]>
Commit | Line | Data |
---|---|---|
f453ba04 DA |
1 | /* |
2 | * Copyright (c) 2006-2008 Intel Corporation | |
3 | * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> | |
4 | * Copyright (c) 2008 Red Hat Inc. | |
5 | * | |
6 | * DRM core CRTC related functions | |
7 | * | |
8 | * Permission to use, copy, modify, distribute, and sell this software and its | |
9 | * documentation for any purpose is hereby granted without fee, provided that | |
10 | * the above copyright notice appear in all copies and that both that copyright | |
11 | * notice and this permission notice appear in supporting documentation, and | |
12 | * that the name of the copyright holders not be used in advertising or | |
13 | * publicity pertaining to distribution of the software without specific, | |
14 | * written prior permission. The copyright holders make no representations | |
15 | * about the suitability of this software for any purpose. It is provided "as | |
16 | * is" without express or implied warranty. | |
17 | * | |
18 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
19 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
20 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
21 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
22 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
23 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
24 | * OF THIS SOFTWARE. | |
25 | * | |
26 | * Authors: | |
27 | * Keith Packard | |
28 | * Eric Anholt <eric@anholt.net> | |
29 | * Dave Airlie <airlied@linux.ie> | |
30 | * Jesse Barnes <jesse.barnes@intel.com> | |
31 | */ | |
6ba6d03e | 32 | #include <linux/ctype.h> |
f453ba04 | 33 | #include <linux/list.h> |
5a0e3ad6 | 34 | #include <linux/slab.h> |
2d1a8a48 | 35 | #include <linux/export.h> |
760285e7 DH |
36 | #include <drm/drmP.h> |
37 | #include <drm/drm_crtc.h> | |
38 | #include <drm/drm_edid.h> | |
39 | #include <drm/drm_fourcc.h> | |
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 | |
c394c2b0 MR |
46 | static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev, |
47 | struct drm_mode_fb_cmd2 *r, | |
48 | struct drm_file *file_priv); | |
49 | ||
f453ba04 DA |
50 | /* Avoid boilerplate. I'm tired of typing. */ |
51 | #define DRM_ENUM_NAME_FN(fnname, list) \ | |
d20d3174 | 52 | const char *fnname(int val) \ |
f453ba04 DA |
53 | { \ |
54 | int i; \ | |
55 | for (i = 0; i < ARRAY_SIZE(list); i++) { \ | |
56 | if (list[i].type == val) \ | |
57 | return list[i].name; \ | |
58 | } \ | |
59 | return "(unknown)"; \ | |
60 | } | |
61 | ||
62 | /* | |
63 | * Global properties | |
64 | */ | |
4dfd909f TR |
65 | static const struct drm_prop_enum_list drm_dpms_enum_list[] = { |
66 | { DRM_MODE_DPMS_ON, "On" }, | |
f453ba04 DA |
67 | { DRM_MODE_DPMS_STANDBY, "Standby" }, |
68 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, | |
69 | { DRM_MODE_DPMS_OFF, "Off" } | |
70 | }; | |
71 | ||
72 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) | |
73 | ||
4dfd909f | 74 | static const struct drm_prop_enum_list drm_plane_type_enum_list[] = { |
9922ab5a RC |
75 | { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, |
76 | { DRM_PLANE_TYPE_PRIMARY, "Primary" }, | |
77 | { DRM_PLANE_TYPE_CURSOR, "Cursor" }, | |
78 | }; | |
79 | ||
f453ba04 DA |
80 | /* |
81 | * Optional properties | |
82 | */ | |
4dfd909f | 83 | static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = { |
53bd8389 JB |
84 | { DRM_MODE_SCALE_NONE, "None" }, |
85 | { DRM_MODE_SCALE_FULLSCREEN, "Full" }, | |
86 | { DRM_MODE_SCALE_CENTER, "Center" }, | |
87 | { DRM_MODE_SCALE_ASPECT, "Full aspect" }, | |
f453ba04 DA |
88 | }; |
89 | ||
ff587e45 VK |
90 | static const struct drm_prop_enum_list drm_aspect_ratio_enum_list[] = { |
91 | { DRM_MODE_PICTURE_ASPECT_NONE, "Automatic" }, | |
92 | { DRM_MODE_PICTURE_ASPECT_4_3, "4:3" }, | |
93 | { DRM_MODE_PICTURE_ASPECT_16_9, "16:9" }, | |
94 | }; | |
95 | ||
f453ba04 DA |
96 | /* |
97 | * Non-global properties, but "required" for certain connectors. | |
98 | */ | |
4dfd909f | 99 | static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = { |
f453ba04 DA |
100 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
101 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
102 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
103 | }; | |
104 | ||
105 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) | |
106 | ||
4dfd909f | 107 | static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = { |
f453ba04 DA |
108 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
109 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
110 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
111 | }; | |
112 | ||
113 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, | |
114 | drm_dvi_i_subconnector_enum_list) | |
115 | ||
4dfd909f | 116 | static const struct drm_prop_enum_list drm_tv_select_enum_list[] = { |
f453ba04 DA |
117 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
118 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
119 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
120 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 121 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
122 | }; |
123 | ||
124 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) | |
125 | ||
4dfd909f | 126 | static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = { |
f453ba04 DA |
127 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
128 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
129 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
130 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 131 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
132 | }; |
133 | ||
134 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, | |
135 | drm_tv_subconnector_enum_list) | |
136 | ||
d20d3174 | 137 | static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = { |
884840aa JB |
138 | { DRM_MODE_DIRTY_OFF, "Off" }, |
139 | { DRM_MODE_DIRTY_ON, "On" }, | |
140 | { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, | |
141 | }; | |
142 | ||
f453ba04 DA |
143 | struct drm_conn_prop_enum_list { |
144 | int type; | |
d20d3174 | 145 | const char *name; |
b21e3afe | 146 | struct ida ida; |
f453ba04 DA |
147 | }; |
148 | ||
149 | /* | |
150 | * Connector and encoder types. | |
151 | */ | |
4dfd909f TR |
152 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = { |
153 | { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, | |
b21e3afe IM |
154 | { DRM_MODE_CONNECTOR_VGA, "VGA" }, |
155 | { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, | |
156 | { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, | |
157 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, | |
158 | { DRM_MODE_CONNECTOR_Composite, "Composite" }, | |
159 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, | |
160 | { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, | |
161 | { DRM_MODE_CONNECTOR_Component, "Component" }, | |
162 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, | |
163 | { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, | |
164 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, | |
165 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, | |
166 | { DRM_MODE_CONNECTOR_TV, "TV" }, | |
167 | { DRM_MODE_CONNECTOR_eDP, "eDP" }, | |
168 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, | |
b8923273 | 169 | { DRM_MODE_CONNECTOR_DSI, "DSI" }, |
f453ba04 DA |
170 | }; |
171 | ||
4dfd909f TR |
172 | static const struct drm_prop_enum_list drm_encoder_enum_list[] = { |
173 | { DRM_MODE_ENCODER_NONE, "None" }, | |
f453ba04 DA |
174 | { DRM_MODE_ENCODER_DAC, "DAC" }, |
175 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, | |
176 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, | |
177 | { DRM_MODE_ENCODER_TVDAC, "TV" }, | |
a7331e5c | 178 | { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, |
b8923273 | 179 | { DRM_MODE_ENCODER_DSI, "DSI" }, |
182407a6 | 180 | { DRM_MODE_ENCODER_DPMST, "DP MST" }, |
f453ba04 DA |
181 | }; |
182 | ||
4dfd909f | 183 | static const struct drm_prop_enum_list drm_subpixel_enum_list[] = { |
ac1bb36c JB |
184 | { SubPixelUnknown, "Unknown" }, |
185 | { SubPixelHorizontalRGB, "Horizontal RGB" }, | |
186 | { SubPixelHorizontalBGR, "Horizontal BGR" }, | |
187 | { SubPixelVerticalRGB, "Vertical RGB" }, | |
188 | { SubPixelVerticalBGR, "Vertical BGR" }, | |
189 | { SubPixelNone, "None" }, | |
190 | }; | |
191 | ||
b21e3afe IM |
192 | void drm_connector_ida_init(void) |
193 | { | |
194 | int i; | |
195 | ||
196 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
197 | ida_init(&drm_connector_enum_list[i].ida); | |
198 | } | |
199 | ||
200 | void drm_connector_ida_destroy(void) | |
201 | { | |
202 | int i; | |
203 | ||
204 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
205 | ida_destroy(&drm_connector_enum_list[i].ida); | |
206 | } | |
207 | ||
c8e32cc1 DV |
208 | /** |
209 | * drm_get_connector_status_name - return a string for connector status | |
210 | * @status: connector status to compute name of | |
211 | * | |
212 | * In contrast to the other drm_get_*_name functions this one here returns a | |
213 | * const pointer and hence is threadsafe. | |
214 | */ | |
d20d3174 | 215 | const char *drm_get_connector_status_name(enum drm_connector_status status) |
f453ba04 DA |
216 | { |
217 | if (status == connector_status_connected) | |
218 | return "connected"; | |
219 | else if (status == connector_status_disconnected) | |
220 | return "disconnected"; | |
221 | else | |
222 | return "unknown"; | |
223 | } | |
ed7951dc | 224 | EXPORT_SYMBOL(drm_get_connector_status_name); |
f453ba04 | 225 | |
ac1bb36c JB |
226 | /** |
227 | * drm_get_subpixel_order_name - return a string for a given subpixel enum | |
228 | * @order: enum of subpixel_order | |
229 | * | |
230 | * Note you could abuse this and return something out of bounds, but that | |
231 | * would be a caller error. No unscrubbed user data should make it here. | |
232 | */ | |
233 | const char *drm_get_subpixel_order_name(enum subpixel_order order) | |
234 | { | |
235 | return drm_subpixel_enum_list[order].name; | |
236 | } | |
237 | EXPORT_SYMBOL(drm_get_subpixel_order_name); | |
238 | ||
6ba6d03e VS |
239 | static char printable_char(int c) |
240 | { | |
241 | return isascii(c) && isprint(c) ? c : '?'; | |
242 | } | |
243 | ||
c8e32cc1 DV |
244 | /** |
245 | * drm_get_format_name - return a string for drm fourcc format | |
246 | * @format: format to compute name of | |
247 | * | |
248 | * Note that the buffer used by this function is globally shared and owned by | |
249 | * the function itself. | |
250 | * | |
251 | * FIXME: This isn't really multithreading safe. | |
252 | */ | |
d20d3174 | 253 | const char *drm_get_format_name(uint32_t format) |
6ba6d03e VS |
254 | { |
255 | static char buf[32]; | |
256 | ||
257 | snprintf(buf, sizeof(buf), | |
258 | "%c%c%c%c %s-endian (0x%08x)", | |
259 | printable_char(format & 0xff), | |
260 | printable_char((format >> 8) & 0xff), | |
261 | printable_char((format >> 16) & 0xff), | |
262 | printable_char((format >> 24) & 0x7f), | |
263 | format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little", | |
264 | format); | |
265 | ||
266 | return buf; | |
267 | } | |
268 | EXPORT_SYMBOL(drm_get_format_name); | |
269 | ||
2ee39452 DA |
270 | /* |
271 | * Internal function to assign a slot in the object idr and optionally | |
272 | * register the object into the idr. | |
273 | */ | |
274 | static int drm_mode_object_get_reg(struct drm_device *dev, | |
275 | struct drm_mode_object *obj, | |
276 | uint32_t obj_type, | |
277 | bool register_obj) | |
278 | { | |
279 | int ret; | |
280 | ||
281 | mutex_lock(&dev->mode_config.idr_mutex); | |
282 | ret = idr_alloc(&dev->mode_config.crtc_idr, register_obj ? obj : NULL, 1, 0, GFP_KERNEL); | |
283 | if (ret >= 0) { | |
284 | /* | |
285 | * Set up the object linking under the protection of the idr | |
286 | * lock so that other users can't see inconsistent state. | |
287 | */ | |
288 | obj->id = ret; | |
289 | obj->type = obj_type; | |
290 | } | |
291 | mutex_unlock(&dev->mode_config.idr_mutex); | |
292 | ||
293 | return ret < 0 ? ret : 0; | |
294 | } | |
295 | ||
f453ba04 | 296 | /** |
065a50ed | 297 | * drm_mode_object_get - allocate a new modeset identifier |
f453ba04 | 298 | * @dev: DRM device |
065a50ed DV |
299 | * @obj: object pointer, used to generate unique ID |
300 | * @obj_type: object type | |
f453ba04 | 301 | * |
f453ba04 | 302 | * Create a unique identifier based on @ptr in @dev's identifier space. Used |
c8e32cc1 DV |
303 | * for tracking modes, CRTCs and connectors. Note that despite the _get postfix |
304 | * modeset identifiers are _not_ reference counted. Hence don't use this for | |
305 | * reference counted modeset objects like framebuffers. | |
f453ba04 | 306 | * |
c8e32cc1 | 307 | * Returns: |
f453ba04 DA |
308 | * New unique (relative to other objects in @dev) integer identifier for the |
309 | * object. | |
310 | */ | |
8bd441b2 DV |
311 | int drm_mode_object_get(struct drm_device *dev, |
312 | struct drm_mode_object *obj, uint32_t obj_type) | |
f453ba04 | 313 | { |
2ee39452 DA |
314 | return drm_mode_object_get_reg(dev, obj, obj_type, true); |
315 | } | |
f453ba04 | 316 | |
2ee39452 DA |
317 | static void drm_mode_object_register(struct drm_device *dev, |
318 | struct drm_mode_object *obj) | |
319 | { | |
ad2563c2 | 320 | mutex_lock(&dev->mode_config.idr_mutex); |
2ee39452 | 321 | idr_replace(&dev->mode_config.crtc_idr, obj, obj->id); |
ad2563c2 | 322 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
323 | } |
324 | ||
325 | /** | |
065a50ed | 326 | * drm_mode_object_put - free a modeset identifer |
f453ba04 | 327 | * @dev: DRM device |
065a50ed | 328 | * @object: object to free |
f453ba04 | 329 | * |
c8e32cc1 DV |
330 | * Free @id from @dev's unique identifier pool. Note that despite the _get |
331 | * postfix modeset identifiers are _not_ reference counted. Hence don't use this | |
332 | * for reference counted modeset objects like framebuffers. | |
f453ba04 | 333 | */ |
8bd441b2 DV |
334 | void drm_mode_object_put(struct drm_device *dev, |
335 | struct drm_mode_object *object) | |
f453ba04 | 336 | { |
ad2563c2 | 337 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 | 338 | idr_remove(&dev->mode_config.crtc_idr, object->id); |
ad2563c2 | 339 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
340 | } |
341 | ||
98f75de4 RC |
342 | static struct drm_mode_object *_object_find(struct drm_device *dev, |
343 | uint32_t id, uint32_t type) | |
344 | { | |
345 | struct drm_mode_object *obj = NULL; | |
346 | ||
347 | mutex_lock(&dev->mode_config.idr_mutex); | |
348 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
168c02ec DV |
349 | if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type) |
350 | obj = NULL; | |
351 | if (obj && obj->id != id) | |
352 | obj = NULL; | |
353 | /* don't leak out unref'd fb's */ | |
354 | if (obj && (obj->type == DRM_MODE_OBJECT_FB)) | |
98f75de4 RC |
355 | obj = NULL; |
356 | mutex_unlock(&dev->mode_config.idr_mutex); | |
357 | ||
358 | return obj; | |
359 | } | |
360 | ||
786b99ed DV |
361 | /** |
362 | * drm_mode_object_find - look up a drm object with static lifetime | |
363 | * @dev: drm device | |
364 | * @id: id of the mode object | |
365 | * @type: type of the mode object | |
366 | * | |
367 | * Note that framebuffers cannot be looked up with this functions - since those | |
98f75de4 RC |
368 | * are reference counted, they need special treatment. Even with |
369 | * DRM_MODE_OBJECT_ANY (although that will simply return NULL | |
370 | * rather than WARN_ON()). | |
786b99ed | 371 | */ |
7a9c9060 DV |
372 | struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
373 | uint32_t id, uint32_t type) | |
f453ba04 | 374 | { |
ad2563c2 | 375 | struct drm_mode_object *obj = NULL; |
f453ba04 | 376 | |
786b99ed DV |
377 | /* Framebuffers are reference counted and need their own lookup |
378 | * function.*/ | |
379 | WARN_ON(type == DRM_MODE_OBJECT_FB); | |
98f75de4 | 380 | obj = _object_find(dev, id, type); |
f453ba04 DA |
381 | return obj; |
382 | } | |
383 | EXPORT_SYMBOL(drm_mode_object_find); | |
384 | ||
f453ba04 DA |
385 | /** |
386 | * drm_framebuffer_init - initialize a framebuffer | |
387 | * @dev: DRM device | |
065a50ed DV |
388 | * @fb: framebuffer to be initialized |
389 | * @funcs: ... with these functions | |
f453ba04 | 390 | * |
f453ba04 DA |
391 | * Allocates an ID for the framebuffer's parent mode object, sets its mode |
392 | * functions & device file and adds it to the master fd list. | |
393 | * | |
4b096ac1 DV |
394 | * IMPORTANT: |
395 | * This functions publishes the fb and makes it available for concurrent access | |
396 | * by other users. Which means by this point the fb _must_ be fully set up - | |
397 | * since all the fb attributes are invariant over its lifetime, no further | |
398 | * locking but only correct reference counting is required. | |
399 | * | |
c8e32cc1 | 400 | * Returns: |
af901ca1 | 401 | * Zero on success, error code on failure. |
f453ba04 DA |
402 | */ |
403 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, | |
404 | const struct drm_framebuffer_funcs *funcs) | |
405 | { | |
406 | int ret; | |
407 | ||
4b096ac1 | 408 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e | 409 | kref_init(&fb->refcount); |
4b096ac1 DV |
410 | INIT_LIST_HEAD(&fb->filp_head); |
411 | fb->dev = dev; | |
412 | fb->funcs = funcs; | |
f7eff60e | 413 | |
f453ba04 | 414 | ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); |
6bfc56aa | 415 | if (ret) |
4b096ac1 | 416 | goto out; |
f453ba04 | 417 | |
f453ba04 DA |
418 | dev->mode_config.num_fb++; |
419 | list_add(&fb->head, &dev->mode_config.fb_list); | |
4b096ac1 DV |
420 | out: |
421 | mutex_unlock(&dev->mode_config.fb_lock); | |
f453ba04 DA |
422 | |
423 | return 0; | |
424 | } | |
425 | EXPORT_SYMBOL(drm_framebuffer_init); | |
426 | ||
83f45fc3 DV |
427 | /* dev->mode_config.fb_lock must be held! */ |
428 | static void __drm_framebuffer_unregister(struct drm_device *dev, | |
429 | struct drm_framebuffer *fb) | |
430 | { | |
431 | mutex_lock(&dev->mode_config.idr_mutex); | |
432 | idr_remove(&dev->mode_config.crtc_idr, fb->base.id); | |
433 | mutex_unlock(&dev->mode_config.idr_mutex); | |
434 | ||
435 | fb->base.id = 0; | |
436 | } | |
437 | ||
f7eff60e RC |
438 | static void drm_framebuffer_free(struct kref *kref) |
439 | { | |
440 | struct drm_framebuffer *fb = | |
441 | container_of(kref, struct drm_framebuffer, refcount); | |
83f45fc3 DV |
442 | struct drm_device *dev = fb->dev; |
443 | ||
444 | /* | |
445 | * The lookup idr holds a weak reference, which has not necessarily been | |
446 | * removed at this point. Check for that. | |
447 | */ | |
448 | mutex_lock(&dev->mode_config.fb_lock); | |
449 | if (fb->base.id) { | |
450 | /* Mark fb as reaped and drop idr ref. */ | |
451 | __drm_framebuffer_unregister(dev, fb); | |
452 | } | |
453 | mutex_unlock(&dev->mode_config.fb_lock); | |
454 | ||
f7eff60e RC |
455 | fb->funcs->destroy(fb); |
456 | } | |
457 | ||
2b677e8c DV |
458 | static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev, |
459 | uint32_t id) | |
460 | { | |
461 | struct drm_mode_object *obj = NULL; | |
462 | struct drm_framebuffer *fb; | |
463 | ||
464 | mutex_lock(&dev->mode_config.idr_mutex); | |
465 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
466 | if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id)) | |
467 | fb = NULL; | |
468 | else | |
469 | fb = obj_to_fb(obj); | |
470 | mutex_unlock(&dev->mode_config.idr_mutex); | |
471 | ||
472 | return fb; | |
473 | } | |
474 | ||
786b99ed DV |
475 | /** |
476 | * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference | |
477 | * @dev: drm device | |
478 | * @id: id of the fb object | |
479 | * | |
480 | * If successful, this grabs an additional reference to the framebuffer - | |
481 | * callers need to make sure to eventually unreference the returned framebuffer | |
c8e32cc1 | 482 | * again, using @drm_framebuffer_unreference. |
786b99ed DV |
483 | */ |
484 | struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, | |
485 | uint32_t id) | |
486 | { | |
786b99ed DV |
487 | struct drm_framebuffer *fb; |
488 | ||
489 | mutex_lock(&dev->mode_config.fb_lock); | |
2b677e8c | 490 | fb = __drm_framebuffer_lookup(dev, id); |
83f45fc3 DV |
491 | if (fb) { |
492 | if (!kref_get_unless_zero(&fb->refcount)) | |
493 | fb = NULL; | |
494 | } | |
786b99ed DV |
495 | mutex_unlock(&dev->mode_config.fb_lock); |
496 | ||
497 | return fb; | |
498 | } | |
499 | EXPORT_SYMBOL(drm_framebuffer_lookup); | |
500 | ||
f7eff60e RC |
501 | /** |
502 | * drm_framebuffer_unreference - unref a framebuffer | |
065a50ed DV |
503 | * @fb: framebuffer to unref |
504 | * | |
505 | * This functions decrements the fb's refcount and frees it if it drops to zero. | |
f7eff60e RC |
506 | */ |
507 | void drm_framebuffer_unreference(struct drm_framebuffer *fb) | |
508 | { | |
8291272a | 509 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
f7eff60e RC |
510 | kref_put(&fb->refcount, drm_framebuffer_free); |
511 | } | |
512 | EXPORT_SYMBOL(drm_framebuffer_unreference); | |
513 | ||
514 | /** | |
515 | * drm_framebuffer_reference - incr the fb refcnt | |
065a50ed | 516 | * @fb: framebuffer |
c8e32cc1 DV |
517 | * |
518 | * This functions increments the fb's refcount. | |
f7eff60e RC |
519 | */ |
520 | void drm_framebuffer_reference(struct drm_framebuffer *fb) | |
521 | { | |
8291272a | 522 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
f7eff60e RC |
523 | kref_get(&fb->refcount); |
524 | } | |
525 | EXPORT_SYMBOL(drm_framebuffer_reference); | |
526 | ||
2b677e8c DV |
527 | static void drm_framebuffer_free_bug(struct kref *kref) |
528 | { | |
529 | BUG(); | |
530 | } | |
531 | ||
6c2a7532 DV |
532 | static void __drm_framebuffer_unreference(struct drm_framebuffer *fb) |
533 | { | |
8291272a | 534 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
6c2a7532 DV |
535 | kref_put(&fb->refcount, drm_framebuffer_free_bug); |
536 | } | |
537 | ||
36206361 DV |
538 | /** |
539 | * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr | |
540 | * @fb: fb to unregister | |
541 | * | |
542 | * Drivers need to call this when cleaning up driver-private framebuffers, e.g. | |
543 | * those used for fbdev. Note that the caller must hold a reference of it's own, | |
544 | * i.e. the object may not be destroyed through this call (since it'll lead to a | |
545 | * locking inversion). | |
546 | */ | |
547 | void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) | |
548 | { | |
2b677e8c DV |
549 | struct drm_device *dev = fb->dev; |
550 | ||
551 | mutex_lock(&dev->mode_config.fb_lock); | |
552 | /* Mark fb as reaped and drop idr ref. */ | |
553 | __drm_framebuffer_unregister(dev, fb); | |
554 | mutex_unlock(&dev->mode_config.fb_lock); | |
36206361 DV |
555 | } |
556 | EXPORT_SYMBOL(drm_framebuffer_unregister_private); | |
557 | ||
f453ba04 DA |
558 | /** |
559 | * drm_framebuffer_cleanup - remove a framebuffer object | |
560 | * @fb: framebuffer to remove | |
561 | * | |
c8e32cc1 DV |
562 | * Cleanup framebuffer. This function is intended to be used from the drivers |
563 | * ->destroy callback. It can also be used to clean up driver private | |
564 | * framebuffers embedded into a larger structure. | |
36206361 DV |
565 | * |
566 | * Note that this function does not remove the fb from active usuage - if it is | |
567 | * still used anywhere, hilarity can ensue since userspace could call getfb on | |
568 | * the id and get back -EINVAL. Obviously no concern at driver unload time. | |
