calling | |
1110 | * drm_dev_unregister(). | |
c8e32cc1 | 1111 | */ |
6c87e5c3 | 1112 | void drm_connector_unregister_all(struct drm_device *dev) |
cbc7e221 DA |
1113 | { |
1114 | struct drm_connector *connector; | |
1115 | ||
9a9f5ce8 | 1116 | /* FIXME: taking the mode config mutex ends up in a clash with sysfs */ |
14ba0031 | 1117 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) |
34ea3d38 | 1118 | drm_connector_unregister(connector); |
cbc7e221 | 1119 | } |
6c87e5c3 | 1120 | EXPORT_SYMBOL(drm_connector_unregister_all); |
cbc7e221 | 1121 | |
c8e32cc1 DV |
1122 | /** |
1123 | * drm_encoder_init - Init a preallocated encoder | |
1124 | * @dev: drm device | |
1125 | * @encoder: the encoder to init | |
1126 | * @funcs: callbacks for this encoder | |
1127 | * @encoder_type: user visible type of the encoder | |
13a3d91f | 1128 | * @name: printf style format string for the encoder name, or NULL for default name |
c8e32cc1 DV |
1129 | * |
1130 | * Initialises a preallocated encoder. Encoder should be | |
1131 | * subclassed as part of driver encoder objects. | |
1132 | * | |
1133 | * Returns: | |
1134 | * Zero on success, error code on failure. | |
1135 | */ | |
6bfc56aa | 1136 | int drm_encoder_init(struct drm_device *dev, |
cbc7e221 DA |
1137 | struct drm_encoder *encoder, |
1138 | const struct drm_encoder_funcs *funcs, | |
13a3d91f | 1139 | int encoder_type, const char *name, ...) |
f453ba04 | 1140 | { |
6bfc56aa VS |
1141 | int ret; |
1142 | ||
84849903 | 1143 | drm_modeset_lock_all(dev); |
f453ba04 | 1144 | |
6bfc56aa VS |
1145 | ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
1146 | if (ret) | |
e5748946 | 1147 | goto out_unlock; |
f453ba04 | 1148 | |
6bfc56aa | 1149 | encoder->dev = dev; |
f453ba04 DA |
1150 | encoder->encoder_type = encoder_type; |
1151 | encoder->funcs = funcs; | |
86bf546b VS |
1152 | if (name) { |
1153 | va_list ap; | |
1154 | ||
1155 | va_start(ap, name); | |
1156 | encoder->name = kvasprintf(GFP_KERNEL, name, ap); | |
1157 | va_end(ap); | |
1158 | } else { | |
1159 | encoder->name = kasprintf(GFP_KERNEL, "%s-%d", | |
1160 | drm_encoder_enum_list[encoder_type].name, | |
1161 | encoder->base.id); | |
1162 | } | |
e5748946 JN |
1163 | if (!encoder->name) { |
1164 | ret = -ENOMEM; | |
1165 | goto out_put; | |
1166 | } | |
f453ba04 DA |
1167 | |
1168 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); | |
1169 | dev->mode_config.num_encoder++; | |
1170 | ||
e5748946 JN |
1171 | out_put: |
1172 | if (ret) | |
7c8f6d25 | 1173 | drm_mode_object_unregister(dev, &encoder->base); |
e5748946 JN |
1174 | |
1175 | out_unlock: | |
84849903 | 1176 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
1177 | |
1178 | return ret; | |
f453ba04 DA |
1179 | } |
1180 | EXPORT_SYMBOL(drm_encoder_init); | |
1181 | ||
47d7777f ML |
1182 | /** |
1183 | * drm_encoder_index - find the index of a registered encoder | |
1184 | * @encoder: encoder to find index for | |
1185 | * | |
1186 | * Given a registered encoder, return the index of that encoder within a DRM | |
1187 | * device's list of encoders. | |
1188 | */ | |
1189 | unsigned int drm_encoder_index(struct drm_encoder *encoder) | |
1190 | { | |
1191 | unsigned int index = 0; | |
1192 | struct drm_encoder *tmp; | |
1193 | ||
1194 | drm_for_each_encoder(tmp, encoder->dev) { | |
1195 | if (tmp == encoder) | |
1196 | return index; | |
1197 | ||
1198 | index++; | |
1199 | } | |
1200 | ||
1201 | BUG(); | |
1202 | } | |
1203 | EXPORT_SYMBOL(drm_encoder_index); | |
1204 | ||
c8e32cc1 DV |
1205 | /** |
1206 | * drm_encoder_cleanup - cleans up an initialised encoder | |
1207 | * @encoder: encoder to cleanup | |
1208 | * | |
1209 | * Cleans up the encoder but doesn't free the object. | |
1210 | */ | |
f453ba04 DA |
1211 | void drm_encoder_cleanup(struct drm_encoder *encoder) |
1212 | { | |
1213 | struct drm_device *dev = encoder->dev; | |
4dfd909f | 1214 | |
84849903 | 1215 | drm_modeset_lock_all(dev); |
7c8f6d25 | 1216 | drm_mode_object_unregister(dev, &encoder->base); |
e5748946 | 1217 | kfree(encoder->name); |
f453ba04 | 1218 | list_del(&encoder->head); |
6380c509 | 1219 | dev->mode_config.num_encoder--; |
84849903 | 1220 | drm_modeset_unlock_all(dev); |
a18c0af1 TR |
1221 | |
1222 | memset(encoder, 0, sizeof(*encoder)); | |
f453ba04 DA |
1223 | } |
1224 | EXPORT_SYMBOL(drm_encoder_cleanup); | |
1225 | ||
9f4c97a2 VS |
1226 | static unsigned int drm_num_planes(struct drm_device *dev) |
1227 | { | |
1228 | unsigned int num = 0; | |
1229 | struct drm_plane *tmp; | |
1230 | ||
1231 | drm_for_each_plane(tmp, dev) { | |
1232 | num++; | |
1233 | } | |
1234 | ||
1235 | return num; | |
1236 | } | |
1237 | ||
35f2c3ae | 1238 | /** |
dc415ff9 | 1239 | * drm_universal_plane_init - Initialize a new universal plane object |
35f2c3ae VS |
1240 | * @dev: DRM device |
1241 | * @plane: plane object to init | |
1242 | * @possible_crtcs: bitmask of possible CRTCs | |
1243 | * @funcs: callbacks for the new plane | |
1244 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1245 | * @format_count: number of elements in @formats | |
dc415ff9 | 1246 | * @type: type of plane (overlay, primary, cursor) |
b0b3b795 | 1247 | * @name: printf style format string for the plane name, or NULL for default name |
35f2c3ae | 1248 | * |
dc415ff9 | 1249 | * Initializes a plane object of type @type. |
35f2c3ae | 1250 | * |
c8e32cc1 | 1251 | * Returns: |
35f2c3ae VS |
1252 | * Zero on success, error code on failure. |
1253 | */ | |
dc415ff9 MR |
1254 | int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, |
1255 | unsigned long possible_crtcs, | |
1256 | const struct drm_plane_funcs *funcs, | |
45e3743a | 1257 | const uint32_t *formats, unsigned int format_count, |
b0b3b795 VS |
1258 | enum drm_plane_type type, |
1259 | const char *name, ...) | |
8cf5c917 | 1260 | { |
6b4959f4 | 1261 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
1262 | int ret; |
1263 | ||
6bfc56aa VS |
1264 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
1265 | if (ret) | |
baf698b0 | 1266 | return ret; |
6bfc56aa | 1267 | |
4d02e2de DV |
1268 | drm_modeset_lock_init(&plane->mutex); |
1269 | ||
4d93914a | 1270 | plane->base.properties = &plane->properties; |
8cf5c917 | 1271 | plane->dev = dev; |
8cf5c917 | 1272 | plane->funcs = funcs; |
2f6c5389 TR |
1273 | plane->format_types = kmalloc_array(format_count, sizeof(uint32_t), |
1274 | GFP_KERNEL); | |
8cf5c917 JB |
1275 | if (!plane->format_types) { |
1276 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); | |
7c8f6d25 | 1277 | drm_mode_object_unregister(dev, &plane->base); |
baf698b0 | 1278 | return -ENOMEM; |
8cf5c917 JB |
1279 | } |
1280 | ||
9f4c97a2 VS |
1281 | if (name) { |
1282 | va_list ap; | |
1283 | ||
1284 | va_start(ap, name); | |
1285 | plane->name = kvasprintf(GFP_KERNEL, name, ap); | |
1286 | va_end(ap); | |
1287 | } else { | |
1288 | plane->name = kasprintf(GFP_KERNEL, "plane-%d", | |
1289 | drm_num_planes(dev)); | |
1290 | } | |
1291 | if (!plane->name) { | |
1292 | kfree(plane->format_types); | |
7c8f6d25 | 1293 | drm_mode_object_unregister(dev, &plane->base); |
9f4c97a2 VS |
1294 | return -ENOMEM; |
1295 | } | |
1296 | ||
308e5bcb | 1297 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
8cf5c917 JB |
1298 | plane->format_count = format_count; |
1299 | plane->possible_crtcs = possible_crtcs; | |
dc415ff9 | 1300 | plane->type = type; |
8cf5c917 | 1301 | |
6b4959f4 RC |
1302 | list_add_tail(&plane->head, &config->plane_list); |
1303 | config->num_total_plane++; | |
dc415ff9 | 1304 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) |
6b4959f4 | 1305 | config->num_overlay_plane++; |
8cf5c917 | 1306 | |
9922ab5a | 1307 | drm_object_attach_property(&plane->base, |
6b4959f4 | 1308 | config->plane_type_property, |
9922ab5a RC |
1309 | plane->type); |
1310 | ||
6b4959f4 RC |
1311 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
1312 | drm_object_attach_property(&plane->base, config->prop_fb_id, 0); | |
1313 | drm_object_attach_property(&plane->base, config->prop_crtc_id, 0); | |
1314 | drm_object_attach_property(&plane->base, config->prop_crtc_x, 0); | |
1315 | drm_object_attach_property(&plane->base, config->prop_crtc_y, 0); | |
1316 | drm_object_attach_property(&plane->base, config->prop_crtc_w, 0); | |
1317 | drm_object_attach_property(&plane->base, config->prop_crtc_h, 0); | |
1318 | drm_object_attach_property(&plane->base, config->prop_src_x, 0); | |
1319 | drm_object_attach_property(&plane->base, config->prop_src_y, 0); | |
1320 | drm_object_attach_property(&plane->base, config->prop_src_w, 0); | |
1321 | drm_object_attach_property(&plane->base, config->prop_src_h, 0); | |
1322 | } | |
1323 | ||
baf698b0 | 1324 | return 0; |
8cf5c917 | 1325 | } |
dc415ff9 MR |
1326 | EXPORT_SYMBOL(drm_universal_plane_init); |
1327 | ||
1328 | /** | |
1329 | * drm_plane_init - Initialize a legacy plane | |
1330 | * @dev: DRM device | |
1331 | * @plane: plane object to init | |
1332 | * @possible_crtcs: bitmask of possible CRTCs | |
1333 | * @funcs: callbacks for the new plane | |
1334 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1335 | * @format_count: number of elements in @formats | |
1336 | * @is_primary: plane type (primary vs overlay) | |
1337 | * | |
1338 | * Legacy API to initialize a DRM plane. | |
1339 | * | |
1340 | * New drivers should call drm_universal_plane_init() instead. | |
1341 | * | |
1342 | * Returns: | |
1343 | * Zero on success, error code on failure. | |
1344 | */ | |
1345 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, | |
1346 | unsigned long possible_crtcs, | |
1347 | const struct drm_plane_funcs *funcs, | |
45e3743a | 1348 | const uint32_t *formats, unsigned int format_count, |
dc415ff9 MR |
1349 | bool is_primary) |
1350 | { | |
1351 | enum drm_plane_type type; | |
1352 | ||
1353 | type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; | |
1354 | return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, | |
b0b3b795 | 1355 | formats, format_count, type, NULL); |
dc415ff9 | 1356 | } |
8cf5c917 JB |
1357 | EXPORT_SYMBOL(drm_plane_init); |
1358 | ||
35f2c3ae VS |
1359 | /** |
1360 | * drm_plane_cleanup - Clean up the core plane usage | |
1361 | * @plane: plane to cleanup | |
1362 | * | |
1363 | * This function cleans up @plane and removes it from the DRM mode setting | |
1364 | * core. Note that the function does *not* free the plane structure itself, | |
1365 | * this is the responsibility of the caller. | |
1366 | */ | |
8cf5c917 JB |
1367 | void drm_plane_cleanup(struct drm_plane *plane) |
1368 | { | |
1369 | struct drm_device *dev = plane->dev; | |
1370 | ||
84849903 | 1371 | drm_modeset_lock_all(dev); |
8cf5c917 | 1372 | kfree(plane->format_types); |
7c8f6d25 | 1373 | drm_mode_object_unregister(dev, &plane->base); |
dc415ff9 MR |
1374 | |
1375 | BUG_ON(list_empty(&plane->head)); | |
1376 | ||
1377 | list_del(&plane->head); | |
1378 | dev->mode_config.num_total_plane--; | |
1379 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) | |
1380 | dev->mode_config.num_overlay_plane--; | |
84849903 | 1381 | drm_modeset_unlock_all(dev); |
3009c037 TR |
1382 | |
1383 | WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); | |
1384 | if (plane->state && plane->funcs->atomic_destroy_state) | |
1385 | plane->funcs->atomic_destroy_state(plane, plane->state); | |
a18c0af1 | 1386 | |
9f4c97a2 VS |
1387 | kfree(plane->name); |
1388 | ||
a18c0af1 | 1389 | memset(plane, 0, sizeof(*plane)); |
8cf5c917 JB |
1390 | } |
1391 | EXPORT_SYMBOL(drm_plane_cleanup); | |
1392 | ||
10f637bf DV |
1393 | /** |
1394 | * drm_plane_index - find the index of a registered plane | |
1395 | * @plane: plane to find index for | |
1396 | * | |
1397 | * Given a registered plane, return the index of that CRTC within a DRM | |
1398 | * device's list of planes. | |
1399 | */ | |
1400 | unsigned int drm_plane_index(struct drm_plane *plane) | |
1401 | { | |
1402 | unsigned int index = 0; | |
1403 | struct drm_plane *tmp; | |
1404 | ||
e4f62546 | 1405 | drm_for_each_plane(tmp, plane->dev) { |
10f637bf DV |
1406 | if (tmp == plane) |
1407 | return index; | |
1408 | ||
1409 | index++; | |
1410 | } | |
1411 | ||
1412 | BUG(); | |
1413 | } | |
1414 | EXPORT_SYMBOL(drm_plane_index); | |
1415 | ||
f81338a5 CK |
1416 | /** |
1417 | * drm_plane_from_index - find the registered plane at an index | |
1418 | * @dev: DRM device | |
1419 | * @idx: index of registered plane to find for | |
1420 | * | |
1421 | * Given a plane index, return the registered plane from DRM device's | |
1422 | * list of planes with matching index. | |
1423 | */ | |
1424 | struct drm_plane * | |
1425 | drm_plane_from_index(struct drm_device *dev, int idx) | |
1426 | { | |
1427 | struct drm_plane *plane; | |
1428 | unsigned int i = 0; | |
1429 | ||
6295d607 | 1430 | drm_for_each_plane(plane, dev) { |
f81338a5 CK |
1431 | if (i == idx) |
1432 | return plane; | |
1433 | i++; | |
1434 | } | |
1435 | return NULL; | |
1436 | } | |
1437 | EXPORT_SYMBOL(drm_plane_from_index); | |
1438 | ||
35f2c3ae VS |
1439 | /** |
1440 | * drm_plane_force_disable - Forcibly disable a plane | |
1441 | * @plane: plane to disable | |
1442 | * | |
1443 | * Forces the plane to be disabled. | |
1444 | * | |
1445 | * Used when the plane's current framebuffer is destroyed, | |
1446 | * and when restoring fbdev mode. | |
1447 | */ | |
9125e618 VS |
1448 | void drm_plane_force_disable(struct drm_plane *plane) |
1449 | { | |
1450 | int ret; | |
1451 | ||
3d30a59b | 1452 | if (!plane->fb) |
9125e618 VS |
1453 | return; |
1454 | ||
3d30a59b | 1455 | plane->old_fb = plane->fb; |
9125e618 | 1456 | ret = plane->funcs->disable_plane(plane); |
731cce48 | 1457 | if (ret) { |
9125e618 | 1458 | DRM_ERROR("failed to disable plane with busy fb\n"); |
3d30a59b | 1459 | plane->old_fb = NULL; |
731cce48 DV |
1460 | return; |
1461 | } | |
9125e618 | 1462 | /* disconnect the plane from the fb and crtc: */ |
220dd2bc | 1463 | drm_framebuffer_unreference(plane->old_fb); |
3d30a59b | 1464 | plane->old_fb = NULL; |
9125e618 VS |
1465 | plane->fb = NULL; |
1466 | plane->crtc = NULL; | |
1467 | } | |
1468 | EXPORT_SYMBOL(drm_plane_force_disable); | |
1469 | ||
6b4959f4 | 1470 | static int drm_mode_create_standard_properties(struct drm_device *dev) |
f453ba04 | 1471 | { |
356af0e1 | 1472 | struct drm_property *prop; |
f453ba04 DA |
1473 | |
1474 | /* | |
1475 | * Standard properties (apply to all connectors) | |
1476 | */ | |
356af0e1 | 1477 | prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | |
f453ba04 DA |
1478 | DRM_MODE_PROP_IMMUTABLE, |
1479 | "EDID", 0); | |
356af0e1 RC |
1480 | if (!prop) |
1481 | return -ENOMEM; | |
1482 | dev->mode_config.edid_property = prop; | |
f453ba04 | 1483 | |
356af0e1 | 1484 | prop = drm_property_create_enum(dev, 0, |
4a67d391 SH |
1485 | "DPMS", drm_dpms_enum_list, |
1486 | ARRAY_SIZE(drm_dpms_enum_list)); | |
356af0e1 RC |
1487 | if (!prop) |
1488 | return -ENOMEM; | |
1489 | dev->mode_config.dpms_property = prop; | |
6f134d7b | 1490 | |
356af0e1 RC |
1491 | prop = drm_property_create(dev, |
1492 | DRM_MODE_PROP_BLOB | | |
1493 | DRM_MODE_PROP_IMMUTABLE, | |
1494 | "PATH", 0); | |
1495 | if (!prop) | |
1496 | return -ENOMEM; | |
1497 | dev->mode_config.path_property = prop; | |
f453ba04 | 1498 | |
356af0e1 RC |
1499 | prop = drm_property_create(dev, |
1500 | DRM_MODE_PROP_BLOB | | |
1501 | DRM_MODE_PROP_IMMUTABLE, | |
1502 | "TILE", 0); | |
1503 | if (!prop) | |
1504 | return -ENOMEM; | |
1505 | dev->mode_config.tile_property = prop; | |
9922ab5a | 1506 | |
6b4959f4 | 1507 | prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
9922ab5a RC |
1508 | "type", drm_plane_type_enum_list, |
1509 | ARRAY_SIZE(drm_plane_type_enum_list)); | |
6b4959f4 RC |
1510 | if (!prop) |
1511 | return -ENOMEM; | |
1512 | dev->mode_config.plane_type_property = prop; | |
1513 | ||
1514 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1515 | "SRC_X", 0, UINT_MAX); | |
1516 | if (!prop) | |
1517 | return -ENOMEM; | |
1518 | dev->mode_config.prop_src_x = prop; | |
1519 | ||
1520 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1521 | "SRC_Y", 0, UINT_MAX); | |
1522 | if (!prop) | |
1523 | return -ENOMEM; | |
1524 | dev->mode_config.prop_src_y = prop; | |
1525 | ||
1526 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1527 | "SRC_W", 0, UINT_MAX); | |
1528 | if (!prop) | |
1529 | return -ENOMEM; | |
1530 | dev->mode_config.prop_src_w = prop; | |
1531 | ||
1532 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1533 | "SRC_H", 0, UINT_MAX); | |
1534 | if (!prop) | |
1535 | return -ENOMEM; | |
1536 | dev->mode_config.prop_src_h = prop; | |
1537 | ||
1538 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
1539 | "CRTC_X", INT_MIN, INT_MAX); | |
1540 | if (!prop) | |
1541 | return -ENOMEM; | |
1542 | dev->mode_config.prop_crtc_x = prop; | |
1543 | ||
1544 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
1545 | "CRTC_Y", INT_MIN, INT_MAX); | |
1546 | if (!prop) | |
1547 | return -ENOMEM; | |
1548 | dev->mode_config.prop_crtc_y = prop; | |
1549 | ||
1550 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1551 | "CRTC_W", 0, INT_MAX); | |
1552 | if (!prop) | |
1553 | return -ENOMEM; | |
1554 | dev->mode_config.prop_crtc_w = prop; | |
1555 | ||
1556 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1557 | "CRTC_H", 0, INT_MAX); | |
1558 | if (!prop) | |
1559 | return -ENOMEM; | |
1560 | dev->mode_config.prop_crtc_h = prop; | |
1561 | ||
1562 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, | |
1563 | "FB_ID", DRM_MODE_OBJECT_FB); | |
1564 | if (!prop) | |
1565 | return -ENOMEM; | |
1566 | dev->mode_config.prop_fb_id = prop; | |
1567 | ||
1568 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, | |
1569 | "CRTC_ID", DRM_MODE_OBJECT_CRTC); | |
1570 | if (!prop) | |
1571 | return -ENOMEM; | |
1572 | dev->mode_config.prop_crtc_id = prop; | |
9922ab5a | 1573 | |
eab3bbef DV |
1574 | prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, |
1575 | "ACTIVE"); | |
1576 | if (!prop) | |
1577 | return -ENOMEM; | |
1578 | dev->mode_config.prop_active = prop; | |
1579 | ||
955f3c33 DS |
1580 | prop = drm_property_create(dev, |
1581 | DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB, | |
1582 | "MODE_ID", 0); | |
1583 | if (!prop) | |
1584 | return -ENOMEM; | |
1585 | dev->mode_config.prop_mode_id = prop; | |
1586 | ||
5488dc16 LL |
1587 | prop = drm_property_create(dev, |
1588 | DRM_MODE_PROP_BLOB, | |
1589 | "DEGAMMA_LUT", 0); | |
1590 | if (!prop) | |
1591 | return -ENOMEM; | |
1592 | dev->mode_config.degamma_lut_property = prop; | |
1593 | ||
1594 | prop = drm_property_create_range(dev, | |
1595 | DRM_MODE_PROP_IMMUTABLE, | |
1596 | "DEGAMMA_LUT_SIZE", 0, UINT_MAX); | |
1597 | if (!prop) | |
1598 | return -ENOMEM; | |
1599 | dev->mode_config.degamma_lut_size_property = prop; | |
1600 | ||
1601 | prop = drm_property_create(dev, | |
1602 | DRM_MODE_PROP_BLOB, | |
1603 | "CTM", 0); | |
1604 | if (!prop) | |
1605 | return -ENOMEM; | |
1606 | dev->mode_config.ctm_property = prop; | |
1607 | ||
1608 | prop = drm_property_create(dev, | |
1609 | DRM_MODE_PROP_BLOB, | |
1610 | "GAMMA_LUT", 0); | |
1611 | if (!prop) | |
1612 | return -ENOMEM; | |
1613 | dev->mode_config.gamma_lut_property = prop; | |
1614 | ||
1615 | prop = drm_property_create_range(dev, | |
1616 | DRM_MODE_PROP_IMMUTABLE, | |
1617 | "GAMMA_LUT_SIZE", 0, UINT_MAX); | |
1618 | if (!prop) | |
1619 | return -ENOMEM; | |
1620 | dev->mode_config.gamma_lut_size_property = prop; | |
1621 | ||
9922ab5a RC |
1622 | return 0; |
1623 | } | |
1624 | ||
f453ba04 DA |
1625 | /** |
1626 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties | |
1627 | * @dev: DRM device | |
1628 | * | |
1629 | * Called by a driver the first time a DVI-I connector is made. | |
1630 | */ | |
1631 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) | |
1632 | { | |
1633 | struct drm_property *dvi_i_selector; | |
1634 | struct drm_property *dvi_i_subconnector; | |
f453ba04 DA |
1635 | |
1636 | if (dev->mode_config.dvi_i_select_subconnector_property) | |
1637 | return 0; | |
1638 | ||
1639 | dvi_i_selector = | |
4a67d391 | 1640 | drm_property_create_enum(dev, 0, |
f453ba04 | 1641 | "select subconnector", |
4a67d391 | 1642 | drm_dvi_i_select_enum_list, |
f453ba04 | 1643 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
f453ba04 DA |
1644 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
1645 | ||
4a67d391 | 1646 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
f453ba04 | 1647 | "subconnector", |
4a67d391 | 1648 | drm_dvi_i_subconnector_enum_list, |
f453ba04 | 1649 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
f453ba04 DA |
1650 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
1651 | ||
1652 | return 0; | |
1653 | } | |
1654 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); | |
1655 | ||
1656 | /** | |
1657 | * drm_create_tv_properties - create TV specific connector properties | |
1658 | * @dev: DRM device | |
1659 | * @num_modes: number of different TV formats (modes) supported | |
1660 | * @modes: array of pointers to strings containing name of each format | |
1661 | * | |
1662 | * Called by a driver's TV initialization routine, this function creates | |
1663 | * the TV specific connector properties for a given device. Caller is | |
1664 | * responsible for allocating a list of format names and passing them to | |
1665 | * this routine. | |
1666 | */ | |
2f763312 TR |
1667 | int drm_mode_create_tv_properties(struct drm_device *dev, |
1668 | unsigned int num_modes, | |
b7c914b3 | 1669 | const char * const modes[]) |
f453ba04 DA |
1670 | { |
1671 | struct drm_property *tv_selector; | |
1672 | struct drm_property *tv_subconnector; | |
2f763312 | 1673 | unsigned int i; |
f453ba04 DA |
1674 | |
1675 | if (dev->mode_config.tv_select_subconnector_property) | |
1676 | return 0; | |
1677 | ||
1678 | /* | |
1679 | * Basic connector properties | |
1680 | */ | |
4a67d391 | 1681 | tv_selector = drm_property_create_enum(dev, 0, |
f453ba04 | 1682 | "select subconnector", |
4a67d391 | 1683 | drm_tv_select_enum_list, |
f453ba04 | 1684 | ARRAY_SIZE(drm_tv_select_enum_list)); |
48aa1e74 IY |
1685 | if (!tv_selector) |
1686 | goto nomem; | |
1687 | ||
f453ba04 DA |
1688 | dev->mode_config.tv_select_subconnector_property = tv_selector; |
1689 | ||
1690 | tv_subconnector = | |
4a67d391 SH |
1691 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1692 | "subconnector", | |
1693 | drm_tv_subconnector_enum_list, | |
f453ba04 | 1694 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
48aa1e74 IY |
1695 | if (!tv_subconnector) |
1696 | goto nomem; | |
f453ba04 DA |
1697 | dev->mode_config.tv_subconnector_property = tv_subconnector; |
1698 | ||
1699 | /* | |
1700 | * Other, TV specific properties: margins & TV modes. | |
1701 | */ | |
1702 | dev->mode_config.tv_left_margin_property = | |
d9bc3c02 | 1703 | drm_property_create_range(dev, 0, "left margin", 0, 100); |
48aa1e74 IY |
1704 | if (!dev->mode_config.tv_left_margin_property) |
1705 | goto nomem; | |
f453ba04 DA |
1706 | |
1707 | dev->mode_config.tv_right_margin_property = | |
d9bc3c02 | 1708 | drm_property_create_range(dev, 0, "right margin", 0, 100); |
48aa1e74 IY |
1709 | if (!dev->mode_config.tv_right_margin_property) |
1710 | goto nomem; | |
f453ba04 DA |
1711 | |
1712 | dev->mode_config.tv_top_margin_property = | |
d9bc3c02 | 1713 | drm_property_create_range(dev, 0, "top margin", 0, 100); |
48aa1e74 IY |
1714 | if (!dev->mode_config.tv_top_margin_property) |
1715 | goto nomem; | |
f453ba04 DA |
1716 | |
1717 | dev->mode_config.tv_bottom_margin_property = | |
d9bc3c02 | 1718 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); |
48aa1e74 IY |
1719 | if (!dev->mode_config.tv_bottom_margin_property) |
1720 | goto nomem; | |
f453ba04 DA |
1721 | |
1722 | dev->mode_config.tv_mode_property = | |
1723 | drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
1724 | "mode", num_modes); | |
48aa1e74 IY |
1725 | if (!dev->mode_config.tv_mode_property) |
1726 | goto nomem; | |
1727 | ||
f453ba04 DA |
1728 | for (i = 0; i < num_modes; i++) |
1729 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, | |
1730 | i, modes[i]); | |
1731 | ||
b6b7902e | 1732 | dev->mode_config.tv_brightness_property = |
d9bc3c02 | 1733 | drm_property_create_range(dev, 0, "brightness", 0, 100); |
48aa1e74 IY |
1734 | if (!dev->mode_config.tv_brightness_property) |
1735 | goto nomem; | |
b6b7902e FJ |
1736 | |
1737 | dev->mode_config.tv_contrast_property = | |
d9bc3c02 | 1738 | drm_property_create_range(dev, 0, "contrast", 0, 100); |
48aa1e74 IY |
1739 | if (!dev->mode_config.tv_contrast_property) |
1740 | goto nomem; | |
b6b7902e FJ |
1741 | |
1742 | dev->mode_config.tv_flicker_reduction_property = | |
d9bc3c02 | 1743 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); |
48aa1e74 IY |
1744 | if (!dev->mode_config.tv_flicker_reduction_property) |
1745 | goto nomem; | |
b6b7902e | 1746 | |
a75f0236 | 1747 | dev->mode_config.tv_overscan_property = |
d9bc3c02 | 1748 | drm_property_create_range(dev, 0, "overscan", 0, 100); |
48aa1e74 IY |
1749 | if (!dev->mode_config.tv_overscan_property) |
1750 | goto nomem; | |
a75f0236 FJ |
1751 | |
1752 | dev->mode_config.tv_saturation_property = | |
d9bc3c02 | 1753 | drm_property_create_range(dev, 0, "saturation", 0, 100); |
48aa1e74 IY |
1754 | if (!dev->mode_config.tv_saturation_property) |
1755 | goto nomem; | |
a75f0236 FJ |
1756 | |
1757 | dev->mode_config.tv_hue_property = | |
d9bc3c02 | 1758 | drm_property_create_range(dev, 0, "hue", 0, 100); |
48aa1e74 IY |
1759 | if (!dev->mode_config.tv_hue_property) |
1760 | goto nomem; | |
a75f0236 | 1761 | |
f453ba04 | 1762 | return 0; |
48aa1e74 IY |
1763 | nomem: |
1764 | return -ENOMEM; | |
f453ba04 DA |
1765 | } |
1766 | EXPORT_SYMBOL(drm_mode_create_tv_properties); | |
1767 | ||
1768 | /** | |
1769 | * drm_mode_create_scaling_mode_property - create scaling mode property | |
1770 | * @dev: DRM device | |
1771 | * | |
1772 | * Called by a driver the first time it's needed, must be attached to desired | |
1773 | * connectors. | |
1774 | */ | |
1775 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) | |
1776 | { | |
1777 | struct drm_property *scaling_mode; | |
f453ba04 DA |
1778 | |
1779 | if (dev->mode_config.scaling_mode_property) | |
1780 | return 0; | |
1781 | ||
1782 | scaling_mode = | |
4a67d391 SH |
1783 | drm_property_create_enum(dev, 0, "scaling mode", |
1784 | drm_scaling_mode_enum_list, | |
f453ba04 | 1785 | ARRAY_SIZE(drm_scaling_mode_enum_list)); |
f453ba04 DA |
1786 | |
1787 | dev->mode_config.scaling_mode_property = scaling_mode; | |
1788 | ||
1789 | return 0; | |
1790 | } | |
1791 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); | |
1792 | ||
ff587e45 VK |
1793 | /** |
1794 | * drm_mode_create_aspect_ratio_property - create aspect ratio property | |
1795 | * @dev: DRM device | |
1796 | * | |
1797 | * Called by a driver the first time it's needed, must be attached to desired | |
1798 | * connectors. | |
1799 | * | |
1800 | * Returns: | |
1a498633 | 1801 | * Zero on success, negative errno on failure. |
ff587e45 VK |
1802 | */ |
1803 | int drm_mode_create_aspect_ratio_property(struct drm_device *dev) | |
1804 | { | |
1805 | if (dev->mode_config.aspect_ratio_property) | |
1806 | return 0; | |
1807 | ||
1808 | dev->mode_config.aspect_ratio_property = | |
1809 | drm_property_create_enum(dev, 0, "aspect ratio", | |
1810 | drm_aspect_ratio_enum_list, | |
1811 | ARRAY_SIZE(drm_aspect_ratio_enum_list)); | |
1812 | ||
1813 | if (dev->mode_config.aspect_ratio_property == NULL) | |
1814 | return -ENOMEM; | |
1815 | ||
1816 | return 0; | |
1817 | } | |
1818 | EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); | |
1819 | ||
884840aa JB |
1820 | /** |
1821 | * drm_mode_create_dirty_property - create dirty property | |
1822 | * @dev: DRM device | |
1823 | * | |
1824 | * Called by a driver the first time it's needed, must be attached to desired | |
1825 | * connectors. | |
1826 | */ | |
1827 | int drm_mode_create_dirty_info_property(struct drm_device *dev) | |
1828 | { | |
1829 | struct drm_property *dirty_info; | |
884840aa JB |
1830 | |
1831 | if (dev->mode_config.dirty_info_property) | |
1832 | return 0; | |
1833 | ||
1834 | dirty_info = | |
4a67d391 | 1835 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
884840aa | 1836 | "dirty", |
4a67d391 | 1837 | drm_dirty_info_enum_list, |
884840aa | 1838 | ARRAY_SIZE(drm_dirty_info_enum_list)); |
884840aa JB |
1839 | dev->mode_config.dirty_info_property = dirty_info; |
1840 | ||
1841 | return 0; | |
1842 | } | |
1843 | EXPORT_SYMBOL(drm_mode_create_dirty_info_property); | |
1844 | ||
5bb2bbf5 DA |
1845 | /** |
1846 | * drm_mode_create_suggested_offset_properties - create suggests offset properties | |
1847 | * @dev: DRM device | |
1848 | * | |
1849 | * Create the the suggested x/y offset property for connectors. | |
1850 | */ | |
1851 | int drm_mode_create_suggested_offset_properties(struct drm_device *dev) | |
1852 | { | |
1853 | if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property) | |
1854 | return 0; | |
1855 | ||
1856 | dev->mode_config.suggested_x_property = | |
1857 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff); | |
1858 | ||
1859 | dev->mode_config.suggested_y_property = | |
1860 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff); | |
1861 | ||
1862 | if (dev->mode_config.suggested_x_property == NULL || | |
1863 | dev->mode_config.suggested_y_property == NULL) | |
1864 | return -ENOMEM; | |
1865 | return 0; | |
1866 | } | |
1867 | EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties); | |
1868 | ||
f453ba04 DA |
1869 | /** |
1870 | * drm_mode_getresources - get graphics configuration | |
065a50ed DV |
1871 | * @dev: drm device for the ioctl |
1872 | * @data: data pointer for the ioctl | |
1873 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1874 | * |
f453ba04 DA |
1875 | * Construct a set of configuration description structures and return |
1876 | * them to the user, including CRTC, connector and framebuffer configuration. | |
1877 | * | |
1878 | * Called by the user via ioctl. | |
1879 | * | |
c8e32cc1 | 1880 | * Returns: |
1a498633 | 1881 | * Zero on success, negative errno on failure. |
f453ba04 DA |
1882 | */ |
1883 | int drm_mode_getresources(struct drm_device *dev, void *data, | |
1884 | struct drm_file *file_priv) | |
1885 | { | |
1886 | struct drm_mode_card_res *card_res = data; | |
1887 | struct list_head *lh; | |
1888 | struct drm_framebuffer *fb; | |
1889 | struct drm_connector *connector; | |
1890 | struct drm_crtc *crtc; | |
1891 | struct drm_encoder *encoder; | |
1892 | int ret = 0; | |
1893 | int connector_count = 0; | |
1894 | int crtc_count = 0; | |
1895 | int fb_count = 0; | |
1896 | int encoder_count = 0; | |
9c7060f7 | 1897 | int copied = 0; |
f453ba04 DA |
1898 | uint32_t __user *fb_id; |
1899 | uint32_t __user *crtc_id; | |
1900 | uint32_t __user *connector_id; | |
1901 | uint32_t __user *encoder_id; | |
f453ba04 | 1902 | |
fb3b06c8 DA |
1903 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1904 | return -EINVAL; | |
1905 | ||
f453ba04 | 1906 | |
4b096ac1 | 1907 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
1908 | /* |
1909 | * For the non-control nodes we need to limit the list of resources | |
1910 | * by IDs in the group list for this node | |
1911 | */ | |
1912 | list_for_each(lh, &file_priv->fbs) | |
1913 | fb_count++; | |
1914 | ||
4b096ac1 DV |
1915 | /* handle this in 4 parts */ |
1916 | /* FBs */ | |
1917 | if (card_res->count_fbs >= fb_count) { | |
1918 | copied = 0; | |
1919 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; | |
1920 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { | |
1921 | if (put_user(fb->base.id, fb_id + copied)) { | |
1922 | mutex_unlock(&file_priv->fbs_lock); | |
1923 | return -EFAULT; | |
1924 | } | |
1925 | copied++; | |
1926 | } | |
1927 | } | |
1928 | card_res->count_fbs = fb_count; | |
1929 | mutex_unlock(&file_priv->fbs_lock); | |
1930 | ||
fcf93f69 DV |
1931 | /* mode_config.mutex protects the connector list against e.g. DP MST |
1932 | * connector hot-adding. CRTC/Plane lists are invariant. */ | |
1933 | mutex_lock(&dev->mode_config.mutex); | |
9c7060f7 DV |
1934 | drm_for_each_crtc(crtc, dev) |
1935 | crtc_count++; | |
f453ba04 | 1936 | |
9c7060f7 DV |
1937 | drm_for_each_connector(connector, dev) |
1938 | connector_count++; | |
f453ba04 | 1939 | |
9c7060f7 DV |
1940 | drm_for_each_encoder(encoder, dev) |
1941 | encoder_count++; | |
f453ba04 DA |
1942 | |
1943 | card_res->max_height = dev->mode_config.max_height; | |
1944 | card_res->min_height = dev->mode_config.min_height; | |
1945 | card_res->max_width = dev->mode_config.max_width; | |
1946 | card_res->min_width = dev->mode_config.min_width; | |
1947 | ||
f453ba04 DA |
1948 | /* CRTCs */ |
1949 | if (card_res->count_crtcs >= crtc_count) { | |
1950 | copied = 0; | |
1951 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; | |
9c7060f7 | 1952 | drm_for_each_crtc(crtc, dev) { |
9c7060f7 DV |
1953 | if (put_user(crtc->base.id, crtc_id + copied)) { |
1954 | ret = -EFAULT; | |
1955 | goto out; | |
f453ba04 | 1956 | } |
9c7060f7 | 1957 | copied++; |
f453ba04 DA |
1958 | } |
1959 | } | |
1960 | card_res->count_crtcs = crtc_count; | |
1961 | ||
1962 | /* Encoders */ | |
1963 | if (card_res->count_encoders >= encoder_count) { | |
1964 | copied = 0; | |
1965 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; | |
9c7060f7 | 1966 | drm_for_each_encoder(encoder, dev) { |
9c7060f7 DV |
1967 | if (put_user(encoder->base.id, encoder_id + |
1968 | copied)) { | |
1969 | ret = -EFAULT; | |
1970 | goto out; | |
f453ba04 | 1971 | } |
9c7060f7 | 1972 | copied++; |
f453ba04 DA |
1973 | } |
1974 | } | |
1975 | card_res->count_encoders = encoder_count; | |
1976 | ||
1977 | /* Connectors */ | |
1978 | if (card_res->count_connectors >= connector_count) { | |
1979 | copied = 0; | |
1980 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; | |
9c7060f7 | 1981 | drm_for_each_connector(connector, dev) { |
9c7060f7 DV |
1982 | if (put_user(connector->base.id, |
1983 | connector_id + copied)) { | |
1984 | ret = -EFAULT; | |
1985 | goto out; | |
f453ba04 | 1986 | } |
9c7060f7 | 1987 | copied++; |
f453ba04 DA |
1988 | } |
1989 | } | |
1990 | card_res->count_connectors = connector_count; | |
1991 | ||
f453ba04 | 1992 | out: |
fcf93f69 | 1993 | mutex_unlock(&dev->mode_config.mutex); |
f453ba04 DA |
1994 | return ret; |
1995 | } | |
1996 | ||
1997 | /** | |
1998 | * drm_mode_getcrtc - get CRTC configuration | |
065a50ed DV |
1999 | * @dev: drm device for the ioctl |
2000 | * @data: data pointer for the ioctl | |
2001 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2002 | * |
f453ba04 DA |
2003 | * Construct a CRTC configuration structure to return to the user. |
2004 | * | |
2005 | * Called by the user via ioctl. | |
2006 | * | |
c8e32cc1 | 2007 | * Returns: |
1a498633 | 2008 | * Zero on success, negative errno on failure. |
f453ba04 DA |
2009 | */ |
2010 | int drm_mode_getcrtc(struct drm_device *dev, | |
2011 | void *data, struct drm_file *file_priv) | |
2012 | { | |
2013 | struct drm_mode_crtc *crtc_resp = data; | |
2014 | struct drm_crtc *crtc; | |
f453ba04 | 2015 | |
fb3b06c8 DA |
2016 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2017 | return -EINVAL; | |
2018 | ||
a2b34e22 | 2019 | crtc = drm_crtc_find(dev, crtc_resp->crtc_id); |
fcf93f69 DV |
2020 | if (!crtc) |
2021 | return -ENOENT; | |
f453ba04 | 2022 | |
fcf93f69 | 2023 | drm_modeset_lock_crtc(crtc, crtc->primary); |
f453ba04 | 2024 | crtc_resp->gamma_size = crtc->gamma_size; |
f4510a27 MR |
2025 | if (crtc->primary->fb) |
2026 | crtc_resp->fb_id = crtc->primary->fb->base.id; | |
f453ba04 DA |
2027 | else |
2028 | crtc_resp->fb_id = 0; | |
2029 | ||
31c946e8 DV |
2030 | if (crtc->state) { |
2031 | crtc_resp->x = crtc->primary->state->src_x >> 16; | |
2032 | crtc_resp->y = crtc->primary->state->src_y >> 16; | |
2033 | if (crtc->state->enable) { | |
934a8a89 | 2034 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode); |
31c946e8 | 2035 | crtc_resp->mode_valid = 1; |
f453ba04 | 2036 | |
31c946e8 DV |
2037 | } else { |
2038 | crtc_resp->mode_valid = 0; | |
2039 | } | |
f453ba04 | 2040 | } else { |
31c946e8 DV |
2041 | crtc_resp->x = crtc->x; |
2042 | crtc_resp->y = crtc->y; | |
2043 | if (crtc->enabled) { | |
934a8a89 | 2044 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode); |
31c946e8 DV |
2045 | crtc_resp->mode_valid = 1; |
2046 | ||
2047 | } else { | |
2048 | crtc_resp->mode_valid = 0; | |
2049 | } | |
f453ba04 | 2050 | } |
fcf93f69 | 2051 | drm_modeset_unlock_crtc(crtc); |
f453ba04 | 2052 | |
baf698b0 | 2053 | return 0; |
f453ba04 DA |
2054 | } |
2055 | ||
61d8e328 DL |
2056 | static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, |
2057 | const struct drm_file *file_priv) | |
2058 | { | |
2059 | /* | |
2060 | * If user-space hasn't configured the driver to expose the stereo 3D | |
2061 | * modes, don't expose them. | |
2062 | */ | |
2063 | if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) | |
2064 | return false; | |
2065 | ||
2066 | return true; | |
2067 | } | |
2068 | ||
abd69c55 DV |
2069 | static struct drm_encoder *drm_connector_get_encoder(struct drm_connector *connector) |
2070 | { | |
2071 | /* For atomic drivers only state objects are synchronously updated and | |
2072 | * protected by modeset locks, so check those first. */ | |
2073 | if (connector->state) | |
2074 | return connector->state->best_encoder; | |
2075 | return connector->encoder; | |
2076 | } | |
2077 | ||
95cbf110 | 2078 | /* helper for getconnector and getproperties ioctls */ |
88a48e29 | 2079 | static int get_properties(struct drm_mode_object *obj, bool atomic, |
95cbf110 RC |
2080 | uint32_t __user *prop_ptr, uint64_t __user *prop_values, |
2081 | uint32_t *arg_count_props) | |
2082 | { | |
88a48e29 RC |
2083 | int props_count; |
2084 | int i, ret, copied; | |
2085 | ||
2086 | props_count = obj->properties->count; | |
2087 | if (!atomic) | |
2088 | props_count -= obj->properties->atomic_count; | |
95cbf110 RC |
2089 | |
2090 | if ((*arg_count_props >= props_count) && props_count) { | |
88a48e29 | 2091 | for (i = 0, copied = 0; copied < props_count; i++) { |
95cbf110 RC |
2092 | struct drm_property *prop = obj->properties->properties[i]; |
2093 | uint64_t val; | |
2094 | ||
88a48e29 RC |
2095 | if ((prop->flags & DRM_MODE_PROP_ATOMIC) && !atomic) |
2096 | continue; | |
2097 | ||
95cbf110 RC |
2098 | ret = drm_object_property_get_value(obj, prop, &val); |
2099 | if (ret) | |
2100 | return ret; | |
2101 | ||
2102 | if (put_user(prop->base.id, prop_ptr + copied)) | |
2103 | return -EFAULT; | |
2104 | ||
2105 | if (put_user(val, prop_values + copied)) | |
2106 | return -EFAULT; | |
2107 | ||
2108 | copied++; | |
2109 | } | |
2110 | } | |
2111 | *arg_count_props = props_count; | |
2112 | ||
2113 | return 0; | |
2114 | } | |
2115 | ||
f453ba04 DA |
2116 | /** |
2117 | * drm_mode_getconnector - get connector configuration | |
065a50ed DV |
2118 | * @dev: drm device for the ioctl |
2119 | * @data: data pointer for the ioctl | |
2120 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2121 | * |
f453ba04 DA |
2122 | * Construct a connector configuration structure to return to the user. |
2123 | * | |
2124 | * Called by the user via ioctl. | |
2125 | * | |
c8e32cc1 | 2126 | * Returns: |
1a498633 | 2127 | * Zero on success, negative errno on failure. |
f453ba04 DA |
2128 | */ |
2129 | int drm_mode_getconnector(struct drm_device *dev, void *data, | |
2130 | struct drm_file *file_priv) | |
2131 | { | |
2132 | struct drm_mode_get_connector *out_resp = data; | |
f453ba04 | 2133 | struct drm_connector *connector; |
abd69c55 | 2134 | struct drm_encoder *encoder; |
f453ba04 DA |
2135 | struct drm_display_mode *mode; |
2136 | int mode_count = 0; | |
f453ba04 DA |
2137 | int encoders_count = 0; |
2138 | int ret = 0; | |
2139 | int copied = 0; | |
2140 | int i; | |
2141 | struct drm_mode_modeinfo u_mode; | |
2142 | struct drm_mode_modeinfo __user *mode_ptr; | |
f453ba04 DA |
2143 | uint32_t __user *encoder_ptr; |
2144 | ||
fb3b06c8 DA |
2145 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2146 | return -EINVAL; | |
2147 | ||
f453ba04 DA |
2148 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
2149 | ||
7b24056b | 2150 | mutex_lock(&dev->mode_config.mutex); |
f453ba04 | 2151 | |
b164d31f | 2152 | connector = drm_connector_lookup(dev, out_resp->connector_id); |
a2b34e22 | 2153 | if (!connector) { |
f27657f2 | 2154 | ret = -ENOENT; |
04bdf441 | 2155 | goto out_unlock; |
f453ba04 | 2156 | } |
f453ba04 | 2157 | |
01073b08 TR |
2158 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) |
2159 | if (connector->encoder_ids[i] != 0) | |
f453ba04 | 2160 | encoders_count++; |
f453ba04 DA |
2161 | |
2162 | if (out_resp->count_modes == 0) { | |
2163 | connector->funcs->fill_modes(connector, | |
2164 | dev->mode_config.max_width, | |
2165 | dev->mode_config.max_height); | |
2166 | } | |
2167 | ||
2168 | /* delayed so we get modes regardless of pre-fill_modes state */ | |
2169 | list_for_each_entry(mode, &connector->modes, head) | |
61d8e328 DL |
2170 | if (drm_mode_expose_to_userspace(mode, file_priv)) |
2171 | mode_count++; | |
f453ba04 DA |
2172 | |
2173 | out_resp->connector_id = connector->base.id; | |
2174 | out_resp->connector_type = connector->connector_type; | |
2175 | out_resp->connector_type_id = connector->connector_type_id; | |
2176 | out_resp->mm_width = connector->display_info.width_mm; | |
2177 | out_resp->mm_height = connector->display_info.height_mm; | |
2178 | out_resp->subpixel = connector->display_info.subpixel_order; | |
2179 | out_resp->connection = connector->status; | |
2caa80e7 DV |
2180 | |
2181 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); | |
abd69c55 DV |
2182 | encoder = drm_connector_get_encoder(connector); |
2183 | if (encoder) | |
2184 | out_resp->encoder_id = encoder->base.id; | |
f453ba04 DA |
2185 | else |
2186 | out_resp->encoder_id = 0; | |
2187 | ||
2188 | /* | |
2189 | * This ioctl is called twice, once to determine how much space is | |
2190 | * needed, and the 2nd time to fill it. | |
2191 | */ | |
2192 | if ((out_resp->count_modes >= mode_count) && mode_count) { | |
2193 | copied = 0; | |
81f6c7f8 | 2194 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; |
f453ba04 | 2195 | list_for_each_entry(mode, &connector->modes, head) { |
61d8e328 DL |
2196 | if (!drm_mode_expose_to_userspace(mode, file_priv)) |
2197 | continue; | |
2198 | ||
934a8a89 | 2199 | drm_mode_convert_to_umode(&u_mode, mode); |
f453ba04 DA |
2200 | if (copy_to_user(mode_ptr + copied, |
2201 | &u_mode, sizeof(u_mode))) { | |
2202 | ret = -EFAULT; | |
2203 | goto out; | |
2204 | } | |
2205 | copied++; | |
2206 | } | |
2207 | } | |
2208 | out_resp->count_modes = mode_count; | |
2209 | ||
88a48e29 | 2210 | ret = get_properties(&connector->base, file_priv->atomic, |
95cbf110 RC |
2211 | (uint32_t __user *)(unsigned long)(out_resp->props_ptr), |
2212 | (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr), | |
2213 | &out_resp->count_props); | |
2214 | if (ret) | |
2215 | goto out; | |
f453ba04 DA |
2216 | |
2217 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { | |
2218 | copied = 0; | |
81f6c7f8 | 2219 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); |
f453ba04 DA |
2220 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
2221 | if (connector->encoder_ids[i] != 0) { | |
2222 | if (put_user(connector->encoder_ids[i], | |
2223 | encoder_ptr + copied)) { | |
2224 | ret = -EFAULT; | |
2225 | goto out; | |
2226 | } | |
2227 | copied++; | |
2228 | } | |
2229 | } | |
2230 | } | |
2231 | out_resp->count_encoders = encoders_count; | |
2232 | ||
2233 | out: | |
ccfc0865 | 2234 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
04bdf441 | 2235 | |
b164d31f | 2236 | drm_connector_unreference(connector); |
04bdf441 | 2237 | out_unlock: |
7b24056b DV |
2238 | mutex_unlock(&dev->mode_config.mutex); |
2239 | ||
f453ba04 DA |
2240 | return ret; |
2241 | } | |
2242 | ||
abd69c55 DV |
2243 | static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder) |
2244 | { | |
2245 | struct drm_connector *connector; | |
2246 | struct drm_device *dev = encoder->dev; | |
2247 | bool uses_atomic = false; | |
2248 | ||
2249 | /* For atomic drivers only state objects are synchronously updated and | |
2250 | * protected by modeset locks, so check those first. */ | |
6295d607 | 2251 | drm_for_each_connector(connector, dev) { |
abd69c55 DV |
2252 | if (!connector->state) |
2253 | continue; | |
2254 | ||
2255 | uses_atomic = true; | |
2256 | ||
2257 | if (connector->state->best_encoder != encoder) | |
2258 | continue; | |
2259 | ||
2260 | return connector->state->crtc; | |
2261 | } | |
2262 | ||
2263 | /* Don't return stale data (e.g. pending async disable). */ | |
2264 | if (uses_atomic) | |
2265 | return NULL; | |
2266 | ||
2267 | return encoder->crtc; | |
2268 | } | |
2269 | ||
c8e32cc1 DV |
2270 | /** |
2271 | * drm_mode_getencoder - get encoder configuration | |
2272 | * @dev: drm device for the ioctl | |
2273 | * @data: data pointer for the ioctl | |
2274 | * @file_priv: drm file for the ioctl call | |
2275 | * | |
2276 | * Construct a encoder configuration structure to return to the user. | |
2277 | * | |
2278 | * Called by the user via ioctl. | |
2279 | * | |
2280 | * Returns: | |
1a498633 | 2281 | * Zero on success, negative errno on failure. |
c8e32cc1 | 2282 | */ |
f453ba04 DA |
2283 | int drm_mode_getencoder(struct drm_device *dev, void *data, |
2284 | struct drm_file *file_priv) | |
2285 | { | |
2286 | struct drm_mode_get_encoder *enc_resp = data; | |
f453ba04 | 2287 | struct drm_encoder *encoder; |
abd69c55 | 2288 | struct drm_crtc *crtc; |
f453ba04 | 2289 | |
fb3b06c8 DA |
2290 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2291 | return -EINVAL; | |
2292 | ||
a2b34e22 | 2293 | encoder = drm_encoder_find(dev, enc_resp->encoder_id); |
fcf93f69 DV |
2294 | if (!encoder) |
2295 | return -ENOENT; | |
f453ba04 | 2296 | |
fcf93f69 | 2297 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
abd69c55 DV |
2298 | crtc = drm_encoder_get_crtc(encoder); |
2299 | if (crtc) | |
2300 | enc_resp->crtc_id = crtc->base.id; | |
f453ba04 DA |
2301 | else |
2302 | enc_resp->crtc_id = 0; | |
fcf93f69 DV |
2303 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
2304 | ||
f453ba04 DA |
2305 | enc_resp->encoder_type = encoder->encoder_type; |
2306 | enc_resp->encoder_id = encoder->base.id; | |
2307 | enc_resp->possible_crtcs = encoder->possible_crtcs; | |
2308 | enc_resp->possible_clones = encoder->possible_clones; | |
2309 | ||
baf698b0 | 2310 | return 0; |
f453ba04 DA |
2311 | } |
2312 | ||
8cf5c917 | 2313 | /** |
c8e32cc1 | 2314 | * drm_mode_getplane_res - enumerate all plane resources |
8cf5c917 JB |
2315 | * @dev: DRM device |
2316 | * @data: ioctl data | |
2317 | * @file_priv: DRM file info | |
2318 | * | |
c8e32cc1 DV |
2319 | * Construct a list of plane ids to return to the user. |
2320 | * | |
2321 | * Called by the user via ioctl. | |
2322 | * | |
2323 | * Returns: | |
1a498633 | 2324 | * Zero on success, negative errno on failure. |
8cf5c917 JB |
2325 | */ |
2326 | int drm_mode_getplane_res(struct drm_device *dev, void *data, | |
c8e32cc1 | 2327 | struct drm_file *file_priv) |
8cf5c917 JB |
2328 | { |
2329 | struct drm_mode_get_plane_res *plane_resp = data; | |
2330 | struct drm_mode_config *config; | |
2331 | struct drm_plane *plane; | |
2332 | uint32_t __user *plane_ptr; | |
fcf93f69 | 2333 | int copied = 0; |
681e7ec7 | 2334 | unsigned num_planes; |
8cf5c917 JB |
2335 | |
2336 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2337 | return -EINVAL; | |
2338 | ||
8cf5c917 JB |
2339 | config = &dev->mode_config; |
2340 | ||
681e7ec7 MR |
2341 | if (file_priv->universal_planes) |
2342 | num_planes = config->num_total_plane; | |
2343 | else | |
2344 | num_planes = config->num_overlay_plane; | |
2345 | ||
8cf5c917 JB |
2346 | /* |
2347 | * This ioctl is called twice, once to determine how much space is | |
2348 | * needed, and the 2nd time to fill it. | |
2349 | */ | |
681e7ec7 MR |
2350 | if (num_planes && |
2351 | (plane_resp->count_planes >= num_planes)) { | |
81f6c7f8 | 2352 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