569 | * | |
570 | * Also, the framebuffer will not be removed from the lookup idr - for | |
571 | * user-created framebuffers this will happen in in the rmfb ioctl. For | |
572 | * driver-private objects (e.g. for fbdev) drivers need to explicitly call | |
573 | * drm_framebuffer_unregister_private. | |
f453ba04 DA |
574 | */ |
575 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) | |
f7eff60e RC |
576 | { |
577 | struct drm_device *dev = fb->dev; | |
8faf6b18 | 578 | |
4b096ac1 | 579 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e RC |
580 | list_del(&fb->head); |
581 | dev->mode_config.num_fb--; | |
4b096ac1 | 582 | mutex_unlock(&dev->mode_config.fb_lock); |
f7eff60e RC |
583 | } |
584 | EXPORT_SYMBOL(drm_framebuffer_cleanup); | |
585 | ||
586 | /** | |
587 | * drm_framebuffer_remove - remove and unreference a framebuffer object | |
588 | * @fb: framebuffer to remove | |
589 | * | |
f7eff60e | 590 | * Scans all the CRTCs and planes in @dev's mode_config. If they're |
36206361 | 591 | * using @fb, removes it, setting it to NULL. Then drops the reference to the |
b62584e3 DV |
592 | * passed-in framebuffer. Might take the modeset locks. |
593 | * | |
594 | * Note that this function optimizes the cleanup away if the caller holds the | |
595 | * last reference to the framebuffer. It is also guaranteed to not take the | |
596 | * modeset locks in this case. | |
f7eff60e RC |
597 | */ |
598 | void drm_framebuffer_remove(struct drm_framebuffer *fb) | |
f453ba04 DA |
599 | { |
600 | struct drm_device *dev = fb->dev; | |
601 | struct drm_crtc *crtc; | |
8cf5c917 | 602 | struct drm_plane *plane; |
5ef5f72f DA |
603 | struct drm_mode_set set; |
604 | int ret; | |
f453ba04 | 605 | |
4b096ac1 | 606 | WARN_ON(!list_empty(&fb->filp_head)); |
8faf6b18 | 607 | |
b62584e3 DV |
608 | /* |
609 | * drm ABI mandates that we remove any deleted framebuffers from active | |
610 | * useage. But since most sane clients only remove framebuffers they no | |
611 | * longer need, try to optimize this away. | |
612 | * | |
613 | * Since we're holding a reference ourselves, observing a refcount of 1 | |
614 | * means that we're the last holder and can skip it. Also, the refcount | |
615 | * can never increase from 1 again, so we don't need any barriers or | |
616 | * locks. | |
617 | * | |
618 | * Note that userspace could try to race with use and instate a new | |
619 | * usage _after_ we've cleared all current ones. End result will be an | |
620 | * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot | |
621 | * in this manner. | |
622 | */ | |
623 | if (atomic_read(&fb->refcount.refcount) > 1) { | |
624 | drm_modeset_lock_all(dev); | |
625 | /* remove from any CRTC */ | |
626 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
f4510a27 | 627 | if (crtc->primary->fb == fb) { |
b62584e3 DV |
628 | /* should turn off the crtc */ |
629 | memset(&set, 0, sizeof(struct drm_mode_set)); | |
630 | set.crtc = crtc; | |
631 | set.fb = NULL; | |
632 | ret = drm_mode_set_config_internal(&set); | |
633 | if (ret) | |
634 | DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); | |
635 | } | |
5ef5f72f | 636 | } |
f453ba04 | 637 | |
b62584e3 | 638 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) { |
9125e618 VS |
639 | if (plane->fb == fb) |
640 | drm_plane_force_disable(plane); | |
8cf5c917 | 641 | } |
b62584e3 | 642 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
643 | } |
644 | ||
f7eff60e | 645 | drm_framebuffer_unreference(fb); |
f453ba04 | 646 | } |
f7eff60e | 647 | EXPORT_SYMBOL(drm_framebuffer_remove); |
f453ba04 | 648 | |
51fd371b RC |
649 | DEFINE_WW_CLASS(crtc_ww_class); |
650 | ||
f453ba04 | 651 | /** |
e13161af MR |
652 | * drm_crtc_init_with_planes - Initialise a new CRTC object with |
653 | * specified primary and cursor planes. | |
f453ba04 DA |
654 | * @dev: DRM device |
655 | * @crtc: CRTC object to init | |
e13161af MR |
656 | * @primary: Primary plane for CRTC |
657 | * @cursor: Cursor plane for CRTC | |
f453ba04 DA |
658 | * @funcs: callbacks for the new CRTC |
659 | * | |
ad6f5c34 | 660 | * Inits a new object created as base part of a driver crtc object. |
6bfc56aa | 661 | * |
c8e32cc1 | 662 | * Returns: |
6bfc56aa | 663 | * Zero on success, error code on failure. |
f453ba04 | 664 | */ |
e13161af MR |
665 | int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, |
666 | struct drm_plane *primary, | |
fc1d3e44 | 667 | struct drm_plane *cursor, |
e13161af | 668 | const struct drm_crtc_funcs *funcs) |
f453ba04 | 669 | { |
51fd371b | 670 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
671 | int ret; |
672 | ||
f453ba04 DA |
673 | crtc->dev = dev; |
674 | crtc->funcs = funcs; | |
7c80e128 | 675 | crtc->invert_dimensions = false; |
f453ba04 | 676 | |
51fd371b | 677 | drm_modeset_lock_init(&crtc->mutex); |
6bfc56aa VS |
678 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); |
679 | if (ret) | |
baf698b0 | 680 | return ret; |
f453ba04 | 681 | |
bffd9de0 PZ |
682 | crtc->base.properties = &crtc->properties; |
683 | ||
51fd371b RC |
684 | list_add_tail(&crtc->head, &config->crtc_list); |
685 | config->num_crtc++; | |
6bfc56aa | 686 | |
e13161af | 687 | crtc->primary = primary; |
fc1d3e44 | 688 | crtc->cursor = cursor; |
e13161af MR |
689 | if (primary) |
690 | primary->possible_crtcs = 1 << drm_crtc_index(crtc); | |
fc1d3e44 MR |
691 | if (cursor) |
692 | cursor->possible_crtcs = 1 << drm_crtc_index(crtc); | |
e13161af | 693 | |
eab3bbef DV |
694 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
695 | drm_object_attach_property(&crtc->base, config->prop_active, 0); | |
696 | } | |
697 | ||
baf698b0 | 698 | return 0; |
f453ba04 | 699 | } |
e13161af | 700 | EXPORT_SYMBOL(drm_crtc_init_with_planes); |
f453ba04 DA |
701 | |
702 | /** | |
ad6f5c34 | 703 | * drm_crtc_cleanup - Clean up the core crtc usage |
f453ba04 DA |
704 | * @crtc: CRTC to cleanup |
705 | * | |
ad6f5c34 VS |
706 | * This function cleans up @crtc and removes it from the DRM mode setting |
707 | * core. Note that the function does *not* free the crtc structure itself, | |
708 | * this is the responsibility of the caller. | |
f453ba04 DA |
709 | */ |
710 | void drm_crtc_cleanup(struct drm_crtc *crtc) | |
711 | { | |
712 | struct drm_device *dev = crtc->dev; | |
713 | ||
9e1c156f SK |
714 | kfree(crtc->gamma_store); |
715 | crtc->gamma_store = NULL; | |
f453ba04 | 716 | |
51fd371b RC |
717 | drm_modeset_lock_fini(&crtc->mutex); |
718 | ||
f453ba04 DA |
719 | drm_mode_object_put(dev, &crtc->base); |
720 | list_del(&crtc->head); | |
721 | dev->mode_config.num_crtc--; | |
3009c037 TR |
722 | |
723 | WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); | |
724 | if (crtc->state && crtc->funcs->atomic_destroy_state) | |
725 | crtc->funcs->atomic_destroy_state(crtc, crtc->state); | |
a18c0af1 TR |
726 | |
727 | memset(crtc, 0, sizeof(*crtc)); | |
f453ba04 DA |
728 | } |
729 | EXPORT_SYMBOL(drm_crtc_cleanup); | |
730 | ||
db5f7a6e RK |
731 | /** |
732 | * drm_crtc_index - find the index of a registered CRTC | |
733 | * @crtc: CRTC to find index for | |
734 | * | |
735 | * Given a registered CRTC, return the index of that CRTC within a DRM | |
736 | * device's list of CRTCs. | |
737 | */ | |
738 | unsigned int drm_crtc_index(struct drm_crtc *crtc) | |
739 | { | |
740 | unsigned int index = 0; | |
741 | struct drm_crtc *tmp; | |
742 | ||
743 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { | |
744 | if (tmp == crtc) | |
745 | return index; | |
746 | ||
747 | index++; | |
748 | } | |
749 | ||
750 | BUG(); | |
751 | } | |
752 | EXPORT_SYMBOL(drm_crtc_index); | |
753 | ||
86f422d5 | 754 | /* |
f453ba04 DA |
755 | * drm_mode_remove - remove and free a mode |
756 | * @connector: connector list to modify | |
757 | * @mode: mode to remove | |
758 | * | |
f453ba04 DA |
759 | * Remove @mode from @connector's mode list, then free it. |
760 | */ | |
86f422d5 LD |
761 | static void drm_mode_remove(struct drm_connector *connector, |
762 | struct drm_display_mode *mode) | |
f453ba04 DA |
763 | { |
764 | list_del(&mode->head); | |
554f1d78 | 765 | drm_mode_destroy(connector->dev, mode); |
f453ba04 | 766 | } |
f453ba04 | 767 | |
b5571e9d BB |
768 | /** |
769 | * drm_display_info_set_bus_formats - set the supported bus formats | |
770 | * @info: display info to store bus formats in | |
e37bfa1a BB |
771 | * @formats: array containing the supported bus formats |
772 | * @num_formats: the number of entries in the fmts array | |
b5571e9d BB |
773 | * |
774 | * Store the supported bus formats in display info structure. | |
775 | * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for | |
776 | * a full list of available formats. | |
777 | */ | |
778 | int drm_display_info_set_bus_formats(struct drm_display_info *info, | |
779 | const u32 *formats, | |
780 | unsigned int num_formats) | |
781 | { | |
782 | u32 *fmts = NULL; | |
783 | ||
784 | if (!formats && num_formats) | |
785 | return -EINVAL; | |
786 | ||
787 | if (formats && num_formats) { | |
788 | fmts = kmemdup(formats, sizeof(*formats) * num_formats, | |
789 | GFP_KERNEL); | |
944579c5 | 790 | if (!fmts) |
b5571e9d BB |
791 | return -ENOMEM; |
792 | } | |
793 | ||
794 | kfree(info->bus_formats); | |
795 | info->bus_formats = fmts; | |
796 | info->num_bus_formats = num_formats; | |
797 | ||
798 | return 0; | |
799 | } | |
800 | EXPORT_SYMBOL(drm_display_info_set_bus_formats); | |
801 | ||
eaf99c74 CW |
802 | /** |
803 | * drm_connector_get_cmdline_mode - reads the user's cmdline mode | |
804 | * @connector: connector to quwery | |
eaf99c74 CW |
805 | * |
806 | * The kernel supports per-connector configration of its consoles through | |
807 | * use of the video= parameter. This function parses that option and | |
808 | * extracts the user's specified mode (or enable/disable status) for a | |
809 | * particular connector. This is typically only used during the early fbdev | |
810 | * setup. | |
811 | */ | |
812 | static void drm_connector_get_cmdline_mode(struct drm_connector *connector) | |
813 | { | |
814 | struct drm_cmdline_mode *mode = &connector->cmdline_mode; | |
815 | char *option = NULL; | |
816 | ||
817 | if (fb_get_options(connector->name, &option)) | |
818 | return; | |
819 | ||
820 | if (!drm_mode_parse_command_line_for_connector(option, | |
821 | connector, | |
822 | mode)) | |
823 | return; | |
824 | ||
825 | if (mode->force) { | |
826 | const char *s; | |
827 | ||
828 | switch (mode->force) { | |
829 | case DRM_FORCE_OFF: | |
830 | s = "OFF"; | |
831 | break; | |
832 | case DRM_FORCE_ON_DIGITAL: | |
833 | s = "ON - dig"; | |
834 | break; | |
835 | default: | |
836 | case DRM_FORCE_ON: | |
837 | s = "ON"; | |
838 | break; | |
839 | } | |
840 | ||
841 | DRM_INFO("forcing %s connector %s\n", connector->name, s); | |
842 | connector->force = mode->force; | |
843 | } | |
844 | ||
845 | DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", | |
846 | connector->name, | |
847 | mode->xres, mode->yres, | |
848 | mode->refresh_specified ? mode->refresh : 60, | |
849 | mode->rb ? " reduced blanking" : "", | |
850 | mode->margins ? " with margins" : "", | |
851 | mode->interlace ? " interlaced" : ""); | |
852 | } | |
853 | ||
f453ba04 DA |
854 | /** |
855 | * drm_connector_init - Init a preallocated connector | |
856 | * @dev: DRM device | |
857 | * @connector: the connector to init | |
858 | * @funcs: callbacks for this connector | |
065a50ed | 859 | * @connector_type: user visible type of the connector |
f453ba04 | 860 | * |
f453ba04 DA |
861 | * Initialises a preallocated connector. Connectors should be |
862 | * subclassed as part of driver connector objects. | |
6bfc56aa | 863 | * |
c8e32cc1 | 864 | * Returns: |
6bfc56aa | 865 | * Zero on success, error code on failure. |
f453ba04 | 866 | */ |
6bfc56aa VS |
867 | int drm_connector_init(struct drm_device *dev, |
868 | struct drm_connector *connector, | |
869 | const struct drm_connector_funcs *funcs, | |
870 | int connector_type) | |
f453ba04 | 871 | { |
ae16c597 | 872 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa | 873 | int ret; |
b21e3afe IM |
874 | struct ida *connector_ida = |
875 | &drm_connector_enum_list[connector_type].ida; | |
6bfc56aa | 876 | |
84849903 | 877 | drm_modeset_lock_all(dev); |
f453ba04 | 878 | |
2ee39452 | 879 | ret = drm_mode_object_get_reg(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR, false); |
6bfc56aa | 880 | if (ret) |
2abdd313 | 881 | goto out_unlock; |
6bfc56aa | 882 | |
7e3bdf4a | 883 | connector->base.properties = &connector->properties; |
f453ba04 DA |
884 | connector->dev = dev; |
885 | connector->funcs = funcs; | |
f453ba04 DA |
886 | connector->connector_type = connector_type; |
887 | connector->connector_type_id = | |
b21e3afe IM |
888 | ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); |
889 | if (connector->connector_type_id < 0) { | |
890 | ret = connector->connector_type_id; | |
2abdd313 | 891 | goto out_put; |
b21e3afe | 892 | } |
2abdd313 JN |
893 | connector->name = |
894 | kasprintf(GFP_KERNEL, "%s-%d", | |
895 | drm_connector_enum_list[connector_type].name, | |
896 | connector->connector_type_id); | |
897 | if (!connector->name) { | |
898 | ret = -ENOMEM; | |
899 | goto out_put; | |
900 | } | |
901 | ||
f453ba04 DA |
902 | INIT_LIST_HEAD(&connector->probed_modes); |
903 | INIT_LIST_HEAD(&connector->modes); | |
904 | connector->edid_blob_ptr = NULL; | |
5e2cb2f6 | 905 | connector->status = connector_status_unknown; |
f453ba04 | 906 | |
eaf99c74 CW |
907 | drm_connector_get_cmdline_mode(connector); |
908 | ||
c7eb76f4 DV |
909 | /* We should add connectors at the end to avoid upsetting the connector |
910 | * index too much. */ | |
ae16c597 RC |
911 | list_add_tail(&connector->head, &config->connector_list); |
912 | config->num_connector++; | |
f453ba04 | 913 | |
a7331e5c | 914 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) |
58495563 | 915 | drm_object_attach_property(&connector->base, |
ae16c597 | 916 | config->edid_property, |
a7331e5c | 917 | 0); |
f453ba04 | 918 | |
58495563 | 919 | drm_object_attach_property(&connector->base, |
ae16c597 RC |
920 | config->dpms_property, 0); |
921 | ||
922 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { | |
923 | drm_object_attach_property(&connector->base, config->prop_crtc_id, 0); | |
924 | } | |
f453ba04 | 925 | |
30f65707 TW |
926 | connector->debugfs_entry = NULL; |
927 | ||
2abdd313 JN |
928 | out_put: |
929 | if (ret) | |
930 | drm_mode_object_put(dev, &connector->base); | |
931 | ||
932 | out_unlock: | |
84849903 | 933 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
934 | |
935 | return ret; | |
f453ba04 DA |
936 | } |
937 | EXPORT_SYMBOL(drm_connector_init); | |
938 | ||
939 | /** | |
940 | * drm_connector_cleanup - cleans up an initialised connector | |
941 | * @connector: connector to cleanup | |
942 | * | |
f453ba04 DA |
943 | * Cleans up the connector but doesn't free the object. |
944 | */ | |
945 | void drm_connector_cleanup(struct drm_connector *connector) | |
946 | { | |
947 | struct drm_device *dev = connector->dev; | |
948 | struct drm_display_mode *mode, *t; | |
949 | ||
40d9b043 DA |
950 | if (connector->tile_group) { |
951 | drm_mode_put_tile_group(dev, connector->tile_group); | |
952 | connector->tile_group = NULL; | |
953 | } | |
954 | ||
f453ba04 DA |
955 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) |
956 | drm_mode_remove(connector, mode); | |
957 | ||
958 | list_for_each_entry_safe(mode, t, &connector->modes, head) | |
959 | drm_mode_remove(connector, mode); | |
960 | ||
b21e3afe IM |
961 | ida_remove(&drm_connector_enum_list[connector->connector_type].ida, |
962 | connector->connector_type_id); | |
963 | ||
b5571e9d | 964 | kfree(connector->display_info.bus_formats); |
f453ba04 | 965 | drm_mode_object_put(dev, &connector->base); |
2abdd313 JN |
966 | kfree(connector->name); |
967 | connector->name = NULL; | |
f453ba04 | 968 | list_del(&connector->head); |
6380c509 | 969 | dev->mode_config.num_connector--; |
3009c037 TR |
970 | |
971 | WARN_ON(connector->state && !connector->funcs->atomic_destroy_state); | |
972 | if (connector->state && connector->funcs->atomic_destroy_state) | |
973 | connector->funcs->atomic_destroy_state(connector, | |
974 | connector->state); | |
a18c0af1 TR |
975 | |
976 | memset(connector, 0, sizeof(*connector)); | |
f453ba04 DA |
977 | } |
978 | EXPORT_SYMBOL(drm_connector_cleanup); | |
979 | ||
10f637bf DV |
980 | /** |
981 | * drm_connector_index - find the index of a registered connector | |
982 | * @connector: connector to find index for | |
983 | * | |
984 | * Given a registered connector, return the index of that connector within a DRM | |
985 | * device's list of connectors. | |
986 | */ | |
987 | unsigned int drm_connector_index(struct drm_connector *connector) | |
988 | { | |
989 | unsigned int index = 0; | |
990 | struct drm_connector *tmp; | |
c7eb76f4 DV |
991 | struct drm_mode_config *config = &connector->dev->mode_config; |
992 | ||
993 | WARN_ON(!drm_modeset_is_locked(&config->connection_mutex)); | |
10f637bf DV |
994 | |
995 | list_for_each_entry(tmp, &connector->dev->mode_config.connector_list, head) { | |
996 | if (tmp == connector) | |
997 | return index; | |
998 | ||
999 | index++; | |
1000 | } | |
1001 | ||
1002 | BUG(); | |
1003 | } | |
1004 | EXPORT_SYMBOL(drm_connector_index); | |
1005 | ||
34ea3d38 TW |
1006 | /** |
1007 | * drm_connector_register - register a connector | |
1008 | * @connector: the connector to register | |
1009 | * | |
1010 | * Register userspace interfaces for a connector | |
1011 | * | |
1012 | * Returns: | |
1013 | * Zero on success, error code on failure. | |
1014 | */ | |
1015 | int drm_connector_register(struct drm_connector *connector) | |
1016 | { | |
30f65707 TW |
1017 | int ret; |
1018 | ||
2ee39452 DA |
1019 | drm_mode_object_register(connector->dev, &connector->base); |
1020 | ||
30f65707 TW |
1021 | ret = drm_sysfs_connector_add(connector); |
1022 | if (ret) | |
1023 | return ret; | |
1024 | ||
1025 | ret = drm_debugfs_connector_add(connector); | |
1026 | if (ret) { | |
1027 | drm_sysfs_connector_remove(connector); | |
1028 | return ret; | |
1029 | } | |
1030 | ||
1031 | return 0; | |
34ea3d38 TW |
1032 | } |
1033 | EXPORT_SYMBOL(drm_connector_register); | |
1034 | ||
1035 | /** | |
1036 | * drm_connector_unregister - unregister a connector | |
1037 | * @connector: the connector to unregister | |
1038 | * | |
1039 | * Unregister userspace interfaces for a connector | |
1040 | */ | |
1041 | void drm_connector_unregister(struct drm_connector *connector) | |
1042 | { | |
1043 | drm_sysfs_connector_remove(connector); | |
30f65707 | 1044 | drm_debugfs_connector_remove(connector); |
34ea3d38 TW |
1045 | } |
1046 | EXPORT_SYMBOL(drm_connector_unregister); | |
1047 | ||
1048 | ||
c8e32cc1 DV |
1049 | /** |
1050 | * drm_connector_unplug_all - unregister connector userspace interfaces | |
1051 | * @dev: drm device | |
1052 | * | |
1053 | * This function unregisters all connector userspace interfaces in sysfs. Should | |
1054 | * be call when the device is disconnected, e.g. from an usb driver's | |
1055 | * ->disconnect callback. | |
1056 | */ | |
cbc7e221 DA |
1057 | void drm_connector_unplug_all(struct drm_device *dev) |
1058 | { | |
1059 | struct drm_connector *connector; | |
1060 | ||
1061 | /* taking the mode config mutex ends up in a clash with sysfs */ | |
1062 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
34ea3d38 | 1063 | drm_connector_unregister(connector); |
cbc7e221 DA |
1064 | |
1065 | } | |
1066 | EXPORT_SYMBOL(drm_connector_unplug_all); | |
1067 | ||
c8e32cc1 DV |
1068 | /** |
1069 | * drm_encoder_init - Init a preallocated encoder | |
1070 | * @dev: drm device | |
1071 | * @encoder: the encoder to init | |
1072 | * @funcs: callbacks for this encoder | |
1073 | * @encoder_type: user visible type of the encoder | |
1074 | * | |
1075 | * Initialises a preallocated encoder. Encoder should be | |
1076 | * subclassed as part of driver encoder objects. | |
1077 | * | |
1078 | * Returns: | |
1079 | * Zero on success, error code on failure. | |
1080 | */ | |
6bfc56aa | 1081 | int drm_encoder_init(struct drm_device *dev, |
cbc7e221 DA |
1082 | struct drm_encoder *encoder, |
1083 | const struct drm_encoder_funcs *funcs, | |
1084 | int encoder_type) | |
f453ba04 | 1085 | { |
6bfc56aa VS |
1086 | int ret; |
1087 | ||
84849903 | 1088 | drm_modeset_lock_all(dev); |
f453ba04 | 1089 | |
6bfc56aa VS |
1090 | ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
1091 | if (ret) | |
e5748946 | 1092 | goto out_unlock; |
f453ba04 | 1093 | |
6bfc56aa | 1094 | encoder->dev = dev; |
f453ba04 DA |
1095 | encoder->encoder_type = encoder_type; |
1096 | encoder->funcs = funcs; | |
e5748946 JN |
1097 | encoder->name = kasprintf(GFP_KERNEL, "%s-%d", |
1098 | drm_encoder_enum_list[encoder_type].name, | |
1099 | encoder->base.id); | |
1100 | if (!encoder->name) { | |
1101 | ret = -ENOMEM; | |
1102 | goto out_put; | |
1103 | } | |
f453ba04 DA |
1104 | |
1105 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); | |
1106 | dev->mode_config.num_encoder++; | |
1107 | ||
e5748946 JN |
1108 | out_put: |
1109 | if (ret) | |
1110 | drm_mode_object_put(dev, &encoder->base); | |
1111 | ||
1112 | out_unlock: | |
84849903 | 1113 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
1114 | |
1115 | return ret; | |
f453ba04 DA |
1116 | } |
1117 | EXPORT_SYMBOL(drm_encoder_init); | |
1118 | ||
c8e32cc1 DV |
1119 | /** |
1120 | * drm_encoder_cleanup - cleans up an initialised encoder | |
1121 | * @encoder: encoder to cleanup | |
1122 | * | |
1123 | * Cleans up the encoder but doesn't free the object. | |
1124 | */ | |
f453ba04 DA |
1125 | void drm_encoder_cleanup(struct drm_encoder *encoder) |
1126 | { | |
1127 | struct drm_device *dev = encoder->dev; | |
4dfd909f | 1128 | |
84849903 | 1129 | drm_modeset_lock_all(dev); |
f453ba04 | 1130 | drm_mode_object_put(dev, &encoder->base); |
e5748946 | 1131 | kfree(encoder->name); |
f453ba04 | 1132 | list_del(&encoder->head); |
6380c509 | 1133 | dev->mode_config.num_encoder--; |
84849903 | 1134 | drm_modeset_unlock_all(dev); |
a18c0af1 TR |
1135 | |
1136 | memset(encoder, 0, sizeof(*encoder)); | |
f453ba04 DA |
1137 | } |
1138 | EXPORT_SYMBOL(drm_encoder_cleanup); | |
1139 | ||
35f2c3ae | 1140 | /** |
dc415ff9 | 1141 | * drm_universal_plane_init - Initialize a new universal plane object |
35f2c3ae VS |
1142 | * @dev: DRM device |
1143 | * @plane: plane object to init | |
1144 | * @possible_crtcs: bitmask of possible CRTCs | |
1145 | * @funcs: callbacks for the new plane | |
1146 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1147 | * @format_count: number of elements in @formats | |
dc415ff9 | 1148 | * @type: type of plane (overlay, primary, cursor) |
35f2c3ae | 1149 | * |
dc415ff9 | 1150 | * Initializes a plane object of type @type. |
35f2c3ae | 1151 | * |
c8e32cc1 | 1152 | * Returns: |
35f2c3ae VS |
1153 | * Zero on success, error code on failure. |
1154 | */ | |
dc415ff9 MR |
1155 | int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, |
1156 | unsigned long possible_crtcs, | |
1157 | const struct drm_plane_funcs *funcs, | |
1158 | const uint32_t *formats, uint32_t format_count, | |
1159 | enum drm_plane_type type) | |
8cf5c917 | 1160 | { |
6b4959f4 | 1161 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
1162 | int ret; |
1163 | ||
6bfc56aa VS |
1164 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
1165 | if (ret) | |
baf698b0 | 1166 | return ret; |
6bfc56aa | 1167 | |
4d02e2de DV |
1168 | drm_modeset_lock_init(&plane->mutex); |