8cf5c917 | 2353 | |
fcf93f69 | 2354 | /* Plane lists are invariant, no locking needed. */ |
e4f62546 | 2355 | drm_for_each_plane(plane, dev) { |
681e7ec7 MR |
2356 | /* |
2357 | * Unless userspace set the 'universal planes' | |
2358 | * capability bit, only advertise overlays. | |
2359 | */ | |
2360 | if (plane->type != DRM_PLANE_TYPE_OVERLAY && | |
2361 | !file_priv->universal_planes) | |
e27dde3e MR |
2362 | continue; |
2363 | ||
fcf93f69 DV |
2364 | if (put_user(plane->base.id, plane_ptr + copied)) |
2365 | return -EFAULT; | |
8cf5c917 JB |
2366 | copied++; |
2367 | } | |
2368 | } | |
681e7ec7 | 2369 | plane_resp->count_planes = num_planes; |
8cf5c917 | 2370 | |
fcf93f69 | 2371 | return 0; |
8cf5c917 JB |
2372 | } |
2373 | ||
2374 | /** | |
c8e32cc1 | 2375 | * drm_mode_getplane - get plane configuration |
8cf5c917 JB |
2376 | * @dev: DRM device |
2377 | * @data: ioctl data | |
2378 | * @file_priv: DRM file info | |
2379 | * | |
c8e32cc1 DV |
2380 | * Construct a plane configuration structure to return to the user. |
2381 | * | |
2382 | * Called by the user via ioctl. | |
2383 | * | |
2384 | * Returns: | |
1a498633 | 2385 | * Zero on success, negative errno on failure. |
8cf5c917 JB |
2386 | */ |
2387 | int drm_mode_getplane(struct drm_device *dev, void *data, | |
c8e32cc1 | 2388 | struct drm_file *file_priv) |
8cf5c917 JB |
2389 | { |
2390 | struct drm_mode_get_plane *plane_resp = data; | |
8cf5c917 JB |
2391 | struct drm_plane *plane; |
2392 | uint32_t __user *format_ptr; | |
8cf5c917 JB |
2393 | |
2394 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2395 | return -EINVAL; | |
2396 | ||
a2b34e22 | 2397 | plane = drm_plane_find(dev, plane_resp->plane_id); |
fcf93f69 DV |
2398 | if (!plane) |
2399 | return -ENOENT; | |
8cf5c917 | 2400 | |
fcf93f69 | 2401 | drm_modeset_lock(&plane->mutex, NULL); |
8cf5c917 JB |
2402 | if (plane->crtc) |
2403 | plane_resp->crtc_id = plane->crtc->base.id; | |
2404 | else | |
2405 | plane_resp->crtc_id = 0; | |
2406 | ||
2407 | if (plane->fb) | |
2408 | plane_resp->fb_id = plane->fb->base.id; | |
2409 | else | |
2410 | plane_resp->fb_id = 0; | |
fcf93f69 | 2411 | drm_modeset_unlock(&plane->mutex); |
8cf5c917 JB |
2412 | |
2413 | plane_resp->plane_id = plane->base.id; | |
2414 | plane_resp->possible_crtcs = plane->possible_crtcs; | |
778ad903 | 2415 | plane_resp->gamma_size = 0; |
8cf5c917 JB |
2416 | |
2417 | /* | |
2418 | * This ioctl is called twice, once to determine how much space is | |
2419 | * needed, and the 2nd time to fill it. | |
2420 | */ | |
2421 | if (plane->format_count && | |
2422 | (plane_resp->count_format_types >= plane->format_count)) { | |
81f6c7f8 | 2423 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
8cf5c917 JB |
2424 | if (copy_to_user(format_ptr, |
2425 | plane->format_types, | |
2426 | sizeof(uint32_t) * plane->format_count)) { | |
fcf93f69 | 2427 | return -EFAULT; |
8cf5c917 JB |
2428 | } |
2429 | } | |
2430 | plane_resp->count_format_types = plane->format_count; | |
2431 | ||
baf698b0 | 2432 | return 0; |
8cf5c917 JB |
2433 | } |
2434 | ||
ead8610d LP |
2435 | /** |
2436 | * drm_plane_check_pixel_format - Check if the plane supports the pixel format | |
2437 | * @plane: plane to check for format support | |
2438 | * @format: the pixel format | |
2439 | * | |
2440 | * Returns: | |
2441 | * Zero of @plane has @format in its list of supported pixel formats, -EINVAL | |
2442 | * otherwise. | |
2443 | */ | |
2444 | int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format) | |
2445 | { | |
2446 | unsigned int i; | |
2447 | ||
2448 | for (i = 0; i < plane->format_count; i++) { | |
2449 | if (format == plane->format_types[i]) | |
2450 | return 0; | |
2451 | } | |
2452 | ||
2453 | return -EINVAL; | |
2454 | } | |
2455 | ||
ce8d9ecc VS |
2456 | static int check_src_coords(uint32_t src_x, uint32_t src_y, |
2457 | uint32_t src_w, uint32_t src_h, | |
2458 | const struct drm_framebuffer *fb) | |
2459 | { | |
2460 | unsigned int fb_width, fb_height; | |
2461 | ||
2462 | fb_width = fb->width << 16; | |
2463 | fb_height = fb->height << 16; | |
2464 | ||
2465 | /* Make sure source coordinates are inside the fb. */ | |
2466 | if (src_w > fb_width || | |
2467 | src_x > fb_width - src_w || | |
2468 | src_h > fb_height || | |
2469 | src_y > fb_height - src_h) { | |
2470 | DRM_DEBUG_KMS("Invalid source coordinates " | |
2471 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", | |
2472 | src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, | |
2473 | src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, | |
2474 | src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, | |
2475 | src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); | |
2476 | return -ENOSPC; | |
2477 | } | |
2478 | ||
2479 | return 0; | |
2480 | } | |
2481 | ||
b36552b3 MR |
2482 | /* |
2483 | * setplane_internal - setplane handler for internal callers | |
8cf5c917 | 2484 | * |
b36552b3 MR |
2485 | * Note that we assume an extra reference has already been taken on fb. If the |
2486 | * update fails, this reference will be dropped before return; if it succeeds, | |
2487 | * the previous framebuffer (if any) will be unreferenced instead. | |
c8e32cc1 | 2488 | * |
b36552b3 | 2489 | * src_{x,y,w,h} are provided in 16.16 fixed point format |
8cf5c917 | 2490 | */ |
f2b50c11 DV |
2491 | static int __setplane_internal(struct drm_plane *plane, |
2492 | struct drm_crtc *crtc, | |
2493 | struct drm_framebuffer *fb, | |
2494 | int32_t crtc_x, int32_t crtc_y, | |
2495 | uint32_t crtc_w, uint32_t crtc_h, | |
2496 | /* src_{x,y,w,h} values are 16.16 fixed point */ | |
2497 | uint32_t src_x, uint32_t src_y, | |
2498 | uint32_t src_w, uint32_t src_h) | |
8cf5c917 | 2499 | { |
8cf5c917 JB |
2500 | int ret = 0; |
2501 | ||
8cf5c917 | 2502 | /* No fb means shut it down */ |
b36552b3 | 2503 | if (!fb) { |
3d30a59b | 2504 | plane->old_fb = plane->fb; |
731cce48 DV |
2505 | ret = plane->funcs->disable_plane(plane); |
2506 | if (!ret) { | |
2507 | plane->crtc = NULL; | |
2508 | plane->fb = NULL; | |
2509 | } else { | |
3d30a59b | 2510 | plane->old_fb = NULL; |
731cce48 | 2511 | } |
8cf5c917 JB |
2512 | goto out; |
2513 | } | |
2514 | ||
7f994f3f MR |
2515 | /* Check whether this plane is usable on this CRTC */ |
2516 | if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { | |
2517 | DRM_DEBUG_KMS("Invalid crtc for plane\n"); | |
2518 | ret = -EINVAL; | |
2519 | goto out; | |
2520 | } | |
2521 | ||
62443be6 | 2522 | /* Check whether this plane supports the fb pixel format. */ |
ead8610d LP |
2523 | ret = drm_plane_check_pixel_format(plane, fb->pixel_format); |
2524 | if (ret) { | |
6ba6d03e VS |
2525 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
2526 | drm_get_format_name(fb->pixel_format)); | |
62443be6 VS |
2527 | goto out; |
2528 | } | |
2529 | ||
3968be94 MR |
2530 | /* Give drivers some help against integer overflows */ |
2531 | if (crtc_w > INT_MAX || | |
2532 | crtc_x > INT_MAX - (int32_t) crtc_w || | |
2533 | crtc_h > INT_MAX || | |
2534 | crtc_y > INT_MAX - (int32_t) crtc_h) { | |
2535 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", | |
2536 | crtc_w, crtc_h, crtc_x, crtc_y); | |
c390eed0 VS |
2537 | ret = -ERANGE; |
2538 | goto out; | |
3968be94 MR |
2539 | } |
2540 | ||
ce8d9ecc VS |
2541 | ret = check_src_coords(src_x, src_y, src_w, src_h, fb); |
2542 | if (ret) | |
42ef8789 | 2543 | goto out; |
42ef8789 | 2544 | |
3d30a59b | 2545 | plane->old_fb = plane->fb; |
8cf5c917 | 2546 | ret = plane->funcs->update_plane(plane, crtc, fb, |
b36552b3 MR |
2547 | crtc_x, crtc_y, crtc_w, crtc_h, |
2548 | src_x, src_y, src_w, src_h); | |
8cf5c917 JB |
2549 | if (!ret) { |
2550 | plane->crtc = crtc; | |
2551 | plane->fb = fb; | |
35f8badc | 2552 | fb = NULL; |
0fe27f06 | 2553 | } else { |
3d30a59b | 2554 | plane->old_fb = NULL; |
8cf5c917 JB |
2555 | } |
2556 | ||
2557 | out: | |
6c2a7532 DV |
2558 | if (fb) |
2559 | drm_framebuffer_unreference(fb); | |
3d30a59b DV |
2560 | if (plane->old_fb) |
2561 | drm_framebuffer_unreference(plane->old_fb); | |
2562 | plane->old_fb = NULL; | |
8cf5c917 JB |
2563 | |
2564 | return ret; | |
f2b50c11 | 2565 | } |
b36552b3 | 2566 | |
f2b50c11 DV |
2567 | static int setplane_internal(struct drm_plane *plane, |
2568 | struct drm_crtc *crtc, | |
2569 | struct drm_framebuffer *fb, | |
2570 | int32_t crtc_x, int32_t crtc_y, | |
2571 | uint32_t crtc_w, uint32_t crtc_h, | |
2572 | /* src_{x,y,w,h} values are 16.16 fixed point */ | |
2573 | uint32_t src_x, uint32_t src_y, | |
2574 | uint32_t src_w, uint32_t src_h) | |
2575 | { | |
2576 | int ret; | |
2577 | ||
2578 | drm_modeset_lock_all(plane->dev); | |
2579 | ret = __setplane_internal(plane, crtc, fb, | |
2580 | crtc_x, crtc_y, crtc_w, crtc_h, | |
2581 | src_x, src_y, src_w, src_h); | |
2582 | drm_modeset_unlock_all(plane->dev); | |
2583 | ||
2584 | return ret; | |
b36552b3 MR |
2585 | } |
2586 | ||
2587 | /** | |
2588 | * drm_mode_setplane - configure a plane's configuration | |
2589 | * @dev: DRM device | |
2590 | * @data: ioctl data* | |
2591 | * @file_priv: DRM file info | |
2592 | * | |
2593 | * Set plane configuration, including placement, fb, scaling, and other factors. | |
2594 | * Or pass a NULL fb to disable (planes may be disabled without providing a | |
2595 | * valid crtc). | |
2596 | * | |
2597 | * Returns: | |
1a498633 | 2598 | * Zero on success, negative errno on failure. |
b36552b3 MR |
2599 | */ |
2600 | int drm_mode_setplane(struct drm_device *dev, void *data, | |
2601 | struct drm_file *file_priv) | |
2602 | { | |
2603 | struct drm_mode_set_plane *plane_req = data; | |
b36552b3 MR |
2604 | struct drm_plane *plane; |
2605 | struct drm_crtc *crtc = NULL; | |
2606 | struct drm_framebuffer *fb = NULL; | |
2607 | ||
2608 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2609 | return -EINVAL; | |
2610 | ||
b36552b3 MR |
2611 | /* |
2612 | * First, find the plane, crtc, and fb objects. If not available, | |
2613 | * we don't bother to call the driver. | |
2614 | */ | |
933f622f RC |
2615 | plane = drm_plane_find(dev, plane_req->plane_id); |
2616 | if (!plane) { | |
b36552b3 MR |
2617 | DRM_DEBUG_KMS("Unknown plane ID %d\n", |
2618 | plane_req->plane_id); | |
2619 | return -ENOENT; | |
2620 | } | |
b36552b3 MR |
2621 | |
2622 | if (plane_req->fb_id) { | |
2623 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); | |
2624 | if (!fb) { | |
2625 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", | |
2626 | plane_req->fb_id); | |
2627 | return -ENOENT; | |
2628 | } | |
2629 | ||
933f622f RC |
2630 | crtc = drm_crtc_find(dev, plane_req->crtc_id); |
2631 | if (!crtc) { | |
b36552b3 MR |
2632 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", |
2633 | plane_req->crtc_id); | |
2634 | return -ENOENT; | |
2635 | } | |
b36552b3 MR |
2636 | } |
2637 | ||
161d0dc1 MR |
2638 | /* |
2639 | * setplane_internal will take care of deref'ing either the old or new | |
2640 | * framebuffer depending on success. | |
2641 | */ | |
17cfd91f | 2642 | return setplane_internal(plane, crtc, fb, |
b36552b3 MR |
2643 | plane_req->crtc_x, plane_req->crtc_y, |
2644 | plane_req->crtc_w, plane_req->crtc_h, | |
2645 | plane_req->src_x, plane_req->src_y, | |
2646 | plane_req->src_w, plane_req->src_h); | |
8cf5c917 JB |
2647 | } |
2648 | ||
2d13b679 DV |
2649 | /** |
2650 | * drm_mode_set_config_internal - helper to call ->set_config | |
2651 | * @set: modeset config to set | |
2652 | * | |
2653 | * This is a little helper to wrap internal calls to the ->set_config driver | |
2654 | * interface. The only thing it adds is correct refcounting dance. | |
4dfd909f | 2655 | * |
c8e32cc1 | 2656 | * Returns: |
1a498633 | 2657 | * Zero on success, negative errno on failure. |
2d13b679 DV |
2658 | */ |
2659 | int drm_mode_set_config_internal(struct drm_mode_set *set) | |
2660 | { | |
2661 | struct drm_crtc *crtc = set->crtc; | |
5cef29aa DV |
2662 | struct drm_framebuffer *fb; |
2663 | struct drm_crtc *tmp; | |
b0d12325 DV |
2664 | int ret; |
2665 | ||
5cef29aa DV |
2666 | /* |
2667 | * NOTE: ->set_config can also disable other crtcs (if we steal all | |
2668 | * connectors from it), hence we need to refcount the fbs across all | |
2669 | * crtcs. Atomic modeset will have saner semantics ... | |
2670 | */ | |
e4f62546 | 2671 | drm_for_each_crtc(tmp, crtc->dev) |
3d30a59b | 2672 | tmp->primary->old_fb = tmp->primary->fb; |
5cef29aa | 2673 | |
b0d12325 | 2674 | fb = set->fb; |
2d13b679 | 2675 | |
b0d12325 DV |
2676 | ret = crtc->funcs->set_config(set); |
2677 | if (ret == 0) { | |
e13161af | 2678 | crtc->primary->crtc = crtc; |
0fe27f06 | 2679 | crtc->primary->fb = fb; |
5cef29aa | 2680 | } |
cc85e121 | 2681 | |
e4f62546 | 2682 | drm_for_each_crtc(tmp, crtc->dev) { |
f4510a27 MR |
2683 | if (tmp->primary->fb) |
2684 | drm_framebuffer_reference(tmp->primary->fb); | |
3d30a59b DV |
2685 | if (tmp->primary->old_fb) |
2686 | drm_framebuffer_unreference(tmp->primary->old_fb); | |
2687 | tmp->primary->old_fb = NULL; | |
b0d12325 DV |
2688 | } |
2689 | ||
2690 | return ret; | |
2d13b679 DV |
2691 | } |
2692 | EXPORT_SYMBOL(drm_mode_set_config_internal); | |
2693 | ||
ecb7e16b GP |
2694 | /** |
2695 | * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode | |
2696 | * @mode: mode to query | |
2697 | * @hdisplay: hdisplay value to fill in | |
2698 | * @vdisplay: vdisplay value to fill in | |
2699 | * | |
2700 | * The vdisplay value will be doubled if the specified mode is a stereo mode of | |
2701 | * the appropriate layout. | |
2702 | */ | |
2703 | void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, | |
2704 | int *hdisplay, int *vdisplay) | |
2705 | { | |
2706 | struct drm_display_mode adjusted; | |
2707 | ||
2708 | drm_mode_copy(&adjusted, mode); | |
2709 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); | |
2710 | *hdisplay = adjusted.crtc_hdisplay; | |
2711 | *vdisplay = adjusted.crtc_vdisplay; | |
2712 | } | |
2713 | EXPORT_SYMBOL(drm_crtc_get_hv_timing); | |
2714 | ||
af93629d MR |
2715 | /** |
2716 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the | |
2717 | * CRTC viewport | |
2718 | * @crtc: CRTC that framebuffer will be displayed on | |
2719 | * @x: x panning | |
2720 | * @y: y panning | |
2721 | * @mode: mode that framebuffer will be displayed under | |
2722 | * @fb: framebuffer to check size of | |
c11e9283 | 2723 | */ |
af93629d MR |
2724 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
2725 | int x, int y, | |
2726 | const struct drm_display_mode *mode, | |
2727 | const struct drm_framebuffer *fb) | |
c11e9283 DL |
2728 | |
2729 | { | |
2730 | int hdisplay, vdisplay; | |
2731 | ||
ecb7e16b | 2732 | drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); |
a0c1bbb0 | 2733 | |
33e0be63 VS |
2734 | if (crtc->state && |
2735 | crtc->primary->state->rotation & (BIT(DRM_ROTATE_90) | | |
2736 | BIT(DRM_ROTATE_270))) | |
c11e9283 DL |
2737 | swap(hdisplay, vdisplay); |
2738 | ||
ce8d9ecc VS |
2739 | return check_src_coords(x << 16, y << 16, |
2740 | hdisplay << 16, vdisplay << 16, fb); | |
c11e9283 | 2741 | } |
af93629d | 2742 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
c11e9283 | 2743 | |
f453ba04 DA |
2744 | /** |
2745 | * drm_mode_setcrtc - set CRTC configuration | |
065a50ed DV |
2746 | * @dev: drm device for the ioctl |
2747 | * @data: data pointer for the ioctl | |
2748 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2749 | * |
f453ba04 DA |
2750 | * Build a new CRTC configuration based on user request. |
2751 | * | |
2752 | * Called by the user via ioctl. | |
2753 | * | |
c8e32cc1 | 2754 | * Returns: |
1a498633 | 2755 | * Zero on success, negative errno on failure. |
f453ba04 DA |
2756 | */ |
2757 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
2758 | struct drm_file *file_priv) | |
2759 | { | |
2760 | struct drm_mode_config *config = &dev->mode_config; | |
2761 | struct drm_mode_crtc *crtc_req = data; | |
6653cc8d | 2762 | struct drm_crtc *crtc; |
f453ba04 DA |
2763 | struct drm_connector **connector_set = NULL, *connector; |
2764 | struct drm_framebuffer *fb = NULL; | |
2765 | struct drm_display_mode *mode = NULL; | |
2766 | struct drm_mode_set set; | |
2767 | uint32_t __user *set_connectors_ptr; | |
4a1b0714 | 2768 | int ret; |
f453ba04 DA |
2769 | int i; |
2770 | ||
fb3b06c8 DA |
2771 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2772 | return -EINVAL; | |
2773 | ||
01447e9f ZJ |
2774 | /* |
2775 | * Universal plane src offsets are only 16.16, prevent havoc for | |
2776 | * drivers using universal plane code internally. | |
2777 | */ | |
2778 | if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000) | |
1d97e915 VS |
2779 | return -ERANGE; |
2780 | ||
84849903 | 2781 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
2782 | crtc = drm_crtc_find(dev, crtc_req->crtc_id); |
2783 | if (!crtc) { | |
58367ed6 | 2784 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
f27657f2 | 2785 | ret = -ENOENT; |
f453ba04 DA |
2786 | goto out; |
2787 | } | |
fa3ab4c2 | 2788 | DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name); |
f453ba04 DA |
2789 | |
2790 | if (crtc_req->mode_valid) { | |
2791 | /* If we have a mode we need a framebuffer. */ | |
2792 | /* If we pass -1, set the mode with the currently bound fb */ | |
2793 | if (crtc_req->fb_id == -1) { | |
f4510a27 | 2794 | if (!crtc->primary->fb) { |
6653cc8d VS |
2795 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
2796 | ret = -EINVAL; | |
2797 | goto out; | |
f453ba04 | 2798 | } |
f4510a27 | 2799 | fb = crtc->primary->fb; |
b0d12325 DV |
2800 | /* Make refcounting symmetric with the lookup path. */ |
2801 | drm_framebuffer_reference(fb); | |
f453ba04 | 2802 | } else { |
786b99ed DV |
2803 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
2804 | if (!fb) { | |
58367ed6 ZY |
2805 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
2806 | crtc_req->fb_id); | |
37c4e705 | 2807 | ret = -ENOENT; |
f453ba04 DA |
2808 | goto out; |
2809 | } | |
f453ba04 DA |
2810 | } |
2811 | ||
2812 | mode = drm_mode_create(dev); | |
ee34ab5b VS |
2813 | if (!mode) { |
2814 | ret = -ENOMEM; | |
2815 | goto out; | |
2816 | } | |
2817 | ||
934a8a89 | 2818 | ret = drm_mode_convert_umode(mode, &crtc_req->mode); |
90367bf6 VS |
2819 | if (ret) { |
2820 | DRM_DEBUG_KMS("Invalid mode\n"); | |
2821 | goto out; | |
2822 | } | |
2823 | ||
7eb5f302 LP |
2824 | /* |
2825 | * Check whether the primary plane supports the fb pixel format. | |
2826 | * Drivers not implementing the universal planes API use a | |
2827 | * default formats list provided by the DRM core which doesn't | |
2828 | * match real hardware capabilities. Skip the check in that | |
2829 | * case. | |
2830 | */ | |
2831 | if (!crtc->primary->format_default) { | |
2832 | ret = drm_plane_check_pixel_format(crtc->primary, | |
2833 | fb->pixel_format); | |
2834 | if (ret) { | |
2835 | DRM_DEBUG_KMS("Invalid pixel format %s\n", | |
2836 | drm_get_format_name(fb->pixel_format)); | |
2837 | goto out; | |
2838 | } | |
2839 | } | |
2840 | ||
c11e9283 DL |
2841 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
2842 | mode, fb); | |
2843 | if (ret) | |
5f61bb42 | 2844 | goto out; |
c11e9283 | 2845 | |
f453ba04 DA |
2846 | } |
2847 | ||
2848 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 2849 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
2850 | ret = -EINVAL; |
2851 | goto out; | |
2852 | } | |
2853 | ||
7781de74 | 2854 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
58367ed6 | 2855 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
2856 | crtc_req->count_connectors); |
2857 | ret = -EINVAL; | |
2858 | goto out; | |
2859 | } | |
2860 | ||
2861 | if (crtc_req->count_connectors > 0) { | |
2862 | u32 out_id; | |
2863 | ||
2864 | /* Avoid unbounded kernel memory allocation */ | |
2865 | if (crtc_req->count_connectors > config->num_connector) { | |
2866 | ret = -EINVAL; | |
2867 | goto out; | |
2868 | } | |
2869 | ||
2f6c5389 TR |
2870 | connector_set = kmalloc_array(crtc_req->count_connectors, |
2871 | sizeof(struct drm_connector *), | |
2872 | GFP_KERNEL); | |
f453ba04 DA |
2873 | if (!connector_set) { |
2874 | ret = -ENOMEM; | |
2875 | goto out; | |
2876 | } | |
2877 | ||
2878 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
b164d31f | 2879 | connector_set[i] = NULL; |
81f6c7f8 | 2880 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
f453ba04 DA |
2881 | if (get_user(out_id, &set_connectors_ptr[i])) { |
2882 | ret = -EFAULT; | |
2883 | goto out; | |
2884 | } | |
2885 | ||
b164d31f | 2886 | connector = drm_connector_lookup(dev, out_id); |
a2b34e22 | 2887 | if (!connector) { |
58367ed6 ZY |
2888 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
2889 | out_id); | |
f27657f2 | 2890 | ret = -ENOENT; |
f453ba04 DA |
2891 | goto out; |
2892 | } | |
9440106b JG |
2893 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
2894 | connector->base.id, | |
25933820 | 2895 | connector->name); |
f453ba04 DA |
2896 | |
2897 | connector_set[i] = connector; | |
2898 | } | |
2899 | } | |
2900 | ||
2901 | set.crtc = crtc; | |
2902 | set.x = crtc_req->x; | |
2903 | set.y = crtc_req->y; | |
2904 | set.mode = mode; | |
2905 | set.connectors = connector_set; | |
2906 | set.num_connectors = crtc_req->count_connectors; | |
5ef5f72f | 2907 | set.fb = fb; |
2d13b679 | 2908 | ret = drm_mode_set_config_internal(&set); |
f453ba04 DA |
2909 | |
2910 | out: | |
b0d12325 DV |
2911 | if (fb) |
2912 | drm_framebuffer_unreference(fb); | |
2913 | ||
b164d31f DA |
2914 | if (connector_set) { |
2915 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
2916 | if (connector_set[i]) | |
2917 | drm_connector_unreference(connector_set[i]); | |
2918 | } | |
2919 | } | |
f453ba04 | 2920 | kfree(connector_set); |
ee34ab5b | 2921 | drm_mode_destroy(dev, mode); |
84849903 | 2922 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2923 | return ret; |
2924 | } | |
2925 | ||
161d0dc1 MR |
2926 | /** |
2927 | * drm_mode_cursor_universal - translate legacy cursor ioctl call into a | |
2928 | * universal plane handler call | |
2929 | * @crtc: crtc to update cursor for | |
2930 | * @req: data pointer for the ioctl | |
2931 | * @file_priv: drm file for the ioctl call | |
2932 | * | |
2933 | * Legacy cursor ioctl's work directly with driver buffer handles. To | |
2934 | * translate legacy ioctl calls into universal plane handler calls, we need to | |
2935 | * wrap the native buffer handle in a drm_framebuffer. | |
2936 | * | |
2937 | * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB | |
2938 | * buffer with a pitch of 4*width; the universal plane interface should be used | |
2939 | * directly in cases where the hardware can support other buffer settings and | |
2940 | * userspace wants to make use of these capabilities. | |
2941 | * | |
2942 | * Returns: | |
1a498633 | 2943 | * Zero on success, negative errno on failure. |
161d0dc1 MR |
2944 | */ |
2945 | static int drm_mode_cursor_universal(struct drm_crtc *crtc, | |
2946 | struct drm_mode_cursor2 *req, | |
2947 | struct drm_file *file_priv) | |
2948 | { | |
2949 | struct drm_device *dev = crtc->dev; | |
2950 | struct drm_framebuffer *fb = NULL; | |
2951 | struct drm_mode_fb_cmd2 fbreq = { | |
2952 | .width = req->width, | |
2953 | .height = req->height, | |
2954 | .pixel_format = DRM_FORMAT_ARGB8888, | |
2955 | .pitches = { req->width * 4 }, | |
2956 | .handles = { req->handle }, | |
2957 | }; | |
2958 | int32_t crtc_x, crtc_y; | |
2959 | uint32_t crtc_w = 0, crtc_h = 0; | |
2960 | uint32_t src_w = 0, src_h = 0; | |
2961 | int ret = 0; | |
2962 | ||
2963 | BUG_ON(!crtc->cursor); | |
f2b50c11 | 2964 | WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL); |
161d0dc1 MR |
2965 | |
2966 | /* | |
2967 | * Obtain fb we'll be using (either new or existing) and take an extra | |
2968 | * reference to it if fb != null. setplane will take care of dropping | |
2969 | * the reference if the plane update fails. | |
2970 | */ | |
2971 | if (req->flags & DRM_MODE_CURSOR_BO) { | |
2972 | if (req->handle) { | |
9a6f5130 | 2973 | fb = internal_framebuffer_create(dev, &fbreq, file_priv); |
161d0dc1 MR |
2974 | if (IS_ERR(fb)) { |
2975 | DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n"); | |
2976 | return PTR_ERR(fb); | |
2977 | } | |
161d0dc1 MR |
2978 | } else { |
2979 | fb = NULL; | |
2980 | } | |
2981 | } else { | |
161d0dc1 MR |
2982 | fb = crtc->cursor->fb; |
2983 | if (fb) | |
2984 | drm_framebuffer_reference(fb); | |
161d0dc1 MR |
2985 | } |
2986 | ||
2987 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
2988 | crtc_x = req->x; | |
2989 | crtc_y = req->y; | |
2990 | } else { | |
2991 | crtc_x = crtc->cursor_x; | |
2992 | crtc_y = crtc->cursor_y; | |
2993 | } | |
2994 | ||
2995 | if (fb) { | |
2996 | crtc_w = fb->width; | |
2997 | crtc_h = fb->height; | |
2998 | src_w = fb->width << 16; | |
2999 | src_h = fb->height << 16; | |
3000 | } | |
3001 | ||
3002 | /* | |
3003 | * setplane_internal will take care of deref'ing either the old or new | |
3004 | * framebuffer depending on success. | |
3005 | */ | |
f2b50c11 | 3006 | ret = __setplane_internal(crtc->cursor, crtc, fb, |
161d0dc1 MR |
3007 | crtc_x, crtc_y, crtc_w, crtc_h, |
3008 | 0, 0, src_w, src_h); | |
3009 | ||
3010 | /* Update successful; save new cursor position, if necessary */ | |
3011 | if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) { | |
3012 | crtc->cursor_x = req->x; | |
3013 | crtc->cursor_y = req->y; | |
3014 | } | |
3015 | ||
3016 | return ret; | |
3017 | } | |
3018 | ||
4c813d4d DA |
3019 | static int drm_mode_cursor_common(struct drm_device *dev, |
3020 | struct drm_mode_cursor2 *req, | |
3021 | struct drm_file *file_priv) | |
f453ba04 | 3022 | { |
f453ba04 DA |
3023 | struct drm_crtc *crtc; |
3024 | int ret = 0; | |
3025 | ||
fb3b06c8 DA |
3026 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3027 | return -EINVAL; | |
3028 | ||
7c4eaca4 | 3029 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
f453ba04 | 3030 | return -EINVAL; |
f453ba04 | 3031 | |
a2b34e22 RC |
3032 | crtc = drm_crtc_find(dev, req->crtc_id); |
3033 | if (!crtc) { | |
58367ed6 | 3034 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
f27657f2 | 3035 | return -ENOENT; |
f453ba04 | 3036 | } |
f453ba04 | 3037 | |
161d0dc1 MR |
3038 | /* |
3039 | * If this crtc has a universal cursor plane, call that plane's update | |
3040 | * handler rather than using legacy cursor handlers. | |
3041 | */ | |
4d02e2de | 3042 | drm_modeset_lock_crtc(crtc, crtc->cursor); |
f2b50c11 DV |
3043 | if (crtc->cursor) { |
3044 | ret = drm_mode_cursor_universal(crtc, req, file_priv); | |
3045 | goto out; | |
3046 | } | |
3047 | ||
f453ba04 | 3048 | if (req->flags & DRM_MODE_CURSOR_BO) { |
4c813d4d | 3049 | if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { |
f453ba04 DA |
3050 | ret = -ENXIO; |
3051 | goto out; | |
3052 | } | |
3053 | /* Turns off the cursor if handle is 0 */ | |
4c813d4d DA |
3054 | if (crtc->funcs->cursor_set2) |
3055 | ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, | |
3056 | req->width, req->height, req->hot_x, req->hot_y); | |
3057 | else | |
3058 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, | |
3059 | req->width, req->height); | |
f453ba04 DA |
3060 | } |
3061 | ||
3062 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
3063 | if (crtc->funcs->cursor_move) { | |
3064 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); | |
3065 | } else { | |
f453ba04 DA |
3066 | ret = -EFAULT; |
3067 | goto out; | |
3068 | } | |
3069 | } | |
3070 | out: | |
d059f652 | 3071 | drm_modeset_unlock_crtc(crtc); |
dac35663 | 3072 | |
f453ba04 | 3073 | return ret; |
4c813d4d DA |
3074 | |
3075 | } | |
c8e32cc1 DV |
3076 | |
3077 | ||
3078 | /** | |
3079 | * drm_mode_cursor_ioctl - set CRTC's cursor configuration | |
3080 | * @dev: drm device for the ioctl | |
3081 | * @data: data pointer for the ioctl | |
3082 | * @file_priv: drm file for the ioctl call | |
3083 | * | |
3084 | * Set the cursor configuration based on user request. | |
3085 | * | |
3086 | * Called by the user via ioctl. | |
3087 | * | |
3088 | * Returns: | |
1a498633 | 3089 | * Zero on success, negative errno on failure. |
c8e32cc1 | 3090 | */ |
4c813d4d | 3091 | int drm_mode_cursor_ioctl(struct drm_device *dev, |
c8e32cc1 | 3092 | void *data, struct drm_file *file_priv) |
4c813d4d DA |
3093 | { |
3094 | struct drm_mode_cursor *req = data; | |
3095 | struct drm_mode_cursor2 new_req; | |
3096 | ||
3097 | memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); | |
3098 | new_req.hot_x = new_req.hot_y = 0; | |
3099 | ||
3100 | return drm_mode_cursor_common(dev, &new_req, file_priv); | |
3101 | } | |
3102 | ||
c8e32cc1 DV |
3103 | /** |
3104 | * drm_mode_cursor2_ioctl - set CRTC's cursor configuration | |
3105 | * @dev: drm device for the ioctl | |
3106 | * @data: data pointer for the ioctl | |
3107 | * @file_priv: drm file for the ioctl call | |
3108 | * | |
3109 | * Set the cursor configuration based on user request. This implements the 2nd | |
3110 | * version of the cursor ioctl, which allows userspace to additionally specify | |
3111 | * the hotspot of the pointer. | |
3112 | * | |
3113 | * Called by the user via ioctl. | |
3114 | * | |
3115 | * Returns: | |
1a498633 | 3116 | * Zero on success, negative errno on failure. |
c8e32cc1 | 3117 | */ |
4c813d4d DA |
3118 | int drm_mode_cursor2_ioctl(struct drm_device *dev, |
3119 | void *data, struct drm_file *file_priv) | |
3120 | { | |
3121 | struct drm_mode_cursor2 *req = data; | |
4dfd909f | 3122 | |
4c813d4d | 3123 | return drm_mode_cursor_common(dev, req, file_priv); |
f453ba04 DA |
3124 | } |
3125 | ||
c8e32cc1 DV |
3126 | /** |
3127 | * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description | |
3128 | * @bpp: bits per pixels | |
3129 | * @depth: bit depth per pixel | |
3130 | * | |
3131 | * Computes a drm fourcc pixel format code for the given @bpp/@depth values. | |
3132 | * Useful in fbdev emulation code, since that deals in those values. | |
3133 | */ | |
308e5bcb JB |
3134 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) |
3135 | { | |
3136 | uint32_t fmt; | |
3137 | ||
3138 | switch (bpp) { | |
3139 | case 8: | |
d84f031b | 3140 | fmt = DRM_FORMAT_C8; |
308e5bcb JB |
3141 | break; |
3142 | case 16: | |
3143 | if (depth == 15) | |
04b3924d | 3144 | fmt = DRM_FORMAT_XRGB1555; |
308e5bcb | 3145 | else |
04b3924d | 3146 | fmt = DRM_FORMAT_RGB565; |
308e5bcb JB |
3147 | break; |
3148 | case 24: | |
04b3924d | 3149 | fmt = DRM_FORMAT_RGB888; |
308e5bcb JB |
3150 | break; |
3151 | case 32: | |
3152 | if (depth == 24) | |
04b3924d | 3153 | fmt = DRM_FORMAT_XRGB8888; |
308e5bcb | 3154 | else if (depth == 30) |
04b3924d | 3155 | fmt = DRM_FORMAT_XRGB2101010; |
308e5bcb | 3156 | else |
04b3924d | 3157 | fmt = DRM_FORMAT_ARGB8888; |
308e5bcb JB |
3158 | break; |
3159 | default: | |
04b3924d VS |
3160 | DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); |
3161 | fmt = DRM_FORMAT_XRGB8888; | |
308e5bcb JB |
3162 | break; |
3163 | } | |
3164 | ||
3165 | return fmt; | |
3166 | } | |
3167 | EXPORT_SYMBOL(drm_mode_legacy_fb_format); | |
3168 | ||
f453ba04 DA |
3169 | /** |
3170 | * drm_mode_addfb - add an FB to the graphics configuration | |
065a50ed DV |
3171 | * @dev: drm device for the ioctl |
3172 | * @data: data pointer for the ioctl | |
3173 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3174 | * |
c8e32cc1 | 3175 | * Add a new FB to the specified CRTC, given a user request. This is the |
209f5527 | 3176 | * original addfb ioctl which only supported RGB formats. |
f453ba04 DA |
3177 | * |
3178 | * Called by the user via ioctl. | |
3179 | * | |
c8e32cc1 | 3180 | * Returns: |
1a498633 | 3181 | * Zero on success, negative errno on failure. |
f453ba04 DA |
3182 | */ |
3183 | int drm_mode_addfb(struct drm_device *dev, | |
3184 | void *data, struct drm_file *file_priv) | |
3185 | { | |
308e5bcb JB |
3186 | struct drm_mode_fb_cmd *or = data; |
3187 | struct drm_mode_fb_cmd2 r = {}; | |
228f2cb3 | 3188 | int ret; |
308e5bcb | 3189 | |
228f2cb3 | 3190 | /* convert to new format and call new ioctl */ |
308e5bcb JB |
3191 | r.fb_id = or->fb_id; |
3192 | r.width = or->width; | |
3193 | r.height = or->height; | |
3194 | r.pitches[0] = or->pitch; | |
3195 | r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); | |
3196 | r.handles[0] = or->handle; | |
3197 | ||
228f2cb3 CE |
3198 | ret = drm_mode_addfb2(dev, &r, file_priv); |
3199 | if (ret) | |
3200 | return ret; | |
308e5bcb | 3201 | |
228f2cb3 | 3202 | or->fb_id = r.fb_id; |
4b096ac1 | 3203 | |
baf698b0 | 3204 | return 0; |
308e5bcb JB |
3205 | } |
3206 | ||
cff91b62 | 3207 | static int format_check(const struct drm_mode_fb_cmd2 *r) |
935b5977 VS |
3208 | { |
3209 | uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; | |
3210 | ||
3211 | switch (format) { | |
3212 | case DRM_FORMAT_C8: | |
3213 | case DRM_FORMAT_RGB332: | |
3214 | case DRM_FORMAT_BGR233: | |
3215 | case DRM_FORMAT_XRGB4444: | |
3216 | case DRM_FORMAT_XBGR4444: | |
3217 | case DRM_FORMAT_RGBX4444: | |
3218 | case DRM_FORMAT_BGRX4444: | |
3219 | case DRM_FORMAT_ARGB4444: | |
3220 | case DRM_FORMAT_ABGR4444: | |
3221 | case DRM_FORMAT_RGBA4444: | |
3222 | case DRM_FORMAT_BGRA4444: | |
3223 | case DRM_FORMAT_XRGB1555: | |
3224 | case DRM_FORMAT_XBGR1555: | |
3225 | case DRM_FORMAT_RGBX5551: | |
3226 | case DRM_FORMAT_BGRX5551: | |
3227 | case DRM_FORMAT_ARGB1555: | |
3228 | case DRM_FORMAT_ABGR1555: | |
3229 | case DRM_FORMAT_RGBA5551: | |
3230 | case DRM_FORMAT_BGRA5551: | |
3231 | case DRM_FORMAT_RGB565: | |
3232 | case DRM_FORMAT_BGR565: | |
3233 | case DRM_FORMAT_RGB888: | |
3234 | case DRM_FORMAT_BGR888: | |
3235 | case DRM_FORMAT_XRGB8888: | |
3236 | case DRM_FORMAT_XBGR8888: | |
3237 | case DRM_FORMAT_RGBX8888: | |
3238 | case DRM_FORMAT_BGRX8888: | |
3239 | case DRM_FORMAT_ARGB8888: | |
3240 | case DRM_FORMAT_ABGR8888: | |
3241 | case DRM_FORMAT_RGBA8888: | |
3242 | case DRM_FORMAT_BGRA8888: | |
3243 | case DRM_FORMAT_XRGB2101010: | |
3244 | case DRM_FORMAT_XBGR2101010: | |
3245 | case DRM_FORMAT_RGBX1010102: | |
3246 | case DRM_FORMAT_BGRX1010102: | |
3247 | case DRM_FORMAT_ARGB2101010: | |
3248 | case DRM_FORMAT_ABGR2101010: | |
3249 | case DRM_FORMAT_RGBA1010102: | |
3250 | case DRM_FORMAT_BGRA1010102: | |
3251 | case DRM_FORMAT_YUYV: | |
3252 | case DRM_FORMAT_YVYU: | |
3253 | case DRM_FORMAT_UYVY: | |
3254 | case DRM_FORMAT_VYUY: | |
3255 | case DRM_FORMAT_AYUV: | |
3256 | case DRM_FORMAT_NV12: | |
3257 | case DRM_FORMAT_NV21: | |
3258 | case DRM_FORMAT_NV16: | |
3259 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
3260 | case DRM_FORMAT_NV24: |
3261 | case DRM_FORMAT_NV42: | |
935b5977 VS |
3262 | case DRM_FORMAT_YUV410: |
3263 | case DRM_FORMAT_YVU410: | |
3264 | case DRM_FORMAT_YUV411: | |
3265 | case DRM_FORMAT_YVU411: | |
3266 | case DRM_FORMAT_YUV420: | |
3267 | case DRM_FORMAT_YVU420: | |
3268 | case DRM_FORMAT_YUV422: | |
3269 | case DRM_FORMAT_YVU422: | |
3270 | case DRM_FORMAT_YUV444: | |
3271 | case DRM_FORMAT_YVU444: | |
3272 | return 0; | |
3273 | default: | |
23c453a4 VS |
3274 | DRM_DEBUG_KMS("invalid pixel format %s\n", |
3275 | drm_get_format_name(r->pixel_format)); | |
935b5977 VS |
3276 | return -EINVAL; |
3277 | } | |
3278 | } | |
3279 | ||
cff91b62 | 3280 | static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) |
d1b45d5f VS |
3281 | { |
3282 | int ret, hsub, vsub, num_planes, i; | |
3283 | ||
3284 | ret = format_check(r); | |
3285 | if (ret) { | |
6ba6d03e VS |
3286 | DRM_DEBUG_KMS("bad framebuffer format %s\n", |
3287 | drm_get_format_name(r->pixel_format)); | |
d1b45d5f VS |
3288 | return ret; |
3289 | } | |
3290 | ||
3291 | hsub = drm_format_horz_chroma_subsampling(r->pixel_format); | |
3292 | vsub = drm_format_vert_chroma_subsampling(r->pixel_format); | |
3293 | num_planes = drm_format_num_planes(r->pixel_format); | |
3294 | ||
3295 | if (r->width == 0 || r->width % hsub) { | |
209f5527 | 3296 | DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width); |
d1b45d5f VS |
3297 | return -EINVAL; |
3298 | } | |
3299 | ||
3300 | if (r->height == 0 || r->height % vsub) { | |
1aa1b11c | 3301 | DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); |
d1b45d5f VS |
3302 | return -EINVAL; |
3303 | } | |
3304 | ||
3305 | for (i = 0; i < num_planes; i++) { | |
3306 | unsigned int width = r->width / (i != 0 ? hsub : 1); | |
b180b5d1 VS |
3307 | unsigned int height = r->height / (i != 0 ? vsub : 1); |
3308 | unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); | |
d1b45d5f VS |
3309 | |
3310 | if (!r->handles[i]) { | |
1aa1b11c | 3311 | DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); |
d1b45d5f VS |
3312 | return -EINVAL; |
3313 | } | |
3314 | ||
b180b5d1 VS |
3315 | if ((uint64_t) width * cpp > UINT_MAX) |
3316 | return -ERANGE; | |
3317 | ||
3318 | if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) | |
3319 | return -ERANGE; | |
3320 | ||
3321 | if (r->pitches[i] < width * cpp) { | |
1aa1b11c | 3322 | DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); |
d1b45d5f VS |
3323 | return -EINVAL; |
3324 | } | |
e3eb3250 RC |
3325 | |
3326 | if (r->modifier[i] && !(r->flags & DRM_MODE_FB_MODIFIERS)) { | |
3327 | DRM_DEBUG_KMS("bad fb modifier %llu for plane %d\n", | |
3328 | r->modifier[i], i); | |
3329 | return -EINVAL; | |
3330 | } | |
570655b0 RC |
3331 | |
3332 | /* modifier specific checks: */ | |
3333 | switch (r->modifier[i]) { | |
3334 | case DRM_FORMAT_MOD_SAMSUNG_64_32_TILE: | |
3335 | /* NOTE: the pitch restriction may be lifted later if it turns | |
3336 | * out that no hw has this restriction: | |
3337 | */ | |
3338 | if (r->pixel_format != DRM_FORMAT_NV12 || | |
3339 | width % 128 || height % 32 || | |
3340 | r->pitches[i] % 128) { | |
3341 | DRM_DEBUG_KMS("bad modifier data for plane %d\n", i); | |
3342 | return -EINVAL; | |
3343 | } | |
3344 | break; | |
3345 | ||
3346 | default: | |
3347 | break; | |
3348 | } | |
d1b45d5f VS |
3349 | } |
3350 | ||
bbe16a40 DV |
3351 | for (i = num_planes; i < 4; i++) { |
3352 | if (r->modifier[i]) { | |
3353 | DRM_DEBUG_KMS("non-zero modifier for unused plane %d\n", i); | |
3354 | return -EINVAL; | |
3355 | } | |
3356 | ||
3357 | /* Pre-FB_MODIFIERS userspace didn't clear the structs properly. */ | |
3358 | if (!(r->flags & DRM_MODE_FB_MODIFIERS)) | |
3359 | continue; | |
3360 | ||
3361 | if (r->handles[i]) { | |
3362 | DRM_DEBUG_KMS("buffer object handle for unused plane %d\n", i); | |
3363 | return -EINVAL; | |
3364 | } | |
3365 | ||
3366 | if (r->pitches[i]) { | |
3367 | DRM_DEBUG_KMS("non-zero pitch for unused plane %d\n", i); | |
3368 | return -EINVAL; | |
3369 | } | |
3370 | ||
3371 | if (r->offsets[i]) { | |
3372 | DRM_DEBUG_KMS("non-zero offset for unused plane %d\n", i); | |
3373 | return -EINVAL; | |
3374 | } | |
3375 | } | |
3376 | ||
d1b45d5f VS |
3377 | return 0; |
3378 | } | |
3379 | ||
9a6f5130 CW |
3380 | static struct drm_framebuffer * |
3381 | internal_framebuffer_create(struct drm_device *dev, | |
1eb83451 | 3382 | const struct drm_mode_fb_cmd2 *r, |
9a6f5130 | 3383 | struct drm_file *file_priv) |
308e5bcb | 3384 | { |
f453ba04 DA |
3385 | struct drm_mode_config *config = &dev->mode_config; |
3386 | struct drm_framebuffer *fb; | |
4a1b0714 | 3387 | int ret; |
f453ba04 | 3388 | |
e3eb3250 | 3389 | if (r->flags & ~(DRM_MODE_FB_INTERLACED | DRM_MODE_FB_MODIFIERS)) { |
e3cc3520 | 3390 | DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); |
c394c2b0 | 3391 | return ERR_PTR(-EINVAL); |
e3cc3520 VS |
3392 | } |
3393 | ||
f453ba04 | 3394 | if ((config->min_width > r->width) || (r->width > config->max_width)) { |
1aa1b11c | 3395 | DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", |
8cf5c917 | 3396 | r->width, config->min_width, config->max_width); |
c394c2b0 | 3397 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
3398 | } |
3399 | if ((config->min_height > r->height) || (r->height > config->max_height)) { | |
1aa1b11c | 3400 | DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", |
8cf5c917 | 3401 | r->height, config->min_height, config->max_height); |
c394c2b0 | 3402 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
3403 | } |
3404 | ||
e3eb3250 RC |
3405 | if (r->flags & DRM_MODE_FB_MODIFIERS && |
3406 | !dev->mode_config.allow_fb_modifiers) { | |
3407 | DRM_DEBUG_KMS("driver does not support fb modifiers\n"); | |
3408 | return ERR_PTR(-EINVAL); | |
3409 | } | |
3410 | ||
d1b45d5f VS |
3411 | ret = framebuffer_check(r); |
3412 | if (ret) | |
c394c2b0 | 3413 | return ERR_PTR(ret); |
935b5977 | 3414 | |
f453ba04 | 3415 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
cce13ff7 | 3416 | if (IS_ERR(fb)) { |
1aa1b11c | 3417 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
c394c2b0 | 3418 | return fb; |
f453ba04 DA |
3419 | } |
3420 | ||
c394c2b0 MR |
3421 | return fb; |
3422 | } | |
4b096ac1 | 3423 | |
c394c2b0 MR |
3424 | /** |
3425 | * drm_mode_addfb2 - add an FB to the graphics configuration | |
3426 | * @dev: drm device for the ioctl | |
3427 | * @data: data pointer for the ioctl | |
3428 | * @file_priv: drm file for the ioctl call | |
3429 | * | |
3430 | * Add a new FB to the specified CRTC, given a user request with format. This is | |
3431 | * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers | |
3432 | * and uses fourcc codes as pixel format specifiers. | |
3433 | * | |
3434 | * Called by the user via ioctl. | |
3435 | * | |
3436 | * Returns: | |
1a498633 | 3437 | * Zero on success, negative errno on failure. |
c394c2b0 MR |
3438 | */ |
3439 | int drm_mode_addfb2(struct drm_device *dev, | |
3440 | void *data, struct drm_file *file_priv) | |
3441 | { | |
9a6f5130 | 3442 | struct drm_mode_fb_cmd2 *r = data; |
c394c2b0 MR |
3443 | struct drm_framebuffer *fb; |
3444 | ||
3445 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3446 | return -EINVAL; | |
3447 | ||
9a6f5130 | 3448 | fb = internal_framebuffer_create(dev, r, file_priv); |
c394c2b0 MR |
3449 | if (IS_ERR(fb)) |
3450 | return PTR_ERR(fb); | |
3451 | ||
9a6f5130 | 3452 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); |
9a6f5130 | 3453 | r->fb_id = fb->base.id; |
c7e1c59a DA |
3454 | |
3455 | /* Transfer ownership to the filp for reaping on close */ | |
3456 | mutex_lock(&file_priv->fbs_lock); | |
9a6f5130 CW |
3457 | list_add(&fb->filp_head, &file_priv->fbs); |
3458 | mutex_unlock(&file_priv->fbs_lock); | |
3459 | ||
c394c2b0 | 3460 | return 0; |
f453ba04 DA |
3461 | } |
3462 | ||
f2d580b9 ML |
3463 | struct drm_mode_rmfb_work { |
3464 | struct work_struct work; | |
3465 | struct list_head fbs; | |
3466 | }; | |
3467 | ||
3468 | static void drm_mode_rmfb_work_fn(struct work_struct *w) | |
3469 | { | |
3470 | struct drm_mode_rmfb_work *arg = container_of(w, typeof(*arg), work); | |
3471 | ||
3472 | while (!list_empty(&arg->fbs)) { | |
3473 | struct drm_framebuffer *fb = | |
3474 | list_first_entry(&arg->fbs, typeof(*fb), filp_head); | |
3475 | ||
3476 | list_del_init(&fb->filp_head); | |
3477 | drm_framebuffer_remove(fb); | |
3478 | } | |
3479 | } | |
3480 | ||
f453ba04 DA |
3481 | /** |
3482 | * drm_mode_rmfb - remove an FB from the configuration | |
065a50ed DV |
3483 | * @dev: drm device for the ioctl |
3484 | * @data: data pointer for the ioctl | |
3485 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3486 | * |
f453ba04 DA |
3487 | * Remove the FB specified by the user. |
3488 | * | |
3489 | * Called by the user via ioctl. | |
3490 | * | |
c8e32cc1 | 3491 | * Returns: |
1a498633 | 3492 | * Zero on success, negative errno on failure. |
f453ba04 DA |
3493 | */ |
3494 | int drm_mode_rmfb(struct drm_device *dev, | |
3495 | void *data, struct drm_file *file_priv) | |
3496 | { | |
f453ba04 DA |
3497 | struct drm_framebuffer *fb = NULL; |
3498 | struct drm_framebuffer *fbl = NULL; | |
3499 | uint32_t *id = data; | |
f453ba04 DA |
3500 | int found = 0; |
3501 | ||
fb3b06c8 DA |
3502 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3503 | return -EINVAL; | |
3504 | ||
72fe90b8 DA |
3505 | fb = drm_framebuffer_lookup(dev, *id); |
3506 | if (!fb) | |
3507 | return -ENOENT; | |
3508 | ||
4b096ac1 | 3509 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
3510 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
3511 | if (fb == fbl) | |
3512 | found = 1; | |
72fe90b8 DA |
3513 | if (!found) { |
3514 | mutex_unlock(&file_priv->fbs_lock); | |
3515 | goto fail_unref; | |
3516 | } | |
2b677e8c | 3517 | |
4b096ac1 DV |
3518 | list_del_init(&fb->filp_head); |
3519 | mutex_unlock(&file_priv->fbs_lock); | |
f453ba04 | 3520 | |
72fe90b8 DA |
3521 | /* drop the reference we picked up in framebuffer lookup */ |
3522 | drm_framebuffer_unreference(fb); | |
2b677e8c | 3523 | |
f2d580b9 ML |
3524 | /* |
3525 | * we now own the reference that was stored in the fbs list | |
3526 | * | |
3527 | * drm_framebuffer_remove may fail with -EINTR on pending signals, | |
3528 | * so run this in a separate stack as there's no way to correctly | |
3529 | * handle this after the fb is already removed from the lookup table. | |
3530 | */ | |
3531 | if (drm_framebuffer_read_refcount(fb) > 1) { | |
3532 | struct drm_mode_rmfb_work arg; | |
3533 | ||
3534 | INIT_WORK_ONSTACK(&arg.work, drm_mode_rmfb_work_fn); | |
3535 | INIT_LIST_HEAD(&arg.fbs); | |
3536 | list_add_tail(&fb->filp_head, &arg.fbs); | |
3537 | ||
3538 | schedule_work(&arg.work); | |
3539 | flush_work(&arg.work); | |
3540 | destroy_work_on_stack(&arg.work); | |
3541 | } else | |
3542 | drm_framebuffer_unreference(fb); | |
3543 | ||
72fe90b8 | 3544 | return 0; |
2b677e8c | 3545 | |
72fe90b8 DA |
3546 | fail_unref: |
3547 | drm_framebuffer_unreference(fb); | |
37c4e705 | 3548 | return -ENOENT; |
f453ba04 DA |
3549 | } |
3550 | ||
3551 | /** | |
3552 | * drm_mode_getfb - get FB info | |
065a50ed DV |
3553 | * @dev: drm device for the ioctl |
3554 | * @data: data pointer for the ioctl | |
3555 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3556 | * |
f453ba04 DA |
3557 | * Lookup the FB given its ID and return info about it. |
3558 | * | |
3559 | * Called by the user via ioctl. | |
3560 | * | |
c8e32cc1 | 3561 | * Returns: |
1a498633 | 3562 | * Zero on success, negative errno on failure. |
f453ba04 DA |
3563 | */ |
3564 | int drm_mode_getfb(struct drm_device *dev, | |
3565 | void *data, struct drm_file *file_priv) | |
3566 | { | |
3567 | struct drm_mode_fb_cmd *r = data; | |
f453ba04 | 3568 | struct drm_framebuffer *fb; |
58c0dca1 | 3569 | int ret; |
f453ba04 | 3570 | |
fb3b06c8 DA |
3571 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3572 | return -EINVAL; | |
3573 | ||
786b99ed | 3574 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
58c0dca1 | 3575 | if (!fb) |
37c4e705 | 3576 | return -ENOENT; |
f453ba04 DA |
3577 | |
3578 | r->height = fb->height; | |
3579 | r->width = fb->width; | |
3580 | r->depth = fb->depth; | |
3581 | r->bpp = fb->bits_per_pixel; | |
01f2c773 | 3582 | r->pitch = fb->pitches[0]; |
101b96f3 | 3583 | if (fb->funcs->create_handle) { |
09f308f7 | 3584 | if (file_priv->is_master || capable(CAP_SYS_ADMIN) || |
43683057 | 3585 | drm_is_control_client(file_priv)) { |
101b96f3 DH |
3586 | ret = fb->funcs->create_handle(fb, file_priv, |
3587 | &r->handle); | |
3588 | } else { | |
3589 | /* GET_FB() is an unprivileged ioctl so we must not | |
3590 | * return a buffer-handle to non-master processes! For | |
3591 | * backwards-compatibility reasons, we cannot make | |
3592 | * GET_FB() privileged, so just return an invalid handle | |
3593 | * for non-masters. */ | |
3594 | r->handle = 0; | |
3595 | ret = 0; | |
3596 | } | |
3597 | } else { | |
af26ef3b | 3598 | ret = -ENODEV; |
101b96f3 | 3599 | } |
f453ba04 | 3600 | |
58c0dca1 DV |
3601 | drm_framebuffer_unreference(fb); |
3602 | ||
f453ba04 DA |
3603 | return ret; |
3604 | } | |
3605 | ||
c8e32cc1 DV |
3606 | /** |
3607 | * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB | |
3608 | * @dev: drm device for the ioctl | |
3609 | * @data: data pointer for the ioctl | |
3610 | * @file_priv: drm file for the ioctl call | |
3611 | * | |
3612 | * Lookup the FB and flush out the damaged area supplied by userspace as a clip | |
3613 | * rectangle list. Generic userspace which does frontbuffer rendering must call | |
3614 | * this ioctl to flush out the changes on manual-update display outputs, e.g. | |
3615 | * usb display-link, mipi manual update panels or edp panel self refresh modes. | |