1169 | ||
4d93914a | 1170 | plane->base.properties = &plane->properties; |
8cf5c917 | 1171 | plane->dev = dev; |
8cf5c917 | 1172 | plane->funcs = funcs; |
2f6c5389 TR |
1173 | plane->format_types = kmalloc_array(format_count, sizeof(uint32_t), |
1174 | GFP_KERNEL); | |
8cf5c917 JB |
1175 | if (!plane->format_types) { |
1176 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); | |
1177 | drm_mode_object_put(dev, &plane->base); | |
baf698b0 | 1178 | return -ENOMEM; |
8cf5c917 JB |
1179 | } |
1180 | ||
308e5bcb | 1181 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
8cf5c917 JB |
1182 | plane->format_count = format_count; |
1183 | plane->possible_crtcs = possible_crtcs; | |
dc415ff9 | 1184 | plane->type = type; |
8cf5c917 | 1185 | |
6b4959f4 RC |
1186 | list_add_tail(&plane->head, &config->plane_list); |
1187 | config->num_total_plane++; | |
dc415ff9 | 1188 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) |
6b4959f4 | 1189 | config->num_overlay_plane++; |
8cf5c917 | 1190 | |
9922ab5a | 1191 | drm_object_attach_property(&plane->base, |
6b4959f4 | 1192 | config->plane_type_property, |
9922ab5a RC |
1193 | plane->type); |
1194 | ||
6b4959f4 RC |
1195 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
1196 | drm_object_attach_property(&plane->base, config->prop_fb_id, 0); | |
1197 | drm_object_attach_property(&plane->base, config->prop_crtc_id, 0); | |
1198 | drm_object_attach_property(&plane->base, config->prop_crtc_x, 0); | |
1199 | drm_object_attach_property(&plane->base, config->prop_crtc_y, 0); | |
1200 | drm_object_attach_property(&plane->base, config->prop_crtc_w, 0); | |
1201 | drm_object_attach_property(&plane->base, config->prop_crtc_h, 0); | |
1202 | drm_object_attach_property(&plane->base, config->prop_src_x, 0); | |
1203 | drm_object_attach_property(&plane->base, config->prop_src_y, 0); | |
1204 | drm_object_attach_property(&plane->base, config->prop_src_w, 0); | |
1205 | drm_object_attach_property(&plane->base, config->prop_src_h, 0); | |
1206 | } | |
1207 | ||
baf698b0 | 1208 | return 0; |
8cf5c917 | 1209 | } |
dc415ff9 MR |
1210 | EXPORT_SYMBOL(drm_universal_plane_init); |
1211 | ||
1212 | /** | |
1213 | * drm_plane_init - Initialize a legacy plane | |
1214 | * @dev: DRM device | |
1215 | * @plane: plane object to init | |
1216 | * @possible_crtcs: bitmask of possible CRTCs | |
1217 | * @funcs: callbacks for the new plane | |
1218 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1219 | * @format_count: number of elements in @formats | |
1220 | * @is_primary: plane type (primary vs overlay) | |
1221 | * | |
1222 | * Legacy API to initialize a DRM plane. | |
1223 | * | |
1224 | * New drivers should call drm_universal_plane_init() instead. | |
1225 | * | |
1226 | * Returns: | |
1227 | * Zero on success, error code on failure. | |
1228 | */ | |
1229 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, | |
1230 | unsigned long possible_crtcs, | |
1231 | const struct drm_plane_funcs *funcs, | |
1232 | const uint32_t *formats, uint32_t format_count, | |
1233 | bool is_primary) | |
1234 | { | |
1235 | enum drm_plane_type type; | |
1236 | ||
1237 | type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; | |
1238 | return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, | |
1239 | formats, format_count, type); | |
1240 | } | |
8cf5c917 JB |
1241 | EXPORT_SYMBOL(drm_plane_init); |
1242 | ||
35f2c3ae VS |
1243 | /** |
1244 | * drm_plane_cleanup - Clean up the core plane usage | |
1245 | * @plane: plane to cleanup | |
1246 | * | |
1247 | * This function cleans up @plane and removes it from the DRM mode setting | |
1248 | * core. Note that the function does *not* free the plane structure itself, | |
1249 | * this is the responsibility of the caller. | |
1250 | */ | |
8cf5c917 JB |
1251 | void drm_plane_cleanup(struct drm_plane *plane) |
1252 | { | |
1253 | struct drm_device *dev = plane->dev; | |
1254 | ||
84849903 | 1255 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1256 | kfree(plane->format_types); |
1257 | drm_mode_object_put(dev, &plane->base); | |
dc415ff9 MR |
1258 | |
1259 | BUG_ON(list_empty(&plane->head)); | |
1260 | ||
1261 | list_del(&plane->head); | |
1262 | dev->mode_config.num_total_plane--; | |
1263 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) | |
1264 | dev->mode_config.num_overlay_plane--; | |
84849903 | 1265 | drm_modeset_unlock_all(dev); |
3009c037 TR |
1266 | |
1267 | WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); | |
1268 | if (plane->state && plane->funcs->atomic_destroy_state) | |
1269 | plane->funcs->atomic_destroy_state(plane, plane->state); | |
a18c0af1 TR |
1270 | |
1271 | memset(plane, 0, sizeof(*plane)); | |
8cf5c917 JB |
1272 | } |
1273 | EXPORT_SYMBOL(drm_plane_cleanup); | |
1274 | ||
10f637bf DV |
1275 | /** |
1276 | * drm_plane_index - find the index of a registered plane | |
1277 | * @plane: plane to find index for | |
1278 | * | |
1279 | * Given a registered plane, return the index of that CRTC within a DRM | |
1280 | * device's list of planes. | |
1281 | */ | |
1282 | unsigned int drm_plane_index(struct drm_plane *plane) | |
1283 | { | |
1284 | unsigned int index = 0; | |
1285 | struct drm_plane *tmp; | |
1286 | ||
1287 | list_for_each_entry(tmp, &plane->dev->mode_config.plane_list, head) { | |
1288 | if (tmp == plane) | |
1289 | return index; | |
1290 | ||
1291 | index++; | |
1292 | } | |
1293 | ||
1294 | BUG(); | |
1295 | } | |
1296 | EXPORT_SYMBOL(drm_plane_index); | |
1297 | ||
35f2c3ae VS |
1298 | /** |
1299 | * drm_plane_force_disable - Forcibly disable a plane | |
1300 | * @plane: plane to disable | |
1301 | * | |
1302 | * Forces the plane to be disabled. | |
1303 | * | |
1304 | * Used when the plane's current framebuffer is destroyed, | |
1305 | * and when restoring fbdev mode. | |
1306 | */ | |
9125e618 VS |
1307 | void drm_plane_force_disable(struct drm_plane *plane) |
1308 | { | |
1309 | int ret; | |
1310 | ||
3d30a59b | 1311 | if (!plane->fb) |
9125e618 VS |
1312 | return; |
1313 | ||
3d30a59b | 1314 | plane->old_fb = plane->fb; |
9125e618 | 1315 | ret = plane->funcs->disable_plane(plane); |
731cce48 | 1316 | if (ret) { |
9125e618 | 1317 | DRM_ERROR("failed to disable plane with busy fb\n"); |
3d30a59b | 1318 | plane->old_fb = NULL; |
731cce48 DV |
1319 | return; |
1320 | } | |
9125e618 | 1321 | /* disconnect the plane from the fb and crtc: */ |
3d30a59b DV |
1322 | __drm_framebuffer_unreference(plane->old_fb); |
1323 | plane->old_fb = NULL; | |
9125e618 VS |
1324 | plane->fb = NULL; |
1325 | plane->crtc = NULL; | |
1326 | } | |
1327 | EXPORT_SYMBOL(drm_plane_force_disable); | |
1328 | ||
6b4959f4 | 1329 | static int drm_mode_create_standard_properties(struct drm_device *dev) |
f453ba04 | 1330 | { |
356af0e1 | 1331 | struct drm_property *prop; |
f453ba04 DA |
1332 | |
1333 | /* | |
1334 | * Standard properties (apply to all connectors) | |
1335 | */ | |
356af0e1 | 1336 | prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | |
f453ba04 DA |
1337 | DRM_MODE_PROP_IMMUTABLE, |
1338 | "EDID", 0); | |
356af0e1 RC |
1339 | if (!prop) |
1340 | return -ENOMEM; | |
1341 | dev->mode_config.edid_property = prop; | |
f453ba04 | 1342 | |
356af0e1 | 1343 | prop = drm_property_create_enum(dev, 0, |
4a67d391 SH |
1344 | "DPMS", drm_dpms_enum_list, |
1345 | ARRAY_SIZE(drm_dpms_enum_list)); | |
356af0e1 RC |
1346 | if (!prop) |
1347 | return -ENOMEM; | |
1348 | dev->mode_config.dpms_property = prop; | |
6f134d7b | 1349 | |
356af0e1 RC |
1350 | prop = drm_property_create(dev, |
1351 | DRM_MODE_PROP_BLOB | | |
1352 | DRM_MODE_PROP_IMMUTABLE, | |
1353 | "PATH", 0); | |
1354 | if (!prop) | |
1355 | return -ENOMEM; | |
1356 | dev->mode_config.path_property = prop; | |
f453ba04 | 1357 | |
356af0e1 RC |
1358 | prop = drm_property_create(dev, |
1359 | DRM_MODE_PROP_BLOB | | |
1360 | DRM_MODE_PROP_IMMUTABLE, | |
1361 | "TILE", 0); | |
1362 | if (!prop) | |
1363 | return -ENOMEM; | |
1364 | dev->mode_config.tile_property = prop; | |
9922ab5a | 1365 | |
6b4959f4 | 1366 | prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
9922ab5a RC |
1367 | "type", drm_plane_type_enum_list, |
1368 | ARRAY_SIZE(drm_plane_type_enum_list)); | |
6b4959f4 RC |
1369 | if (!prop) |
1370 | return -ENOMEM; | |
1371 | dev->mode_config.plane_type_property = prop; | |
1372 | ||
1373 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1374 | "SRC_X", 0, UINT_MAX); | |
1375 | if (!prop) | |
1376 | return -ENOMEM; | |
1377 | dev->mode_config.prop_src_x = prop; | |
1378 | ||
1379 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1380 | "SRC_Y", 0, UINT_MAX); | |
1381 | if (!prop) | |
1382 | return -ENOMEM; | |
1383 | dev->mode_config.prop_src_y = prop; | |
1384 | ||
1385 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1386 | "SRC_W", 0, UINT_MAX); | |
1387 | if (!prop) | |
1388 | return -ENOMEM; | |
1389 | dev->mode_config.prop_src_w = prop; | |
1390 | ||
1391 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1392 | "SRC_H", 0, UINT_MAX); | |
1393 | if (!prop) | |
1394 | return -ENOMEM; | |
1395 | dev->mode_config.prop_src_h = prop; | |
1396 | ||
1397 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
1398 | "CRTC_X", INT_MIN, INT_MAX); | |
1399 | if (!prop) | |
1400 | return -ENOMEM; | |
1401 | dev->mode_config.prop_crtc_x = prop; | |
1402 | ||
1403 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
1404 | "CRTC_Y", INT_MIN, INT_MAX); | |
1405 | if (!prop) | |
1406 | return -ENOMEM; | |
1407 | dev->mode_config.prop_crtc_y = prop; | |
1408 | ||
1409 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1410 | "CRTC_W", 0, INT_MAX); | |
1411 | if (!prop) | |
1412 | return -ENOMEM; | |
1413 | dev->mode_config.prop_crtc_w = prop; | |
1414 | ||
1415 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1416 | "CRTC_H", 0, INT_MAX); | |
1417 | if (!prop) | |
1418 | return -ENOMEM; | |
1419 | dev->mode_config.prop_crtc_h = prop; | |
1420 | ||
1421 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, | |
1422 | "FB_ID", DRM_MODE_OBJECT_FB); | |
1423 | if (!prop) | |
1424 | return -ENOMEM; | |
1425 | dev->mode_config.prop_fb_id = prop; | |
1426 | ||
1427 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, | |
1428 | "CRTC_ID", DRM_MODE_OBJECT_CRTC); | |
1429 | if (!prop) | |
1430 | return -ENOMEM; | |
1431 | dev->mode_config.prop_crtc_id = prop; | |
9922ab5a | 1432 | |
eab3bbef DV |
1433 | prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, |
1434 | "ACTIVE"); | |
1435 | if (!prop) | |
1436 | return -ENOMEM; | |
1437 | dev->mode_config.prop_active = prop; | |
1438 | ||
9922ab5a RC |
1439 | return 0; |
1440 | } | |
1441 | ||
f453ba04 DA |
1442 | /** |
1443 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties | |
1444 | * @dev: DRM device | |
1445 | * | |
1446 | * Called by a driver the first time a DVI-I connector is made. | |
1447 | */ | |
1448 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) | |
1449 | { | |
1450 | struct drm_property *dvi_i_selector; | |
1451 | struct drm_property *dvi_i_subconnector; | |
f453ba04 DA |
1452 | |
1453 | if (dev->mode_config.dvi_i_select_subconnector_property) | |
1454 | return 0; | |
1455 | ||
1456 | dvi_i_selector = | |
4a67d391 | 1457 | drm_property_create_enum(dev, 0, |
f453ba04 | 1458 | "select subconnector", |
4a67d391 | 1459 | drm_dvi_i_select_enum_list, |
f453ba04 | 1460 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
f453ba04 DA |
1461 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
1462 | ||
4a67d391 | 1463 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
f453ba04 | 1464 | "subconnector", |
4a67d391 | 1465 | drm_dvi_i_subconnector_enum_list, |
f453ba04 | 1466 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
f453ba04 DA |
1467 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
1468 | ||
1469 | return 0; | |
1470 | } | |
1471 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); | |
1472 | ||
1473 | /** | |
1474 | * drm_create_tv_properties - create TV specific connector properties | |
1475 | * @dev: DRM device | |
1476 | * @num_modes: number of different TV formats (modes) supported | |
1477 | * @modes: array of pointers to strings containing name of each format | |
1478 | * | |
1479 | * Called by a driver's TV initialization routine, this function creates | |
1480 | * the TV specific connector properties for a given device. Caller is | |
1481 | * responsible for allocating a list of format names and passing them to | |
1482 | * this routine. | |
1483 | */ | |
2f763312 TR |
1484 | int drm_mode_create_tv_properties(struct drm_device *dev, |
1485 | unsigned int num_modes, | |
f453ba04 DA |
1486 | char *modes[]) |
1487 | { | |
1488 | struct drm_property *tv_selector; | |
1489 | struct drm_property *tv_subconnector; | |
2f763312 | 1490 | unsigned int i; |
f453ba04 DA |
1491 | |
1492 | if (dev->mode_config.tv_select_subconnector_property) | |
1493 | return 0; | |
1494 | ||
1495 | /* | |
1496 | * Basic connector properties | |
1497 | */ | |
4a67d391 | 1498 | tv_selector = drm_property_create_enum(dev, 0, |
f453ba04 | 1499 | "select subconnector", |
4a67d391 | 1500 | drm_tv_select_enum_list, |
f453ba04 | 1501 | ARRAY_SIZE(drm_tv_select_enum_list)); |
f453ba04 DA |
1502 | dev->mode_config.tv_select_subconnector_property = tv_selector; |
1503 | ||
1504 | tv_subconnector = | |
4a67d391 SH |
1505 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1506 | "subconnector", | |
1507 | drm_tv_subconnector_enum_list, | |
f453ba04 | 1508 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
f453ba04 DA |
1509 | dev->mode_config.tv_subconnector_property = tv_subconnector; |
1510 | ||
1511 | /* | |
1512 | * Other, TV specific properties: margins & TV modes. | |
1513 | */ | |
1514 | dev->mode_config.tv_left_margin_property = | |
d9bc3c02 | 1515 | drm_property_create_range(dev, 0, "left margin", 0, 100); |
f453ba04 DA |
1516 | |
1517 | dev->mode_config.tv_right_margin_property = | |
d9bc3c02 | 1518 | drm_property_create_range(dev, 0, "right margin", 0, 100); |
f453ba04 DA |
1519 | |
1520 | dev->mode_config.tv_top_margin_property = | |
d9bc3c02 | 1521 | drm_property_create_range(dev, 0, "top margin", 0, 100); |
f453ba04 DA |
1522 | |
1523 | dev->mode_config.tv_bottom_margin_property = | |
d9bc3c02 | 1524 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); |
f453ba04 DA |
1525 | |
1526 | dev->mode_config.tv_mode_property = | |
1527 | drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
1528 | "mode", num_modes); | |
1529 | for (i = 0; i < num_modes; i++) | |
1530 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, | |
1531 | i, modes[i]); | |
1532 | ||
b6b7902e | 1533 | dev->mode_config.tv_brightness_property = |
d9bc3c02 | 1534 | drm_property_create_range(dev, 0, "brightness", 0, 100); |
b6b7902e FJ |
1535 | |
1536 | dev->mode_config.tv_contrast_property = | |
d9bc3c02 | 1537 | drm_property_create_range(dev, 0, "contrast", 0, 100); |
b6b7902e FJ |
1538 | |
1539 | dev->mode_config.tv_flicker_reduction_property = | |
d9bc3c02 | 1540 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); |
b6b7902e | 1541 | |
a75f0236 | 1542 | dev->mode_config.tv_overscan_property = |
d9bc3c02 | 1543 | drm_property_create_range(dev, 0, "overscan", 0, 100); |
a75f0236 FJ |
1544 | |
1545 | dev->mode_config.tv_saturation_property = | |
d9bc3c02 | 1546 | drm_property_create_range(dev, 0, "saturation", 0, 100); |
a75f0236 FJ |
1547 | |
1548 | dev->mode_config.tv_hue_property = | |
d9bc3c02 | 1549 | drm_property_create_range(dev, 0, "hue", 0, 100); |
a75f0236 | 1550 | |
f453ba04 DA |
1551 | return 0; |
1552 | } | |
1553 | EXPORT_SYMBOL(drm_mode_create_tv_properties); | |
1554 | ||
1555 | /** | |
1556 | * drm_mode_create_scaling_mode_property - create scaling mode property | |
1557 | * @dev: DRM device | |
1558 | * | |
1559 | * Called by a driver the first time it's needed, must be attached to desired | |
1560 | * connectors. | |
1561 | */ | |
1562 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) | |
1563 | { | |
1564 | struct drm_property *scaling_mode; | |
f453ba04 DA |
1565 | |
1566 | if (dev->mode_config.scaling_mode_property) | |
1567 | return 0; | |
1568 | ||
1569 | scaling_mode = | |
4a67d391 SH |
1570 | drm_property_create_enum(dev, 0, "scaling mode", |
1571 | drm_scaling_mode_enum_list, | |
f453ba04 | 1572 | ARRAY_SIZE(drm_scaling_mode_enum_list)); |
f453ba04 DA |
1573 | |
1574 | dev->mode_config.scaling_mode_property = scaling_mode; | |
1575 | ||
1576 | return 0; | |
1577 | } | |
1578 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); | |
1579 | ||
ff587e45 VK |
1580 | /** |
1581 | * drm_mode_create_aspect_ratio_property - create aspect ratio property | |
1582 | * @dev: DRM device | |
1583 | * | |
1584 | * Called by a driver the first time it's needed, must be attached to desired | |
1585 | * connectors. | |
1586 | * | |
1587 | * Returns: | |
1a498633 | 1588 | * Zero on success, negative errno on failure. |
ff587e45 VK |
1589 | */ |
1590 | int drm_mode_create_aspect_ratio_property(struct drm_device *dev) | |
1591 | { | |
1592 | if (dev->mode_config.aspect_ratio_property) | |
1593 | return 0; | |
1594 | ||
1595 | dev->mode_config.aspect_ratio_property = | |
1596 | drm_property_create_enum(dev, 0, "aspect ratio", | |
1597 | drm_aspect_ratio_enum_list, | |
1598 | ARRAY_SIZE(drm_aspect_ratio_enum_list)); | |
1599 | ||
1600 | if (dev->mode_config.aspect_ratio_property == NULL) | |
1601 | return -ENOMEM; | |
1602 | ||
1603 | return 0; | |
1604 | } | |
1605 | EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); | |
1606 | ||
884840aa JB |
1607 | /** |
1608 | * drm_mode_create_dirty_property - create dirty property | |
1609 | * @dev: DRM device | |
1610 | * | |
1611 | * Called by a driver the first time it's needed, must be attached to desired | |
1612 | * connectors. | |
1613 | */ | |
1614 | int drm_mode_create_dirty_info_property(struct drm_device *dev) | |
1615 | { | |
1616 | struct drm_property *dirty_info; | |
884840aa JB |
1617 | |
1618 | if (dev->mode_config.dirty_info_property) | |
1619 | return 0; | |
1620 | ||
1621 | dirty_info = | |
4a67d391 | 1622 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
884840aa | 1623 | "dirty", |
4a67d391 | 1624 | drm_dirty_info_enum_list, |
884840aa | 1625 | ARRAY_SIZE(drm_dirty_info_enum_list)); |
884840aa JB |
1626 | dev->mode_config.dirty_info_property = dirty_info; |
1627 | ||
1628 | return 0; | |
1629 | } | |
1630 | EXPORT_SYMBOL(drm_mode_create_dirty_info_property); | |
1631 | ||
5bb2bbf5 DA |
1632 | /** |
1633 | * drm_mode_create_suggested_offset_properties - create suggests offset properties | |
1634 | * @dev: DRM device | |
1635 | * | |
1636 | * Create the the suggested x/y offset property for connectors. | |
1637 | */ | |
1638 | int drm_mode_create_suggested_offset_properties(struct drm_device *dev) | |
1639 | { | |
1640 | if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property) | |
1641 | return 0; | |
1642 | ||
1643 | dev->mode_config.suggested_x_property = | |
1644 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff); | |
1645 | ||
1646 | dev->mode_config.suggested_y_property = | |
1647 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff); | |
1648 | ||
1649 | if (dev->mode_config.suggested_x_property == NULL || | |
1650 | dev->mode_config.suggested_y_property == NULL) | |
1651 | return -ENOMEM; | |
1652 | return 0; | |
1653 | } | |
1654 | EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties); | |
1655 | ||
ea9cbb06 | 1656 | static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) |
f453ba04 DA |
1657 | { |
1658 | uint32_t total_objects = 0; | |
1659 | ||
1660 | total_objects += dev->mode_config.num_crtc; | |
1661 | total_objects += dev->mode_config.num_connector; | |
1662 | total_objects += dev->mode_config.num_encoder; | |
1663 | ||
bd3f0ff9 | 1664 | group->id_list = kcalloc(total_objects, sizeof(uint32_t), GFP_KERNEL); |
f453ba04 DA |
1665 | if (!group->id_list) |
1666 | return -ENOMEM; | |
1667 | ||
1668 | group->num_crtcs = 0; | |
1669 | group->num_connectors = 0; | |
1670 | group->num_encoders = 0; | |
1671 | return 0; | |
1672 | } | |
1673 | ||
ad222799 DA |
1674 | void drm_mode_group_destroy(struct drm_mode_group *group) |
1675 | { | |
1676 | kfree(group->id_list); | |
1677 | group->id_list = NULL; | |
1678 | } | |
1679 | ||
c8e32cc1 DV |
1680 | /* |
1681 | * NOTE: Driver's shouldn't ever call drm_mode_group_init_legacy_group - it is | |
1682 | * the drm core's responsibility to set up mode control groups. | |
1683 | */ | |
f453ba04 DA |
1684 | int drm_mode_group_init_legacy_group(struct drm_device *dev, |
1685 | struct drm_mode_group *group) | |
1686 | { | |
1687 | struct drm_crtc *crtc; | |
1688 | struct drm_encoder *encoder; | |
1689 | struct drm_connector *connector; | |
1690 | int ret; | |
1691 | ||
0cc0b223 TR |
1692 | ret = drm_mode_group_init(dev, group); |
1693 | if (ret) | |
f453ba04 DA |
1694 | return ret; |
1695 | ||
1696 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
1697 | group->id_list[group->num_crtcs++] = crtc->base.id; | |
1698 | ||
1699 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
1700 | group->id_list[group->num_crtcs + group->num_encoders++] = | |
1701 | encoder->base.id; | |
1702 | ||
1703 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
1704 | group->id_list[group->num_crtcs + group->num_encoders + | |
1705 | group->num_connectors++] = connector->base.id; | |
1706 | ||
1707 | return 0; | |
1708 | } | |
9c1dfc55 | 1709 | EXPORT_SYMBOL(drm_mode_group_init_legacy_group); |
f453ba04 | 1710 | |
2390cd11 DA |
1711 | void drm_reinit_primary_mode_group(struct drm_device *dev) |
1712 | { | |
1713 | drm_modeset_lock_all(dev); | |
1714 | drm_mode_group_destroy(&dev->primary->mode_group); | |
1715 | drm_mode_group_init_legacy_group(dev, &dev->primary->mode_group); | |
1716 | drm_modeset_unlock_all(dev); | |
1717 | } | |
1718 | EXPORT_SYMBOL(drm_reinit_primary_mode_group); | |
1719 | ||
f453ba04 DA |
1720 | /** |
1721 | * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo | |
1722 | * @out: drm_mode_modeinfo struct to return to the user | |
1723 | * @in: drm_display_mode to use | |
1724 | * | |
f453ba04 DA |
1725 | * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to |
1726 | * the user. | |
1727 | */ | |
93bbf6db VS |
1728 | static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, |
1729 | const struct drm_display_mode *in) | |
f453ba04 | 1730 | { |
e36fae38 VS |
1731 | WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX || |
1732 | in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX || | |
1733 | in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX || | |
1734 | in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX || | |
1735 | in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX, | |
1736 | "timing values too large for mode info\n"); | |
1737 | ||
f453ba04 DA |
1738 | out->clock = in->clock; |
1739 | out->hdisplay = in->hdisplay; | |
1740 | out->hsync_start = in->hsync_start; | |
1741 | out->hsync_end = in->hsync_end; | |
1742 | out->htotal = in->htotal; | |
1743 | out->hskew = in->hskew; | |
1744 | out->vdisplay = in->vdisplay; | |
1745 | out->vsync_start = in->vsync_start; | |
1746 | out->vsync_end = in->vsync_end; | |
1747 | out->vtotal = in->vtotal; | |
1748 | out->vscan = in->vscan; | |
1749 | out->vrefresh = in->vrefresh; | |
1750 | out->flags = in->flags; | |
1751 | out->type = in->type; | |
1752 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1753 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
1754 | } | |
1755 | ||
1756 | /** | |
74afee7d | 1757 | * drm_crtc_convert_umode - convert a modeinfo into a drm_display_mode |
f453ba04 DA |
1758 | * @out: drm_display_mode to return to the user |
1759 | * @in: drm_mode_modeinfo to use | |
1760 | * | |
f453ba04 DA |
1761 | * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to |
1762 | * the caller. | |
90367bf6 | 1763 | * |
c8e32cc1 | 1764 | * Returns: |
1a498633 | 1765 | * Zero on success, negative errno on failure. |
f453ba04 | 1766 | */ |
93bbf6db VS |
1767 | static int drm_crtc_convert_umode(struct drm_display_mode *out, |
1768 | const struct drm_mode_modeinfo *in) | |
f453ba04 | 1769 | { |
90367bf6 VS |
1770 | if (in->clock > INT_MAX || in->vrefresh > INT_MAX) |
1771 | return -ERANGE; | |
1772 | ||
5848ad40 DL |
1773 | if ((in->flags & DRM_MODE_FLAG_3D_MASK) > DRM_MODE_FLAG_3D_MAX) |
1774 | return -EINVAL; | |
1775 | ||
f453ba04 DA |
1776 | out->clock = in->clock; |
1777 | out->hdisplay = in->hdisplay; | |
1778 | out->hsync_start = in->hsync_start; | |
1779 | out->hsync_end = in->hsync_end; | |
1780 | out->htotal = in->htotal; | |
1781 | out->hskew = in->hskew; | |
1782 | out->vdisplay = in->vdisplay; | |
1783 | out->vsync_start = in->vsync_start; | |
1784 | out->vsync_end = in->vsync_end; | |
1785 | out->vtotal = in->vtotal; | |
1786 | out->vscan = in->vscan; | |
1787 | out->vrefresh = in->vrefresh; | |
1788 | out->flags = in->flags; | |
1789 | out->type = in->type; | |
1790 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1791 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
90367bf6 VS |
1792 | |
1793 | return 0; | |
f453ba04 DA |
1794 | } |
1795 | ||
1796 | /** | |
1797 | * drm_mode_getresources - get graphics configuration | |
065a50ed DV |
1798 | * @dev: drm device for the ioctl |
1799 | * @data: data pointer for the ioctl | |
1800 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1801 | * |
f453ba04 DA |
1802 | * Construct a set of configuration description structures and return |
1803 | * them to the user, including CRTC, connector and framebuffer configuration. | |
1804 | * | |
1805 | * Called by the user via ioctl. | |
1806 | * | |
c8e32cc1 | 1807 | * Returns: |
1a498633 | 1808 | * Zero on success, negative errno on failure. |
f453ba04 DA |
1809 | */ |
1810 | int drm_mode_getresources(struct drm_device *dev, void *data, | |
1811 | struct drm_file *file_priv) | |
1812 | { | |
1813 | struct drm_mode_card_res *card_res = data; | |
1814 | struct list_head *lh; | |
1815 | struct drm_framebuffer *fb; | |
1816 | struct drm_connector *connector; | |
1817 | struct drm_crtc *crtc; | |
1818 | struct drm_encoder *encoder; | |
1819 | int ret = 0; | |
1820 | int connector_count = 0; | |
1821 | int crtc_count = 0; | |
1822 | int fb_count = 0; | |
1823 | int encoder_count = 0; | |
1824 | int copied = 0, i; | |
1825 | uint32_t __user *fb_id; | |
1826 | uint32_t __user *crtc_id; | |
1827 | uint32_t __user *connector_id; | |
1828 | uint32_t __user *encoder_id; | |
1829 | struct drm_mode_group *mode_group; | |
1830 | ||
fb3b06c8 DA |
1831 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1832 | return -EINVAL; | |
1833 | ||
f453ba04 | 1834 | |
4b096ac1 | 1835 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
1836 | /* |
1837 | * For the non-control nodes we need to limit the list of resources | |
1838 | * by IDs in the group list for this node | |
1839 | */ | |
1840 | list_for_each(lh, &file_priv->fbs) | |
1841 | fb_count++; | |
1842 | ||
4b096ac1 DV |
1843 | /* handle this in 4 parts */ |
1844 | /* FBs */ | |
1845 | if (card_res->count_fbs >= fb_count) { | |
1846 | copied = 0; | |
1847 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; | |
1848 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { | |
1849 | if (put_user(fb->base.id, fb_id + copied)) { | |
1850 | mutex_unlock(&file_priv->fbs_lock); | |
1851 | return -EFAULT; | |
1852 | } | |
1853 | copied++; | |
1854 | } | |
1855 | } | |
1856 | card_res->count_fbs = fb_count; | |
1857 | mutex_unlock(&file_priv->fbs_lock); | |
1858 | ||
fcf93f69 DV |
1859 | /* mode_config.mutex protects the connector list against e.g. DP MST |
1860 | * connector hot-adding. CRTC/Plane lists are invariant. */ | |
1861 | mutex_lock(&dev->mode_config.mutex); | |
43683057 | 1862 | if (!drm_is_primary_client(file_priv)) { |
f453ba04 | 1863 | |
09f308f7 | 1864 | mode_group = NULL; |
f453ba04 DA |
1865 | list_for_each(lh, &dev->mode_config.crtc_list) |
1866 | crtc_count++; | |
1867 | ||
1868 | list_for_each(lh, &dev->mode_config.connector_list) | |
1869 | connector_count++; | |
1870 | ||
1871 | list_for_each(lh, &dev->mode_config.encoder_list) | |
1872 | encoder_count++; | |
1873 | } else { | |
1874 | ||
09f308f7 | 1875 | mode_group = &file_priv->master->minor->mode_group; |
f453ba04 DA |
1876 | crtc_count = mode_group->num_crtcs; |
1877 | connector_count = mode_group->num_connectors; | |
1878 | encoder_count = mode_group->num_encoders; | |
1879 | } | |
1880 | ||
1881 | card_res->max_height = dev->mode_config.max_height; | |
1882 | card_res->min_height = dev->mode_config.min_height; | |
1883 | card_res->max_width = dev->mode_config.max_width; | |
1884 | card_res->min_width = dev->mode_config.min_width; | |
1885 | ||
f453ba04 DA |
1886 | /* CRTCs */ |
1887 | if (card_res->count_crtcs >= crtc_count) { | |
1888 | copied = 0; | |
1889 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; | |
09f308f7 | 1890 | if (!mode_group) { |
f453ba04 DA |
1891 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, |
1892 | head) { | |
9440106b | 1893 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
1894 | if (put_user(crtc->base.id, crtc_id + copied)) { |
1895 | ret = -EFAULT; | |
1896 | goto out; | |
1897 | } | |
1898 | copied++; | |
1899 | } | |
1900 | } else { | |
1901 | for (i = 0; i < mode_group->num_crtcs; i++) { | |
1902 | if (put_user(mode_group->id_list[i], | |
1903 | crtc_id + copied)) { | |
1904 | ret = -EFAULT; | |
1905 | goto out; | |
1906 | } | |
1907 | copied++; | |
1908 | } | |
1909 | } | |
1910 | } | |
1911 | card_res->count_crtcs = crtc_count; | |
1912 | ||
1913 | /* Encoders */ | |
1914 | if (card_res->count_encoders >= encoder_count) { | |
1915 | copied = 0; | |
1916 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; | |
09f308f7 | 1917 | if (!mode_group) { |
f453ba04 DA |
1918 | list_for_each_entry(encoder, |
1919 | &dev->mode_config.encoder_list, | |
1920 | head) { | |
9440106b | 1921 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, |
83a8cfd3 | 1922 | encoder->name); |
f453ba04 DA |
1923 | if (put_user(encoder->base.id, encoder_id + |
1924 | copied)) { | |
1925 | ret = -EFAULT; | |
1926 | goto out; | |
1927 | } | |
1928 | copied++; | |
1929 | } | |
1930 | } else { | |
1931 | for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { | |
1932 | if (put_user(mode_group->id_list[i], | |
1933 | encoder_id + copied)) { | |
1934 | ret = -EFAULT; | |
1935 | goto out; | |
1936 | } | |
1937 | copied++; | |
1938 | } | |
1939 | ||
1940 | } | |
1941 | } | |
1942 | card_res->count_encoders = encoder_count; | |
1943 | ||
1944 | /* Connectors */ | |
1945 | if (card_res->count_connectors >= connector_count) { | |
1946 | copied = 0; | |
1947 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; | |
09f308f7 | 1948 | if (!mode_group) { |
f453ba04 DA |
1949 | list_for_each_entry(connector, |
1950 | &dev->mode_config.connector_list, | |
1951 | head) { | |
9440106b JG |
1952 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
1953 | connector->base.id, | |
25933820 | 1954 | connector->name); |
f453ba04 DA |
1955 | if (put_user(connector->base.id, |
1956 | connector_id + copied)) { | |
1957 | ret = -EFAULT; | |
1958 | goto out; | |
1959 | } | |
1960 | copied++; | |
1961 | } | |
1962 | } else { | |
1963 | int start = mode_group->num_crtcs + | |
1964 | mode_group->num_encoders; | |
1965 | for (i = start; i < start + mode_group->num_connectors; i++) { | |
1966 | if (put_user(mode_group->id_list[i], | |
1967 | connector_id + copied)) { | |
1968 | ret = -EFAULT; | |
1969 | goto out; | |
1970 | } | |
1971 | copied++; | |
1972 | } | |
1973 | } | |
1974 | } | |
1975 | card_res->count_connectors = connector_count; | |
1976 | ||
9440106b | 1977 | DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, |
f453ba04 DA |
1978 | card_res->count_connectors, card_res->count_encoders); |
1979 | ||
1980 | out: | |
fcf93f69 | 1981 | mutex_unlock(&dev->mode_config.mutex); |
f453ba04 DA |
1982 | return ret; |
1983 | } | |
1984 | ||
1985 | /** | |
1986 | * drm_mode_getcrtc - get CRTC configuration | |
065a50ed DV |
1987 | * @dev: drm device for the ioctl |
1988 | * @data: data pointer for the ioctl | |
1989 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1990 | * |
f453ba04 DA |
1991 | * Construct a CRTC configuration structure to return to the user. |
1992 | * | |
1993 | * Called by the user via ioctl. | |
1994 | * | |
c8e32cc1 | 1995 | * Returns: |
1a498633 | 1996 | * Zero on success, negative errno on failure. |
f453ba04 DA |
1997 | */ |
1998 | int drm_mode_getcrtc(struct drm_device *dev, | |
1999 | void *data, struct drm_file *file_priv) | |
2000 | { | |
2001 | struct drm_mode_crtc *crtc_resp = data; | |
2002 | struct drm_crtc *crtc; | |
f453ba04 | 2003 | |
fb3b06c8 DA |
2004 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2005 | return -EINVAL; | |
2006 | ||
a2b34e22 | 2007 | crtc = drm_crtc_find(dev, crtc_resp->crtc_id); |
fcf93f69 DV |
2008 | if (!crtc) |
2009 | return -ENOENT; | |
f453ba04 | 2010 | |
fcf93f69 | 2011 | drm_modeset_lock_crtc(crtc, crtc->primary); |
f453ba04 DA |
2012 | crtc_resp->x = crtc->x; |
2013 | crtc_resp->y = crtc->y; | |
2014 | crtc_resp->gamma_size = crtc->gamma_size; | |
f4510a27 MR |
2015 | if (crtc->primary->fb) |
2016 | crtc_resp->fb_id = crtc->primary->fb->base.id; | |
f453ba04 DA |
2017 | else |
2018 | crtc_resp->fb_id = 0; | |
2019 | ||
2020 | if (crtc->enabled) { | |
2021 | ||
2022 | drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); | |
2023 | crtc_resp->mode_valid = 1; | |
2024 | ||
2025 | } else { | |
2026 | crtc_resp->mode_valid = 0; | |
2027 | } | |
fcf93f69 | 2028 | drm_modeset_unlock_crtc(crtc); |
f453ba04 | 2029 | |
baf698b0 | 2030 | return 0; |
f453ba04 DA |
2031 | } |
2032 | ||
61d8e328 DL |
2033 | static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, |
2034 | const struct drm_file *file_priv) | |
2035 | { | |
2036 | /* | |
2037 | * If user-space hasn't configured the driver to expose the stereo 3D | |
2038 | * modes, don't expose them. | |
2039 | */ | |
2040 | if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) | |
2041 | return false; | |
2042 | ||
2043 | return true; | |
2044 | } | |
2045 | ||
abd69c55 DV |
2046 | static struct drm_encoder *drm_connector_get_encoder(struct drm_connector *connector) |
2047 | { | |
2048 | /* For atomic drivers only state objects are synchronously updated and | |
2049 | * protected by modeset locks, so check those first. */ | |
2050 | if (connector->state) | |
2051 | return connector->state->best_encoder; | |
2052 | return connector->encoder; | |
2053 | } | |
2054 | ||
95cbf110 | 2055 | /* helper for getconnector and getproperties ioctls */ |
88a48e29 | 2056 | static int get_properties(struct drm_mode_object *obj, bool atomic, |
95cbf110 RC |
2057 | uint32_t __user *prop_ptr, uint64_t __user *prop_values, |
2058 | uint32_t *arg_count_props) | |
2059 | { | |
88a48e29 RC |
2060 | int props_count; |
2061 | int i, ret, copied; | |
2062 | ||
2063 | props_count = obj->properties->count; | |
2064 | if (!atomic) | |
2065 | props_count -= obj->properties->atomic_count; | |
95cbf110 RC |
2066 | |
2067 | if ((*arg_count_props >= props_count) && props_count) { | |
88a48e29 | 2068 | for (i = 0, copied = 0; copied < props_count; i++) { |
95cbf110 RC |
2069 | struct drm_property *prop = obj->properties->properties[i]; |
2070 | uint64_t val; | |
2071 | ||
88a48e29 RC |
2072 | if ((prop->flags & DRM_MODE_PROP_ATOMIC) && !atomic) |
2073 | continue; | |
2074 | ||
95cbf110 RC |
2075 | ret = drm_object_property_get_value(obj, prop, &val); |
2076 | if (ret) | |
2077 | return ret; | |
2078 | ||
2079 | if (put_user(prop->base.id, prop_ptr + copied)) | |
2080 | return -EFAULT; | |
2081 | ||
2082 | if (put_user(val, prop_values + copied)) | |
2083 | return -EFAULT; | |
2084 | ||
2085 | copied++; | |
2086 | } | |
2087 | } | |
2088 | *arg_count_props = props_count; | |
2089 | ||
2090 | return 0; | |
2091 | } | |
2092 | ||
f453ba04 DA |
2093 | /** |
2094 | * drm_mode_getconnector - get connector configuration | |
065a50ed DV |
2095 | * @dev: drm device for the ioctl |
2096 | * @data: data pointer for the ioctl | |
2097 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2098 | * |
f453ba04 DA |
2099 | * Construct a connector configuration structure to return to the user. |
2100 | * | |
2101 | * Called by the user via ioctl. | |
2102 | * | |
c8e32cc1 | 2103 | * Returns: |
1a498633 | 2104 | * Zero on success, negative errno on failure. |
f453ba04 DA |
2105 | */ |
2106 | int drm_mode_getconnector(struct drm_device *dev, void *data, | |
2107 | struct drm_file *file_priv) | |
2108 | { | |
2109 | struct drm_mode_get_connector *out_resp = data; | |
f453ba04 | 2110 | struct drm_connector *connector; |
abd69c55 | 2111 | struct drm_encoder *encoder; |
f453ba04 DA |
2112 | struct drm_display_mode *mode; |
2113 | int mode_count = 0; | |
f453ba04 DA |
2114 | int encoders_count = 0; |
2115 | int ret = 0; | |
2116 | int copied = 0; | |
2117 | int i; | |
2118 | struct drm_mode_modeinfo u_mode; | |
2119 | struct drm_mode_modeinfo __user *mode_ptr; | |
f453ba04 DA |
2120 | uint32_t __user *encoder_ptr; |
2121 | ||
fb3b06c8 DA |
2122 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2123 | return -EINVAL; | |
2124 | ||
f453ba04 DA |
2125 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
2126 | ||
9440106b | 2127 | DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); |
f453ba04 | 2128 | |
7b24056b | 2129 | mutex_lock(&dev->mode_config.mutex); |
ccfc0865 | 2130 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
f453ba04 | 2131 | |
a2b34e22 RC |
2132 | connector = drm_connector_find(dev, out_resp->connector_id); |
2133 | if (!connector) { | |
f27657f2 | 2134 | ret = -ENOENT; |
f453ba04 DA |
2135 | goto out; |
2136 | } | |
f453ba04 | 2137 | |
01073b08 TR |
2138 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) |
2139 | if (connector->encoder_ids[i] != 0) | |
f453ba04 | 2140 | encoders_count++; |
f453ba04 DA |
2141 | |
2142 | if (out_resp->count_modes == 0) { | |
2143 | connector->funcs->fill_modes(connector, | |
2144 | dev->mode_config.max_width, | |
2145 | dev->mode_config.max_height); | |
2146 | } | |
2147 | ||
2148 | /* delayed so we get modes regardless of pre-fill_modes state */ | |
2149 | list_for_each_entry(mode, &connector->modes, head) | |
61d8e328 DL |
2150 | if (drm_mode_expose_to_userspace(mode, file_priv)) |
2151 | mode_count++; | |
f453ba04 DA |
2152 | |
2153 | out_resp->connector_id = connector->base.id; | |
2154 | out_resp->connector_type = connector->connector_type; | |
2155 | out_resp->connector_type_id = connector->connector_type_id; | |
2156 | out_resp->mm_width = connector->display_info.width_mm; | |
2157 | out_resp->mm_height = connector->display_info.height_mm; | |
2158 | out_resp->subpixel = connector->display_info.subpixel_order; | |
2159 | out_resp->connection = connector->status; | |
abd69c55 DV |
2160 | encoder = drm_connector_get_encoder(connector); |
2161 | if (encoder) | |
2162 | out_resp->encoder_id = encoder->base.id; | |
f453ba04 DA |
2163 | else |
2164 | out_resp->encoder_id = 0; | |
2165 | ||
2166 | /* | |
2167 | * This ioctl is called twice, once to determine how much space is | |
2168 | * needed, and the 2nd time to fill it. | |
2169 | */ | |
2170 | if ((out_resp->count_modes >= mode_count) && mode_count) { | |
2171 | copied = 0; | |
81f6c7f8 | 2172 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; |
f453ba04 | 2173 | list_for_each_entry(mode, &connector->modes, head) { |
61d8e328 DL |
2174 | if (!drm_mode_expose_to_userspace(mode, file_priv)) |
2175 | continue; | |
2176 | ||
f453ba04 DA |
2177 | drm_crtc_convert_to_umode(&u_mode, mode); |
2178 | if (copy_to_user(mode_ptr + copied, | |
2179 | &u_mode, sizeof(u_mode))) { | |
2180 | ret = -EFAULT; | |
2181 | goto out; | |
2182 | } | |
2183 | copied++; | |
2184 | } | |
2185 | } | |
2186 | out_resp->count_modes = mode_count; | |
2187 | ||
88a48e29 | 2188 | ret = get_properties(&connector->base, file_priv->atomic, |
95cbf110 RC |
2189 | (uint32_t __user *)(unsigned long)(out_resp->props_ptr), |
2190 | (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr), | |
2191 | &out_resp->count_props); | |
2192 | if (ret) | |
2193 | goto out; | |
f453ba04 DA |
2194 | |
2195 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { | |
2196 | copied = 0; | |
81f6c7f8 | 2197 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); |
f453ba04 DA |
2198 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
2199 | if (connector->encoder_ids[i] != 0) { | |
2200 | if (put_user(connector->encoder_ids[i], | |
2201 | encoder_ptr + copied)) { | |
2202 | ret = -EFAULT; | |
2203 | goto out; | |
2204 | } | |
2205 | copied++; | |
2206 | } | |
2207 | } | |
2208 | } | |
2209 | out_resp->count_encoders = encoders_count; | |
2210 | ||
2211 | out: | |
ccfc0865 | 2212 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
7b24056b DV |
2213 | mutex_unlock(&dev->mode_config.mutex); |
2214 | ||
f453ba04 DA |
2215 | return ret; |
2216 | } | |
2217 | ||
abd69c55 DV |
2218 | static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder) |
2219 | { | |
2220 | struct drm_connector *connector; | |
2221 | struct drm_device *dev = encoder->dev; | |
2222 | bool uses_atomic = false; | |
2223 | ||
2224 | /* For atomic drivers only state objects are synchronously updated and | |
2225 | * protected by modeset locks, so check those first. */ | |
2226 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
2227 | if (!connector->state) | |
2228 | continue; | |
2229 | ||
2230 | uses_atomic = true; | |
2231 | ||
2232 | if (connector->state->best_encoder != encoder) | |
2233 | continue; | |
2234 | ||
2235 | return connector->state->crtc; | |
2236 | } | |
2237 | ||
2238 | /* Don't return stale data (e.g. pending async disable). */ | |
2239 | if (uses_atomic) | |
2240 | return NULL; | |
2241 | ||
2242 | return encoder->crtc; | |
2243 | } | |
2244 | ||
c8e32cc1 DV |
2245 | /** |
2246 | * drm_mode_getencoder - get encoder configuration | |
2247 | * @dev: drm device for the ioctl | |
2248 | * @data: data pointer for the ioctl | |
2249 | * @file_priv: drm file for the ioctl call | |
2250 | * | |
2251 | * Construct a encoder configuration structure to return to the user. | |
2252 | * | |
2253 | * Called by the user via ioctl. | |
2254 | * | |
2255 | * Returns: | |
1a498633 | 2256 | * Zero on success, negative errno on failure. |
c8e32cc1 | 2257 | */ |
f453ba04 DA |
2258 | int drm_mode_getencoder(struct drm_device *dev, void *data, |
2259 | struct drm_file *file_priv) | |
2260 | { | |
2261 | struct drm_mode_get_encoder *enc_resp = data; | |
f453ba04 | 2262 | struct drm_encoder *encoder; |
abd69c55 | 2263 | struct drm_crtc *crtc; |
f453ba04 | 2264 | |
fb3b06c8 DA |
2265 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2266 | return -EINVAL; | |
2267 | ||
a2b34e22 | 2268 | encoder = drm_encoder_find(dev, enc_resp->encoder_id); |
fcf93f69 DV |
2269 | if (!encoder) |
2270 | return -ENOENT; | |
f453ba04 | 2271 | |
fcf93f69 | 2272 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
abd69c55 DV |
2273 | crtc = drm_encoder_get_crtc(encoder); |
2274 | if (crtc) | |
2275 | enc_resp->crtc_id = crtc->base.id; | |
2276 | else if (encoder->crtc) | |
f453ba04 DA |
2277 | enc_resp->crtc_id = encoder->crtc->base.id; |
2278 | else | |
2279 | enc_resp->crtc_id = 0; | |
fcf93f69 DV |
2280 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
2281 | ||
f453ba04 DA |
2282 | enc_resp->encoder_type = encoder->encoder_type; |
2283 | enc_resp->encoder_id = encoder->base.id; | |
2284 | enc_resp->possible_crtcs = encoder->possible_crtcs; | |
2285 | enc_resp->possible_clones = encoder->possible_clones; | |
2286 | ||
baf698b0 | 2287 | return 0; |
f453ba04 DA |
2288 | } |
2289 | ||
8cf5c917 | 2290 | /** |
c8e32cc1 | 2291 | * drm_mode_getplane_res - enumerate all plane resources |
8cf5c917 JB |
2292 | * @dev: DRM device |
2293 | * @data: ioctl data | |
2294 | * @file_priv: DRM file info | |
2295 | * | |
c8e32cc1 DV |
2296 | * Construct a list of plane ids to return to the user. |
2297 | * | |
2298 | * Called by the user via ioctl. | |
2299 | * | |
2300 | * Returns: | |
1a498633 | 2301 | * Zero on success, negative errno on failure. |
8cf5c917 JB |
2302 | */ |
2303 | int drm_mode_getplane_res(struct drm_device *dev, void *data, | |
c8e32cc1 | 2304 | struct drm_file *file_priv) |
8cf5c917 JB |
2305 | { |
2306 | struct drm_mode_get_plane_res *plane_resp = data; | |
2307 | struct drm_mode_config *config; | |
2308 | struct drm_plane *plane; | |
2309 | uint32_t __user *plane_ptr; | |
fcf93f69 | 2310 | int copied = 0; |
681e7ec7 | 2311 | unsigned num_planes; |
8cf5c917 JB |
2312 | |
2313 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2314 | return -EINVAL; | |
2315 | ||
8cf5c917 JB |
2316 | config = &dev->mode_config; |
2317 | ||
681e7ec7 MR |
2318 | if (file_priv->universal_planes) |
2319 | num_planes = config->num_total_plane; | |
2320 | else | |
2321 | num_planes = config->num_overlay_plane; | |
2322 | ||
8cf5c917 JB |
2323 | /* |
2324 | * This ioctl is called twice, once to determine how much space is | |
2325 | * needed, and the 2nd time to fill it. | |
2326 | */ | |
681e7ec7 MR |
2327 | if (num_planes && |
2328 | (plane_resp->count_planes >= num_planes)) { | |
81f6c7f8 | 2329 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
8cf5c917 | 2330 | |
fcf93f69 | 2331 | /* Plane lists are invariant, no locking needed. */ |
8cf5c917 | 2332 | list_for_each_entry(plane, &config->plane_list, head) { |
681e7ec7 MR |
2333 | /* |
2334 | * Unless userspace set the 'universal planes' | |
2335 | * capability bit, only advertise overlays. | |
2336 | */ | |
2337 | if (plane->type != DRM_PLANE_TYPE_OVERLAY && | |
2338 | !file_priv->universal_planes) | |
e27dde3e MR |
2339 | continue; |
2340 | ||
fcf93f69 DV |
2341 | if (put_user(plane->base.id, plane_ptr + copied)) |
2342 | return -EFAULT; | |
8cf5c917 JB |
2343 | copied++; |
2344 | } | |
2345 | } | |
681e7ec7 | 2346 | plane_resp->count_planes = num_planes; |
8cf5c917 | 2347 | |
fcf93f69 | 2348 | return 0; |
8cf5c917 JB |
2349 | } |
2350 | ||
2351 | /** | |
c8e32cc1 | 2352 | * drm_mode_getplane - get plane configuration |
8cf5c917 JB |
2353 | * @dev: DRM device |
2354 | * @data: ioctl data | |
2355 | * @file_priv: DRM file info | |
2356 | * | |
c8e32cc1 DV |
2357 | * Construct a plane configuration structure to return to the user. |
2358 | * | |
2359 | * Called by the user via ioctl. | |
2360 | * | |
2361 | * Returns: | |
1a498633 | 2362 | * Zero on success, negative errno on failure. |
8cf5c917 JB |
2363 | */ |
2364 | int drm_mode_getplane(struct drm_device *dev, void *data, | |
c8e32cc1 | 2365 | struct drm_file *file_priv) |
8cf5c917 JB |
2366 | { |
2367 | struct drm_mode_get_plane *plane_resp = data; | |
8cf5c917 JB |
2368 | struct drm_plane *plane; |
2369 | uint32_t __user *format_ptr; | |
8cf5c917 JB |
2370 | |
2371 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2372 | return -EINVAL; | |
2373 | ||
a2b34e22 | 2374 | plane = drm_plane_find(dev, plane_resp->plane_id); |
fcf93f69 DV |
2375 | if (!plane) |
2376 | return -ENOENT; | |
8cf5c917 | 2377 | |