3616 | * | |
3617 | * Modesetting drivers which always update the frontbuffer do not need to | |
3618 | * implement the corresponding ->dirty framebuffer callback. | |
3619 | * | |
3620 | * Called by the user via ioctl. | |
3621 | * | |
3622 | * Returns: | |
1a498633 | 3623 | * Zero on success, negative errno on failure. |
c8e32cc1 | 3624 | */ |
884840aa JB |
3625 | int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
3626 | void *data, struct drm_file *file_priv) | |
3627 | { | |
3628 | struct drm_clip_rect __user *clips_ptr; | |
3629 | struct drm_clip_rect *clips = NULL; | |
3630 | struct drm_mode_fb_dirty_cmd *r = data; | |
884840aa JB |
3631 | struct drm_framebuffer *fb; |
3632 | unsigned flags; | |
3633 | int num_clips; | |
4a1b0714 | 3634 | int ret; |
884840aa | 3635 | |
fb3b06c8 DA |
3636 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3637 | return -EINVAL; | |
3638 | ||
786b99ed | 3639 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
4ccf097f | 3640 | if (!fb) |
37c4e705 | 3641 | return -ENOENT; |
884840aa JB |
3642 | |
3643 | num_clips = r->num_clips; | |
81f6c7f8 | 3644 | clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; |
884840aa JB |
3645 | |
3646 | if (!num_clips != !clips_ptr) { | |
3647 | ret = -EINVAL; | |
3648 | goto out_err1; | |
3649 | } | |
3650 | ||
3651 | flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; | |
3652 | ||
3653 | /* If userspace annotates copy, clips must come in pairs */ | |
3654 | if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { | |
3655 | ret = -EINVAL; | |
3656 | goto out_err1; | |
3657 | } | |
3658 | ||
3659 | if (num_clips && clips_ptr) { | |
a5cd3351 XW |
3660 | if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { |
3661 | ret = -EINVAL; | |
3662 | goto out_err1; | |
3663 | } | |
bd3f0ff9 | 3664 | clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); |
884840aa JB |
3665 | if (!clips) { |
3666 | ret = -ENOMEM; | |
3667 | goto out_err1; | |
3668 | } | |
3669 | ||
3670 | ret = copy_from_user(clips, clips_ptr, | |
3671 | num_clips * sizeof(*clips)); | |
e902a358 DC |
3672 | if (ret) { |
3673 | ret = -EFAULT; | |
884840aa | 3674 | goto out_err2; |
e902a358 | 3675 | } |
884840aa JB |
3676 | } |
3677 | ||
3678 | if (fb->funcs->dirty) { | |
02b00162 TH |
3679 | ret = fb->funcs->dirty(fb, file_priv, flags, r->color, |
3680 | clips, num_clips); | |
884840aa JB |
3681 | } else { |
3682 | ret = -ENOSYS; | |
884840aa JB |
3683 | } |
3684 | ||
3685 | out_err2: | |
3686 | kfree(clips); | |
3687 | out_err1: | |
4ccf097f DV |
3688 | drm_framebuffer_unreference(fb); |
3689 | ||
884840aa JB |
3690 | return ret; |
3691 | } | |
3692 | ||
f453ba04 DA |
3693 | /** |
3694 | * drm_fb_release - remove and free the FBs on this file | |
065a50ed | 3695 | * @priv: drm file for the ioctl |
f453ba04 | 3696 | * |
f453ba04 DA |
3697 | * Destroy all the FBs associated with @filp. |
3698 | * | |
3699 | * Called by the user via ioctl. | |
3700 | * | |
c8e32cc1 | 3701 | * Returns: |
1a498633 | 3702 | * Zero on success, negative errno on failure. |
f453ba04 | 3703 | */ |
ea39f835 | 3704 | void drm_fb_release(struct drm_file *priv) |
f453ba04 | 3705 | { |
f453ba04 | 3706 | struct drm_framebuffer *fb, *tfb; |
f2d580b9 ML |
3707 | struct drm_mode_rmfb_work arg; |
3708 | ||
3709 | INIT_LIST_HEAD(&arg.fbs); | |
f453ba04 | 3710 | |
1b116297 DV |
3711 | /* |
3712 | * When the file gets released that means no one else can access the fb | |
e2db726b | 3713 | * list any more, so no need to grab fpriv->fbs_lock. And we need to |
1b116297 DV |
3714 | * avoid upsetting lockdep since the universal cursor code adds a |
3715 | * framebuffer while holding mutex locks. | |
3716 | * | |
3717 | * Note that a real deadlock between fpriv->fbs_lock and the modeset | |
3718 | * locks is impossible here since no one else but this function can get | |
3719 | * at it any more. | |
3720 | */ | |
f453ba04 | 3721 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
f2d580b9 ML |
3722 | if (drm_framebuffer_read_refcount(fb) > 1) { |
3723 | list_move_tail(&fb->filp_head, &arg.fbs); | |
3724 | } else { | |
3725 | list_del_init(&fb->filp_head); | |
2b677e8c | 3726 | |
f2d580b9 ML |
3727 | /* This drops the fpriv->fbs reference. */ |
3728 | drm_framebuffer_unreference(fb); | |
3729 | } | |
3730 | } | |
3731 | ||
3732 | if (!list_empty(&arg.fbs)) { | |
3733 | INIT_WORK_ONSTACK(&arg.work, drm_mode_rmfb_work_fn); | |
3734 | ||
3735 | schedule_work(&arg.work); | |
3736 | flush_work(&arg.work); | |
3737 | destroy_work_on_stack(&arg.work); | |
f453ba04 | 3738 | } |
f453ba04 DA |
3739 | } |
3740 | ||
c8e32cc1 DV |
3741 | /** |
3742 | * drm_property_create - create a new property type | |
3743 | * @dev: drm device | |
3744 | * @flags: flags specifying the property type | |
3745 | * @name: name of the property | |
3746 | * @num_values: number of pre-defined values | |
3747 | * | |
3748 | * This creates a new generic drm property which can then be attached to a drm | |
3749 | * object with drm_object_attach_property. The returned property object must be | |
3750 | * freed with drm_property_destroy. | |
3751 | * | |
3b5b9932 DL |
3752 | * Note that the DRM core keeps a per-device list of properties and that, if |
3753 | * drm_mode_config_cleanup() is called, it will destroy all properties created | |
3754 | * by the driver. | |
3755 | * | |
c8e32cc1 DV |
3756 | * Returns: |
3757 | * A pointer to the newly created property on success, NULL on failure. | |
3758 | */ | |
f453ba04 DA |
3759 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
3760 | const char *name, int num_values) | |
3761 | { | |
3762 | struct drm_property *property = NULL; | |
6bfc56aa | 3763 | int ret; |
f453ba04 DA |
3764 | |
3765 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); | |
3766 | if (!property) | |
3767 | return NULL; | |
3768 | ||
98f75de4 RC |
3769 | property->dev = dev; |
3770 | ||
f453ba04 | 3771 | if (num_values) { |
bd3f0ff9 TR |
3772 | property->values = kcalloc(num_values, sizeof(uint64_t), |
3773 | GFP_KERNEL); | |
f453ba04 DA |
3774 | if (!property->values) |
3775 | goto fail; | |
3776 | } | |
3777 | ||
6bfc56aa VS |
3778 | ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
3779 | if (ret) | |
3780 | goto fail; | |
3781 | ||
f453ba04 DA |
3782 | property->flags = flags; |
3783 | property->num_values = num_values; | |
3758b341 | 3784 | INIT_LIST_HEAD(&property->enum_list); |
f453ba04 | 3785 | |
471dd2ef | 3786 | if (name) { |
f453ba04 | 3787 | strncpy(property->name, name, DRM_PROP_NAME_LEN); |
471dd2ef VL |
3788 | property->name[DRM_PROP_NAME_LEN-1] = '\0'; |
3789 | } | |
f453ba04 DA |
3790 | |
3791 | list_add_tail(&property->head, &dev->mode_config.property_list); | |
5ea22f24 RC |
3792 | |
3793 | WARN_ON(!drm_property_type_valid(property)); | |
3794 | ||
f453ba04 DA |
3795 | return property; |
3796 | fail: | |
6bfc56aa | 3797 | kfree(property->values); |
f453ba04 DA |
3798 | kfree(property); |
3799 | return NULL; | |
3800 | } | |
3801 | EXPORT_SYMBOL(drm_property_create); | |
3802 | ||
c8e32cc1 | 3803 | /** |
2aa9d2bc | 3804 | * drm_property_create_enum - create a new enumeration property type |
c8e32cc1 DV |
3805 | * @dev: drm device |
3806 | * @flags: flags specifying the property type | |
3807 | * @name: name of the property | |
3808 | * @props: enumeration lists with property values | |
3809 | * @num_values: number of pre-defined values | |
3810 | * | |
3811 | * This creates a new generic drm property which can then be attached to a drm | |
3812 | * object with drm_object_attach_property. The returned property object must be | |
3813 | * freed with drm_property_destroy. | |
3814 | * | |
3815 | * Userspace is only allowed to set one of the predefined values for enumeration | |
3816 | * properties. | |
3817 | * | |
3818 | * Returns: | |
3819 | * A pointer to the newly created property on success, NULL on failure. | |
3820 | */ | |
4a67d391 SH |
3821 | struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
3822 | const char *name, | |
3823 | const struct drm_prop_enum_list *props, | |
3824 | int num_values) | |
3825 | { | |
3826 | struct drm_property *property; | |
3827 | int i, ret; | |
3828 | ||
3829 | flags |= DRM_MODE_PROP_ENUM; | |
3830 | ||
3831 | property = drm_property_create(dev, flags, name, num_values); | |
3832 | if (!property) | |
3833 | return NULL; | |
3834 | ||
3835 | for (i = 0; i < num_values; i++) { | |
3836 | ret = drm_property_add_enum(property, i, | |
3837 | props[i].type, | |
3838 | props[i].name); | |
3839 | if (ret) { | |
3840 | drm_property_destroy(dev, property); | |
3841 | return NULL; | |
3842 | } | |
3843 | } | |
3844 | ||
3845 | return property; | |
3846 | } | |
3847 | EXPORT_SYMBOL(drm_property_create_enum); | |
3848 | ||
c8e32cc1 | 3849 | /** |
2aa9d2bc | 3850 | * drm_property_create_bitmask - create a new bitmask property type |
c8e32cc1 DV |
3851 | * @dev: drm device |
3852 | * @flags: flags specifying the property type | |
3853 | * @name: name of the property | |
3854 | * @props: enumeration lists with property bitflags | |
295ee853 DV |
3855 | * @num_props: size of the @props array |
3856 | * @supported_bits: bitmask of all supported enumeration values | |
c8e32cc1 | 3857 | * |
295ee853 | 3858 | * This creates a new bitmask drm property which can then be attached to a drm |
c8e32cc1 DV |
3859 | * object with drm_object_attach_property. The returned property object must be |
3860 | * freed with drm_property_destroy. | |
3861 | * | |
3862 | * Compared to plain enumeration properties userspace is allowed to set any | |
3863 | * or'ed together combination of the predefined property bitflag values | |
3864 | * | |
3865 | * Returns: | |
3866 | * A pointer to the newly created property on success, NULL on failure. | |
3867 | */ | |
49e27545 RC |
3868 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
3869 | int flags, const char *name, | |
3870 | const struct drm_prop_enum_list *props, | |
7689ffb3 VS |
3871 | int num_props, |
3872 | uint64_t supported_bits) | |
49e27545 RC |
3873 | { |
3874 | struct drm_property *property; | |
7689ffb3 VS |
3875 | int i, ret, index = 0; |
3876 | int num_values = hweight64(supported_bits); | |
49e27545 RC |
3877 | |
3878 | flags |= DRM_MODE_PROP_BITMASK; | |
3879 | ||
3880 | property = drm_property_create(dev, flags, name, num_values); | |
3881 | if (!property) | |
3882 | return NULL; | |
7689ffb3 VS |
3883 | for (i = 0; i < num_props; i++) { |
3884 | if (!(supported_bits & (1ULL << props[i].type))) | |
3885 | continue; | |
49e27545 | 3886 | |
7689ffb3 VS |
3887 | if (WARN_ON(index >= num_values)) { |
3888 | drm_property_destroy(dev, property); | |
3889 | return NULL; | |
3890 | } | |
3891 | ||
3892 | ret = drm_property_add_enum(property, index++, | |
49e27545 RC |
3893 | props[i].type, |
3894 | props[i].name); | |
3895 | if (ret) { | |
3896 | drm_property_destroy(dev, property); | |
3897 | return NULL; | |
3898 | } | |
3899 | } | |
3900 | ||
3901 | return property; | |
3902 | } | |
3903 | EXPORT_SYMBOL(drm_property_create_bitmask); | |
3904 | ||
ebc44cf3 RC |
3905 | static struct drm_property *property_create_range(struct drm_device *dev, |
3906 | int flags, const char *name, | |
3907 | uint64_t min, uint64_t max) | |
3908 | { | |
3909 | struct drm_property *property; | |
3910 | ||
3911 | property = drm_property_create(dev, flags, name, 2); | |
3912 | if (!property) | |
3913 | return NULL; | |
3914 | ||
3915 | property->values[0] = min; | |
3916 | property->values[1] = max; | |
3917 | ||
3918 | return property; | |
3919 | } | |
3920 | ||
c8e32cc1 | 3921 | /** |
960cd9d4 | 3922 | * drm_property_create_range - create a new unsigned ranged property type |
c8e32cc1 DV |
3923 | * @dev: drm device |
3924 | * @flags: flags specifying the property type | |
3925 | * @name: name of the property | |
3926 | * @min: minimum value of the property | |
3927 | * @max: maximum value of the property | |
3928 | * | |
3929 | * This creates a new generic drm property which can then be attached to a drm | |
3930 | * object with drm_object_attach_property. The returned property object must be | |
3931 | * freed with drm_property_destroy. | |
3932 | * | |
960cd9d4 DV |
3933 | * Userspace is allowed to set any unsigned integer value in the (min, max) |
3934 | * range inclusive. | |
c8e32cc1 DV |
3935 | * |
3936 | * Returns: | |
3937 | * A pointer to the newly created property on success, NULL on failure. | |
3938 | */ | |
d9bc3c02 SH |
3939 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
3940 | const char *name, | |
3941 | uint64_t min, uint64_t max) | |
3942 | { | |
ebc44cf3 RC |
3943 | return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, |
3944 | name, min, max); | |
d9bc3c02 SH |
3945 | } |
3946 | EXPORT_SYMBOL(drm_property_create_range); | |
3947 | ||
960cd9d4 DV |
3948 | /** |
3949 | * drm_property_create_signed_range - create a new signed ranged property type | |
3950 | * @dev: drm device | |
3951 | * @flags: flags specifying the property type | |
3952 | * @name: name of the property | |
3953 | * @min: minimum value of the property | |
3954 | * @max: maximum value of the property | |
3955 | * | |
3956 | * This creates a new generic drm property which can then be attached to a drm | |
3957 | * object with drm_object_attach_property. The returned property object must be | |
3958 | * freed with drm_property_destroy. | |
3959 | * | |
3960 | * Userspace is allowed to set any signed integer value in the (min, max) | |
3961 | * range inclusive. | |
3962 | * | |
3963 | * Returns: | |
3964 | * A pointer to the newly created property on success, NULL on failure. | |
3965 | */ | |
ebc44cf3 RC |
3966 | struct drm_property *drm_property_create_signed_range(struct drm_device *dev, |
3967 | int flags, const char *name, | |
3968 | int64_t min, int64_t max) | |
3969 | { | |
3970 | return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, | |
3971 | name, I642U64(min), I642U64(max)); | |
3972 | } | |
3973 | EXPORT_SYMBOL(drm_property_create_signed_range); | |
3974 | ||
960cd9d4 DV |
3975 | /** |
3976 | * drm_property_create_object - create a new object property type | |
3977 | * @dev: drm device | |
3978 | * @flags: flags specifying the property type | |
3979 | * @name: name of the property | |
3980 | * @type: object type from DRM_MODE_OBJECT_* defines | |
3981 | * | |
3982 | * This creates a new generic drm property which can then be attached to a drm | |
3983 | * object with drm_object_attach_property. The returned property object must be | |
3984 | * freed with drm_property_destroy. | |
3985 | * | |
3986 | * Userspace is only allowed to set this to any property value of the given | |
3987 | * @type. Only useful for atomic properties, which is enforced. | |
3988 | * | |
3989 | * Returns: | |
3990 | * A pointer to the newly created property on success, NULL on failure. | |
3991 | */ | |
98f75de4 RC |
3992 | struct drm_property *drm_property_create_object(struct drm_device *dev, |
3993 | int flags, const char *name, uint32_t type) | |
3994 | { | |
3995 | struct drm_property *property; | |
3996 | ||
3997 | flags |= DRM_MODE_PROP_OBJECT; | |
3998 | ||
960cd9d4 DV |
3999 | if (WARN_ON(!(flags & DRM_MODE_PROP_ATOMIC))) |
4000 | return NULL; | |
4001 | ||
98f75de4 RC |
4002 | property = drm_property_create(dev, flags, name, 1); |
4003 | if (!property) | |
4004 | return NULL; | |
4005 | ||
4006 | property->values[0] = type; | |
4007 | ||
4008 | return property; | |
4009 | } | |
4010 | EXPORT_SYMBOL(drm_property_create_object); | |
4011 | ||
960cd9d4 DV |
4012 | /** |
4013 | * drm_property_create_bool - create a new boolean property type | |
4014 | * @dev: drm device | |
4015 | * @flags: flags specifying the property type | |
4016 | * @name: name of the property | |
4017 | * | |
4018 | * This creates a new generic drm property which can then be attached to a drm | |
4019 | * object with drm_object_attach_property. The returned property object must be | |
4020 | * freed with drm_property_destroy. | |
4021 | * | |
4022 | * This is implemented as a ranged property with only {0, 1} as valid values. | |
4023 | * | |
4024 | * Returns: | |
4025 | * A pointer to the newly created property on success, NULL on failure. | |
4026 | */ | |
4027 | struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags, | |
4028 | const char *name) | |
4029 | { | |
4030 | return drm_property_create_range(dev, flags, name, 0, 1); | |
4031 | } | |
4032 | EXPORT_SYMBOL(drm_property_create_bool); | |
4033 | ||
c8e32cc1 DV |
4034 | /** |
4035 | * drm_property_add_enum - add a possible value to an enumeration property | |
4036 | * @property: enumeration property to change | |
4037 | * @index: index of the new enumeration | |
4038 | * @value: value of the new enumeration | |
4039 | * @name: symbolic name of the new enumeration | |
4040 | * | |
4041 | * This functions adds enumerations to a property. | |
4042 | * | |
4043 | * It's use is deprecated, drivers should use one of the more specific helpers | |
4044 | * to directly create the property with all enumerations already attached. | |
4045 | * | |
4046 | * Returns: | |
4047 | * Zero on success, error code on failure. | |
4048 | */ | |
f453ba04 DA |
4049 | int drm_property_add_enum(struct drm_property *property, int index, |
4050 | uint64_t value, const char *name) | |
4051 | { | |
4052 | struct drm_property_enum *prop_enum; | |
4053 | ||
5ea22f24 RC |
4054 | if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
4055 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) | |
49e27545 RC |
4056 | return -EINVAL; |
4057 | ||
4058 | /* | |
4059 | * Bitmask enum properties have the additional constraint of values | |
4060 | * from 0 to 63 | |
4061 | */ | |
5ea22f24 RC |
4062 | if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && |
4063 | (value > 63)) | |
f453ba04 DA |
4064 | return -EINVAL; |
4065 | ||
3758b341 DV |
4066 | if (!list_empty(&property->enum_list)) { |
4067 | list_for_each_entry(prop_enum, &property->enum_list, head) { | |
f453ba04 DA |
4068 | if (prop_enum->value == value) { |
4069 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
4070 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
4071 | return 0; | |
4072 | } | |
4073 | } | |
4074 | } | |
4075 | ||
4076 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); | |
4077 | if (!prop_enum) | |
4078 | return -ENOMEM; | |
4079 | ||
4080 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
4081 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
4082 | prop_enum->value = value; | |
4083 | ||
4084 | property->values[index] = value; | |
3758b341 | 4085 | list_add_tail(&prop_enum->head, &property->enum_list); |
f453ba04 DA |
4086 | return 0; |
4087 | } | |
4088 | EXPORT_SYMBOL(drm_property_add_enum); | |
4089 | ||
c8e32cc1 DV |
4090 | /** |
4091 | * drm_property_destroy - destroy a drm property | |
4092 | * @dev: drm device | |
4093 | * @property: property to destry | |
4094 | * | |
4095 | * This function frees a property including any attached resources like | |
4096 | * enumeration values. | |
4097 | */ | |
f453ba04 DA |
4098 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) |
4099 | { | |
4100 | struct drm_property_enum *prop_enum, *pt; | |
4101 | ||
3758b341 | 4102 | list_for_each_entry_safe(prop_enum, pt, &property->enum_list, head) { |
f453ba04 DA |
4103 | list_del(&prop_enum->head); |
4104 | kfree(prop_enum); | |
4105 | } | |
4106 | ||
4107 | if (property->num_values) | |
4108 | kfree(property->values); | |
7c8f6d25 | 4109 | drm_mode_object_unregister(dev, &property->base); |
f453ba04 DA |
4110 | list_del(&property->head); |
4111 | kfree(property); | |
4112 | } | |
4113 | EXPORT_SYMBOL(drm_property_destroy); | |
4114 | ||
c8e32cc1 DV |
4115 | /** |
4116 | * drm_object_attach_property - attach a property to a modeset object | |
4117 | * @obj: drm modeset object | |
4118 | * @property: property to attach | |
4119 | * @init_val: initial value of the property | |
4120 | * | |
4121 | * This attaches the given property to the modeset object with the given initial | |
4122 | * value. Currently this function cannot fail since the properties are stored in | |
4123 | * a statically sized array. | |
4124 | */ | |
c543188a PZ |
4125 | void drm_object_attach_property(struct drm_mode_object *obj, |
4126 | struct drm_property *property, | |
4127 | uint64_t init_val) | |
4128 | { | |
7f88a9be | 4129 | int count = obj->properties->count; |
c543188a | 4130 | |
7f88a9be PZ |
4131 | if (count == DRM_OBJECT_MAX_PROPERTY) { |
4132 | WARN(1, "Failed to attach object property (type: 0x%x). Please " | |
4133 | "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " | |
4134 | "you see this message on the same object type.\n", | |
4135 | obj->type); | |
4136 | return; | |
c543188a PZ |
4137 | } |
4138 | ||
b17cd757 | 4139 | obj->properties->properties[count] = property; |
7f88a9be PZ |
4140 | obj->properties->values[count] = init_val; |
4141 | obj->properties->count++; | |
88a48e29 RC |
4142 | if (property->flags & DRM_MODE_PROP_ATOMIC) |
4143 | obj->properties->atomic_count++; | |
c543188a PZ |
4144 | } |
4145 | EXPORT_SYMBOL(drm_object_attach_property); | |
4146 | ||
c8e32cc1 DV |
4147 | /** |
4148 | * drm_object_property_set_value - set the value of a property | |
4149 | * @obj: drm mode object to set property value for | |
4150 | * @property: property to set | |
4151 | * @val: value the property should be set to | |
4152 | * | |
4153 | * This functions sets a given property on a given object. This function only | |
4154 | * changes the software state of the property, it does not call into the | |
4155 | * driver's ->set_property callback. | |
4156 | * | |
4157 | * Returns: | |
4158 | * Zero on success, error code on failure. | |
4159 | */ | |
c543188a PZ |
4160 | int drm_object_property_set_value(struct drm_mode_object *obj, |
4161 | struct drm_property *property, uint64_t val) | |
4162 | { | |
4163 | int i; | |
4164 | ||
7f88a9be | 4165 | for (i = 0; i < obj->properties->count; i++) { |
b17cd757 | 4166 | if (obj->properties->properties[i] == property) { |
c543188a PZ |
4167 | obj->properties->values[i] = val; |
4168 | return 0; | |
4169 | } | |
4170 | } | |
4171 | ||
4172 | return -EINVAL; | |
4173 | } | |
4174 | EXPORT_SYMBOL(drm_object_property_set_value); | |
4175 | ||
c8e32cc1 DV |
4176 | /** |
4177 | * drm_object_property_get_value - retrieve the value of a property | |
4178 | * @obj: drm mode object to get property value from | |
4179 | * @property: property to retrieve | |
4180 | * @val: storage for the property value | |
4181 | * | |
4182 | * This function retrieves the softare state of the given property for the given | |
4183 | * property. Since there is no driver callback to retrieve the current property | |
4184 | * value this might be out of sync with the hardware, depending upon the driver | |
4185 | * and property. | |
4186 | * | |
4187 | * Returns: | |
4188 | * Zero on success, error code on failure. | |
4189 | */ | |
c543188a PZ |
4190 | int drm_object_property_get_value(struct drm_mode_object *obj, |
4191 | struct drm_property *property, uint64_t *val) | |
4192 | { | |
4193 | int i; | |
4194 | ||
88a48e29 RC |
4195 | /* read-only properties bypass atomic mechanism and still store |
4196 | * their value in obj->properties->values[].. mostly to avoid | |
4197 | * having to deal w/ EDID and similar props in atomic paths: | |
4198 | */ | |
4199 | if (drm_core_check_feature(property->dev, DRIVER_ATOMIC) && | |
4200 | !(property->flags & DRM_MODE_PROP_IMMUTABLE)) | |
4201 | return drm_atomic_get_property(obj, property, val); | |
4202 | ||
7f88a9be | 4203 | for (i = 0; i < obj->properties->count; i++) { |
b17cd757 | 4204 | if (obj->properties->properties[i] == property) { |
c543188a PZ |
4205 | *val = obj->properties->values[i]; |
4206 | return 0; | |
4207 | } | |
4208 | } | |
4209 | ||
4210 | return -EINVAL; | |
4211 | } | |
4212 | EXPORT_SYMBOL(drm_object_property_get_value); | |
4213 | ||
c8e32cc1 | 4214 | /** |
1a498633 | 4215 | * drm_mode_getproperty_ioctl - get the property metadata |
c8e32cc1 DV |
4216 | * @dev: DRM device |
4217 | * @data: ioctl data | |
4218 | * @file_priv: DRM file info | |