fcf93f69 | 2378 | drm_modeset_lock(&plane->mutex, NULL); |
8cf5c917 JB |
2379 | if (plane->crtc) |
2380 | plane_resp->crtc_id = plane->crtc->base.id; | |
2381 | else | |
2382 | plane_resp->crtc_id = 0; | |
2383 | ||
2384 | if (plane->fb) | |
2385 | plane_resp->fb_id = plane->fb->base.id; | |
2386 | else | |
2387 | plane_resp->fb_id = 0; | |
fcf93f69 | 2388 | drm_modeset_unlock(&plane->mutex); |
8cf5c917 JB |
2389 | |
2390 | plane_resp->plane_id = plane->base.id; | |
2391 | plane_resp->possible_crtcs = plane->possible_crtcs; | |
778ad903 | 2392 | plane_resp->gamma_size = 0; |
8cf5c917 JB |
2393 | |
2394 | /* | |
2395 | * This ioctl is called twice, once to determine how much space is | |
2396 | * needed, and the 2nd time to fill it. | |
2397 | */ | |
2398 | if (plane->format_count && | |
2399 | (plane_resp->count_format_types >= plane->format_count)) { | |
81f6c7f8 | 2400 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
8cf5c917 JB |
2401 | if (copy_to_user(format_ptr, |
2402 | plane->format_types, | |
2403 | sizeof(uint32_t) * plane->format_count)) { | |
fcf93f69 | 2404 | return -EFAULT; |
8cf5c917 JB |
2405 | } |
2406 | } | |
2407 | plane_resp->count_format_types = plane->format_count; | |
2408 | ||
baf698b0 | 2409 | return 0; |
8cf5c917 JB |
2410 | } |
2411 | ||
b36552b3 MR |
2412 | /* |
2413 | * setplane_internal - setplane handler for internal callers | |
8cf5c917 | 2414 | * |
b36552b3 MR |
2415 | * Note that we assume an extra reference has already been taken on fb. If the |
2416 | * update fails, this reference will be dropped before return; if it succeeds, | |
2417 | * the previous framebuffer (if any) will be unreferenced instead. | |
c8e32cc1 | 2418 | * |
b36552b3 | 2419 | * src_{x,y,w,h} are provided in 16.16 fixed point format |
8cf5c917 | 2420 | */ |
f2b50c11 DV |
2421 | static int __setplane_internal(struct drm_plane *plane, |
2422 | struct drm_crtc *crtc, | |
2423 | struct drm_framebuffer *fb, | |
2424 | int32_t crtc_x, int32_t crtc_y, | |
2425 | uint32_t crtc_w, uint32_t crtc_h, | |
2426 | /* src_{x,y,w,h} values are 16.16 fixed point */ | |
2427 | uint32_t src_x, uint32_t src_y, | |
2428 | uint32_t src_w, uint32_t src_h) | |
8cf5c917 | 2429 | { |
8cf5c917 | 2430 | int ret = 0; |
42ef8789 | 2431 | unsigned int fb_width, fb_height; |
2f763312 | 2432 | unsigned int i; |
8cf5c917 | 2433 | |
8cf5c917 | 2434 | /* No fb means shut it down */ |
b36552b3 | 2435 | if (!fb) { |
3d30a59b | 2436 | plane->old_fb = plane->fb; |
731cce48 DV |
2437 | ret = plane->funcs->disable_plane(plane); |
2438 | if (!ret) { | |
2439 | plane->crtc = NULL; | |
2440 | plane->fb = NULL; | |
2441 | } else { | |
3d30a59b | 2442 | plane->old_fb = NULL; |
731cce48 | 2443 | } |
8cf5c917 JB |
2444 | goto out; |
2445 | } | |
2446 | ||
7f994f3f MR |
2447 | /* Check whether this plane is usable on this CRTC */ |
2448 | if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { | |
2449 | DRM_DEBUG_KMS("Invalid crtc for plane\n"); | |
2450 | ret = -EINVAL; | |
2451 | goto out; | |
2452 | } | |
2453 | ||
62443be6 VS |
2454 | /* Check whether this plane supports the fb pixel format. */ |
2455 | for (i = 0; i < plane->format_count; i++) | |
2456 | if (fb->pixel_format == plane->format_types[i]) | |
2457 | break; | |
2458 | if (i == plane->format_count) { | |
6ba6d03e VS |
2459 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
2460 | drm_get_format_name(fb->pixel_format)); | |
62443be6 VS |
2461 | ret = -EINVAL; |
2462 | goto out; | |
2463 | } | |
2464 | ||
42ef8789 VS |
2465 | fb_width = fb->width << 16; |
2466 | fb_height = fb->height << 16; | |
2467 | ||
2468 | /* Make sure source coordinates are inside the fb. */ | |
b36552b3 MR |
2469 | if (src_w > fb_width || |
2470 | src_x > fb_width - src_w || | |
2471 | src_h > fb_height || | |
2472 | src_y > fb_height - src_h) { | |
42ef8789 VS |
2473 | DRM_DEBUG_KMS("Invalid source coordinates " |
2474 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", | |
b36552b3 MR |
2475 | src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, |
2476 | src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, | |
2477 | src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, | |
2478 | src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); | |
42ef8789 VS |
2479 | ret = -ENOSPC; |
2480 | goto out; | |
2481 | } | |
2482 | ||
3d30a59b | 2483 | plane->old_fb = plane->fb; |
8cf5c917 | 2484 | ret = plane->funcs->update_plane(plane, crtc, fb, |
b36552b3 MR |
2485 | crtc_x, crtc_y, crtc_w, crtc_h, |
2486 | src_x, src_y, src_w, src_h); | |
8cf5c917 JB |
2487 | if (!ret) { |
2488 | plane->crtc = crtc; | |
2489 | plane->fb = fb; | |
35f8badc | 2490 | fb = NULL; |
0fe27f06 | 2491 | } else { |
3d30a59b | 2492 | plane->old_fb = NULL; |
8cf5c917 JB |
2493 | } |
2494 | ||
2495 | out: | |
6c2a7532 DV |
2496 | if (fb) |
2497 | drm_framebuffer_unreference(fb); | |
3d30a59b DV |
2498 | if (plane->old_fb) |
2499 | drm_framebuffer_unreference(plane->old_fb); | |
2500 | plane->old_fb = NULL; | |
8cf5c917 JB |
2501 | |
2502 | return ret; | |
f2b50c11 | 2503 | } |
b36552b3 | 2504 | |
f2b50c11 DV |
2505 | static int setplane_internal(struct drm_plane *plane, |
2506 | struct drm_crtc *crtc, | |
2507 | struct drm_framebuffer *fb, | |
2508 | int32_t crtc_x, int32_t crtc_y, | |
2509 | uint32_t crtc_w, uint32_t crtc_h, | |
2510 | /* src_{x,y,w,h} values are 16.16 fixed point */ | |
2511 | uint32_t src_x, uint32_t src_y, | |
2512 | uint32_t src_w, uint32_t src_h) | |
2513 | { | |
2514 | int ret; | |
2515 | ||
2516 | drm_modeset_lock_all(plane->dev); | |
2517 | ret = __setplane_internal(plane, crtc, fb, | |
2518 | crtc_x, crtc_y, crtc_w, crtc_h, | |
2519 | src_x, src_y, src_w, src_h); | |
2520 | drm_modeset_unlock_all(plane->dev); | |
2521 | ||
2522 | return ret; | |
b36552b3 MR |
2523 | } |
2524 | ||
2525 | /** | |
2526 | * drm_mode_setplane - configure a plane's configuration | |
2527 | * @dev: DRM device | |
2528 | * @data: ioctl data* | |
2529 | * @file_priv: DRM file info | |
2530 | * | |
2531 | * Set plane configuration, including placement, fb, scaling, and other factors. | |
2532 | * Or pass a NULL fb to disable (planes may be disabled without providing a | |
2533 | * valid crtc). | |
2534 | * | |
2535 | * Returns: | |
1a498633 | 2536 | * Zero on success, negative errno on failure. |
b36552b3 MR |
2537 | */ |
2538 | int drm_mode_setplane(struct drm_device *dev, void *data, | |
2539 | struct drm_file *file_priv) | |
2540 | { | |
2541 | struct drm_mode_set_plane *plane_req = data; | |
b36552b3 MR |
2542 | struct drm_plane *plane; |
2543 | struct drm_crtc *crtc = NULL; | |
2544 | struct drm_framebuffer *fb = NULL; | |
2545 | ||
2546 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2547 | return -EINVAL; | |
2548 | ||
2549 | /* Give drivers some help against integer overflows */ | |
2550 | if (plane_req->crtc_w > INT_MAX || | |
2551 | plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w || | |
2552 | plane_req->crtc_h > INT_MAX || | |
2553 | plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) { | |
2554 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", | |
2555 | plane_req->crtc_w, plane_req->crtc_h, | |
2556 | plane_req->crtc_x, plane_req->crtc_y); | |
2557 | return -ERANGE; | |
2558 | } | |
2559 | ||
2560 | /* | |
2561 | * First, find the plane, crtc, and fb objects. If not available, | |
2562 | * we don't bother to call the driver. | |
2563 | */ | |
933f622f RC |
2564 | plane = drm_plane_find(dev, plane_req->plane_id); |
2565 | if (!plane) { | |
b36552b3 MR |
2566 | DRM_DEBUG_KMS("Unknown plane ID %d\n", |
2567 | plane_req->plane_id); | |
2568 | return -ENOENT; | |
2569 | } | |
b36552b3 MR |
2570 | |
2571 | if (plane_req->fb_id) { | |
2572 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); | |
2573 | if (!fb) { | |
2574 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", | |
2575 | plane_req->fb_id); | |
2576 | return -ENOENT; | |
2577 | } | |
2578 | ||
933f622f RC |
2579 | crtc = drm_crtc_find(dev, plane_req->crtc_id); |
2580 | if (!crtc) { | |
b36552b3 MR |
2581 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", |
2582 | plane_req->crtc_id); | |
2583 | return -ENOENT; | |
2584 | } | |
b36552b3 MR |
2585 | } |
2586 | ||
161d0dc1 MR |
2587 | /* |
2588 | * setplane_internal will take care of deref'ing either the old or new | |
2589 | * framebuffer depending on success. | |
2590 | */ | |
17cfd91f | 2591 | return setplane_internal(plane, crtc, fb, |
b36552b3 MR |
2592 | plane_req->crtc_x, plane_req->crtc_y, |
2593 | plane_req->crtc_w, plane_req->crtc_h, | |
2594 | plane_req->src_x, plane_req->src_y, | |
2595 | plane_req->src_w, plane_req->src_h); | |
8cf5c917 JB |
2596 | } |
2597 | ||
2d13b679 DV |
2598 | /** |
2599 | * drm_mode_set_config_internal - helper to call ->set_config | |
2600 | * @set: modeset config to set | |
2601 | * | |
2602 | * This is a little helper to wrap internal calls to the ->set_config driver | |
2603 | * interface. The only thing it adds is correct refcounting dance. | |
4dfd909f | 2604 | * |
c8e32cc1 | 2605 | * Returns: |
1a498633 | 2606 | * Zero on success, negative errno on failure. |
2d13b679 DV |
2607 | */ |
2608 | int drm_mode_set_config_internal(struct drm_mode_set *set) | |
2609 | { | |
2610 | struct drm_crtc *crtc = set->crtc; | |
5cef29aa DV |
2611 | struct drm_framebuffer *fb; |
2612 | struct drm_crtc *tmp; | |
b0d12325 DV |
2613 | int ret; |
2614 | ||
5cef29aa DV |
2615 | /* |
2616 | * NOTE: ->set_config can also disable other crtcs (if we steal all | |
2617 | * connectors from it), hence we need to refcount the fbs across all | |
2618 | * crtcs. Atomic modeset will have saner semantics ... | |
2619 | */ | |
2620 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) | |
3d30a59b | 2621 | tmp->primary->old_fb = tmp->primary->fb; |
5cef29aa | 2622 | |
b0d12325 | 2623 | fb = set->fb; |
2d13b679 | 2624 | |
b0d12325 DV |
2625 | ret = crtc->funcs->set_config(set); |
2626 | if (ret == 0) { | |
e13161af | 2627 | crtc->primary->crtc = crtc; |
0fe27f06 | 2628 | crtc->primary->fb = fb; |
5cef29aa | 2629 | } |
cc85e121 | 2630 | |
5cef29aa | 2631 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { |
f4510a27 MR |
2632 | if (tmp->primary->fb) |
2633 | drm_framebuffer_reference(tmp->primary->fb); | |
3d30a59b DV |
2634 | if (tmp->primary->old_fb) |
2635 | drm_framebuffer_unreference(tmp->primary->old_fb); | |
2636 | tmp->primary->old_fb = NULL; | |
b0d12325 DV |
2637 | } |
2638 | ||
2639 | return ret; | |
2d13b679 DV |
2640 | } |
2641 | EXPORT_SYMBOL(drm_mode_set_config_internal); | |
2642 | ||
ecb7e16b GP |
2643 | /** |
2644 | * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode | |
2645 | * @mode: mode to query | |
2646 | * @hdisplay: hdisplay value to fill in | |
2647 | * @vdisplay: vdisplay value to fill in | |
2648 | * | |
2649 | * The vdisplay value will be doubled if the specified mode is a stereo mode of | |
2650 | * the appropriate layout. | |
2651 | */ | |
2652 | void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, | |
2653 | int *hdisplay, int *vdisplay) | |
2654 | { | |
2655 | struct drm_display_mode adjusted; | |
2656 | ||
2657 | drm_mode_copy(&adjusted, mode); | |
2658 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); | |
2659 | *hdisplay = adjusted.crtc_hdisplay; | |
2660 | *vdisplay = adjusted.crtc_vdisplay; | |
2661 | } | |
2662 | EXPORT_SYMBOL(drm_crtc_get_hv_timing); | |
2663 | ||
af93629d MR |
2664 | /** |
2665 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the | |
2666 | * CRTC viewport | |
2667 | * @crtc: CRTC that framebuffer will be displayed on | |
2668 | * @x: x panning | |
2669 | * @y: y panning | |
2670 | * @mode: mode that framebuffer will be displayed under | |
2671 | * @fb: framebuffer to check size of | |
c11e9283 | 2672 | */ |
af93629d MR |
2673 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
2674 | int x, int y, | |
2675 | const struct drm_display_mode *mode, | |
2676 | const struct drm_framebuffer *fb) | |
c11e9283 DL |
2677 | |
2678 | { | |
2679 | int hdisplay, vdisplay; | |
2680 | ||
ecb7e16b | 2681 | drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); |
a0c1bbb0 | 2682 | |
c11e9283 DL |
2683 | if (crtc->invert_dimensions) |
2684 | swap(hdisplay, vdisplay); | |
2685 | ||
2686 | if (hdisplay > fb->width || | |
2687 | vdisplay > fb->height || | |
2688 | x > fb->width - hdisplay || | |
2689 | y > fb->height - vdisplay) { | |
2690 | DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", | |
2691 | fb->width, fb->height, hdisplay, vdisplay, x, y, | |
2692 | crtc->invert_dimensions ? " (inverted)" : ""); | |
2693 | return -ENOSPC; | |
2694 | } | |
2695 | ||
2696 | return 0; | |
2697 | } | |
af93629d | 2698 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
c11e9283 | 2699 | |
f453ba04 DA |
2700 | /** |
2701 | * drm_mode_setcrtc - set CRTC configuration | |
065a50ed DV |
2702 | * @dev: drm device for the ioctl |
2703 | * @data: data pointer for the ioctl | |
2704 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2705 | * |
f453ba04 DA |
2706 | * Build a new CRTC configuration based on user request. |
2707 | * | |
2708 | * Called by the user via ioctl. | |
2709 | * | |
c8e32cc1 | 2710 | * Returns: |
1a498633 | 2711 | * Zero on success, negative errno on failure. |
f453ba04 DA |
2712 | */ |
2713 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
2714 | struct drm_file *file_priv) | |
2715 | { | |
2716 | struct drm_mode_config *config = &dev->mode_config; | |
2717 | struct drm_mode_crtc *crtc_req = data; | |
6653cc8d | 2718 | struct drm_crtc *crtc; |
f453ba04 DA |
2719 | struct drm_connector **connector_set = NULL, *connector; |
2720 | struct drm_framebuffer *fb = NULL; | |
2721 | struct drm_display_mode *mode = NULL; | |
2722 | struct drm_mode_set set; | |
2723 | uint32_t __user *set_connectors_ptr; | |
4a1b0714 | 2724 | int ret; |
f453ba04 DA |
2725 | int i; |
2726 | ||
fb3b06c8 DA |
2727 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2728 | return -EINVAL; | |
2729 | ||
1d97e915 VS |
2730 | /* For some reason crtc x/y offsets are signed internally. */ |
2731 | if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX) | |
2732 | return -ERANGE; | |
2733 | ||
84849903 | 2734 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
2735 | crtc = drm_crtc_find(dev, crtc_req->crtc_id); |
2736 | if (!crtc) { | |
58367ed6 | 2737 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
f27657f2 | 2738 | ret = -ENOENT; |
f453ba04 DA |
2739 | goto out; |
2740 | } | |
9440106b | 2741 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
2742 | |
2743 | if (crtc_req->mode_valid) { | |
2744 | /* If we have a mode we need a framebuffer. */ | |
2745 | /* If we pass -1, set the mode with the currently bound fb */ | |
2746 | if (crtc_req->fb_id == -1) { | |
f4510a27 | 2747 | if (!crtc->primary->fb) { |
6653cc8d VS |
2748 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
2749 | ret = -EINVAL; | |
2750 | goto out; | |
f453ba04 | 2751 | } |
f4510a27 | 2752 | fb = crtc->primary->fb; |
b0d12325 DV |
2753 | /* Make refcounting symmetric with the lookup path. */ |
2754 | drm_framebuffer_reference(fb); | |
f453ba04 | 2755 | } else { |
786b99ed DV |
2756 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
2757 | if (!fb) { | |
58367ed6 ZY |
2758 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
2759 | crtc_req->fb_id); | |
37c4e705 | 2760 | ret = -ENOENT; |
f453ba04 DA |
2761 | goto out; |
2762 | } | |
f453ba04 DA |
2763 | } |
2764 | ||
2765 | mode = drm_mode_create(dev); | |
ee34ab5b VS |
2766 | if (!mode) { |
2767 | ret = -ENOMEM; | |
2768 | goto out; | |
2769 | } | |
2770 | ||
90367bf6 VS |
2771 | ret = drm_crtc_convert_umode(mode, &crtc_req->mode); |
2772 | if (ret) { | |
2773 | DRM_DEBUG_KMS("Invalid mode\n"); | |
2774 | goto out; | |
2775 | } | |
2776 | ||
23e1ce89 VS |
2777 | mode->status = drm_mode_validate_basic(mode); |
2778 | if (mode->status != MODE_OK) { | |
2779 | ret = -EINVAL; | |
2780 | goto out; | |
2781 | } | |
2782 | ||
f453ba04 | 2783 | drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); |
5f61bb42 | 2784 | |
c11e9283 DL |
2785 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
2786 | mode, fb); | |
2787 | if (ret) | |
5f61bb42 | 2788 | goto out; |
c11e9283 | 2789 | |
f453ba04 DA |
2790 | } |
2791 | ||
2792 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 2793 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
2794 | ret = -EINVAL; |
2795 | goto out; | |
2796 | } | |
2797 | ||
7781de74 | 2798 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
58367ed6 | 2799 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
2800 | crtc_req->count_connectors); |
2801 | ret = -EINVAL; | |
2802 | goto out; | |
2803 | } | |
2804 | ||
2805 | if (crtc_req->count_connectors > 0) { | |
2806 | u32 out_id; | |
2807 | ||
2808 | /* Avoid unbounded kernel memory allocation */ | |
2809 | if (crtc_req->count_connectors > config->num_connector) { | |
2810 | ret = -EINVAL; | |
2811 | goto out; | |
2812 | } | |
2813 | ||
2f6c5389 TR |
2814 | connector_set = kmalloc_array(crtc_req->count_connectors, |
2815 | sizeof(struct drm_connector *), | |
2816 | GFP_KERNEL); | |
f453ba04 DA |
2817 | if (!connector_set) { |
2818 | ret = -ENOMEM; | |
2819 | goto out; | |
2820 | } | |
2821 | ||
2822 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
81f6c7f8 | 2823 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
f453ba04 DA |
2824 | if (get_user(out_id, &set_connectors_ptr[i])) { |
2825 | ret = -EFAULT; | |
2826 | goto out; | |
2827 | } | |
2828 | ||
a2b34e22 RC |
2829 | connector = drm_connector_find(dev, out_id); |
2830 | if (!connector) { | |
58367ed6 ZY |
2831 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
2832 | out_id); | |
f27657f2 | 2833 | ret = -ENOENT; |
f453ba04 DA |
2834 | goto out; |
2835 | } | |
9440106b JG |
2836 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
2837 | connector->base.id, | |
25933820 | 2838 | connector->name); |
f453ba04 DA |
2839 | |
2840 | connector_set[i] = connector; | |
2841 | } | |
2842 | } | |
2843 | ||
2844 | set.crtc = crtc; | |
2845 | set.x = crtc_req->x; | |
2846 | set.y = crtc_req->y; | |
2847 | set.mode = mode; | |
2848 | set.connectors = connector_set; | |
2849 | set.num_connectors = crtc_req->count_connectors; | |
5ef5f72f | 2850 | set.fb = fb; |
2d13b679 | 2851 | ret = drm_mode_set_config_internal(&set); |
f453ba04 DA |
2852 | |
2853 | out: | |
b0d12325 DV |
2854 | if (fb) |
2855 | drm_framebuffer_unreference(fb); | |
2856 | ||
f453ba04 | 2857 | kfree(connector_set); |
ee34ab5b | 2858 | drm_mode_destroy(dev, mode); |
84849903 | 2859 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2860 | return ret; |
2861 | } | |
2862 | ||
161d0dc1 MR |
2863 | /** |
2864 | * drm_mode_cursor_universal - translate legacy cursor ioctl call into a | |
2865 | * universal plane handler call | |
2866 | * @crtc: crtc to update cursor for | |
2867 | * @req: data pointer for the ioctl | |
2868 | * @file_priv: drm file for the ioctl call | |
2869 | * | |
2870 | * Legacy cursor ioctl's work directly with driver buffer handles. To | |
2871 | * translate legacy ioctl calls into universal plane handler calls, we need to | |
2872 | * wrap the native buffer handle in a drm_framebuffer. | |
2873 | * | |
2874 | * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB | |
2875 | * buffer with a pitch of 4*width; the universal plane interface should be used | |
2876 | * directly in cases where the hardware can support other buffer settings and | |
2877 | * userspace wants to make use of these capabilities. | |
2878 | * | |
2879 | * Returns: | |
1a498633 | 2880 | * Zero on success, negative errno on failure. |
161d0dc1 MR |
2881 | */ |
2882 | static int drm_mode_cursor_universal(struct drm_crtc *crtc, | |
2883 | struct drm_mode_cursor2 *req, | |
2884 | struct drm_file *file_priv) | |
2885 | { | |
2886 | struct drm_device *dev = crtc->dev; | |
2887 | struct drm_framebuffer *fb = NULL; | |
2888 | struct drm_mode_fb_cmd2 fbreq = { | |
2889 | .width = req->width, | |
2890 | .height = req->height, | |
2891 | .pixel_format = DRM_FORMAT_ARGB8888, | |
2892 | .pitches = { req->width * 4 }, | |
2893 | .handles = { req->handle }, | |
2894 | }; | |
2895 | int32_t crtc_x, crtc_y; | |
2896 | uint32_t crtc_w = 0, crtc_h = 0; | |
2897 | uint32_t src_w = 0, src_h = 0; | |
2898 | int ret = 0; | |
2899 | ||
2900 | BUG_ON(!crtc->cursor); | |
f2b50c11 | 2901 | WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL); |
161d0dc1 MR |
2902 | |
2903 | /* | |
2904 | * Obtain fb we'll be using (either new or existing) and take an extra | |
2905 | * reference to it if fb != null. setplane will take care of dropping | |
2906 | * the reference if the plane update fails. | |
2907 | */ | |
2908 | if (req->flags & DRM_MODE_CURSOR_BO) { | |
2909 | if (req->handle) { | |
2910 | fb = add_framebuffer_internal(dev, &fbreq, file_priv); | |
2911 | if (IS_ERR(fb)) { | |
2912 | DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n"); | |
2913 | return PTR_ERR(fb); | |
2914 | } | |
2915 | ||
2916 | drm_framebuffer_reference(fb); | |
2917 | } else { | |
2918 | fb = NULL; | |
2919 | } | |
2920 | } else { | |
161d0dc1 MR |
2921 | fb = crtc->cursor->fb; |
2922 | if (fb) | |
2923 | drm_framebuffer_reference(fb); | |
161d0dc1 MR |
2924 | } |
2925 | ||
2926 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
2927 | crtc_x = req->x; | |
2928 | crtc_y = req->y; | |
2929 | } else { | |
2930 | crtc_x = crtc->cursor_x; | |
2931 | crtc_y = crtc->cursor_y; | |
2932 | } | |
2933 | ||
2934 | if (fb) { | |
2935 | crtc_w = fb->width; | |
2936 | crtc_h = fb->height; | |
2937 | src_w = fb->width << 16; | |
2938 | src_h = fb->height << 16; | |
2939 | } | |
2940 | ||
2941 | /* | |
2942 | * setplane_internal will take care of deref'ing either the old or new | |
2943 | * framebuffer depending on success. | |
2944 | */ | |
f2b50c11 | 2945 | ret = __setplane_internal(crtc->cursor, crtc, fb, |
161d0dc1 MR |
2946 | crtc_x, crtc_y, crtc_w, crtc_h, |
2947 | 0, 0, src_w, src_h); | |
2948 | ||
2949 | /* Update successful; save new cursor position, if necessary */ | |
2950 | if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) { | |
2951 | crtc->cursor_x = req->x; | |
2952 | crtc->cursor_y = req->y; | |
2953 | } | |
2954 | ||
2955 | return ret; | |
2956 | } | |
2957 | ||
4c813d4d DA |
2958 | static int drm_mode_cursor_common(struct drm_device *dev, |
2959 | struct drm_mode_cursor2 *req, | |
2960 | struct drm_file *file_priv) | |
f453ba04 | 2961 | { |
f453ba04 DA |
2962 | struct drm_crtc *crtc; |
2963 | int ret = 0; | |
2964 | ||
fb3b06c8 DA |
2965 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2966 | return -EINVAL; | |
2967 | ||
7c4eaca4 | 2968 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
f453ba04 | 2969 | return -EINVAL; |
f453ba04 | 2970 | |
a2b34e22 RC |
2971 | crtc = drm_crtc_find(dev, req->crtc_id); |
2972 | if (!crtc) { | |
58367ed6 | 2973 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
f27657f2 | 2974 | return -ENOENT; |
f453ba04 | 2975 | } |
f453ba04 | 2976 | |
161d0dc1 MR |
2977 | /* |
2978 | * If this crtc has a universal cursor plane, call that plane's update | |
2979 | * handler rather than using legacy cursor handlers. | |
2980 | */ | |
4d02e2de | 2981 | drm_modeset_lock_crtc(crtc, crtc->cursor); |
f2b50c11 DV |
2982 | if (crtc->cursor) { |
2983 | ret = drm_mode_cursor_universal(crtc, req, file_priv); | |
2984 | goto out; | |
2985 | } | |
2986 | ||
f453ba04 | 2987 | if (req->flags & DRM_MODE_CURSOR_BO) { |
4c813d4d | 2988 | if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { |
f453ba04 DA |
2989 | ret = -ENXIO; |
2990 | goto out; | |
2991 | } | |
2992 | /* Turns off the cursor if handle is 0 */ | |
4c813d4d DA |
2993 | if (crtc->funcs->cursor_set2) |
2994 | ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, | |
2995 | req->width, req->height, req->hot_x, req->hot_y); | |
2996 | else | |
2997 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, | |
2998 | req->width, req->height); | |
f453ba04 DA |
2999 | } |
3000 | ||
3001 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
3002 | if (crtc->funcs->cursor_move) { | |
3003 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); | |
3004 | } else { | |
f453ba04 DA |
3005 | ret = -EFAULT; |
3006 | goto out; | |
3007 | } | |
3008 | } | |
3009 | out: | |
d059f652 | 3010 | drm_modeset_unlock_crtc(crtc); |
dac35663 | 3011 | |
f453ba04 | 3012 | return ret; |
4c813d4d DA |
3013 | |
3014 | } | |
c8e32cc1 DV |
3015 | |
3016 | ||
3017 | /** | |
3018 | * drm_mode_cursor_ioctl - set CRTC's cursor configuration | |
3019 | * @dev: drm device for the ioctl | |
3020 | * @data: data pointer for the ioctl | |
3021 | * @file_priv: drm file for the ioctl call | |
3022 | * | |
3023 | * Set the cursor configuration based on user request. | |
3024 | * | |
3025 | * Called by the user via ioctl. | |
3026 | * | |
3027 | * Returns: | |
1a498633 | 3028 | * Zero on success, negative errno on failure. |
c8e32cc1 | 3029 | */ |
4c813d4d | 3030 | int drm_mode_cursor_ioctl(struct drm_device *dev, |
c8e32cc1 | 3031 | void *data, struct drm_file *file_priv) |
4c813d4d DA |
3032 | { |
3033 | struct drm_mode_cursor *req = data; | |
3034 | struct drm_mode_cursor2 new_req; | |
3035 | ||
3036 | memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); | |
3037 | new_req.hot_x = new_req.hot_y = 0; | |
3038 | ||
3039 | return drm_mode_cursor_common(dev, &new_req, file_priv); | |
3040 | } | |
3041 | ||
c8e32cc1 DV |
3042 | /** |
3043 | * drm_mode_cursor2_ioctl - set CRTC's cursor configuration | |
3044 | * @dev: drm device for the ioctl | |
3045 | * @data: data pointer for the ioctl | |
3046 | * @file_priv: drm file for the ioctl call | |
3047 | * | |
3048 | * Set the cursor configuration based on user request. This implements the 2nd | |
3049 | * version of the cursor ioctl, which allows userspace to additionally specify | |
3050 | * the hotspot of the pointer. | |
3051 | * | |
3052 | * Called by the user via ioctl. | |
3053 | * | |
3054 | * Returns: | |
1a498633 | 3055 | * Zero on success, negative errno on failure. |
c8e32cc1 | 3056 | */ |
4c813d4d DA |
3057 | int drm_mode_cursor2_ioctl(struct drm_device *dev, |
3058 | void *data, struct drm_file *file_priv) | |
3059 | { | |
3060 | struct drm_mode_cursor2 *req = data; | |
4dfd909f | 3061 | |
4c813d4d | 3062 | return drm_mode_cursor_common(dev, req, file_priv); |
f453ba04 DA |
3063 | } |
3064 | ||
c8e32cc1 DV |
3065 | /** |
3066 | * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description | |
3067 | * @bpp: bits per pixels | |
3068 | * @depth: bit depth per pixel | |
3069 | * | |
3070 | * Computes a drm fourcc pixel format code for the given @bpp/@depth values. | |
3071 | * Useful in fbdev emulation code, since that deals in those values. | |
3072 | */ | |
308e5bcb JB |
3073 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) |
3074 | { | |
3075 | uint32_t fmt; | |
3076 | ||
3077 | switch (bpp) { | |
3078 | case 8: | |
d84f031b | 3079 | fmt = DRM_FORMAT_C8; |
308e5bcb JB |
3080 | break; |
3081 | case 16: | |
3082 | if (depth == 15) | |
04b3924d | 3083 | fmt = DRM_FORMAT_XRGB1555; |
308e5bcb | 3084 | else |
04b3924d | 3085 | fmt = DRM_FORMAT_RGB565; |
308e5bcb JB |
3086 | break; |
3087 | case 24: | |
04b3924d | 3088 | fmt = DRM_FORMAT_RGB888; |
308e5bcb JB |
3089 | break; |
3090 | case 32: | |
3091 | if (depth == 24) | |
04b3924d | 3092 | fmt = DRM_FORMAT_XRGB8888; |
308e5bcb | 3093 | else if (depth == 30) |
04b3924d | 3094 | fmt = DRM_FORMAT_XRGB2101010; |
308e5bcb | 3095 | else |
04b3924d | 3096 | fmt = DRM_FORMAT_ARGB8888; |
308e5bcb JB |
3097 | break; |
3098 | default: | |
04b3924d VS |
3099 | DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); |
3100 | fmt = DRM_FORMAT_XRGB8888; | |
308e5bcb JB |
3101 | break; |
3102 | } | |
3103 | ||
3104 | return fmt; | |
3105 | } | |
3106 | EXPORT_SYMBOL(drm_mode_legacy_fb_format); | |
3107 | ||
f453ba04 DA |
3108 | /** |
3109 | * drm_mode_addfb - add an FB to the graphics configuration | |
065a50ed DV |
3110 | * @dev: drm device for the ioctl |
3111 | * @data: data pointer for the ioctl | |
3112 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3113 | * |
c8e32cc1 | 3114 | * Add a new FB to the specified CRTC, given a user request. This is the |
209f5527 | 3115 | * original addfb ioctl which only supported RGB formats. |
f453ba04 DA |
3116 | * |
3117 | * Called by the user via ioctl. | |
3118 | * | |
c8e32cc1 | 3119 | * Returns: |
1a498633 | 3120 | * Zero on success, negative errno on failure. |
f453ba04 DA |
3121 | */ |
3122 | int drm_mode_addfb(struct drm_device *dev, | |
3123 | void *data, struct drm_file *file_priv) | |
3124 | { | |
308e5bcb JB |
3125 | struct drm_mode_fb_cmd *or = data; |
3126 | struct drm_mode_fb_cmd2 r = {}; | |
228f2cb3 | 3127 | int ret; |
308e5bcb | 3128 | |
228f2cb3 | 3129 | /* convert to new format and call new ioctl */ |
308e5bcb JB |
3130 | r.fb_id = or->fb_id; |
3131 | r.width = or->width; | |
3132 | r.height = or->height; | |
3133 | r.pitches[0] = or->pitch; | |
3134 | r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); | |
3135 | r.handles[0] = or->handle; | |
3136 | ||
228f2cb3 CE |
3137 | ret = drm_mode_addfb2(dev, &r, file_priv); |
3138 | if (ret) | |
3139 | return ret; | |
308e5bcb | 3140 | |
228f2cb3 | 3141 | or->fb_id = r.fb_id; |
4b096ac1 | 3142 | |
baf698b0 | 3143 | return 0; |
308e5bcb JB |
3144 | } |
3145 | ||
cff91b62 | 3146 | static int format_check(const struct drm_mode_fb_cmd2 *r) |
935b5977 VS |
3147 | { |
3148 | uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; | |
3149 | ||
3150 | switch (format) { | |
3151 | case DRM_FORMAT_C8: | |
3152 | case DRM_FORMAT_RGB332: | |
3153 | case DRM_FORMAT_BGR233: | |
3154 | case DRM_FORMAT_XRGB4444: | |
3155 | case DRM_FORMAT_XBGR4444: | |
3156 | case DRM_FORMAT_RGBX4444: | |
3157 | case DRM_FORMAT_BGRX4444: | |
3158 | case DRM_FORMAT_ARGB4444: | |
3159 | case DRM_FORMAT_ABGR4444: | |
3160 | case DRM_FORMAT_RGBA4444: | |
3161 | case DRM_FORMAT_BGRA4444: | |
3162 | case DRM_FORMAT_XRGB1555: | |
3163 | case DRM_FORMAT_XBGR1555: | |
3164 | case DRM_FORMAT_RGBX5551: | |
3165 | case DRM_FORMAT_BGRX5551: | |
3166 | case DRM_FORMAT_ARGB1555: | |
3167 | case DRM_FORMAT_ABGR1555: | |
3168 | case DRM_FORMAT_RGBA5551: | |
3169 | case DRM_FORMAT_BGRA5551: | |
3170 | case DRM_FORMAT_RGB565: | |
3171 | case DRM_FORMAT_BGR565: | |
3172 | case DRM_FORMAT_RGB888: | |
3173 | case DRM_FORMAT_BGR888: | |
3174 | case DRM_FORMAT_XRGB8888: | |
3175 | case DRM_FORMAT_XBGR8888: | |
3176 | case DRM_FORMAT_RGBX8888: | |
3177 | case DRM_FORMAT_BGRX8888: | |
3178 | case DRM_FORMAT_ARGB8888: | |
3179 | case DRM_FORMAT_ABGR8888: | |
3180 | case DRM_FORMAT_RGBA8888: | |
3181 | case DRM_FORMAT_BGRA8888: | |
3182 | case DRM_FORMAT_XRGB2101010: | |
3183 | case DRM_FORMAT_XBGR2101010: | |
3184 | case DRM_FORMAT_RGBX1010102: | |
3185 | case DRM_FORMAT_BGRX1010102: | |
3186 | case DRM_FORMAT_ARGB2101010: | |
3187 | case DRM_FORMAT_ABGR2101010: | |
3188 | case DRM_FORMAT_RGBA1010102: | |
3189 | case DRM_FORMAT_BGRA1010102: | |
3190 | case DRM_FORMAT_YUYV: | |
3191 | case DRM_FORMAT_YVYU: | |
3192 | case DRM_FORMAT_UYVY: | |
3193 | case DRM_FORMAT_VYUY: | |
3194 | case DRM_FORMAT_AYUV: | |
3195 | case DRM_FORMAT_NV12: | |
3196 | case DRM_FORMAT_NV21: | |
3197 | case DRM_FORMAT_NV16: | |
3198 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
3199 | case DRM_FORMAT_NV24: |
3200 | case DRM_FORMAT_NV42: | |
935b5977 VS |
3201 | case DRM_FORMAT_YUV410: |
3202 | case DRM_FORMAT_YVU410: | |
3203 | case DRM_FORMAT_YUV411: | |
3204 | case DRM_FORMAT_YVU411: | |
3205 | case DRM_FORMAT_YUV420: | |
3206 | case DRM_FORMAT_YVU420: | |
3207 | case DRM_FORMAT_YUV422: | |
3208 | case DRM_FORMAT_YVU422: | |
3209 | case DRM_FORMAT_YUV444: | |
3210 | case DRM_FORMAT_YVU444: | |
3211 | return 0; | |
3212 | default: | |
23c453a4 VS |
3213 | DRM_DEBUG_KMS("invalid pixel format %s\n", |
3214 | drm_get_format_name(r->pixel_format)); | |
935b5977 VS |
3215 | return -EINVAL; |
3216 | } | |
3217 | } | |
3218 | ||
cff91b62 | 3219 | static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) |
d1b45d5f VS |
3220 | { |
3221 | int ret, hsub, vsub, num_planes, i; | |
3222 | ||
3223 | ret = format_check(r); | |
3224 | if (ret) { | |
6ba6d03e VS |
3225 | DRM_DEBUG_KMS("bad framebuffer format %s\n", |
3226 | drm_get_format_name(r->pixel_format)); | |
d1b45d5f VS |
3227 | return ret; |
3228 | } | |
3229 | ||
3230 | hsub = drm_format_horz_chroma_subsampling(r->pixel_format); | |
3231 | vsub = drm_format_vert_chroma_subsampling(r->pixel_format); | |
3232 | num_planes = drm_format_num_planes(r->pixel_format); | |
3233 | ||
3234 | if (r->width == 0 || r->width % hsub) { | |
209f5527 | 3235 | DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width); |
d1b45d5f VS |
3236 | return -EINVAL; |
3237 | } | |
3238 | ||
3239 | if (r->height == 0 || r->height % vsub) { | |
1aa1b11c | 3240 | DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); |
d1b45d5f VS |
3241 | return -EINVAL; |
3242 | } | |
3243 | ||
3244 | for (i = 0; i < num_planes; i++) { | |
3245 | unsigned int width = r->width / (i != 0 ? hsub : 1); | |
b180b5d1 VS |
3246 | unsigned int height = r->height / (i != 0 ? vsub : 1); |
3247 | unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); | |
d1b45d5f VS |
3248 | |
3249 | if (!r->handles[i]) { | |
1aa1b11c | 3250 | DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); |
d1b45d5f VS |
3251 | return -EINVAL; |
3252 | } | |
3253 | ||
b180b5d1 VS |
3254 | if ((uint64_t) width * cpp > UINT_MAX) |
3255 | return -ERANGE; | |
3256 | ||
3257 | if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) | |
3258 | return -ERANGE; | |
3259 | ||
3260 | if (r->pitches[i] < width * cpp) { | |
1aa1b11c | 3261 | DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); |
d1b45d5f VS |
3262 | return -EINVAL; |
3263 | } | |
3264 | } | |
3265 | ||
3266 | return 0; | |
3267 | } | |
3268 | ||
c394c2b0 MR |
3269 | static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev, |
3270 | struct drm_mode_fb_cmd2 *r, | |
3271 | struct drm_file *file_priv) | |
308e5bcb | 3272 | { |
f453ba04 DA |
3273 | struct drm_mode_config *config = &dev->mode_config; |
3274 | struct drm_framebuffer *fb; | |
4a1b0714 | 3275 | int ret; |
f453ba04 | 3276 | |
e3cc3520 VS |
3277 | if (r->flags & ~DRM_MODE_FB_INTERLACED) { |
3278 | DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); | |
c394c2b0 | 3279 | return ERR_PTR(-EINVAL); |
e3cc3520 VS |
3280 | } |
3281 | ||
f453ba04 | 3282 | if ((config->min_width > r->width) || (r->width > config->max_width)) { |
1aa1b11c | 3283 | DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", |
8cf5c917 | 3284 | r->width, config->min_width, config->max_width); |
c394c2b0 | 3285 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
3286 | } |
3287 | if ((config->min_height > r->height) || (r->height > config->max_height)) { | |
1aa1b11c | 3288 | DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", |
8cf5c917 | 3289 | r->height, config->min_height, config->max_height); |
c394c2b0 | 3290 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
3291 | } |
3292 | ||
d1b45d5f VS |
3293 | ret = framebuffer_check(r); |
3294 | if (ret) | |
c394c2b0 | 3295 | return ERR_PTR(ret); |
935b5977 | 3296 | |
f453ba04 | 3297 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
cce13ff7 | 3298 | if (IS_ERR(fb)) { |
1aa1b11c | 3299 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
c394c2b0 | 3300 | return fb; |
f453ba04 DA |
3301 | } |
3302 | ||
4b096ac1 | 3303 | mutex_lock(&file_priv->fbs_lock); |
e0c8463a | 3304 | r->fb_id = fb->base.id; |
f453ba04 | 3305 | list_add(&fb->filp_head, &file_priv->fbs); |
9440106b | 3306 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); |
4b096ac1 | 3307 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 3308 | |
c394c2b0 MR |
3309 | return fb; |
3310 | } | |
4b096ac1 | 3311 | |
c394c2b0 MR |
3312 | /** |
3313 | * drm_mode_addfb2 - add an FB to the graphics configuration | |
3314 | * @dev: drm device for the ioctl | |
3315 | * @data: data pointer for the ioctl | |
3316 | * @file_priv: drm file for the ioctl call | |
3317 | * | |
3318 | * Add a new FB to the specified CRTC, given a user request with format. This is | |
3319 | * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers | |
3320 | * and uses fourcc codes as pixel format specifiers. | |
3321 | * | |
3322 | * Called by the user via ioctl. | |
3323 | * | |
3324 | * Returns: | |
1a498633 | 3325 | * Zero on success, negative errno on failure. |
c394c2b0 MR |
3326 | */ |
3327 | int drm_mode_addfb2(struct drm_device *dev, | |
3328 | void *data, struct drm_file *file_priv) | |
3329 | { | |
3330 | struct drm_framebuffer *fb; | |
3331 | ||
3332 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3333 | return -EINVAL; | |
3334 | ||
3335 | fb = add_framebuffer_internal(dev, data, file_priv); | |
3336 | if (IS_ERR(fb)) | |
3337 | return PTR_ERR(fb); | |
3338 | ||
3339 | return 0; | |
f453ba04 DA |
3340 | } |
3341 | ||
3342 | /** | |
3343 | * drm_mode_rmfb - remove an FB from the configuration | |
065a50ed DV |
3344 | * @dev: drm device for the ioctl |
3345 | * @data: data pointer for the ioctl | |
3346 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3347 | * |
f453ba04 DA |
3348 | * Remove the FB specified by the user. |
3349 | * | |
3350 | * Called by the user via ioctl. | |
3351 | * | |
c8e32cc1 | 3352 | * Returns: |
1a498633 | 3353 | * Zero on success, negative errno on failure. |
f453ba04 DA |
3354 | */ |
3355 | int drm_mode_rmfb(struct drm_device *dev, | |
3356 | void *data, struct drm_file *file_priv) | |
3357 | { | |
f453ba04 DA |
3358 | struct drm_framebuffer *fb = NULL; |
3359 | struct drm_framebuffer *fbl = NULL; | |
3360 | uint32_t *id = data; | |
f453ba04 DA |
3361 | int found = 0; |
3362 | ||
fb3b06c8 DA |
3363 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3364 | return -EINVAL; | |
3365 | ||
4b096ac1 | 3366 | mutex_lock(&file_priv->fbs_lock); |
2b677e8c DV |
3367 | mutex_lock(&dev->mode_config.fb_lock); |
3368 | fb = __drm_framebuffer_lookup(dev, *id); | |
3369 | if (!fb) | |
3370 | goto fail_lookup; | |
3371 | ||
f453ba04 DA |
3372 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
3373 | if (fb == fbl) | |
3374 | found = 1; | |
2b677e8c DV |
3375 | if (!found) |
3376 | goto fail_lookup; | |
3377 | ||
3378 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
3379 | __drm_framebuffer_unregister(dev, fb); | |
f453ba04 | 3380 | |
4b096ac1 | 3381 | list_del_init(&fb->filp_head); |
2b677e8c | 3382 | mutex_unlock(&dev->mode_config.fb_lock); |
4b096ac1 | 3383 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 3384 | |
4b096ac1 | 3385 | drm_framebuffer_remove(fb); |
4b096ac1 | 3386 | |
2b677e8c DV |
3387 | return 0; |
3388 | ||
3389 | fail_lookup: | |
3390 | mutex_unlock(&dev->mode_config.fb_lock); | |
3391 | mutex_unlock(&file_priv->fbs_lock); | |
3392 | ||
37c4e705 | 3393 | return -ENOENT; |
f453ba04 DA |
3394 | } |
3395 | ||
3396 | /** | |
3397 | * drm_mode_getfb - get FB info | |
065a50ed DV |
3398 | * @dev: drm device for the ioctl |
3399 | * @data: data pointer for the ioctl | |
3400 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3401 | * |
f453ba04 DA |
3402 | * Lookup the FB given its ID and return info about it. |
3403 | * | |
3404 | * Called by the user via ioctl. | |
3405 | * | |
c8e32cc1 | 3406 | * Returns: |
1a498633 | 3407 | * Zero on success, negative errno on failure. |
f453ba04 DA |
3408 | */ |
3409 | int drm_mode_getfb(struct drm_device *dev, | |
3410 | void *data, struct drm_file *file_priv) | |
3411 | { | |
3412 | struct drm_mode_fb_cmd *r = data; | |
f453ba04 | 3413 | struct drm_framebuffer *fb; |
58c0dca1 | 3414 | int ret; |
f453ba04 | 3415 | |
fb3b06c8 DA |
3416 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3417 | return -EINVAL; | |
3418 | ||
786b99ed | 3419 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
58c0dca1 | 3420 | if (!fb) |
37c4e705 | 3421 | return -ENOENT; |
f453ba04 DA |
3422 | |
3423 | r->height = fb->height; | |
3424 | r->width = fb->width; | |
3425 | r->depth = fb->depth; | |
3426 | r->bpp = fb->bits_per_pixel; | |
01f2c773 | 3427 | r->pitch = fb->pitches[0]; |
101b96f3 | 3428 | if (fb->funcs->create_handle) { |
09f308f7 | 3429 | if (file_priv->is_master || capable(CAP_SYS_ADMIN) || |
43683057 | 3430 | drm_is_control_client(file_priv)) { |
101b96f3 DH |
3431 | ret = fb->funcs->create_handle(fb, file_priv, |
3432 | &r->handle); | |
3433 | } else { | |
3434 | /* GET_FB() is an unprivileged ioctl so we must not | |
3435 | * return a buffer-handle to non-master processes! For | |
3436 | * backwards-compatibility reasons, we cannot make | |
3437 | * GET_FB() privileged, so just return an invalid handle | |
3438 | * for non-masters. */ | |
3439 | r->handle = 0; | |
3440 | ret = 0; | |
3441 | } | |
3442 | } else { | |
af26ef3b | 3443 | ret = -ENODEV; |
101b96f3 | 3444 | } |
f453ba04 | 3445 | |
58c0dca1 DV |
3446 | drm_framebuffer_unreference(fb); |
3447 | ||
f453ba04 DA |
3448 | return ret; |
3449 | } | |
3450 | ||
c8e32cc1 DV |
3451 | /** |
3452 | * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB | |
3453 | * @dev: drm device for the ioctl | |
3454 | * @data: data pointer for the ioctl | |
3455 | * @file_priv: drm file for the ioctl call | |
3456 | * | |
3457 | * Lookup the FB and flush out the damaged area supplied by userspace as a clip | |
3458 | * rectangle list. Generic userspace which does frontbuffer rendering must call | |
3459 | * this ioctl to flush out the changes on manual-update display outputs, e.g. | |
3460 | * usb display-link, mipi manual update panels or edp panel self refresh modes. | |
3461 | * | |
3462 | * Modesetting drivers which always update the frontbuffer do not need to | |
3463 | * implement the corresponding ->dirty framebuffer callback. | |
3464 | * | |
3465 | * Called by the user via ioctl. | |
3466 | * | |
3467 | * Returns: | |
1a498633 | 3468 | * Zero on success, negative errno on failure. |
c8e32cc1 | 3469 | */ |
884840aa JB |
3470 | int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
3471 | void *data, struct drm_file *file_priv) | |
3472 | { | |
3473 | struct drm_clip_rect __user *clips_ptr; | |
3474 | struct drm_clip_rect *clips = NULL; | |
3475 | struct drm_mode_fb_dirty_cmd *r = data; | |
884840aa JB |
3476 | struct drm_framebuffer *fb; |
3477 | unsigned flags; | |
3478 | int num_clips; | |
4a1b0714 | 3479 | int ret; |
884840aa | 3480 | |
fb3b06c8 DA |
3481 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3482 | return -EINVAL; | |
3483 | ||
786b99ed | 3484 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
4ccf097f | 3485 | if (!fb) |
37c4e705 | 3486 | return -ENOENT; |
884840aa JB |
3487 | |
3488 | num_clips = r->num_clips; | |
81f6c7f8 | 3489 | clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; |
884840aa JB |
3490 | |
3491 | if (!num_clips != !clips_ptr) { | |
3492 | ret = -EINVAL; | |
3493 | goto out_err1; | |
3494 | } | |
3495 | ||
3496 | flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; | |
3497 | ||
3498 | /* If userspace annotates copy, clips must come in pairs */ | |
3499 | if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { | |
3500 | ret = -EINVAL; | |
3501 | goto out_err1; | |
3502 | } | |
3503 | ||
3504 | if (num_clips && clips_ptr) { | |
a5cd3351 XW |
3505 | if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { |
3506 | ret = -EINVAL; | |
3507 | goto out_err1; | |
3508 | } | |
bd3f0ff9 | 3509 | clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); |
884840aa JB |
3510 | if (!clips) { |
3511 | ret = -ENOMEM; | |
3512 | goto out_err1; | |
3513 | } | |
3514 | ||
3515 | ret = copy_from_user(clips, clips_ptr, | |
3516 | num_clips * sizeof(*clips)); | |
e902a358 DC |
3517 | if (ret) { |
3518 | ret = -EFAULT; | |
884840aa | 3519 | goto out_err2; |
e902a358 | 3520 | } |
884840aa JB |
3521 | } |
3522 | ||
3523 | if (fb->funcs->dirty) { | |
02b00162 TH |
3524 | ret = fb->funcs->dirty(fb, file_priv, flags, r->color, |
3525 | clips, num_clips); | |
884840aa JB |
3526 | } else { |
3527 | ret = -ENOSYS; | |
884840aa JB |
3528 | } |
3529 | ||
3530 | out_err2: | |
3531 | kfree(clips); | |
3532 | out_err1: | |
4ccf097f DV |
3533 | drm_framebuffer_unreference(fb); |
3534 | ||
884840aa JB |
3535 | return ret; |
3536 | } | |
3537 | ||
3538 | ||
f453ba04 DA |
3539 | /** |
3540 | * drm_fb_release - remove and free the FBs on this file | |
065a50ed | 3541 | * @priv: drm file for the ioctl |
f453ba04 | 3542 | * |
f453ba04 DA |
3543 | * Destroy all the FBs associated with @filp. |
3544 | * | |
3545 | * Called by the user via ioctl. | |
3546 | * | |
c8e32cc1 | 3547 | * Returns: |
1a498633 | 3548 | * Zero on success, negative errno on failure. |
f453ba04 | 3549 | */ |
ea39f835 | 3550 | void drm_fb_release(struct drm_file *priv) |
f453ba04 | 3551 | { |
f453ba04 DA |
3552 | struct drm_device *dev = priv->minor->dev; |
3553 | struct drm_framebuffer *fb, *tfb; | |
3554 | ||
1b116297 DV |
3555 | /* |
3556 | * When the file gets released that means no one else can access the fb | |
e2db726b | 3557 | * list any more, so no need to grab fpriv->fbs_lock. And we need to |
1b116297 DV |
3558 | * avoid upsetting lockdep since the universal cursor code adds a |
3559 | * framebuffer while holding mutex locks. | |
3560 | * | |
3561 | * Note that a real deadlock between fpriv->fbs_lock and the modeset | |
3562 | * locks is impossible here since no one else but this function can get | |
3563 | * at it any more. | |
3564 | */ | |
f453ba04 | 3565 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
2b677e8c DV |
3566 | |
3567 | mutex_lock(&dev->mode_config.fb_lock); | |
3568 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
3569 | __drm_framebuffer_unregister(dev, fb); | |
3570 | mutex_unlock(&dev->mode_config.fb_lock); | |
3571 | ||
4b096ac1 | 3572 | list_del_init(&fb->filp_head); |
2b677e8c DV |
3573 | |
3574 | /* This will also drop the fpriv->fbs reference. */ | |
f7eff60e | 3575 | drm_framebuffer_remove(fb); |
f453ba04 | 3576 | } |
f453ba04 DA |
3577 | } |
3578 | ||
c8e32cc1 DV |
3579 | /** |
3580 | * drm_property_create - create a new property type | |
3581 | * @dev: drm device | |
3582 | * @flags: flags specifying the property type | |
3583 | * @name: name of the property | |
3584 | * @num_values: number of pre-defined values | |
3585 | * | |
3586 | * This creates a new generic drm property which can then be attached to a drm | |
3587 | * object with drm_object_attach_property. The returned property object must be | |
3588 | * freed with drm_property_destroy. | |
3589 | * | |
3b5b9932 DL |
3590 | * Note that the DRM core keeps a per-device list of properties and that, if |
3591 | * drm_mode_config_cleanup() is called, it will destroy all properties created | |
3592 | * by the driver. | |
3593 | * | |
c8e32cc1 DV |
3594 | * Returns: |
3595 | * A pointer to the newly created property on success, NULL on failure. | |
3596 | */ | |
f453ba04 DA |
3597 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
3598 | const char *name, int num_values) | |
3599 | { | |
3600 | struct drm_property *property = NULL; | |