4219 | * | |
1a498633 DV |
4220 | * This function retrieves the metadata for a given property, like the different |
4221 | * possible values for an enum property or the limits for a range property. | |
4222 | * | |
4223 | * Blob properties are special | |
c8e32cc1 DV |
4224 | * |
4225 | * Called by the user via ioctl. | |
4226 | * | |
4227 | * Returns: | |
1a498633 | 4228 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4229 | */ |
f453ba04 DA |
4230 | int drm_mode_getproperty_ioctl(struct drm_device *dev, |
4231 | void *data, struct drm_file *file_priv) | |
4232 | { | |
f453ba04 DA |
4233 | struct drm_mode_get_property *out_resp = data; |
4234 | struct drm_property *property; | |
4235 | int enum_count = 0; | |
f453ba04 DA |
4236 | int value_count = 0; |
4237 | int ret = 0, i; | |
4238 | int copied; | |
4239 | struct drm_property_enum *prop_enum; | |
4240 | struct drm_mode_property_enum __user *enum_ptr; | |
f453ba04 | 4241 | uint64_t __user *values_ptr; |
f453ba04 | 4242 | |
fb3b06c8 DA |
4243 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4244 | return -EINVAL; | |
4245 | ||
84849903 | 4246 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4247 | property = drm_property_find(dev, out_resp->prop_id); |
4248 | if (!property) { | |
f27657f2 | 4249 | ret = -ENOENT; |
f453ba04 DA |
4250 | goto done; |
4251 | } | |
f453ba04 | 4252 | |
5ea22f24 RC |
4253 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
4254 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
3758b341 | 4255 | list_for_each_entry(prop_enum, &property->enum_list, head) |
f453ba04 | 4256 | enum_count++; |
f453ba04 DA |
4257 | } |
4258 | ||
4259 | value_count = property->num_values; | |
4260 | ||
4261 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); | |
4262 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; | |
4263 | out_resp->flags = property->flags; | |
4264 | ||
4265 | if ((out_resp->count_values >= value_count) && value_count) { | |
81f6c7f8 | 4266 | values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; |
f453ba04 DA |
4267 | for (i = 0; i < value_count; i++) { |
4268 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { | |
4269 | ret = -EFAULT; | |
4270 | goto done; | |
4271 | } | |
4272 | } | |
4273 | } | |
4274 | out_resp->count_values = value_count; | |
4275 | ||
5ea22f24 RC |
4276 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
4277 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
f453ba04 DA |
4278 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
4279 | copied = 0; | |
81f6c7f8 | 4280 | enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; |
3758b341 | 4281 | list_for_each_entry(prop_enum, &property->enum_list, head) { |
f453ba04 DA |
4282 | |
4283 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { | |
4284 | ret = -EFAULT; | |
4285 | goto done; | |
4286 | } | |
4287 | ||
4288 | if (copy_to_user(&enum_ptr[copied].name, | |
4289 | &prop_enum->name, DRM_PROP_NAME_LEN)) { | |
4290 | ret = -EFAULT; | |
4291 | goto done; | |
4292 | } | |
4293 | copied++; | |
4294 | } | |
4295 | } | |
4296 | out_resp->count_enum_blobs = enum_count; | |
4297 | } | |
4298 | ||
3758b341 DV |
4299 | /* |
4300 | * NOTE: The idea seems to have been to use this to read all the blob | |
4301 | * property values. But nothing ever added them to the corresponding | |
4302 | * list, userspace always used the special-purpose get_blob ioctl to | |
4303 | * read the value for a blob property. It also doesn't make a lot of | |
4304 | * sense to return values here when everything else is just metadata for | |
4305 | * the property itself. | |
4306 | */ | |
4307 | if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) | |
4308 | out_resp->count_enum_blobs = 0; | |
f453ba04 | 4309 | done: |
84849903 | 4310 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4311 | return ret; |
4312 | } | |
4313 | ||
152ef5fa DV |
4314 | static void drm_property_free_blob(struct kref *kref) |
4315 | { | |
4316 | struct drm_property_blob *blob = | |
4317 | container_of(kref, struct drm_property_blob, base.refcount); | |
4318 | ||
4319 | mutex_lock(&blob->dev->mode_config.blob_lock); | |
4320 | list_del(&blob->head_global); | |
4321 | mutex_unlock(&blob->dev->mode_config.blob_lock); | |
4322 | ||
4323 | drm_mode_object_unregister(blob->dev, &blob->base); | |
4324 | ||
4325 | kfree(blob); | |
4326 | } | |
4327 | ||
99531d9b DS |
4328 | /** |
4329 | * drm_property_create_blob - Create new blob property | |
4330 | * | |
4331 | * Creates a new blob property for a specified DRM device, optionally | |
4332 | * copying data. | |
4333 | * | |
4334 | * @dev: DRM device to create property for | |
4335 | * @length: Length to allocate for blob data | |
4336 | * @data: If specified, copies data into blob | |
10e8cb7e DS |
4337 | * |
4338 | * Returns: | |
4339 | * New blob property with a single reference on success, or an ERR_PTR | |
4340 | * value on failure. | |
99531d9b | 4341 | */ |
6bcacf51 | 4342 | struct drm_property_blob * |
ecbbe59b | 4343 | drm_property_create_blob(struct drm_device *dev, size_t length, |
12e6cecd | 4344 | const void *data) |
f453ba04 DA |
4345 | { |
4346 | struct drm_property_blob *blob; | |
6bfc56aa | 4347 | int ret; |
f453ba04 | 4348 | |
9ac0934b | 4349 | if (!length || length > ULONG_MAX - sizeof(struct drm_property_blob)) |
10e8cb7e | 4350 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
4351 | |
4352 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); | |
4353 | if (!blob) | |
10e8cb7e | 4354 | return ERR_PTR(-ENOMEM); |
f453ba04 | 4355 | |
e2f5d2ea DS |
4356 | /* This must be explicitly initialised, so we can safely call list_del |
4357 | * on it in the removal handler, even if it isn't in a file list. */ | |
4358 | INIT_LIST_HEAD(&blob->head_file); | |
8fb6e7a5 | 4359 | blob->length = length; |
6bcacf51 | 4360 | blob->dev = dev; |
8fb6e7a5 | 4361 | |
99531d9b DS |
4362 | if (data) |
4363 | memcpy(blob->data, data, length); | |
8fb6e7a5 | 4364 | |
152ef5fa DV |
4365 | ret = drm_mode_object_get_reg(dev, &blob->base, DRM_MODE_OBJECT_BLOB, |
4366 | true, drm_property_free_blob); | |
6bfc56aa VS |
4367 | if (ret) { |
4368 | kfree(blob); | |
10e8cb7e | 4369 | return ERR_PTR(-EINVAL); |
6bfc56aa VS |
4370 | } |
4371 | ||
152ef5fa | 4372 | mutex_lock(&dev->mode_config.blob_lock); |
e2f5d2ea DS |
4373 | list_add_tail(&blob->head_global, |
4374 | &dev->mode_config.property_blob_list); | |
8fb6e7a5 | 4375 | mutex_unlock(&dev->mode_config.blob_lock); |
f453ba04 | 4376 | |
f453ba04 DA |
4377 | return blob; |
4378 | } | |
6bcacf51 | 4379 | EXPORT_SYMBOL(drm_property_create_blob); |
f453ba04 | 4380 | |
6bcacf51 DS |
4381 | /** |
4382 | * drm_property_unreference_blob - Unreference a blob property | |
4383 | * | |
4384 | * Drop a reference on a blob property. May free the object. | |
4385 | * | |
f102c16e | 4386 | * @blob: Pointer to blob property |
6bcacf51 DS |
4387 | */ |
4388 | void drm_property_unreference_blob(struct drm_property_blob *blob) | |
4389 | { | |
6bcacf51 DS |
4390 | if (!blob) |
4391 | return; | |
4392 | ||
152ef5fa | 4393 | drm_mode_object_unreference(&blob->base); |
6bcacf51 DS |
4394 | } |
4395 | EXPORT_SYMBOL(drm_property_unreference_blob); | |
4396 | ||
e2f5d2ea DS |
4397 | /** |
4398 | * drm_property_destroy_user_blobs - destroy all blobs created by this client | |
4399 | * @dev: DRM device | |
4400 | * @file_priv: destroy all blobs owned by this file handle | |
4401 | */ | |
4402 | void drm_property_destroy_user_blobs(struct drm_device *dev, | |
4403 | struct drm_file *file_priv) | |
4404 | { | |
4405 | struct drm_property_blob *blob, *bt; | |
4406 | ||
152ef5fa DV |
4407 | /* |
4408 | * When the file gets released that means no one else can access the | |
4409 | * blob list any more, so no need to grab dev->blob_lock. | |
4410 | */ | |
e2f5d2ea DS |
4411 | list_for_each_entry_safe(blob, bt, &file_priv->blobs, head_file) { |
4412 | list_del_init(&blob->head_file); | |
152ef5fa | 4413 | drm_property_unreference_blob(blob); |
e2f5d2ea | 4414 | } |
e2f5d2ea DS |
4415 | } |
4416 | ||
6bcacf51 DS |
4417 | /** |
4418 | * drm_property_reference_blob - Take a reference on an existing property | |
4419 | * | |
4420 | * Take a new reference on an existing blob property. | |
4421 | * | |
f102c16e | 4422 | * @blob: Pointer to blob property |
6bcacf51 DS |
4423 | */ |
4424 | struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob) | |
4425 | { | |
152ef5fa | 4426 | drm_mode_object_reference(&blob->base); |
6bcacf51 DS |
4427 | return blob; |
4428 | } | |
4429 | EXPORT_SYMBOL(drm_property_reference_blob); | |
4430 | ||
6bcacf51 DS |
4431 | /** |
4432 | * drm_property_lookup_blob - look up a blob property and take a reference | |
4433 | * @dev: drm device | |
4434 | * @id: id of the blob property | |
4435 | * | |
4436 | * If successful, this takes an additional reference to the blob property. | |
4437 | * callers need to make sure to eventually unreference the returned property | |
4438 | * again, using @drm_property_unreference_blob. | |
4439 | */ | |
4440 | struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev, | |
4441 | uint32_t id) | |
4442 | { | |
152ef5fa DV |
4443 | struct drm_mode_object *obj; |
4444 | struct drm_property_blob *blob = NULL; | |
6bcacf51 | 4445 | |
152ef5fa DV |
4446 | obj = _object_find(dev, id, DRM_MODE_OBJECT_BLOB); |
4447 | if (obj) | |
4448 | blob = obj_to_blob(obj); | |
6bcacf51 DS |
4449 | return blob; |
4450 | } | |
4451 | EXPORT_SYMBOL(drm_property_lookup_blob); | |
4452 | ||
d2ed3436 DS |
4453 | /** |
4454 | * drm_property_replace_global_blob - atomically replace existing blob property | |
4455 | * @dev: drm device | |
4456 | * @replace: location of blob property pointer to be replaced | |
4457 | * @length: length of data for new blob, or 0 for no data | |
4458 | * @data: content for new blob, or NULL for no data | |
4459 | * @obj_holds_id: optional object for property holding blob ID | |
4460 | * @prop_holds_id: optional property holding blob ID | |
4461 | * @return 0 on success or error on failure | |
4462 | * | |
4463 | * This function will atomically replace a global property in the blob list, | |
4464 | * optionally updating a property which holds the ID of that property. It is | |
4465 | * guaranteed to be atomic: no caller will be allowed to see intermediate | |
4466 | * results, and either the entire operation will succeed and clean up the | |
4467 | * previous property, or it will fail and the state will be unchanged. | |
4468 | * | |
4469 | * If length is 0 or data is NULL, no new blob will be created, and the holding | |
4470 | * property, if specified, will be set to 0. | |
4471 | * | |
4472 | * Access to the replace pointer is assumed to be protected by the caller, e.g. | |
4473 | * by holding the relevant modesetting object lock for its parent. | |
4474 | * | |
4475 | * For example, a drm_connector has a 'PATH' property, which contains the ID | |
4476 | * of a blob property with the value of the MST path information. Calling this | |
4477 | * function with replace pointing to the connector's path_blob_ptr, length and | |
4478 | * data set for the new path information, obj_holds_id set to the connector's | |
4479 | * base object, and prop_holds_id set to the path property name, will perform | |
4480 | * a completely atomic update. The access to path_blob_ptr is protected by the | |
4481 | * caller holding a lock on the connector. | |
4482 | */ | |
4483 | static int drm_property_replace_global_blob(struct drm_device *dev, | |
4484 | struct drm_property_blob **replace, | |
4485 | size_t length, | |
4486 | const void *data, | |
4487 | struct drm_mode_object *obj_holds_id, | |
4488 | struct drm_property *prop_holds_id) | |
4489 | { | |
4490 | struct drm_property_blob *new_blob = NULL; | |
4491 | struct drm_property_blob *old_blob = NULL; | |
4492 | int ret; | |
4493 | ||
4494 | WARN_ON(replace == NULL); | |
4495 | ||
4496 | old_blob = *replace; | |
4497 | ||
4498 | if (length && data) { | |
4499 | new_blob = drm_property_create_blob(dev, length, data); | |
10e8cb7e DS |
4500 | if (IS_ERR(new_blob)) |
4501 | return PTR_ERR(new_blob); | |
d2ed3436 DS |
4502 | } |
4503 | ||
4504 | /* This does not need to be synchronised with blob_lock, as the | |
4505 | * get_properties ioctl locks all modesetting objects, and | |
4506 | * obj_holds_id must be locked before calling here, so we cannot | |
4507 | * have its value out of sync with the list membership modified | |
4508 | * below under blob_lock. */ | |
4509 | if (obj_holds_id) { | |
4510 | ret = drm_object_property_set_value(obj_holds_id, | |
4511 | prop_holds_id, | |
4512 | new_blob ? | |
4513 | new_blob->base.id : 0); | |
4514 | if (ret != 0) | |
4515 | goto err_created; | |
4516 | } | |
4517 | ||
ec530829 | 4518 | drm_property_unreference_blob(old_blob); |
d2ed3436 DS |
4519 | *replace = new_blob; |
4520 | ||
4521 | return 0; | |
4522 | ||
4523 | err_created: | |
6bcacf51 | 4524 | drm_property_unreference_blob(new_blob); |
d2ed3436 DS |
4525 | return ret; |
4526 | } | |
4527 | ||
c8e32cc1 DV |
4528 | /** |
4529 | * drm_mode_getblob_ioctl - get the contents of a blob property value | |
4530 | * @dev: DRM device | |
4531 | * @data: ioctl data | |
4532 | * @file_priv: DRM file info | |
4533 | * | |
4534 | * This function retrieves the contents of a blob property. The value stored in | |
4535 | * an object's blob property is just a normal modeset object id. | |
4536 | * | |
4537 | * Called by the user via ioctl. | |
4538 | * | |
4539 | * Returns: | |
1a498633 | 4540 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4541 | */ |
f453ba04 DA |
4542 | int drm_mode_getblob_ioctl(struct drm_device *dev, |
4543 | void *data, struct drm_file *file_priv) | |
4544 | { | |
f453ba04 DA |
4545 | struct drm_mode_get_blob *out_resp = data; |
4546 | struct drm_property_blob *blob; | |
4547 | int ret = 0; | |
81f6c7f8 | 4548 | void __user *blob_ptr; |
f453ba04 | 4549 | |
fb3b06c8 DA |
4550 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4551 | return -EINVAL; | |
4552 | ||
152ef5fa DV |
4553 | blob = drm_property_lookup_blob(dev, out_resp->blob_id); |
4554 | if (!blob) | |
4555 | return -ENOENT; | |
f453ba04 DA |
4556 | |
4557 | if (out_resp->length == blob->length) { | |
81f6c7f8 | 4558 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
4dfd909f | 4559 | if (copy_to_user(blob_ptr, blob->data, blob->length)) { |
f453ba04 | 4560 | ret = -EFAULT; |
152ef5fa | 4561 | goto unref; |
f453ba04 DA |
4562 | } |
4563 | } | |
4564 | out_resp->length = blob->length; | |
152ef5fa DV |
4565 | unref: |
4566 | drm_property_unreference_blob(blob); | |
f453ba04 | 4567 | |
f453ba04 DA |
4568 | return ret; |
4569 | } | |
4570 | ||
e2f5d2ea DS |
4571 | /** |
4572 | * drm_mode_createblob_ioctl - create a new blob property | |
4573 | * @dev: DRM device | |
4574 | * @data: ioctl data | |
4575 | * @file_priv: DRM file info | |
4576 | * | |
4577 | * This function creates a new blob property with user-defined values. In order | |
4578 | * to give us sensible validation and checking when creating, rather than at | |
4579 | * every potential use, we also require a type to be provided upfront. | |
4580 | * | |
4581 | * Called by the user via ioctl. | |
4582 | * | |
4583 | * Returns: | |
4584 | * Zero on success, negative errno on failure. | |
4585 | */ | |
4586 | int drm_mode_createblob_ioctl(struct drm_device *dev, | |
4587 | void *data, struct drm_file *file_priv) | |
4588 | { | |
4589 | struct drm_mode_create_blob *out_resp = data; | |
4590 | struct drm_property_blob *blob; | |
4591 | void __user *blob_ptr; | |
4592 | int ret = 0; | |
4593 | ||
4594 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4595 | return -EINVAL; | |
4596 | ||
4597 | blob = drm_property_create_blob(dev, out_resp->length, NULL); | |
4598 | if (IS_ERR(blob)) | |
4599 | return PTR_ERR(blob); | |
4600 | ||
4601 | blob_ptr = (void __user *)(unsigned long)out_resp->data; | |
4602 | if (copy_from_user(blob->data, blob_ptr, out_resp->length)) { | |
4603 | ret = -EFAULT; | |
4604 | goto out_blob; | |
4605 | } | |
4606 | ||
4607 | /* Dropping the lock between create_blob and our access here is safe | |
4608 | * as only the same file_priv can remove the blob; at this point, it is | |
4609 | * not associated with any file_priv. */ | |
4610 | mutex_lock(&dev->mode_config.blob_lock); | |
4611 | out_resp->blob_id = blob->base.id; | |
8731b269 | 4612 | list_add_tail(&blob->head_file, &file_priv->blobs); |
e2f5d2ea DS |
4613 | mutex_unlock(&dev->mode_config.blob_lock); |
4614 | ||
4615 | return 0; | |
4616 | ||
4617 | out_blob: | |
4618 | drm_property_unreference_blob(blob); | |
4619 | return ret; | |
4620 | } | |
4621 | ||
4622 | /** | |
4623 | * drm_mode_destroyblob_ioctl - destroy a user blob property | |
4624 | * @dev: DRM device | |
4625 | * @data: ioctl data | |
4626 | * @file_priv: DRM file info | |
4627 | * | |
4628 | * Destroy an existing user-defined blob property. | |
4629 | * | |
4630 | * Called by the user via ioctl. | |
4631 | * | |
4632 | * Returns: | |
4633 | * Zero on success, negative errno on failure. | |
4634 | */ | |
4635 | int drm_mode_destroyblob_ioctl(struct drm_device *dev, | |
4636 | void *data, struct drm_file *file_priv) | |
4637 | { | |
4638 | struct drm_mode_destroy_blob *out_resp = data; | |
4639 | struct drm_property_blob *blob = NULL, *bt; | |
4640 | bool found = false; | |
4641 | int ret = 0; | |
4642 | ||
4643 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4644 | return -EINVAL; | |
4645 | ||
152ef5fa DV |
4646 | blob = drm_property_lookup_blob(dev, out_resp->blob_id); |
4647 | if (!blob) | |
4648 | return -ENOENT; | |
e2f5d2ea | 4649 | |
152ef5fa | 4650 | mutex_lock(&dev->mode_config.blob_lock); |
e2f5d2ea DS |
4651 | /* Ensure the property was actually created by this user. */ |
4652 | list_for_each_entry(bt, &file_priv->blobs, head_file) { | |
4653 | if (bt == blob) { | |
4654 | found = true; | |
4655 | break; | |
4656 | } | |
4657 | } | |
4658 | ||
4659 | if (!found) { | |
4660 | ret = -EPERM; | |
4661 | goto err; | |
4662 | } | |
4663 | ||
4664 | /* We must drop head_file here, because we may not be the last | |
4665 | * reference on the blob. */ | |
4666 | list_del_init(&blob->head_file); | |
e2f5d2ea DS |
4667 | mutex_unlock(&dev->mode_config.blob_lock); |
4668 | ||
152ef5fa DV |
4669 | /* One reference from lookup, and one from the filp. */ |
4670 | drm_property_unreference_blob(blob); | |
4671 | drm_property_unreference_blob(blob); | |
4672 | ||
e2f5d2ea DS |
4673 | return 0; |
4674 | ||
4675 | err: | |
4676 | mutex_unlock(&dev->mode_config.blob_lock); | |
152ef5fa DV |
4677 | drm_property_unreference_blob(blob); |
4678 | ||
e2f5d2ea DS |
4679 | return ret; |
4680 | } | |
4681 | ||
cc7096fb DA |
4682 | /** |
4683 | * drm_mode_connector_set_path_property - set tile property on connector | |
4684 | * @connector: connector to set property on. | |
d2ed3436 | 4685 | * @path: path to use for property; must not be NULL. |
cc7096fb DA |
4686 | * |
4687 | * This creates a property to expose to userspace to specify a | |
4688 | * connector path. This is mainly used for DisplayPort MST where | |
4689 | * connectors have a topology and we want to allow userspace to give | |
4690 | * them more meaningful names. | |
4691 | * | |
4692 | * Returns: | |
1a498633 | 4693 | * Zero on success, negative errno on failure. |
cc7096fb | 4694 | */ |
43aba7eb | 4695 | int drm_mode_connector_set_path_property(struct drm_connector *connector, |
12e6cecd | 4696 | const char *path) |
43aba7eb DA |
4697 | { |
4698 | struct drm_device *dev = connector->dev; | |
ecbbe59b | 4699 | int ret; |
43aba7eb | 4700 | |
d2ed3436 DS |
4701 | ret = drm_property_replace_global_blob(dev, |
4702 | &connector->path_blob_ptr, | |
4703 | strlen(path) + 1, | |
4704 | path, | |
4705 | &connector->base, | |
4706 | dev->mode_config.path_property); | |
43aba7eb DA |
4707 | return ret; |
4708 | } | |
4709 | EXPORT_SYMBOL(drm_mode_connector_set_path_property); | |
4710 | ||
6f134d7b DA |
4711 | /** |
4712 | * drm_mode_connector_set_tile_property - set tile property on connector | |
4713 | * @connector: connector to set property on. | |
4714 | * | |
4715 | * This looks up the tile information for a connector, and creates a | |
4716 | * property for userspace to parse if it exists. The property is of | |
4717 | * the form of 8 integers using ':' as a separator. | |
4718 | * | |
4719 | * Returns: | |
4720 | * Zero on success, errno on failure. | |
4721 | */ | |
4722 | int drm_mode_connector_set_tile_property(struct drm_connector *connector) | |
4723 | { | |
4724 | struct drm_device *dev = connector->dev; | |
6f134d7b | 4725 | char tile[256]; |
d2ed3436 | 4726 | int ret; |
6f134d7b DA |
4727 | |
4728 | if (!connector->has_tile) { | |
d2ed3436 DS |
4729 | ret = drm_property_replace_global_blob(dev, |
4730 | &connector->tile_blob_ptr, | |
4731 | 0, | |
4732 | NULL, | |
4733 | &connector->base, | |
4734 | dev->mode_config.tile_property); | |
6f134d7b DA |
4735 | return ret; |
4736 | } | |
4737 | ||
4738 | snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d", | |
4739 | connector->tile_group->id, connector->tile_is_single_monitor, | |
4740 | connector->num_h_tile, connector->num_v_tile, | |
4741 | connector->tile_h_loc, connector->tile_v_loc, | |
4742 | connector->tile_h_size, connector->tile_v_size); | |
6f134d7b | 4743 | |
d2ed3436 DS |
4744 | ret = drm_property_replace_global_blob(dev, |
4745 | &connector->tile_blob_ptr, | |
4746 | strlen(tile) + 1, | |
4747 | tile, | |
4748 | &connector->base, | |
4749 | dev->mode_config.tile_property); | |
6f134d7b DA |
4750 | return ret; |
4751 | } | |
4752 | EXPORT_SYMBOL(drm_mode_connector_set_tile_property); | |
4753 | ||
c8e32cc1 DV |
4754 | /** |
4755 | * drm_mode_connector_update_edid_property - update the edid property of a connector | |
4756 | * @connector: drm connector | |
4757 | * @edid: new value of the edid property | |
4758 | * | |
4759 | * This function creates a new blob modeset object and assigns its id to the | |
4760 | * connector's edid property. | |
4761 | * | |
4762 | * Returns: | |
1a498633 | 4763 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4764 | */ |
f453ba04 | 4765 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
12e6cecd | 4766 | const struct edid *edid) |
f453ba04 DA |
4767 | { |
4768 | struct drm_device *dev = connector->dev; | |
d2ed3436 | 4769 | size_t size = 0; |
ecbbe59b | 4770 | int ret; |
f453ba04 | 4771 | |
4cf2b281 TW |
4772 | /* ignore requests to set edid when overridden */ |
4773 | if (connector->override_edid) | |
4774 | return 0; | |
4775 | ||
d2ed3436 | 4776 | if (edid) |
e24ff467 | 4777 | size = EDID_LENGTH * (1 + edid->extensions); |
f453ba04 | 4778 | |
d2ed3436 DS |
4779 | ret = drm_property_replace_global_blob(dev, |
4780 | &connector->edid_blob_ptr, | |
4781 | size, | |
4782 | edid, | |
4783 | &connector->base, | |
4784 | dev->mode_config.edid_property); | |
f453ba04 DA |
4785 | return ret; |
4786 | } | |
4787 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); | |
4788 | ||
3843e71f RC |
4789 | /* Some properties could refer to dynamic refcnt'd objects, or things that |
4790 | * need special locking to handle lifetime issues (ie. to ensure the prop | |
4791 | * value doesn't become invalid part way through the property update due to | |
4792 | * race). The value returned by reference via 'obj' should be passed back | |
4793 | * to drm_property_change_valid_put() after the property is set (and the | |
4794 | * object to which the property is attached has a chance to take it's own | |
4795 | * reference). | |
4796 | */ | |
d34f20d6 | 4797 | bool drm_property_change_valid_get(struct drm_property *property, |
3843e71f | 4798 | uint64_t value, struct drm_mode_object **ref) |
26a34815 | 4799 | { |
2ca651d1 TR |
4800 | int i; |
4801 | ||
26a34815 PZ |
4802 | if (property->flags & DRM_MODE_PROP_IMMUTABLE) |
4803 | return false; | |
5ea22f24 | 4804 | |
3843e71f RC |
4805 | *ref = NULL; |
4806 | ||
5ea22f24 | 4807 | if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) { |
26a34815 PZ |
4808 | if (value < property->values[0] || value > property->values[1]) |
4809 | return false; | |
4810 | return true; | |
ebc44cf3 RC |
4811 | } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) { |
4812 | int64_t svalue = U642I64(value); | |
4dfd909f | 4813 | |
ebc44cf3 RC |
4814 | if (svalue < U642I64(property->values[0]) || |
4815 | svalue > U642I64(property->values[1])) | |
4816 | return false; | |
4817 | return true; | |
5ea22f24 | 4818 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
592c20ee | 4819 | uint64_t valid_mask = 0; |
4dfd909f | 4820 | |
49e27545 RC |
4821 | for (i = 0; i < property->num_values; i++) |
4822 | valid_mask |= (1ULL << property->values[i]); | |
4823 | return !(value & ~valid_mask); | |
5ea22f24 | 4824 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
6bcacf51 DS |
4825 | struct drm_property_blob *blob; |
4826 | ||
4827 | if (value == 0) | |
4828 | return true; | |
4829 | ||
4830 | blob = drm_property_lookup_blob(property->dev, value); | |
4831 | if (blob) { | |
4832 | *ref = &blob->base; | |
4833 | return true; | |
4834 | } else { | |
4835 | return false; | |
4836 | } | |
98f75de4 | 4837 | } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { |
98f75de4 RC |
4838 | /* a zero value for an object property translates to null: */ |
4839 | if (value == 0) | |
4840 | return true; | |
3843e71f | 4841 | |
1e8985a8 TV |
4842 | *ref = _object_find(property->dev, value, property->values[0]); |
4843 | return *ref != NULL; | |
26a34815 | 4844 | } |
2ca651d1 TR |
4845 | |
4846 | for (i = 0; i < property->num_values; i++) | |
4847 | if (property->values[i] == value) | |
4848 | return true; | |
4849 | return false; | |
26a34815 PZ |
4850 | } |
4851 | ||
d34f20d6 | 4852 | void drm_property_change_valid_put(struct drm_property *property, |
3843e71f RC |
4853 | struct drm_mode_object *ref) |
4854 | { | |
4855 | if (!ref) | |
4856 | return; | |
4857 | ||
4858 | if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { | |
027b3f8b | 4859 | drm_mode_object_unreference(ref); |
da9b2a38 DS |
4860 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) |
4861 | drm_property_unreference_blob(obj_to_blob(ref)); | |
3843e71f RC |
4862 | } |
4863 | ||
c8e32cc1 DV |
4864 | /** |
4865 | * drm_mode_connector_property_set_ioctl - set the current value of a connector property | |
4866 | * @dev: DRM device | |
4867 | * @data: ioctl data | |
4868 | * @file_priv: DRM file info | |
4869 | * | |
4870 | * This function sets the current value for a connectors's property. It also | |
4871 | * calls into a driver's ->set_property callback to update the hardware state | |
4872 | * | |
4873 | * Called by the user via ioctl. | |
4874 | * | |
4875 | * Returns: | |
1a498633 | 4876 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4877 | */ |
f453ba04 DA |
4878 | int drm_mode_connector_property_set_ioctl(struct drm_device *dev, |
4879 | void *data, struct drm_file *file_priv) | |
4880 | { | |
0057d8dd PZ |
4881 | struct drm_mode_connector_set_property *conn_set_prop = data; |
4882 | struct drm_mode_obj_set_property obj_set_prop = { | |
4883 | .value = conn_set_prop->value, | |
4884 | .prop_id = conn_set_prop->prop_id, | |
4885 | .obj_id = conn_set_prop->connector_id, | |
4886 | .obj_type = DRM_MODE_OBJECT_CONNECTOR | |
4887 | }; | |
fb3b06c8 | 4888 | |
0057d8dd PZ |
4889 | /* It does all the locking and checking we need */ |
4890 | return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); | |
f453ba04 DA |
4891 | } |
4892 | ||
c543188a PZ |
4893 | static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, |
4894 | struct drm_property *property, | |
4895 | uint64_t value) | |
4896 | { | |
4897 | int ret = -EINVAL; | |
4898 | struct drm_connector *connector = obj_to_connector(obj); | |
4899 | ||
4900 | /* Do DPMS ourselves */ | |
4901 | if (property == connector->dev->mode_config.dpms_property) { | |
3558c112 | 4902 | ret = (*connector->funcs->dpms)(connector, (int)value); |
c543188a PZ |
4903 | } else if (connector->funcs->set_property) |
4904 | ret = connector->funcs->set_property(connector, property, value); | |
4905 | ||
4906 | /* store the property value if successful */ | |
4907 | if (!ret) | |
58495563 | 4908 | drm_object_property_set_value(&connector->base, property, value); |
c543188a PZ |
4909 | return ret; |
4910 | } | |
4911 | ||
bffd9de0 PZ |
4912 | static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
4913 | struct drm_property *property, | |
4914 | uint64_t value) | |
4915 | { | |
4916 | int ret = -EINVAL; | |
4917 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
4918 | ||
4919 | if (crtc->funcs->set_property) | |
4920 | ret = crtc->funcs->set_property(crtc, property, value); | |
4921 | if (!ret) | |
4922 | drm_object_property_set_value(obj, property, value); | |
4923 | ||
4924 | return ret; | |
4925 | } | |
4926 | ||
3a5f87c2 TW |
4927 | /** |
4928 | * drm_mode_plane_set_obj_prop - set the value of a property | |
4929 | * @plane: drm plane object to set property value for | |
4930 | * @property: property to set | |
4931 | * @value: value the property should be set to | |
4932 | * | |
4933 | * This functions sets a given property on a given plane object. This function | |
4934 | * calls the driver's ->set_property callback and changes the software state of | |
4935 | * the property if the callback succeeds. | |
4936 | * | |
4937 | * Returns: | |
4938 | * Zero on success, error code on failure. | |
4939 | */ | |
4940 | int drm_mode_plane_set_obj_prop(struct drm_plane *plane, | |
4941 | struct drm_property *property, | |
4942 | uint64_t value) | |
4d93914a RC |
4943 | { |
4944 | int ret = -EINVAL; | |
3a5f87c2 | 4945 | struct drm_mode_object *obj = &plane->base; |
4d93914a RC |
4946 | |
4947 | if (plane->funcs->set_property) | |
4948 | ret = plane->funcs->set_property(plane, property, value); | |
4949 | if (!ret) | |
4950 | drm_object_property_set_value(obj, property, value); | |
4951 | ||
4952 | return ret; | |
4953 | } | |
3a5f87c2 | 4954 | EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); |
4d93914a | 4955 | |
c8e32cc1 | 4956 | /** |
1a498633 | 4957 | * drm_mode_obj_get_properties_ioctl - get the current value of a object's property |
c8e32cc1 DV |
4958 | * @dev: DRM device |
4959 | * @data: ioctl data | |
4960 | * @file_priv: DRM file info | |
4961 | * | |
4962 | * This function retrieves the current value for an object's property. Compared | |
4963 | * to the connector specific ioctl this one is extended to also work on crtc and | |
4964 | * plane objects. | |
4965 | * | |
4966 | * Called by the user via ioctl. | |
4967 | * | |
4968 | * Returns: | |
1a498633 | 4969 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4970 | */ |
c543188a PZ |
4971 | int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
4972 | struct drm_file *file_priv) | |
4973 | { | |
4974 | struct drm_mode_obj_get_properties *arg = data; | |
4975 | struct drm_mode_object *obj; | |
4976 | int ret = 0; | |
c543188a PZ |
4977 | |
4978 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4979 | return -EINVAL; | |
4980 | ||
84849903 | 4981 | drm_modeset_lock_all(dev); |
c543188a PZ |
4982 | |
4983 | obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
4984 | if (!obj) { | |
f27657f2 | 4985 | ret = -ENOENT; |
c543188a PZ |
4986 | goto out; |
4987 | } | |
4988 | if (!obj->properties) { | |
4989 | ret = -EINVAL; | |
1649c33b | 4990 | goto out_unref; |
c543188a PZ |
4991 | } |
4992 | ||
88a48e29 | 4993 | ret = get_properties(obj, file_priv->atomic, |
95cbf110 RC |
4994 | (uint32_t __user *)(unsigned long)(arg->props_ptr), |
4995 | (uint64_t __user *)(unsigned long)(arg->prop_values_ptr), | |
4996 | &arg->count_props); | |
c543188a | 4997 | |
1649c33b DV |
4998 | out_unref: |
4999 | drm_mode_object_unreference(obj); | |
c543188a | 5000 | out: |
84849903 | 5001 | drm_modeset_unlock_all(dev); |
c543188a PZ |
5002 | return ret; |
5003 | } | |
5004 | ||
c8e32cc1 DV |
5005 | /** |
5006 | * drm_mode_obj_set_property_ioctl - set the current value of an object's property | |
5007 | * @dev: DRM device | |
5008 | * @data: ioctl data | |
5009 | * @file_priv: DRM file info | |
5010 | * | |
5011 | * This function sets the current value for an object's property. It also calls | |
5012 | * into a driver's ->set_property callback to update the hardware state. | |
5013 | * Compared to the connector specific ioctl this one is extended to also work on | |
5014 | * crtc and plane objects. | |
5015 | * | |
5016 | * Called by the user via ioctl. | |
5017 | * | |
5018 | * Returns: | |
1a498633 | 5019 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5020 | */ |
c543188a PZ |
5021 | int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, |
5022 | struct drm_file *file_priv) | |
5023 | { | |
5024 | struct drm_mode_obj_set_property *arg = data; | |
5025 | struct drm_mode_object *arg_obj; | |
5026 | struct drm_mode_object *prop_obj; | |
5027 | struct drm_property *property; | |
3843e71f RC |
5028 | int i, ret = -EINVAL; |
5029 | struct drm_mode_object *ref; | |
c543188a PZ |
5030 | |
5031 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
5032 | return -EINVAL; | |
5033 | ||
84849903 | 5034 | drm_modeset_lock_all(dev); |
c543188a PZ |
5035 | |
5036 | arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
f27657f2 VS |
5037 | if (!arg_obj) { |
5038 | ret = -ENOENT; | |
c543188a | 5039 | goto out; |
f27657f2 | 5040 | } |
c543188a | 5041 | if (!arg_obj->properties) |
1649c33b | 5042 | goto out_unref; |
c543188a | 5043 | |
7f88a9be | 5044 | for (i = 0; i < arg_obj->properties->count; i++) |
b17cd757 | 5045 | if (arg_obj->properties->properties[i]->base.id == arg->prop_id) |
c543188a PZ |
5046 | break; |
5047 | ||
7f88a9be | 5048 | if (i == arg_obj->properties->count) |
1649c33b | 5049 | goto out_unref; |
c543188a PZ |
5050 | |
5051 | prop_obj = drm_mode_object_find(dev, arg->prop_id, | |
5052 | DRM_MODE_OBJECT_PROPERTY); | |
f27657f2 VS |
5053 | if (!prop_obj) { |
5054 | ret = -ENOENT; | |
1649c33b | 5055 | goto out_unref; |
f27657f2 | 5056 | } |
c543188a PZ |
5057 | property = obj_to_property(prop_obj); |
5058 | ||
3843e71f | 5059 | if (!drm_property_change_valid_get(property, arg->value, &ref)) |
b164d31f | 5060 | goto out_unref; |
c543188a PZ |
5061 | |
5062 | switch (arg_obj->type) { | |
5063 | case DRM_MODE_OBJECT_CONNECTOR: | |
5064 | ret = drm_mode_connector_set_obj_prop(arg_obj, property, | |
5065 | arg->value); | |
5066 | break; | |
bffd9de0 PZ |
5067 | case DRM_MODE_OBJECT_CRTC: |
5068 | ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); | |
5069 | break; | |
4d93914a | 5070 | case DRM_MODE_OBJECT_PLANE: |
3a5f87c2 TW |
5071 | ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj), |
5072 | property, arg->value); | |
4d93914a | 5073 | break; |
c543188a PZ |
5074 | } |
5075 | ||
3843e71f RC |
5076 | drm_property_change_valid_put(property, ref); |
5077 | ||
1649c33b DV |
5078 | out_unref: |
5079 | drm_mode_object_unreference(arg_obj); | |
c543188a | 5080 | out: |
84849903 | 5081 | drm_modeset_unlock_all(dev); |
c543188a PZ |
5082 | return ret; |
5083 | } | |
5084 | ||
c8e32cc1 DV |
5085 | /** |
5086 | * drm_mode_connector_attach_encoder - attach a connector to an encoder | |
5087 | * @connector: connector to attach | |
5088 | * @encoder: encoder to attach @connector to | |
5089 | * | |
5090 | * This function links up a connector to an encoder. Note that the routing | |
5091 | * restrictions between encoders and crtcs are exposed to userspace through the | |
5092 | * possible_clones and possible_crtcs bitmasks. | |
5093 | * | |
5094 | * Returns: | |
1a498633 | 5095 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5096 | */ |
f453ba04 DA |
5097 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
5098 | struct drm_encoder *encoder) | |
5099 | { | |
5100 | int i; | |
5101 | ||
eb47fe80 TR |
5102 | /* |
5103 | * In the past, drivers have attempted to model the static association | |
5104 | * of connector to encoder in simple connector/encoder devices using a | |
5105 | * direct assignment of connector->encoder = encoder. This connection | |
5106 | * is a logical one and the responsibility of the core, so drivers are | |
5107 | * expected not to mess with this. | |
5108 | * | |
5109 | * Note that the error return should've been enough here, but a large | |
5110 | * majority of drivers ignores the return value, so add in a big WARN | |
5111 | * to get people's attention. | |
5112 | */ | |
5113 | if (WARN_ON(connector->encoder)) | |
5114 | return -EINVAL; | |
5115 | ||
f453ba04 DA |
5116 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
5117 | if (connector->encoder_ids[i] == 0) { | |
5118 | connector->encoder_ids[i] = encoder->base.id; | |
5119 | return 0; | |
5120 | } | |
5121 | } | |
5122 | return -ENOMEM; | |
5123 | } | |
5124 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); | |
5125 | ||
c8e32cc1 DV |
5126 | /** |
5127 | * drm_mode_crtc_set_gamma_size - set the gamma table size | |
5128 | * @crtc: CRTC to set the gamma table size for | |
5129 | * @gamma_size: size of the gamma table | |
5130 | * | |
5131 | * Drivers which support gamma tables should set this to the supported gamma | |
5132 | * table size when initializing the CRTC. Currently the drm core only supports a | |
5133 | * fixed gamma table size. | |
5134 | * | |
5135 | * Returns: | |
1a498633 | 5136 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5137 | */ |
4cae5b84 | 5138 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
c8e32cc1 | 5139 | int gamma_size) |
f453ba04 DA |
5140 | { |
5141 | crtc->gamma_size = gamma_size; | |
5142 | ||
bd3f0ff9 TR |
5143 | crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3, |
5144 | GFP_KERNEL); | |
f453ba04 DA |
5145 | if (!crtc->gamma_store) { |
5146 | crtc->gamma_size = 0; | |
4cae5b84 | 5147 | return -ENOMEM; |
f453ba04 DA |
5148 | } |
5149 | ||
4cae5b84 | 5150 | return 0; |
f453ba04 DA |
5151 | } |
5152 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); | |
5153 | ||
c8e32cc1 DV |
5154 | /** |
5155 | * drm_mode_gamma_set_ioctl - set the gamma table | |
5156 | * @dev: DRM device | |
5157 | * @data: ioctl data | |
5158 | * @file_priv: DRM file info | |
5159 | * | |
5160 | * Set the gamma table of a CRTC to the one passed in by the user. Userspace can | |
5161 | * inquire the required gamma table size through drm_mode_gamma_get_ioctl. | |
5162 | * | |
5163 | * Called by the user via ioctl. | |
5164 | * | |
5165 | * Returns: | |
1a498633 | 5166 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5167 | */ |
f453ba04 DA |
5168 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
5169 | void *data, struct drm_file *file_priv) | |
5170 | { | |
5171 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
5172 | struct drm_crtc *crtc; |
5173 | void *r_base, *g_base, *b_base; | |
5174 | int size; | |
5175 | int ret = 0; | |
5176 | ||
fb3b06c8 DA |
5177 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
5178 | return -EINVAL; | |
5179 | ||
84849903 | 5180 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
5181 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
5182 | if (!crtc) { | |
f27657f2 | 5183 | ret = -ENOENT; |
f453ba04 DA |
5184 | goto out; |
5185 | } | |
f453ba04 | 5186 | |
ebe0f244 LP |
5187 | if (crtc->funcs->gamma_set == NULL) { |
5188 | ret = -ENOSYS; | |
5189 | goto out; | |
5190 | } | |
5191 | ||
f453ba04 DA |
5192 | /* memcpy into gamma store */ |
5193 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
5194 | ret = -EINVAL; | |
5195 | goto out; | |
5196 | } | |
5197 | ||
5198 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
5199 | r_base = crtc->gamma_store; | |
5200 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { | |
5201 | ret = -EFAULT; | |
5202 | goto out; | |
5203 | } | |
5204 | ||
5205 | g_base = r_base + size; | |
5206 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { | |
5207 | ret = -EFAULT; | |
5208 | goto out; | |
5209 | } | |
5210 | ||
5211 | b_base = g_base + size; | |
5212 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { | |
5213 | ret = -EFAULT; | |
5214 | goto out; | |
5215 | } | |
5216 | ||
7203425a | 5217 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
f453ba04 DA |
5218 | |
5219 | out: | |
84849903 | 5220 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
5221 | return ret; |
5222 | ||
5223 | } | |
5224 | ||
c8e32cc1 DV |
5225 | /** |
5226 | * drm_mode_gamma_get_ioctl - get the gamma table | |
5227 | * @dev: DRM device | |
5228 | * @data: ioctl data | |
5229 | * @file_priv: DRM file info | |
5230 | * | |
5231 | * Copy the current gamma table into the storage provided. This also provides | |
5232 | * the gamma table size the driver expects, which can be used to size the | |
5233 | * allocated storage. | |
5234 | * | |
5235 | * Called by the user via ioctl. | |
5236 | * | |
5237 | * Returns: | |
1a498633 | 5238 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5239 | */ |
f453ba04 DA |
5240 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
5241 | void *data, struct drm_file *file_priv) | |
5242 | { | |
5243 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
5244 | struct drm_crtc *crtc; |
5245 | void *r_base, *g_base, *b_base; | |
5246 | int size; | |
5247 | int ret = 0; | |
5248 | ||
fb3b06c8 DA |
5249 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
5250 | return -EINVAL; | |
5251 | ||
84849903 | 5252 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
5253 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
5254 | if (!crtc) { | |
f27657f2 | 5255 | ret = -ENOENT; |
f453ba04 DA |
5256 | goto out; |
5257 | } | |
f453ba04 DA |
5258 | |
5259 | /* memcpy into gamma store */ | |
5260 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
5261 | ret = -EINVAL; | |
5262 | goto out; | |
5263 | } | |
5264 | ||
5265 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
5266 | r_base = crtc->gamma_store; | |
5267 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { | |
5268 | ret = -EFAULT; | |
5269 | goto out; | |
5270 | } | |
5271 | ||
5272 | g_base = r_base + size; | |
5273 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { | |
5274 | ret = -EFAULT; | |
5275 | goto out; | |
5276 | } | |
5277 | ||
5278 | b_base = g_base + size; | |
5279 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { | |
5280 | ret = -EFAULT; | |
5281 | goto out; | |
5282 | } | |
5283 | out: | |
84849903 | 5284 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
5285 | return ret; |
5286 | } | |
d91d8a3f | 5287 | |
c8e32cc1 DV |
5288 | /** |
5289 | * drm_mode_page_flip_ioctl - schedule an asynchronous fb update | |
5290 | * @dev: DRM device | |
5291 | * @data: ioctl data | |
5292 | * @file_priv: DRM file info | |
5293 | * | |
5294 | * This schedules an asynchronous update on a given CRTC, called page flip. | |
5295 | * Optionally a drm event is generated to signal the completion of the event. | |
5296 | * Generic drivers cannot assume that a pageflip with changed framebuffer | |
5297 | * properties (including driver specific metadata like tiling layout) will work, | |
5298 | * but some drivers support e.g. pixel format changes through the pageflip | |
5299 | * ioctl. | |
5300 | * | |
5301 | * Called by the user via ioctl. | |
5302 | * | |
5303 | * Returns: | |
1a498633 | 5304 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5305 | */ |
d91d8a3f KH |
5306 | int drm_mode_page_flip_ioctl(struct drm_device *dev, |
5307 | void *data, struct drm_file *file_priv) | |
5308 | { | |
5309 | struct drm_mode_crtc_page_flip *page_flip = data; | |
d91d8a3f | 5310 | struct drm_crtc *crtc; |
3d30a59b | 5311 | struct drm_framebuffer *fb = NULL; |
d91d8a3f | 5312 | struct drm_pending_vblank_event *e = NULL; |
d91d8a3f KH |
5313 | int ret = -EINVAL; |
5314 | ||
5315 | if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || | |
5316 | page_flip->reserved != 0) | |
5317 | return -EINVAL; | |
5318 | ||
62f2104f KP |
5319 | if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) |
5320 | return -EINVAL; | |
5321 | ||
a2b34e22 RC |
5322 | crtc = drm_crtc_find(dev, page_flip->crtc_id); |
5323 | if (!crtc) | |
f27657f2 | 5324 | return -ENOENT; |
d91d8a3f | 5325 | |
4d02e2de | 5326 | drm_modeset_lock_crtc(crtc, crtc->primary); |
f4510a27 | 5327 | if (crtc->primary->fb == NULL) { |
90c1efdd CW |
5328 | /* The framebuffer is currently unbound, presumably |
5329 | * due to a hotplug event, that userspace has not | |
5330 | * yet discovered. | |
5331 | */ | |
5332 | ret = -EBUSY; | |
5333 | goto out; | |
5334 | } | |
5335 | ||
d91d8a3f KH |
5336 | if (crtc->funcs->page_flip == NULL) |
5337 | goto out; | |
5338 | ||
786b99ed | 5339 | fb = drm_framebuffer_lookup(dev, page_flip->fb_id); |
37c4e705 VS |
5340 | if (!fb) { |
5341 | ret = -ENOENT; | |
d91d8a3f | 5342 | goto out; |
37c4e705 | 5343 | } |
d91d8a3f | 5344 | |
2afa701d VS |
5345 | if (crtc->state) { |
5346 | const struct drm_plane_state *state = crtc->primary->state; | |
5347 | ||
5348 | ret = check_src_coords(state->src_x, state->src_y, | |
5349 | state->src_w, state->src_h, fb); | |
5350 | } else { | |
5351 | ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); | |
5352 | } | |
c11e9283 | 5353 | if (ret) |
5f61bb42 | 5354 | goto out; |
5f61bb42 | 5355 | |
f4510a27 | 5356 | if (crtc->primary->fb->pixel_format != fb->pixel_format) { |
909d9cda LP |
5357 | DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); |
5358 | ret = -EINVAL; | |
5359 | goto out; | |
5360 | } | |
5361 | ||
d91d8a3f | 5362 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
2dd500f1 DV |
5363 | e = kzalloc(sizeof *e, GFP_KERNEL); |
5364 | if (!e) { | |
5365 | ret = -ENOMEM; | |
d91d8a3f KH |
5366 | goto out; |
5367 | } | |
7bd4d7be | 5368 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; |
f76511b9 | 5369 | e->event.base.length = sizeof(e->event); |
d91d8a3f | 5370 | e->event.user_data = page_flip->user_data; |
2dd500f1 DV |
5371 | ret = drm_event_reserve_init(dev, file_priv, &e->base, &e->event.base); |
5372 | if (ret) { | |
5373 | kfree(e); | |
5374 | goto out; | |
5375 | } | |
d91d8a3f KH |
5376 | } |
5377 | ||
3d30a59b | 5378 | crtc->primary->old_fb = crtc->primary->fb; |
ed8d1975 | 5379 | ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); |
d91d8a3f | 5380 | if (ret) { |
2dd500f1 DV |
5381 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) |
5382 | drm_event_cancel_free(dev, &e->base); | |
b0d12325 | 5383 | /* Keep the old fb, don't unref it. */ |
3d30a59b | 5384 | crtc->primary->old_fb = NULL; |
b0d12325 | 5385 | } else { |
3cb43cc0 | 5386 | crtc->primary->fb = fb; |
b0d12325 DV |
5387 | /* Unref only the old framebuffer. */ |
5388 | fb = NULL; | |
d91d8a3f KH |
5389 | } |
5390 | ||
5391 | out: | |
b0d12325 DV |
5392 | if (fb) |
5393 | drm_framebuffer_unreference(fb); | |
3d30a59b DV |
5394 | if (crtc->primary->old_fb) |
5395 | drm_framebuffer_unreference(crtc->primary->old_fb); | |
5396 | crtc->primary->old_fb = NULL; | |
d059f652 | 5397 | drm_modeset_unlock_crtc(crtc); |
b4d5e7d1 | 5398 | |
d91d8a3f KH |
5399 | return ret; |
5400 | } | |
eb033556 | 5401 | |
c8e32cc1 DV |
5402 | /** |
5403 | * drm_mode_config_reset - call ->reset callbacks | |
5404 | * @dev: drm device | |
5405 | * | |
5406 | * This functions calls all the crtc's, encoder's and connector's ->reset | |
5407 | * callback. Drivers can use this in e.g. their driver load or resume code to | |
5408 | * reset hardware and software state. | |
5409 | */ | |
eb033556 CW |
5410 | void drm_mode_config_reset(struct drm_device *dev) |
5411 | { | |
5412 | struct drm_crtc *crtc; | |
2a0d7cfd | 5413 | struct drm_plane *plane; |
eb033556 CW |
5414 | struct drm_encoder *encoder; |
5415 | struct drm_connector *connector; | |
5416 | ||
e4f62546 | 5417 | drm_for_each_plane(plane, dev) |
2a0d7cfd DV |
5418 | if (plane->funcs->reset) |
5419 | plane->funcs->reset(plane); | |
5420 | ||
e4f62546 | 5421 | drm_for_each_crtc(crtc, dev) |
eb033556 CW |
5422 | if (crtc->funcs->reset) |
5423 | crtc->funcs->reset(crtc); | |
5424 | ||
e4f62546 | 5425 | drm_for_each_encoder(encoder, dev) |
eb033556 CW |
5426 | if (encoder->funcs->reset) |
5427 | encoder->funcs->reset(encoder); | |
5428 | ||
f8c2ba31 | 5429 | mutex_lock(&dev->mode_config.mutex); |