6bfc56aa | 3601 | int ret; |
f453ba04 DA |
3602 | |
3603 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); | |
3604 | if (!property) | |
3605 | return NULL; | |
3606 | ||
98f75de4 RC |
3607 | property->dev = dev; |
3608 | ||
f453ba04 | 3609 | if (num_values) { |
bd3f0ff9 TR |
3610 | property->values = kcalloc(num_values, sizeof(uint64_t), |
3611 | GFP_KERNEL); | |
f453ba04 DA |
3612 | if (!property->values) |
3613 | goto fail; | |
3614 | } | |
3615 | ||
6bfc56aa VS |
3616 | ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
3617 | if (ret) | |
3618 | goto fail; | |
3619 | ||
f453ba04 DA |
3620 | property->flags = flags; |
3621 | property->num_values = num_values; | |
3758b341 | 3622 | INIT_LIST_HEAD(&property->enum_list); |
f453ba04 | 3623 | |
471dd2ef | 3624 | if (name) { |
f453ba04 | 3625 | strncpy(property->name, name, DRM_PROP_NAME_LEN); |
471dd2ef VL |
3626 | property->name[DRM_PROP_NAME_LEN-1] = '\0'; |
3627 | } | |
f453ba04 DA |
3628 | |
3629 | list_add_tail(&property->head, &dev->mode_config.property_list); | |
5ea22f24 RC |
3630 | |
3631 | WARN_ON(!drm_property_type_valid(property)); | |
3632 | ||
f453ba04 DA |
3633 | return property; |
3634 | fail: | |
6bfc56aa | 3635 | kfree(property->values); |
f453ba04 DA |
3636 | kfree(property); |
3637 | return NULL; | |
3638 | } | |
3639 | EXPORT_SYMBOL(drm_property_create); | |
3640 | ||
c8e32cc1 | 3641 | /** |
2aa9d2bc | 3642 | * drm_property_create_enum - create a new enumeration property type |
c8e32cc1 DV |
3643 | * @dev: drm device |
3644 | * @flags: flags specifying the property type | |
3645 | * @name: name of the property | |
3646 | * @props: enumeration lists with property values | |
3647 | * @num_values: number of pre-defined values | |
3648 | * | |
3649 | * This creates a new generic drm property which can then be attached to a drm | |
3650 | * object with drm_object_attach_property. The returned property object must be | |
3651 | * freed with drm_property_destroy. | |
3652 | * | |
3653 | * Userspace is only allowed to set one of the predefined values for enumeration | |
3654 | * properties. | |
3655 | * | |
3656 | * Returns: | |
3657 | * A pointer to the newly created property on success, NULL on failure. | |
3658 | */ | |
4a67d391 SH |
3659 | struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
3660 | const char *name, | |
3661 | const struct drm_prop_enum_list *props, | |
3662 | int num_values) | |
3663 | { | |
3664 | struct drm_property *property; | |
3665 | int i, ret; | |
3666 | ||
3667 | flags |= DRM_MODE_PROP_ENUM; | |
3668 | ||
3669 | property = drm_property_create(dev, flags, name, num_values); | |
3670 | if (!property) | |
3671 | return NULL; | |
3672 | ||
3673 | for (i = 0; i < num_values; i++) { | |
3674 | ret = drm_property_add_enum(property, i, | |
3675 | props[i].type, | |
3676 | props[i].name); | |
3677 | if (ret) { | |
3678 | drm_property_destroy(dev, property); | |
3679 | return NULL; | |
3680 | } | |
3681 | } | |
3682 | ||
3683 | return property; | |
3684 | } | |
3685 | EXPORT_SYMBOL(drm_property_create_enum); | |
3686 | ||
c8e32cc1 | 3687 | /** |
2aa9d2bc | 3688 | * drm_property_create_bitmask - create a new bitmask property type |
c8e32cc1 DV |
3689 | * @dev: drm device |
3690 | * @flags: flags specifying the property type | |
3691 | * @name: name of the property | |
3692 | * @props: enumeration lists with property bitflags | |
295ee853 DV |
3693 | * @num_props: size of the @props array |
3694 | * @supported_bits: bitmask of all supported enumeration values | |
c8e32cc1 | 3695 | * |
295ee853 | 3696 | * This creates a new bitmask drm property which can then be attached to a drm |
c8e32cc1 DV |
3697 | * object with drm_object_attach_property. The returned property object must be |
3698 | * freed with drm_property_destroy. | |
3699 | * | |
3700 | * Compared to plain enumeration properties userspace is allowed to set any | |
3701 | * or'ed together combination of the predefined property bitflag values | |
3702 | * | |
3703 | * Returns: | |
3704 | * A pointer to the newly created property on success, NULL on failure. | |
3705 | */ | |
49e27545 RC |
3706 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
3707 | int flags, const char *name, | |
3708 | const struct drm_prop_enum_list *props, | |
7689ffb3 VS |
3709 | int num_props, |
3710 | uint64_t supported_bits) | |
49e27545 RC |
3711 | { |
3712 | struct drm_property *property; | |
7689ffb3 VS |
3713 | int i, ret, index = 0; |
3714 | int num_values = hweight64(supported_bits); | |
49e27545 RC |
3715 | |
3716 | flags |= DRM_MODE_PROP_BITMASK; | |
3717 | ||
3718 | property = drm_property_create(dev, flags, name, num_values); | |
3719 | if (!property) | |
3720 | return NULL; | |
7689ffb3 VS |
3721 | for (i = 0; i < num_props; i++) { |
3722 | if (!(supported_bits & (1ULL << props[i].type))) | |
3723 | continue; | |
49e27545 | 3724 | |
7689ffb3 VS |
3725 | if (WARN_ON(index >= num_values)) { |
3726 | drm_property_destroy(dev, property); | |
3727 | return NULL; | |
3728 | } | |
3729 | ||
3730 | ret = drm_property_add_enum(property, index++, | |
49e27545 RC |
3731 | props[i].type, |
3732 | props[i].name); | |
3733 | if (ret) { | |
3734 | drm_property_destroy(dev, property); | |
3735 | return NULL; | |
3736 | } | |
3737 | } | |
3738 | ||
3739 | return property; | |
3740 | } | |
3741 | EXPORT_SYMBOL(drm_property_create_bitmask); | |
3742 | ||
ebc44cf3 RC |
3743 | static struct drm_property *property_create_range(struct drm_device *dev, |
3744 | int flags, const char *name, | |
3745 | uint64_t min, uint64_t max) | |
3746 | { | |
3747 | struct drm_property *property; | |
3748 | ||
3749 | property = drm_property_create(dev, flags, name, 2); | |
3750 | if (!property) | |
3751 | return NULL; | |
3752 | ||
3753 | property->values[0] = min; | |
3754 | property->values[1] = max; | |
3755 | ||
3756 | return property; | |
3757 | } | |
3758 | ||
c8e32cc1 | 3759 | /** |
960cd9d4 | 3760 | * drm_property_create_range - create a new unsigned ranged property type |
c8e32cc1 DV |
3761 | * @dev: drm device |
3762 | * @flags: flags specifying the property type | |
3763 | * @name: name of the property | |
3764 | * @min: minimum value of the property | |
3765 | * @max: maximum value of the property | |
3766 | * | |
3767 | * This creates a new generic drm property which can then be attached to a drm | |
3768 | * object with drm_object_attach_property. The returned property object must be | |
3769 | * freed with drm_property_destroy. | |
3770 | * | |
960cd9d4 DV |
3771 | * Userspace is allowed to set any unsigned integer value in the (min, max) |
3772 | * range inclusive. | |
c8e32cc1 DV |
3773 | * |
3774 | * Returns: | |
3775 | * A pointer to the newly created property on success, NULL on failure. | |
3776 | */ | |
d9bc3c02 SH |
3777 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
3778 | const char *name, | |
3779 | uint64_t min, uint64_t max) | |
3780 | { | |
ebc44cf3 RC |
3781 | return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, |
3782 | name, min, max); | |
d9bc3c02 SH |
3783 | } |
3784 | EXPORT_SYMBOL(drm_property_create_range); | |
3785 | ||
960cd9d4 DV |
3786 | /** |
3787 | * drm_property_create_signed_range - create a new signed ranged property type | |
3788 | * @dev: drm device | |
3789 | * @flags: flags specifying the property type | |
3790 | * @name: name of the property | |
3791 | * @min: minimum value of the property | |
3792 | * @max: maximum value of the property | |
3793 | * | |
3794 | * This creates a new generic drm property which can then be attached to a drm | |
3795 | * object with drm_object_attach_property. The returned property object must be | |
3796 | * freed with drm_property_destroy. | |
3797 | * | |
3798 | * Userspace is allowed to set any signed integer value in the (min, max) | |
3799 | * range inclusive. | |
3800 | * | |
3801 | * Returns: | |
3802 | * A pointer to the newly created property on success, NULL on failure. | |
3803 | */ | |
ebc44cf3 RC |
3804 | struct drm_property *drm_property_create_signed_range(struct drm_device *dev, |
3805 | int flags, const char *name, | |
3806 | int64_t min, int64_t max) | |
3807 | { | |
3808 | return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, | |
3809 | name, I642U64(min), I642U64(max)); | |
3810 | } | |
3811 | EXPORT_SYMBOL(drm_property_create_signed_range); | |
3812 | ||
960cd9d4 DV |
3813 | /** |
3814 | * drm_property_create_object - create a new object property type | |
3815 | * @dev: drm device | |
3816 | * @flags: flags specifying the property type | |
3817 | * @name: name of the property | |
3818 | * @type: object type from DRM_MODE_OBJECT_* defines | |
3819 | * | |
3820 | * This creates a new generic drm property which can then be attached to a drm | |
3821 | * object with drm_object_attach_property. The returned property object must be | |
3822 | * freed with drm_property_destroy. | |
3823 | * | |
3824 | * Userspace is only allowed to set this to any property value of the given | |
3825 | * @type. Only useful for atomic properties, which is enforced. | |
3826 | * | |
3827 | * Returns: | |
3828 | * A pointer to the newly created property on success, NULL on failure. | |
3829 | */ | |
98f75de4 RC |
3830 | struct drm_property *drm_property_create_object(struct drm_device *dev, |
3831 | int flags, const char *name, uint32_t type) | |
3832 | { | |
3833 | struct drm_property *property; | |
3834 | ||
3835 | flags |= DRM_MODE_PROP_OBJECT; | |
3836 | ||
960cd9d4 DV |
3837 | if (WARN_ON(!(flags & DRM_MODE_PROP_ATOMIC))) |
3838 | return NULL; | |
3839 | ||
98f75de4 RC |
3840 | property = drm_property_create(dev, flags, name, 1); |
3841 | if (!property) | |
3842 | return NULL; | |
3843 | ||
3844 | property->values[0] = type; | |
3845 | ||
3846 | return property; | |
3847 | } | |
3848 | EXPORT_SYMBOL(drm_property_create_object); | |
3849 | ||
960cd9d4 DV |
3850 | /** |
3851 | * drm_property_create_bool - create a new boolean property type | |
3852 | * @dev: drm device | |
3853 | * @flags: flags specifying the property type | |
3854 | * @name: name of the property | |
3855 | * | |
3856 | * This creates a new generic drm property which can then be attached to a drm | |
3857 | * object with drm_object_attach_property. The returned property object must be | |
3858 | * freed with drm_property_destroy. | |
3859 | * | |
3860 | * This is implemented as a ranged property with only {0, 1} as valid values. | |
3861 | * | |
3862 | * Returns: | |
3863 | * A pointer to the newly created property on success, NULL on failure. | |
3864 | */ | |
3865 | struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags, | |
3866 | const char *name) | |
3867 | { | |
3868 | return drm_property_create_range(dev, flags, name, 0, 1); | |
3869 | } | |
3870 | EXPORT_SYMBOL(drm_property_create_bool); | |
3871 | ||
c8e32cc1 DV |
3872 | /** |
3873 | * drm_property_add_enum - add a possible value to an enumeration property | |
3874 | * @property: enumeration property to change | |
3875 | * @index: index of the new enumeration | |
3876 | * @value: value of the new enumeration | |
3877 | * @name: symbolic name of the new enumeration | |
3878 | * | |
3879 | * This functions adds enumerations to a property. | |
3880 | * | |
3881 | * It's use is deprecated, drivers should use one of the more specific helpers | |
3882 | * to directly create the property with all enumerations already attached. | |
3883 | * | |
3884 | * Returns: | |
3885 | * Zero on success, error code on failure. | |
3886 | */ | |
f453ba04 DA |
3887 | int drm_property_add_enum(struct drm_property *property, int index, |
3888 | uint64_t value, const char *name) | |
3889 | { | |
3890 | struct drm_property_enum *prop_enum; | |
3891 | ||
5ea22f24 RC |
3892 | if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3893 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) | |
49e27545 RC |
3894 | return -EINVAL; |
3895 | ||
3896 | /* | |
3897 | * Bitmask enum properties have the additional constraint of values | |
3898 | * from 0 to 63 | |
3899 | */ | |
5ea22f24 RC |
3900 | if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && |
3901 | (value > 63)) | |
f453ba04 DA |
3902 | return -EINVAL; |
3903 | ||
3758b341 DV |
3904 | if (!list_empty(&property->enum_list)) { |
3905 | list_for_each_entry(prop_enum, &property->enum_list, head) { | |
f453ba04 DA |
3906 | if (prop_enum->value == value) { |
3907 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3908 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3909 | return 0; | |
3910 | } | |
3911 | } | |
3912 | } | |
3913 | ||
3914 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); | |
3915 | if (!prop_enum) | |
3916 | return -ENOMEM; | |
3917 | ||
3918 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3919 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3920 | prop_enum->value = value; | |
3921 | ||
3922 | property->values[index] = value; | |
3758b341 | 3923 | list_add_tail(&prop_enum->head, &property->enum_list); |
f453ba04 DA |
3924 | return 0; |
3925 | } | |
3926 | EXPORT_SYMBOL(drm_property_add_enum); | |
3927 | ||
c8e32cc1 DV |
3928 | /** |
3929 | * drm_property_destroy - destroy a drm property | |
3930 | * @dev: drm device | |
3931 | * @property: property to destry | |
3932 | * | |
3933 | * This function frees a property including any attached resources like | |
3934 | * enumeration values. | |
3935 | */ | |
f453ba04 DA |
3936 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) |
3937 | { | |
3938 | struct drm_property_enum *prop_enum, *pt; | |
3939 | ||
3758b341 | 3940 | list_for_each_entry_safe(prop_enum, pt, &property->enum_list, head) { |
f453ba04 DA |
3941 | list_del(&prop_enum->head); |
3942 | kfree(prop_enum); | |
3943 | } | |
3944 | ||
3945 | if (property->num_values) | |
3946 | kfree(property->values); | |
3947 | drm_mode_object_put(dev, &property->base); | |
3948 | list_del(&property->head); | |
3949 | kfree(property); | |
3950 | } | |
3951 | EXPORT_SYMBOL(drm_property_destroy); | |
3952 | ||
c8e32cc1 DV |
3953 | /** |
3954 | * drm_object_attach_property - attach a property to a modeset object | |
3955 | * @obj: drm modeset object | |
3956 | * @property: property to attach | |
3957 | * @init_val: initial value of the property | |
3958 | * | |
3959 | * This attaches the given property to the modeset object with the given initial | |
3960 | * value. Currently this function cannot fail since the properties are stored in | |
3961 | * a statically sized array. | |
3962 | */ | |
c543188a PZ |
3963 | void drm_object_attach_property(struct drm_mode_object *obj, |
3964 | struct drm_property *property, | |
3965 | uint64_t init_val) | |
3966 | { | |
7f88a9be | 3967 | int count = obj->properties->count; |
c543188a | 3968 | |
7f88a9be PZ |
3969 | if (count == DRM_OBJECT_MAX_PROPERTY) { |
3970 | WARN(1, "Failed to attach object property (type: 0x%x). Please " | |
3971 | "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " | |
3972 | "you see this message on the same object type.\n", | |
3973 | obj->type); | |
3974 | return; | |
c543188a PZ |
3975 | } |
3976 | ||
b17cd757 | 3977 | obj->properties->properties[count] = property; |
7f88a9be PZ |
3978 | obj->properties->values[count] = init_val; |
3979 | obj->properties->count++; | |
88a48e29 RC |
3980 | if (property->flags & DRM_MODE_PROP_ATOMIC) |
3981 | obj->properties->atomic_count++; | |
c543188a PZ |
3982 | } |
3983 | EXPORT_SYMBOL(drm_object_attach_property); | |
3984 | ||
c8e32cc1 DV |
3985 | /** |
3986 | * drm_object_property_set_value - set the value of a property | |
3987 | * @obj: drm mode object to set property value for | |
3988 | * @property: property to set | |
3989 | * @val: value the property should be set to | |
3990 | * | |
3991 | * This functions sets a given property on a given object. This function only | |
3992 | * changes the software state of the property, it does not call into the | |
3993 | * driver's ->set_property callback. | |
3994 | * | |
3995 | * Returns: | |
3996 | * Zero on success, error code on failure. | |
3997 | */ | |
c543188a PZ |
3998 | int drm_object_property_set_value(struct drm_mode_object *obj, |
3999 | struct drm_property *property, uint64_t val) | |
4000 | { | |
4001 | int i; | |
4002 | ||
7f88a9be | 4003 | for (i = 0; i < obj->properties->count; i++) { |
b17cd757 | 4004 | if (obj->properties->properties[i] == property) { |
c543188a PZ |
4005 | obj->properties->values[i] = val; |
4006 | return 0; | |
4007 | } | |
4008 | } | |
4009 | ||
4010 | return -EINVAL; | |
4011 | } | |
4012 | EXPORT_SYMBOL(drm_object_property_set_value); | |
4013 | ||
c8e32cc1 DV |
4014 | /** |
4015 | * drm_object_property_get_value - retrieve the value of a property | |
4016 | * @obj: drm mode object to get property value from | |
4017 | * @property: property to retrieve | |
4018 | * @val: storage for the property value | |
4019 | * | |
4020 | * This function retrieves the softare state of the given property for the given | |
4021 | * property. Since there is no driver callback to retrieve the current property | |
4022 | * value this might be out of sync with the hardware, depending upon the driver | |
4023 | * and property. | |
4024 | * | |
4025 | * Returns: | |
4026 | * Zero on success, error code on failure. | |
4027 | */ | |
c543188a PZ |
4028 | int drm_object_property_get_value(struct drm_mode_object *obj, |
4029 | struct drm_property *property, uint64_t *val) | |
4030 | { | |
4031 | int i; | |
4032 | ||
88a48e29 RC |
4033 | /* read-only properties bypass atomic mechanism and still store |
4034 | * their value in obj->properties->values[].. mostly to avoid | |
4035 | * having to deal w/ EDID and similar props in atomic paths: | |
4036 | */ | |
4037 | if (drm_core_check_feature(property->dev, DRIVER_ATOMIC) && | |
4038 | !(property->flags & DRM_MODE_PROP_IMMUTABLE)) | |
4039 | return drm_atomic_get_property(obj, property, val); | |
4040 | ||
7f88a9be | 4041 | for (i = 0; i < obj->properties->count; i++) { |
b17cd757 | 4042 | if (obj->properties->properties[i] == property) { |
c543188a PZ |
4043 | *val = obj->properties->values[i]; |
4044 | return 0; | |
4045 | } | |
4046 | } | |
4047 | ||
4048 | return -EINVAL; | |
4049 | } | |
4050 | EXPORT_SYMBOL(drm_object_property_get_value); | |
4051 | ||
c8e32cc1 | 4052 | /** |
1a498633 | 4053 | * drm_mode_getproperty_ioctl - get the property metadata |
c8e32cc1 DV |
4054 | * @dev: DRM device |
4055 | * @data: ioctl data | |
4056 | * @file_priv: DRM file info | |
4057 | * | |
1a498633 DV |
4058 | * This function retrieves the metadata for a given property, like the different |
4059 | * possible values for an enum property or the limits for a range property. | |
4060 | * | |
4061 | * Blob properties are special | |
c8e32cc1 DV |
4062 | * |
4063 | * Called by the user via ioctl. | |
4064 | * | |
4065 | * Returns: | |
1a498633 | 4066 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4067 | */ |
f453ba04 DA |
4068 | int drm_mode_getproperty_ioctl(struct drm_device *dev, |
4069 | void *data, struct drm_file *file_priv) | |
4070 | { | |
f453ba04 DA |
4071 | struct drm_mode_get_property *out_resp = data; |
4072 | struct drm_property *property; | |
4073 | int enum_count = 0; | |
f453ba04 DA |
4074 | int value_count = 0; |
4075 | int ret = 0, i; | |
4076 | int copied; | |
4077 | struct drm_property_enum *prop_enum; | |
4078 | struct drm_mode_property_enum __user *enum_ptr; | |
f453ba04 | 4079 | uint64_t __user *values_ptr; |
f453ba04 | 4080 | |
fb3b06c8 DA |
4081 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4082 | return -EINVAL; | |
4083 | ||
84849903 | 4084 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4085 | property = drm_property_find(dev, out_resp->prop_id); |
4086 | if (!property) { | |
f27657f2 | 4087 | ret = -ENOENT; |
f453ba04 DA |
4088 | goto done; |
4089 | } | |
f453ba04 | 4090 | |
5ea22f24 RC |
4091 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
4092 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
3758b341 | 4093 | list_for_each_entry(prop_enum, &property->enum_list, head) |
f453ba04 | 4094 | enum_count++; |
f453ba04 DA |
4095 | } |
4096 | ||
4097 | value_count = property->num_values; | |
4098 | ||
4099 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); | |
4100 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; | |
4101 | out_resp->flags = property->flags; | |
4102 | ||
4103 | if ((out_resp->count_values >= value_count) && value_count) { | |
81f6c7f8 | 4104 | values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; |
f453ba04 DA |
4105 | for (i = 0; i < value_count; i++) { |
4106 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { | |
4107 | ret = -EFAULT; | |
4108 | goto done; | |
4109 | } | |
4110 | } | |
4111 | } | |
4112 | out_resp->count_values = value_count; | |
4113 | ||
5ea22f24 RC |
4114 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
4115 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
f453ba04 DA |
4116 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
4117 | copied = 0; | |
81f6c7f8 | 4118 | enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; |
3758b341 | 4119 | list_for_each_entry(prop_enum, &property->enum_list, head) { |
f453ba04 DA |
4120 | |
4121 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { | |
4122 | ret = -EFAULT; | |
4123 | goto done; | |
4124 | } | |
4125 | ||
4126 | if (copy_to_user(&enum_ptr[copied].name, | |
4127 | &prop_enum->name, DRM_PROP_NAME_LEN)) { | |
4128 | ret = -EFAULT; | |
4129 | goto done; | |
4130 | } | |
4131 | copied++; | |
4132 | } | |
4133 | } | |
4134 | out_resp->count_enum_blobs = enum_count; | |
4135 | } | |
4136 | ||
3758b341 DV |
4137 | /* |
4138 | * NOTE: The idea seems to have been to use this to read all the blob | |
4139 | * property values. But nothing ever added them to the corresponding | |
4140 | * list, userspace always used the special-purpose get_blob ioctl to | |
4141 | * read the value for a blob property. It also doesn't make a lot of | |
4142 | * sense to return values here when everything else is just metadata for | |
4143 | * the property itself. | |
4144 | */ | |
4145 | if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) | |
4146 | out_resp->count_enum_blobs = 0; | |
f453ba04 | 4147 | done: |
84849903 | 4148 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4149 | return ret; |
4150 | } | |
4151 | ||
ecbbe59b TR |
4152 | static struct drm_property_blob * |
4153 | drm_property_create_blob(struct drm_device *dev, size_t length, | |
12e6cecd | 4154 | const void *data) |
f453ba04 DA |
4155 | { |
4156 | struct drm_property_blob *blob; | |
6bfc56aa | 4157 | int ret; |
f453ba04 DA |
4158 | |
4159 | if (!length || !data) | |
4160 | return NULL; | |
4161 | ||
4162 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); | |
4163 | if (!blob) | |
4164 | return NULL; | |
4165 | ||
6bfc56aa VS |
4166 | ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); |
4167 | if (ret) { | |
4168 | kfree(blob); | |
4169 | return NULL; | |
4170 | } | |
4171 | ||
f453ba04 DA |
4172 | blob->length = length; |
4173 | ||
4174 | memcpy(blob->data, data, length); | |
4175 | ||
f453ba04 DA |
4176 | list_add_tail(&blob->head, &dev->mode_config.property_blob_list); |
4177 | return blob; | |
4178 | } | |
4179 | ||
4180 | static void drm_property_destroy_blob(struct drm_device *dev, | |
4181 | struct drm_property_blob *blob) | |
4182 | { | |
4183 | drm_mode_object_put(dev, &blob->base); | |
4184 | list_del(&blob->head); | |
4185 | kfree(blob); | |
4186 | } | |
4187 | ||
c8e32cc1 DV |
4188 | /** |
4189 | * drm_mode_getblob_ioctl - get the contents of a blob property value | |