4eebf60b | 5430 | drm_for_each_connector(connector, dev) |
eb033556 CW |
5431 | if (connector->funcs->reset) |
5432 | connector->funcs->reset(connector); | |
f8c2ba31 | 5433 | mutex_unlock(&dev->mode_config.mutex); |
eb033556 CW |
5434 | } |
5435 | EXPORT_SYMBOL(drm_mode_config_reset); | |
ff72145b | 5436 | |
c8e32cc1 DV |
5437 | /** |
5438 | * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer | |
5439 | * @dev: DRM device | |
5440 | * @data: ioctl data | |
5441 | * @file_priv: DRM file info | |
5442 | * | |
5443 | * This creates a new dumb buffer in the driver's backing storage manager (GEM, | |
5444 | * TTM or something else entirely) and returns the resulting buffer handle. This | |
5445 | * handle can then be wrapped up into a framebuffer modeset object. | |
5446 | * | |
5447 | * Note that userspace is not allowed to use such objects for render | |
5448 | * acceleration - drivers must create their own private ioctls for such a use | |
5449 | * case. | |
5450 | * | |
5451 | * Called by the user via ioctl. | |
5452 | * | |
5453 | * Returns: | |
1a498633 | 5454 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5455 | */ |
ff72145b DA |
5456 | int drm_mode_create_dumb_ioctl(struct drm_device *dev, |
5457 | void *data, struct drm_file *file_priv) | |
5458 | { | |
5459 | struct drm_mode_create_dumb *args = data; | |
b28cd41f | 5460 | u32 cpp, stride, size; |
ff72145b DA |
5461 | |
5462 | if (!dev->driver->dumb_create) | |
5463 | return -ENOSYS; | |
b28cd41f DH |
5464 | if (!args->width || !args->height || !args->bpp) |
5465 | return -EINVAL; | |
5466 | ||
5467 | /* overflow checks for 32bit size calculations */ | |
00e72089 | 5468 | /* NOTE: DIV_ROUND_UP() can overflow */ |
b28cd41f | 5469 | cpp = DIV_ROUND_UP(args->bpp, 8); |
00e72089 | 5470 | if (!cpp || cpp > 0xffffffffU / args->width) |
b28cd41f DH |
5471 | return -EINVAL; |
5472 | stride = cpp * args->width; | |
5473 | if (args->height > 0xffffffffU / stride) | |
5474 | return -EINVAL; | |
5475 | ||
5476 | /* test for wrap-around */ | |
5477 | size = args->height * stride; | |
5478 | if (PAGE_ALIGN(size) == 0) | |
5479 | return -EINVAL; | |
5480 | ||
f6085952 TR |
5481 | /* |
5482 | * handle, pitch and size are output parameters. Zero them out to | |
5483 | * prevent drivers from accidentally using uninitialized data. Since | |
5484 | * not all existing userspace is clearing these fields properly we | |
5485 | * cannot reject IOCTL with garbage in them. | |
5486 | */ | |
5487 | args->handle = 0; | |
5488 | args->pitch = 0; | |
5489 | args->size = 0; | |
5490 | ||
ff72145b DA |
5491 | return dev->driver->dumb_create(file_priv, dev, args); |
5492 | } | |
5493 | ||
c8e32cc1 DV |
5494 | /** |
5495 | * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer | |
5496 | * @dev: DRM device | |
5497 | * @data: ioctl data | |
5498 | * @file_priv: DRM file info | |
5499 | * | |
5500 | * Allocate an offset in the drm device node's address space to be able to | |
5501 | * memory map a dumb buffer. | |
5502 | * | |
5503 | * Called by the user via ioctl. | |
5504 | * | |
5505 | * Returns: | |
1a498633 | 5506 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5507 | */ |
ff72145b DA |
5508 | int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, |
5509 | void *data, struct drm_file *file_priv) | |
5510 | { | |
5511 | struct drm_mode_map_dumb *args = data; | |
5512 | ||
5513 | /* call driver ioctl to get mmap offset */ | |
5514 | if (!dev->driver->dumb_map_offset) | |
5515 | return -ENOSYS; | |
5516 | ||
5517 | return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); | |
5518 | } | |
5519 | ||
c8e32cc1 DV |
5520 | /** |
5521 | * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer | |
5522 | * @dev: DRM device | |
5523 | * @data: ioctl data | |
5524 | * @file_priv: DRM file info | |
5525 | * | |
5526 | * This destroys the userspace handle for the given dumb backing storage buffer. | |
5527 | * Since buffer objects must be reference counted in the kernel a buffer object | |
5528 | * won't be immediately freed if a framebuffer modeset object still uses it. | |
5529 | * | |
5530 | * Called by the user via ioctl. | |
5531 | * | |
5532 | * Returns: | |
1a498633 | 5533 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5534 | */ |
ff72145b DA |
5535 | int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, |
5536 | void *data, struct drm_file *file_priv) | |
5537 | { | |
5538 | struct drm_mode_destroy_dumb *args = data; | |
5539 | ||
5540 | if (!dev->driver->dumb_destroy) | |
5541 | return -ENOSYS; | |
5542 | ||
5543 | return dev->driver->dumb_destroy(file_priv, dev, args->handle); | |
5544 | } | |
248dbc23 | 5545 | |
c8e32cc1 DV |
5546 | /** |
5547 | * drm_fb_get_bpp_depth - get the bpp/depth values for format | |
5548 | * @format: pixel format (DRM_FORMAT_*) | |
5549 | * @depth: storage for the depth value | |
5550 | * @bpp: storage for the bpp value | |
5551 | * | |
5552 | * This only supports RGB formats here for compat with code that doesn't use | |
5553 | * pixel formats directly yet. | |
248dbc23 DA |
5554 | */ |
5555 | void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, | |
5556 | int *bpp) | |
5557 | { | |
5558 | switch (format) { | |
c51a6bc5 | 5559 | case DRM_FORMAT_C8: |
04b3924d VS |
5560 | case DRM_FORMAT_RGB332: |
5561 | case DRM_FORMAT_BGR233: | |
248dbc23 DA |
5562 | *depth = 8; |
5563 | *bpp = 8; | |
5564 | break; | |
04b3924d VS |
5565 | case DRM_FORMAT_XRGB1555: |
5566 | case DRM_FORMAT_XBGR1555: | |
5567 | case DRM_FORMAT_RGBX5551: | |
5568 | case DRM_FORMAT_BGRX5551: | |
5569 | case DRM_FORMAT_ARGB1555: | |
5570 | case DRM_FORMAT_ABGR1555: | |
5571 | case DRM_FORMAT_RGBA5551: | |
5572 | case DRM_FORMAT_BGRA5551: | |
248dbc23 DA |
5573 | *depth = 15; |
5574 | *bpp = 16; | |
5575 | break; | |
04b3924d VS |
5576 | case DRM_FORMAT_RGB565: |
5577 | case DRM_FORMAT_BGR565: | |
248dbc23 DA |
5578 | *depth = 16; |
5579 | *bpp = 16; | |
5580 | break; | |
04b3924d VS |
5581 | case DRM_FORMAT_RGB888: |
5582 | case DRM_FORMAT_BGR888: | |
5583 | *depth = 24; | |
5584 | *bpp = 24; | |
5585 | break; | |
5586 | case DRM_FORMAT_XRGB8888: | |
5587 | case DRM_FORMAT_XBGR8888: | |
5588 | case DRM_FORMAT_RGBX8888: | |
5589 | case DRM_FORMAT_BGRX8888: | |
248dbc23 DA |
5590 | *depth = 24; |
5591 | *bpp = 32; | |
5592 | break; | |
04b3924d VS |
5593 | case DRM_FORMAT_XRGB2101010: |
5594 | case DRM_FORMAT_XBGR2101010: | |
5595 | case DRM_FORMAT_RGBX1010102: | |
5596 | case DRM_FORMAT_BGRX1010102: | |
5597 | case DRM_FORMAT_ARGB2101010: | |
5598 | case DRM_FORMAT_ABGR2101010: | |
5599 | case DRM_FORMAT_RGBA1010102: | |
5600 | case DRM_FORMAT_BGRA1010102: | |
248dbc23 DA |
5601 | *depth = 30; |
5602 | *bpp = 32; | |
5603 | break; | |
04b3924d VS |
5604 | case DRM_FORMAT_ARGB8888: |
5605 | case DRM_FORMAT_ABGR8888: | |
5606 | case DRM_FORMAT_RGBA8888: | |
5607 | case DRM_FORMAT_BGRA8888: | |
248dbc23 DA |
5608 | *depth = 32; |
5609 | *bpp = 32; | |
5610 | break; | |
5611 | default: | |
23c453a4 VS |
5612 | DRM_DEBUG_KMS("unsupported pixel format %s\n", |
5613 | drm_get_format_name(format)); | |
248dbc23 DA |
5614 | *depth = 0; |
5615 | *bpp = 0; | |
5616 | break; | |
5617 | } | |
5618 | } | |
5619 | EXPORT_SYMBOL(drm_fb_get_bpp_depth); | |
141670e9 VS |
5620 | |
5621 | /** | |
5622 | * drm_format_num_planes - get the number of planes for format | |
5623 | * @format: pixel format (DRM_FORMAT_*) | |
5624 | * | |
c8e32cc1 | 5625 | * Returns: |
141670e9 VS |
5626 | * The number of planes used by the specified pixel format. |
5627 | */ | |
5628 | int drm_format_num_planes(uint32_t format) | |
5629 | { | |
5630 | switch (format) { | |
5631 | case DRM_FORMAT_YUV410: | |
5632 | case DRM_FORMAT_YVU410: | |
5633 | case DRM_FORMAT_YUV411: | |
5634 | case DRM_FORMAT_YVU411: | |
5635 | case DRM_FORMAT_YUV420: | |
5636 | case DRM_FORMAT_YVU420: | |
5637 | case DRM_FORMAT_YUV422: | |
5638 | case DRM_FORMAT_YVU422: | |
5639 | case DRM_FORMAT_YUV444: | |
5640 | case DRM_FORMAT_YVU444: | |
5641 | return 3; | |
5642 | case DRM_FORMAT_NV12: | |
5643 | case DRM_FORMAT_NV21: | |
5644 | case DRM_FORMAT_NV16: | |
5645 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
5646 | case DRM_FORMAT_NV24: |
5647 | case DRM_FORMAT_NV42: | |
141670e9 VS |
5648 | return 2; |
5649 | default: | |
5650 | return 1; | |
5651 | } | |
5652 | } | |
5653 | EXPORT_SYMBOL(drm_format_num_planes); | |
5a86bd55 VS |
5654 | |
5655 | /** | |
5656 | * drm_format_plane_cpp - determine the bytes per pixel value | |
5657 | * @format: pixel format (DRM_FORMAT_*) | |
5658 | * @plane: plane index | |
5659 | * | |
c8e32cc1 | 5660 | * Returns: |
5a86bd55 VS |
5661 | * The bytes per pixel value for the specified plane. |
5662 | */ | |
5663 | int drm_format_plane_cpp(uint32_t format, int plane) | |
5664 | { | |
5665 | unsigned int depth; | |
5666 | int bpp; | |
5667 | ||
5668 | if (plane >= drm_format_num_planes(format)) | |
5669 | return 0; | |
5670 | ||
5671 | switch (format) { | |
5672 | case DRM_FORMAT_YUYV: | |
5673 | case DRM_FORMAT_YVYU: | |
5674 | case DRM_FORMAT_UYVY: | |
5675 | case DRM_FORMAT_VYUY: | |
5676 | return 2; | |
5677 | case DRM_FORMAT_NV12: | |
5678 | case DRM_FORMAT_NV21: | |
5679 | case DRM_FORMAT_NV16: | |
5680 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
5681 | case DRM_FORMAT_NV24: |
5682 | case DRM_FORMAT_NV42: | |
5a86bd55 VS |
5683 | return plane ? 2 : 1; |
5684 | case DRM_FORMAT_YUV410: | |
5685 | case DRM_FORMAT_YVU410: | |
5686 | case DRM_FORMAT_YUV411: | |
5687 | case DRM_FORMAT_YVU411: | |
5688 | case DRM_FORMAT_YUV420: | |
5689 | case DRM_FORMAT_YVU420: | |
5690 | case DRM_FORMAT_YUV422: | |
5691 | case DRM_FORMAT_YVU422: | |
5692 | case DRM_FORMAT_YUV444: | |
5693 | case DRM_FORMAT_YVU444: | |
5694 | return 1; | |
5695 | default: | |
5696 | drm_fb_get_bpp_depth(format, &depth, &bpp); | |
5697 | return bpp >> 3; | |
5698 | } | |
5699 | } | |
5700 | EXPORT_SYMBOL(drm_format_plane_cpp); | |
01b68b04 VS |
5701 | |
5702 | /** | |
5703 | * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor | |
5704 | * @format: pixel format (DRM_FORMAT_*) | |
5705 | * | |
c8e32cc1 | 5706 | * Returns: |
01b68b04 VS |
5707 | * The horizontal chroma subsampling factor for the |
5708 | * specified pixel format. | |
5709 | */ | |
5710 | int drm_format_horz_chroma_subsampling(uint32_t format) | |
5711 | { | |
5712 | switch (format) { | |
5713 | case DRM_FORMAT_YUV411: | |
5714 | case DRM_FORMAT_YVU411: | |
5715 | case DRM_FORMAT_YUV410: | |
5716 | case DRM_FORMAT_YVU410: | |
5717 | return 4; | |
5718 | case DRM_FORMAT_YUYV: | |
5719 | case DRM_FORMAT_YVYU: | |
5720 | case DRM_FORMAT_UYVY: | |
5721 | case DRM_FORMAT_VYUY: | |
5722 | case DRM_FORMAT_NV12: | |
5723 | case DRM_FORMAT_NV21: | |
5724 | case DRM_FORMAT_NV16: | |
5725 | case DRM_FORMAT_NV61: | |
5726 | case DRM_FORMAT_YUV422: | |
5727 | case DRM_FORMAT_YVU422: | |
5728 | case DRM_FORMAT_YUV420: | |
5729 | case DRM_FORMAT_YVU420: | |
5730 | return 2; | |
5731 | default: | |
5732 | return 1; | |
5733 | } | |
5734 | } | |
5735 | EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); | |
5736 | ||
5737 | /** | |
5738 | * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor | |
5739 | * @format: pixel format (DRM_FORMAT_*) | |
5740 | * | |
c8e32cc1 | 5741 | * Returns: |
01b68b04 VS |
5742 | * The vertical chroma subsampling factor for the |
5743 | * specified pixel format. | |
5744 | */ | |
5745 | int drm_format_vert_chroma_subsampling(uint32_t format) | |
5746 | { | |
5747 | switch (format) { | |
5748 | case DRM_FORMAT_YUV410: | |
5749 | case DRM_FORMAT_YVU410: | |
5750 | return 4; | |
5751 | case DRM_FORMAT_YUV420: | |
5752 | case DRM_FORMAT_YVU420: | |
5753 | case DRM_FORMAT_NV12: | |
5754 | case DRM_FORMAT_NV21: | |
5755 | return 2; | |
5756 | default: | |
5757 | return 1; | |
5758 | } | |
5759 | } | |
5760 | EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); | |
87d24fc3 | 5761 | |
4c61716c VS |
5762 | /** |
5763 | * drm_format_plane_width - width of the plane given the first plane | |
5764 | * @width: width of the first plane | |
5765 | * @format: pixel format | |
5766 | * @plane: plane index | |
5767 | * | |
5768 | * Returns: | |
5769 | * The width of @plane, given that the width of the first plane is @width. | |
5770 | */ | |
5771 | int drm_format_plane_width(int width, uint32_t format, int plane) | |
5772 | { | |
5773 | if (plane >= drm_format_num_planes(format)) | |
5774 | return 0; | |
5775 | ||
5776 | if (plane == 0) | |
5777 | return width; | |
5778 | ||
5779 | return width / drm_format_horz_chroma_subsampling(format); | |
5780 | } | |
5781 | EXPORT_SYMBOL(drm_format_plane_width); | |
5782 | ||
5783 | /** | |
5784 | * drm_format_plane_height - height of the plane given the first plane | |
5785 | * @height: height of the first plane | |
5786 | * @format: pixel format | |
5787 | * @plane: plane index | |
5788 | * | |
5789 | * Returns: | |
5790 | * The height of @plane, given that the height of the first plane is @height. | |
5791 | */ | |
5792 | int drm_format_plane_height(int height, uint32_t format, int plane) | |
5793 | { | |
5794 | if (plane >= drm_format_num_planes(format)) | |
5795 | return 0; | |
5796 | ||
5797 | if (plane == 0) | |
5798 | return height; | |
5799 | ||
5800 | return height / drm_format_vert_chroma_subsampling(format); | |
5801 | } | |
5802 | EXPORT_SYMBOL(drm_format_plane_height); | |
5803 | ||
3c9855f6 VS |
5804 | /** |
5805 | * drm_rotation_simplify() - Try to simplify the rotation | |
5806 | * @rotation: Rotation to be simplified | |
5807 | * @supported_rotations: Supported rotations | |
5808 | * | |
5809 | * Attempt to simplify the rotation to a form that is supported. | |
5810 | * Eg. if the hardware supports everything except DRM_REFLECT_X | |
5811 | * one could call this function like this: | |
5812 | * | |
5813 | * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) | | |
5814 | * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) | | |
5815 | * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y)); | |
5816 | * | |
5817 | * to eliminate the DRM_ROTATE_X flag. Depending on what kind of | |
5818 | * transforms the hardware supports, this function may not | |
5819 | * be able to produce a supported transform, so the caller should | |
5820 | * check the result afterwards. | |
5821 | */ | |
5822 | unsigned int drm_rotation_simplify(unsigned int rotation, | |
5823 | unsigned int supported_rotations) | |
5824 | { | |
5825 | if (rotation & ~supported_rotations) { | |
5826 | rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y); | |
14152c8d JL |
5827 | rotation = (rotation & DRM_REFLECT_MASK) | |
5828 | BIT((ffs(rotation & DRM_ROTATE_MASK) + 1) % 4); | |
3c9855f6 VS |
5829 | } |
5830 | ||
5831 | return rotation; | |
5832 | } | |
5833 | EXPORT_SYMBOL(drm_rotation_simplify); | |
5834 | ||
87d24fc3 LP |
5835 | /** |
5836 | * drm_mode_config_init - initialize DRM mode_configuration structure | |
5837 | * @dev: DRM device | |
5838 | * | |
5839 | * Initialize @dev's mode_config structure, used for tracking the graphics | |
5840 | * configuration of @dev. | |
5841 | * | |
5842 | * Since this initializes the modeset locks, no locking is possible. Which is no | |
5843 | * problem, since this should happen single threaded at init time. It is the | |
5844 | * driver's problem to ensure this guarantee. | |
5845 | * | |
5846 | */ | |
5847 | void drm_mode_config_init(struct drm_device *dev) | |
5848 | { | |
5849 | mutex_init(&dev->mode_config.mutex); | |
51fd371b | 5850 | drm_modeset_lock_init(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
5851 | mutex_init(&dev->mode_config.idr_mutex); |
5852 | mutex_init(&dev->mode_config.fb_lock); | |
8fb6e7a5 | 5853 | mutex_init(&dev->mode_config.blob_lock); |
87d24fc3 LP |
5854 | INIT_LIST_HEAD(&dev->mode_config.fb_list); |
5855 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); | |
5856 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
5857 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); | |
5858 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
5859 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
5860 | INIT_LIST_HEAD(&dev->mode_config.plane_list); | |
5861 | idr_init(&dev->mode_config.crtc_idr); | |
138f9ebb | 5862 | idr_init(&dev->mode_config.tile_idr); |
5fff80bb | 5863 | ida_init(&dev->mode_config.connector_ida); |
87d24fc3 LP |
5864 | |
5865 | drm_modeset_lock_all(dev); | |
6b4959f4 | 5866 | drm_mode_create_standard_properties(dev); |
87d24fc3 LP |
5867 | drm_modeset_unlock_all(dev); |
5868 | ||
5869 | /* Just to be sure */ | |
5870 | dev->mode_config.num_fb = 0; | |
5871 | dev->mode_config.num_connector = 0; | |
5872 | dev->mode_config.num_crtc = 0; | |
5873 | dev->mode_config.num_encoder = 0; | |
e27dde3e MR |
5874 | dev->mode_config.num_overlay_plane = 0; |
5875 | dev->mode_config.num_total_plane = 0; | |
87d24fc3 LP |
5876 | } |
5877 | EXPORT_SYMBOL(drm_mode_config_init); | |
5878 | ||
5879 | /** | |
5880 | * drm_mode_config_cleanup - free up DRM mode_config info | |
5881 | * @dev: DRM device | |
5882 | * | |
5883 | * Free up all the connectors and CRTCs associated with this DRM device, then | |
5884 | * free up the framebuffers and associated buffer objects. | |
5885 | * | |
5886 | * Note that since this /should/ happen single-threaded at driver/device | |
5887 | * teardown time, no locking is required. It's the driver's job to ensure that | |
5888 | * this guarantee actually holds true. | |
5889 | * | |
5890 | * FIXME: cleanup any dangling user buffer objects too | |
5891 | */ | |
5892 | void drm_mode_config_cleanup(struct drm_device *dev) | |
5893 | { | |
5894 | struct drm_connector *connector, *ot; | |
5895 | struct drm_crtc *crtc, *ct; | |
5896 | struct drm_encoder *encoder, *enct; | |
5897 | struct drm_framebuffer *fb, *fbt; | |
5898 | struct drm_property *property, *pt; | |
5899 | struct drm_property_blob *blob, *bt; | |
5900 | struct drm_plane *plane, *plt; | |
5901 | ||
5902 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
5903 | head) { | |
5904 | encoder->funcs->destroy(encoder); | |
5905 | } | |
5906 | ||
5907 | list_for_each_entry_safe(connector, ot, | |
5908 | &dev->mode_config.connector_list, head) { | |
5909 | connector->funcs->destroy(connector); | |
5910 | } | |
5911 | ||
5912 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
5913 | head) { | |
5914 | drm_property_destroy(dev, property); | |
5915 | } | |
5916 | ||
f35034f8 ML |
5917 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, |
5918 | head) { | |
5919 | plane->funcs->destroy(plane); | |
5920 | } | |
5921 | ||
5922 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { | |
5923 | crtc->funcs->destroy(crtc); | |
5924 | } | |
5925 | ||
87d24fc3 | 5926 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, |
e2f5d2ea | 5927 | head_global) { |
6bcacf51 | 5928 | drm_property_unreference_blob(blob); |
87d24fc3 LP |
5929 | } |
5930 | ||
5931 | /* | |
5932 | * Single-threaded teardown context, so it's not required to grab the | |
5933 | * fb_lock to protect against concurrent fb_list access. Contrary, it | |
5934 | * would actually deadlock with the drm_framebuffer_cleanup function. | |
5935 | * | |
5936 | * Also, if there are any framebuffers left, that's a driver leak now, | |
5937 | * so politely WARN about this. | |
5938 | */ | |
5939 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); | |
5940 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { | |
d0f37cf6 | 5941 | drm_framebuffer_free(&fb->base.refcount); |
87d24fc3 LP |
5942 | } |
5943 | ||
5fff80bb | 5944 | ida_destroy(&dev->mode_config.connector_ida); |
138f9ebb | 5945 | idr_destroy(&dev->mode_config.tile_idr); |
87d24fc3 | 5946 | idr_destroy(&dev->mode_config.crtc_idr); |
51fd371b | 5947 | drm_modeset_lock_fini(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
5948 | } |
5949 | EXPORT_SYMBOL(drm_mode_config_cleanup); | |
c1df5f3c VS |
5950 | |
5951 | struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, | |
5952 | unsigned int supported_rotations) | |
5953 | { | |
5954 | static const struct drm_prop_enum_list props[] = { | |
5955 | { DRM_ROTATE_0, "rotate-0" }, | |
5956 | { DRM_ROTATE_90, "rotate-90" }, | |
5957 | { DRM_ROTATE_180, "rotate-180" }, | |
5958 | { DRM_ROTATE_270, "rotate-270" }, | |
5959 | { DRM_REFLECT_X, "reflect-x" }, | |
5960 | { DRM_REFLECT_Y, "reflect-y" }, | |
5961 | }; | |
5962 | ||
5963 | return drm_property_create_bitmask(dev, 0, "rotation", | |
5964 | props, ARRAY_SIZE(props), | |
5965 | supported_rotations); | |
5966 | } | |
5967 | EXPORT_SYMBOL(drm_mode_create_rotation_property); | |
138f9ebb DA |
5968 | |
5969 | /** | |
5970 | * DOC: Tile group | |
5971 | * | |
5972 | * Tile groups are used to represent tiled monitors with a unique | |
5973 | * integer identifier. Tiled monitors using DisplayID v1.3 have | |
5974 | * a unique 8-byte handle, we store this in a tile group, so we | |
5975 | * have a common identifier for all tiles in a monitor group. | |
5976 | */ | |
5977 | static void drm_tile_group_free(struct kref *kref) | |
5978 | { | |
5979 | struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount); | |
5980 | struct drm_device *dev = tg->dev; | |
5981 | mutex_lock(&dev->mode_config.idr_mutex); | |
5982 | idr_remove(&dev->mode_config.tile_idr, tg->id); | |
5983 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5984 | kfree(tg); | |
5985 | } | |
5986 | ||
5987 | /** | |
5988 | * drm_mode_put_tile_group - drop a reference to a tile group. | |
5989 | * @dev: DRM device | |
5990 | * @tg: tile group to drop reference to. | |
5991 | * | |
5992 | * drop reference to tile group and free if 0. | |
5993 | */ | |
5994 | void drm_mode_put_tile_group(struct drm_device *dev, | |
5995 | struct drm_tile_group *tg) | |
5996 | { | |
5997 | kref_put(&tg->refcount, drm_tile_group_free); | |
5998 | } | |
5999 | ||
6000 | /** | |
6001 | * drm_mode_get_tile_group - get a reference to an existing tile group | |
6002 | * @dev: DRM device | |
6003 | * @topology: 8-bytes unique per monitor. | |
6004 | * | |
6005 | * Use the unique bytes to get a reference to an existing tile group. | |
6006 | * | |
6007 | * RETURNS: | |
6008 | * tile group or NULL if not found. | |
6009 | */ | |
6010 | struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, | |
6011 | char topology[8]) | |
6012 | { | |
6013 | struct drm_tile_group *tg; | |
6014 | int id; | |
6015 | mutex_lock(&dev->mode_config.idr_mutex); | |
6016 | idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) { | |
6017 | if (!memcmp(tg->group_data, topology, 8)) { | |
6018 | if (!kref_get_unless_zero(&tg->refcount)) | |
6019 | tg = NULL; | |
6020 | mutex_unlock(&dev->mode_config.idr_mutex); | |
6021 | return tg; | |
6022 | } | |
6023 | } | |
6024 | mutex_unlock(&dev->mode_config.idr_mutex); | |
6025 | return NULL; | |
6026 | } | |
81ddd1bc | 6027 | EXPORT_SYMBOL(drm_mode_get_tile_group); |
138f9ebb DA |
6028 | |
6029 | /** | |
6030 | * drm_mode_create_tile_group - create a tile group from a displayid description | |
6031 | * @dev: DRM device | |
6032 | * @topology: 8-bytes unique per monitor. | |
6033 | * | |
6034 | * Create a tile group for the unique monitor, and get a unique | |
6035 | * identifier for the tile group. | |
6036 | * | |
6037 | * RETURNS: | |
6038 | * new tile group or error. | |
6039 | */ | |
6040 | struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, | |
6041 | char topology[8]) | |
6042 | { | |
6043 | struct drm_tile_group *tg; | |
6044 | int ret; | |
6045 | ||
6046 | tg = kzalloc(sizeof(*tg), GFP_KERNEL); | |
6047 | if (!tg) | |
6048 | return ERR_PTR(-ENOMEM); | |
6049 | ||
6050 | kref_init(&tg->refcount); | |
6051 | memcpy(tg->group_data, topology, 8); | |
6052 | tg->dev = dev; | |
6053 | ||
6054 | mutex_lock(&dev->mode_config.idr_mutex); | |
6055 | ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL); | |
6056 | if (ret >= 0) { | |
6057 | tg->id = ret; | |
6058 | } else { | |
6059 | kfree(tg); | |
6060 | tg = ERR_PTR(ret); | |
6061 | } | |
6062 | ||
6063 | mutex_unlock(&dev->mode_config.idr_mutex); | |
6064 | return tg; | |
6065 | } | |
81ddd1bc | 6066 | EXPORT_SYMBOL(drm_mode_create_tile_group); |