4190 | * @dev: DRM device | |
4191 | * @data: ioctl data | |
4192 | * @file_priv: DRM file info | |
4193 | * | |
4194 | * This function retrieves the contents of a blob property. The value stored in | |
4195 | * an object's blob property is just a normal modeset object id. | |
4196 | * | |
4197 | * Called by the user via ioctl. | |
4198 | * | |
4199 | * Returns: | |
1a498633 | 4200 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4201 | */ |
f453ba04 DA |
4202 | int drm_mode_getblob_ioctl(struct drm_device *dev, |
4203 | void *data, struct drm_file *file_priv) | |
4204 | { | |
f453ba04 DA |
4205 | struct drm_mode_get_blob *out_resp = data; |
4206 | struct drm_property_blob *blob; | |
4207 | int ret = 0; | |
81f6c7f8 | 4208 | void __user *blob_ptr; |
f453ba04 | 4209 | |
fb3b06c8 DA |
4210 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4211 | return -EINVAL; | |
4212 | ||
84849903 | 4213 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4214 | blob = drm_property_blob_find(dev, out_resp->blob_id); |
4215 | if (!blob) { | |
f27657f2 | 4216 | ret = -ENOENT; |
f453ba04 DA |
4217 | goto done; |
4218 | } | |
f453ba04 DA |
4219 | |
4220 | if (out_resp->length == blob->length) { | |
81f6c7f8 | 4221 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
4dfd909f | 4222 | if (copy_to_user(blob_ptr, blob->data, blob->length)) { |
f453ba04 DA |
4223 | ret = -EFAULT; |
4224 | goto done; | |
4225 | } | |
4226 | } | |
4227 | out_resp->length = blob->length; | |
4228 | ||
4229 | done: | |
84849903 | 4230 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4231 | return ret; |
4232 | } | |
4233 | ||
cc7096fb DA |
4234 | /** |
4235 | * drm_mode_connector_set_path_property - set tile property on connector | |
4236 | * @connector: connector to set property on. | |
4237 | * @path: path to use for property. | |
4238 | * | |
4239 | * This creates a property to expose to userspace to specify a | |
4240 | * connector path. This is mainly used for DisplayPort MST where | |
4241 | * connectors have a topology and we want to allow userspace to give | |
4242 | * them more meaningful names. | |
4243 | * | |
4244 | * Returns: | |
1a498633 | 4245 | * Zero on success, negative errno on failure. |
cc7096fb | 4246 | */ |
43aba7eb | 4247 | int drm_mode_connector_set_path_property(struct drm_connector *connector, |
12e6cecd | 4248 | const char *path) |
43aba7eb DA |
4249 | { |
4250 | struct drm_device *dev = connector->dev; | |
ecbbe59b TR |
4251 | size_t size = strlen(path) + 1; |
4252 | int ret; | |
43aba7eb DA |
4253 | |
4254 | connector->path_blob_ptr = drm_property_create_blob(connector->dev, | |
4255 | size, path); | |
4256 | if (!connector->path_blob_ptr) | |
4257 | return -EINVAL; | |
4258 | ||
4259 | ret = drm_object_property_set_value(&connector->base, | |
4260 | dev->mode_config.path_property, | |
4261 | connector->path_blob_ptr->base.id); | |
4262 | return ret; | |
4263 | } | |
4264 | EXPORT_SYMBOL(drm_mode_connector_set_path_property); | |
4265 | ||
6f134d7b DA |
4266 | /** |
4267 | * drm_mode_connector_set_tile_property - set tile property on connector | |
4268 | * @connector: connector to set property on. | |
4269 | * | |
4270 | * This looks up the tile information for a connector, and creates a | |
4271 | * property for userspace to parse if it exists. The property is of | |
4272 | * the form of 8 integers using ':' as a separator. | |
4273 | * | |
4274 | * Returns: | |
4275 | * Zero on success, errno on failure. | |
4276 | */ | |
4277 | int drm_mode_connector_set_tile_property(struct drm_connector *connector) | |
4278 | { | |
4279 | struct drm_device *dev = connector->dev; | |
4280 | int ret, size; | |
4281 | char tile[256]; | |
4282 | ||
4283 | if (connector->tile_blob_ptr) | |
4284 | drm_property_destroy_blob(dev, connector->tile_blob_ptr); | |
4285 | ||
4286 | if (!connector->has_tile) { | |
4287 | connector->tile_blob_ptr = NULL; | |
4288 | ret = drm_object_property_set_value(&connector->base, | |
4289 | dev->mode_config.tile_property, 0); | |
4290 | return ret; | |
4291 | } | |
4292 | ||
4293 | snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d", | |
4294 | connector->tile_group->id, connector->tile_is_single_monitor, | |
4295 | connector->num_h_tile, connector->num_v_tile, | |
4296 | connector->tile_h_loc, connector->tile_v_loc, | |
4297 | connector->tile_h_size, connector->tile_v_size); | |
4298 | size = strlen(tile) + 1; | |
4299 | ||
4300 | connector->tile_blob_ptr = drm_property_create_blob(connector->dev, | |
4301 | size, tile); | |
4302 | if (!connector->tile_blob_ptr) | |
4303 | return -EINVAL; | |
4304 | ||
4305 | ret = drm_object_property_set_value(&connector->base, | |
4306 | dev->mode_config.tile_property, | |
4307 | connector->tile_blob_ptr->base.id); | |
4308 | return ret; | |
4309 | } | |
4310 | EXPORT_SYMBOL(drm_mode_connector_set_tile_property); | |
4311 | ||
c8e32cc1 DV |
4312 | /** |
4313 | * drm_mode_connector_update_edid_property - update the edid property of a connector | |
4314 | * @connector: drm connector | |
4315 | * @edid: new value of the edid property | |
4316 | * | |
4317 | * This function creates a new blob modeset object and assigns its id to the | |
4318 | * connector's edid property. | |
4319 | * | |
4320 | * Returns: | |
1a498633 | 4321 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4322 | */ |
f453ba04 | 4323 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
12e6cecd | 4324 | const struct edid *edid) |
f453ba04 DA |
4325 | { |
4326 | struct drm_device *dev = connector->dev; | |
ecbbe59b TR |
4327 | size_t size; |
4328 | int ret; | |
f453ba04 | 4329 | |
4cf2b281 TW |
4330 | /* ignore requests to set edid when overridden */ |
4331 | if (connector->override_edid) | |
4332 | return 0; | |
4333 | ||
f453ba04 DA |
4334 | if (connector->edid_blob_ptr) |
4335 | drm_property_destroy_blob(dev, connector->edid_blob_ptr); | |
4336 | ||
4337 | /* Delete edid, when there is none. */ | |
4338 | if (!edid) { | |
4339 | connector->edid_blob_ptr = NULL; | |
58495563 | 4340 | ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0); |
f453ba04 DA |
4341 | return ret; |
4342 | } | |
4343 | ||
7466f4cc AJ |
4344 | size = EDID_LENGTH * (1 + edid->extensions); |
4345 | connector->edid_blob_ptr = drm_property_create_blob(connector->dev, | |
4346 | size, edid); | |
e655d122 SK |
4347 | if (!connector->edid_blob_ptr) |
4348 | return -EINVAL; | |
f453ba04 | 4349 | |
58495563 | 4350 | ret = drm_object_property_set_value(&connector->base, |
f453ba04 DA |
4351 | dev->mode_config.edid_property, |
4352 | connector->edid_blob_ptr->base.id); | |
4353 | ||
4354 | return ret; | |
4355 | } | |
4356 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); | |
4357 | ||
3843e71f RC |
4358 | /* Some properties could refer to dynamic refcnt'd objects, or things that |
4359 | * need special locking to handle lifetime issues (ie. to ensure the prop | |
4360 | * value doesn't become invalid part way through the property update due to | |
4361 | * race). The value returned by reference via 'obj' should be passed back | |
4362 | * to drm_property_change_valid_put() after the property is set (and the | |
4363 | * object to which the property is attached has a chance to take it's own | |
4364 | * reference). | |
4365 | */ | |
d34f20d6 | 4366 | bool drm_property_change_valid_get(struct drm_property *property, |
3843e71f | 4367 | uint64_t value, struct drm_mode_object **ref) |
26a34815 | 4368 | { |
2ca651d1 TR |
4369 | int i; |
4370 | ||
26a34815 PZ |
4371 | if (property->flags & DRM_MODE_PROP_IMMUTABLE) |
4372 | return false; | |
5ea22f24 | 4373 | |
3843e71f RC |
4374 | *ref = NULL; |
4375 | ||
5ea22f24 | 4376 | if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) { |
26a34815 PZ |
4377 | if (value < property->values[0] || value > property->values[1]) |
4378 | return false; | |
4379 | return true; | |
ebc44cf3 RC |
4380 | } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) { |
4381 | int64_t svalue = U642I64(value); | |
4dfd909f | 4382 | |
ebc44cf3 RC |
4383 | if (svalue < U642I64(property->values[0]) || |
4384 | svalue > U642I64(property->values[1])) | |
4385 | return false; | |
4386 | return true; | |
5ea22f24 | 4387 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
592c20ee | 4388 | uint64_t valid_mask = 0; |
4dfd909f | 4389 | |
49e27545 RC |
4390 | for (i = 0; i < property->num_values; i++) |
4391 | valid_mask |= (1ULL << property->values[i]); | |
4392 | return !(value & ~valid_mask); | |
5ea22f24 | 4393 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
c4a56750 VS |
4394 | /* Only the driver knows */ |
4395 | return true; | |
98f75de4 | 4396 | } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { |
98f75de4 RC |
4397 | /* a zero value for an object property translates to null: */ |
4398 | if (value == 0) | |
4399 | return true; | |
3843e71f RC |
4400 | |
4401 | /* handle refcnt'd objects specially: */ | |
4402 | if (property->values[0] == DRM_MODE_OBJECT_FB) { | |
4403 | struct drm_framebuffer *fb; | |
4404 | fb = drm_framebuffer_lookup(property->dev, value); | |
4405 | if (fb) { | |
4406 | *ref = &fb->base; | |
4407 | return true; | |
4408 | } else { | |
4409 | return false; | |
4410 | } | |
4411 | } else { | |
4412 | return _object_find(property->dev, value, property->values[0]) != NULL; | |
4413 | } | |
26a34815 | 4414 | } |
2ca651d1 TR |
4415 | |
4416 | for (i = 0; i < property->num_values; i++) | |
4417 | if (property->values[i] == value) | |
4418 | return true; | |
4419 | return false; | |
26a34815 PZ |
4420 | } |
4421 | ||
d34f20d6 | 4422 | void drm_property_change_valid_put(struct drm_property *property, |
3843e71f RC |
4423 | struct drm_mode_object *ref) |
4424 | { | |
4425 | if (!ref) | |
4426 | return; | |
4427 | ||
4428 | if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { | |
4429 | if (property->values[0] == DRM_MODE_OBJECT_FB) | |
4430 | drm_framebuffer_unreference(obj_to_fb(ref)); | |
4431 | } | |
4432 | } | |
4433 | ||
c8e32cc1 DV |
4434 | /** |
4435 | * drm_mode_connector_property_set_ioctl - set the current value of a connector property | |
4436 | * @dev: DRM device | |
4437 | * @data: ioctl data | |
4438 | * @file_priv: DRM file info | |
4439 | * | |
4440 | * This function sets the current value for a connectors's property. It also | |
4441 | * calls into a driver's ->set_property callback to update the hardware state | |
4442 | * | |
4443 | * Called by the user via ioctl. | |
4444 | * | |
4445 | * Returns: | |
1a498633 | 4446 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4447 | */ |
f453ba04 DA |
4448 | int drm_mode_connector_property_set_ioctl(struct drm_device *dev, |
4449 | void *data, struct drm_file *file_priv) | |
4450 | { | |
0057d8dd PZ |
4451 | struct drm_mode_connector_set_property *conn_set_prop = data; |
4452 | struct drm_mode_obj_set_property obj_set_prop = { | |
4453 | .value = conn_set_prop->value, | |
4454 | .prop_id = conn_set_prop->prop_id, | |
4455 | .obj_id = conn_set_prop->connector_id, | |
4456 | .obj_type = DRM_MODE_OBJECT_CONNECTOR | |
4457 | }; | |
fb3b06c8 | 4458 | |
0057d8dd PZ |
4459 | /* It does all the locking and checking we need */ |
4460 | return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); | |
f453ba04 DA |
4461 | } |
4462 | ||
c543188a PZ |
4463 | static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, |
4464 | struct drm_property *property, | |
4465 | uint64_t value) | |
4466 | { | |
4467 | int ret = -EINVAL; | |
4468 | struct drm_connector *connector = obj_to_connector(obj); | |
4469 | ||
4470 | /* Do DPMS ourselves */ | |
4471 | if (property == connector->dev->mode_config.dpms_property) { | |
4472 | if (connector->funcs->dpms) | |
4473 | (*connector->funcs->dpms)(connector, (int)value); | |
4474 | ret = 0; | |
4475 | } else if (connector->funcs->set_property) | |
4476 | ret = connector->funcs->set_property(connector, property, value); | |
4477 | ||
4478 | /* store the property value if successful */ | |
4479 | if (!ret) | |
58495563 | 4480 | drm_object_property_set_value(&connector->base, property, value); |
c543188a PZ |
4481 | return ret; |
4482 | } | |
4483 | ||
bffd9de0 PZ |
4484 | static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
4485 | struct drm_property *property, | |
4486 | uint64_t value) | |
4487 | { | |
4488 | int ret = -EINVAL; | |
4489 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
4490 | ||
4491 | if (crtc->funcs->set_property) | |
4492 | ret = crtc->funcs->set_property(crtc, property, value); | |
4493 | if (!ret) | |
4494 | drm_object_property_set_value(obj, property, value); | |
4495 | ||
4496 | return ret; | |
4497 | } | |
4498 | ||
3a5f87c2 TW |
4499 | /** |
4500 | * drm_mode_plane_set_obj_prop - set the value of a property | |
4501 | * @plane: drm plane object to set property value for | |
4502 | * @property: property to set | |
4503 | * @value: value the property should be set to | |
4504 | * | |
4505 | * This functions sets a given property on a given plane object. This function | |
4506 | * calls the driver's ->set_property callback and changes the software state of | |
4507 | * the property if the callback succeeds. | |
4508 | * | |
4509 | * Returns: | |
4510 | * Zero on success, error code on failure. | |
4511 | */ | |
4512 | int drm_mode_plane_set_obj_prop(struct drm_plane *plane, | |
4513 | struct drm_property *property, | |
4514 | uint64_t value) | |
4d93914a RC |
4515 | { |
4516 | int ret = -EINVAL; | |
3a5f87c2 | 4517 | struct drm_mode_object *obj = &plane->base; |
4d93914a RC |
4518 | |
4519 | if (plane->funcs->set_property) | |
4520 | ret = plane->funcs->set_property(plane, property, value); | |
4521 | if (!ret) | |
4522 | drm_object_property_set_value(obj, property, value); | |
4523 | ||
4524 | return ret; | |
4525 | } | |
3a5f87c2 | 4526 | EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); |
4d93914a | 4527 | |
c8e32cc1 | 4528 | /** |
1a498633 | 4529 | * drm_mode_obj_get_properties_ioctl - get the current value of a object's property |
c8e32cc1 DV |
4530 | * @dev: DRM device |
4531 | * @data: ioctl data | |
4532 | * @file_priv: DRM file info | |
4533 | * | |
4534 | * This function retrieves the current value for an object's property. Compared | |
4535 | * to the connector specific ioctl this one is extended to also work on crtc and | |
4536 | * plane objects. | |
4537 | * | |
4538 | * Called by the user via ioctl. | |
4539 | * | |
4540 | * Returns: | |
1a498633 | 4541 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4542 | */ |
c543188a PZ |
4543 | int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
4544 | struct drm_file *file_priv) | |
4545 | { | |
4546 | struct drm_mode_obj_get_properties *arg = data; | |
4547 | struct drm_mode_object *obj; | |
4548 | int ret = 0; | |
c543188a PZ |
4549 | |
4550 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4551 | return -EINVAL; | |
4552 | ||
84849903 | 4553 | drm_modeset_lock_all(dev); |
c543188a PZ |
4554 | |
4555 | obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
4556 | if (!obj) { | |
f27657f2 | 4557 | ret = -ENOENT; |
c543188a PZ |
4558 | goto out; |
4559 | } | |
4560 | if (!obj->properties) { | |
4561 | ret = -EINVAL; | |
4562 | goto out; | |
4563 | } | |
4564 | ||
88a48e29 | 4565 | ret = get_properties(obj, file_priv->atomic, |
95cbf110 RC |
4566 | (uint32_t __user *)(unsigned long)(arg->props_ptr), |
4567 | (uint64_t __user *)(unsigned long)(arg->prop_values_ptr), | |
4568 | &arg->count_props); | |
c543188a | 4569 | |
c543188a | 4570 | out: |
84849903 | 4571 | drm_modeset_unlock_all(dev); |
c543188a PZ |
4572 | return ret; |
4573 | } | |
4574 | ||
c8e32cc1 DV |
4575 | /** |
4576 | * drm_mode_obj_set_property_ioctl - set the current value of an object's property | |
4577 | * @dev: DRM device | |
4578 | * @data: ioctl data | |
4579 | * @file_priv: DRM file info | |
4580 | * | |
4581 | * This function sets the current value for an object's property. It also calls | |
4582 | * into a driver's ->set_property callback to update the hardware state. | |
4583 | * Compared to the connector specific ioctl this one is extended to also work on | |
4584 | * crtc and plane objects. | |
4585 | * | |
4586 | * Called by the user via ioctl. | |
4587 | * | |
4588 | * Returns: | |
1a498633 | 4589 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4590 | */ |
c543188a PZ |
4591 | int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, |
4592 | struct drm_file *file_priv) | |
4593 | { | |
4594 | struct drm_mode_obj_set_property *arg = data; | |
4595 | struct drm_mode_object *arg_obj; | |
4596 | struct drm_mode_object *prop_obj; | |
4597 | struct drm_property *property; | |
3843e71f RC |
4598 | int i, ret = -EINVAL; |
4599 | struct drm_mode_object *ref; | |
c543188a PZ |
4600 | |
4601 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4602 | return -EINVAL; | |
4603 | ||
84849903 | 4604 | drm_modeset_lock_all(dev); |
c543188a PZ |
4605 | |
4606 | arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
f27657f2 VS |
4607 | if (!arg_obj) { |
4608 | ret = -ENOENT; | |
c543188a | 4609 | goto out; |
f27657f2 | 4610 | } |
c543188a PZ |
4611 | if (!arg_obj->properties) |
4612 | goto out; | |
4613 | ||
7f88a9be | 4614 | for (i = 0; i < arg_obj->properties->count; i++) |
b17cd757 | 4615 | if (arg_obj->properties->properties[i]->base.id == arg->prop_id) |
c543188a PZ |
4616 | break; |
4617 | ||
7f88a9be | 4618 | if (i == arg_obj->properties->count) |
c543188a PZ |
4619 | goto out; |
4620 | ||
4621 | prop_obj = drm_mode_object_find(dev, arg->prop_id, | |
4622 | DRM_MODE_OBJECT_PROPERTY); | |
f27657f2 VS |
4623 | if (!prop_obj) { |
4624 | ret = -ENOENT; | |
c543188a | 4625 | goto out; |
f27657f2 | 4626 | } |
c543188a PZ |
4627 | property = obj_to_property(prop_obj); |
4628 | ||
3843e71f | 4629 | if (!drm_property_change_valid_get(property, arg->value, &ref)) |
c543188a PZ |
4630 | goto out; |
4631 | ||
4632 | switch (arg_obj->type) { | |
4633 | case DRM_MODE_OBJECT_CONNECTOR: | |
4634 | ret = drm_mode_connector_set_obj_prop(arg_obj, property, | |
4635 | arg->value); | |
4636 | break; | |
bffd9de0 PZ |
4637 | case DRM_MODE_OBJECT_CRTC: |
4638 | ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); | |
4639 | break; | |
4d93914a | 4640 | case DRM_MODE_OBJECT_PLANE: |
3a5f87c2 TW |
4641 | ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj), |
4642 | property, arg->value); | |
4d93914a | 4643 | break; |
c543188a PZ |
4644 | } |
4645 | ||
3843e71f RC |
4646 | drm_property_change_valid_put(property, ref); |
4647 | ||
c543188a | 4648 | out: |
84849903 | 4649 | drm_modeset_unlock_all(dev); |
c543188a PZ |
4650 | return ret; |
4651 | } | |
4652 | ||
c8e32cc1 DV |
4653 | /** |
4654 | * drm_mode_connector_attach_encoder - attach a connector to an encoder | |
4655 | * @connector: connector to attach | |
4656 | * @encoder: encoder to attach @connector to | |
4657 | * | |
4658 | * This function links up a connector to an encoder. Note that the routing | |
4659 | * restrictions between encoders and crtcs are exposed to userspace through the | |
4660 | * possible_clones and possible_crtcs bitmasks. | |
4661 | * | |
4662 | * Returns: | |
1a498633 | 4663 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4664 | */ |
f453ba04 DA |
4665 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
4666 | struct drm_encoder *encoder) | |
4667 | { | |
4668 | int i; | |
4669 | ||
4670 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
4671 | if (connector->encoder_ids[i] == 0) { | |
4672 | connector->encoder_ids[i] = encoder->base.id; | |
4673 | return 0; | |
4674 | } | |
4675 | } | |
4676 | return -ENOMEM; | |
4677 | } | |
4678 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); | |
4679 | ||
c8e32cc1 DV |
4680 | /** |
4681 | * drm_mode_crtc_set_gamma_size - set the gamma table size | |
4682 | * @crtc: CRTC to set the gamma table size for | |
4683 | * @gamma_size: size of the gamma table | |
4684 | * | |
4685 | * Drivers which support gamma tables should set this to the supported gamma | |
4686 | * table size when initializing the CRTC. Currently the drm core only supports a | |
4687 | * fixed gamma table size. | |
4688 | * | |
4689 | * Returns: | |
1a498633 | 4690 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4691 | */ |
4cae5b84 | 4692 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
c8e32cc1 | 4693 | int gamma_size) |
f453ba04 DA |
4694 | { |
4695 | crtc->gamma_size = gamma_size; | |
4696 | ||
bd3f0ff9 TR |
4697 | crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3, |
4698 | GFP_KERNEL); | |
f453ba04 DA |
4699 | if (!crtc->gamma_store) { |
4700 | crtc->gamma_size = 0; | |
4cae5b84 | 4701 | return -ENOMEM; |
f453ba04 DA |
4702 | } |
4703 | ||
4cae5b84 | 4704 | return 0; |
f453ba04 DA |
4705 | } |
4706 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); | |
4707 | ||
c8e32cc1 DV |
4708 | /** |
4709 | * drm_mode_gamma_set_ioctl - set the gamma table | |
4710 | * @dev: DRM device | |
4711 | * @data: ioctl data | |
4712 | * @file_priv: DRM file info | |
4713 | * | |
4714 | * Set the gamma table of a CRTC to the one passed in by the user. Userspace can | |
4715 | * inquire the required gamma table size through drm_mode_gamma_get_ioctl. | |
4716 | * | |
4717 | * Called by the user via ioctl. | |
4718 | * | |
4719 | * Returns: | |
1a498633 | 4720 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4721 | */ |
f453ba04 DA |
4722 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
4723 | void *data, struct drm_file *file_priv) | |
4724 | { | |
4725 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
4726 | struct drm_crtc *crtc; |
4727 | void *r_base, *g_base, *b_base; | |
4728 | int size; | |
4729 | int ret = 0; | |
4730 | ||
fb3b06c8 DA |
4731 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4732 | return -EINVAL; | |
4733 | ||
84849903 | 4734 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4735 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
4736 | if (!crtc) { | |
f27657f2 | 4737 | ret = -ENOENT; |
f453ba04 DA |
4738 | goto out; |
4739 | } | |
f453ba04 | 4740 | |
ebe0f244 LP |
4741 | if (crtc->funcs->gamma_set == NULL) { |
4742 | ret = -ENOSYS; | |
4743 | goto out; | |
4744 | } | |
4745 | ||
f453ba04 DA |
4746 | /* memcpy into gamma store */ |
4747 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
4748 | ret = -EINVAL; | |
4749 | goto out; | |
4750 | } | |
4751 | ||
4752 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
4753 | r_base = crtc->gamma_store; | |
4754 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { | |
4755 | ret = -EFAULT; | |
4756 | goto out; | |
4757 | } | |
4758 | ||
4759 | g_base = r_base + size; | |
4760 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { | |
4761 | ret = -EFAULT; | |
4762 | goto out; | |
4763 | } | |
4764 | ||
4765 | b_base = g_base + size; | |
4766 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { | |
4767 | ret = -EFAULT; | |
4768 | goto out; | |
4769 | } | |
4770 | ||
7203425a | 4771 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
f453ba04 DA |
4772 | |
4773 | out: | |
84849903 | 4774 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4775 | return ret; |
4776 | ||
4777 | } | |
4778 | ||
c8e32cc1 DV |
4779 | /** |
4780 | * drm_mode_gamma_get_ioctl - get the gamma table | |
4781 | * @dev: DRM device | |
4782 | * @data: ioctl data | |
4783 | * @file_priv: DRM file info | |
4784 | * | |
4785 | * Copy the current gamma table into the storage provided. This also provides | |
4786 | * the gamma table size the driver expects, which can be used to size the | |
4787 | * allocated storage. | |
4788 | * | |
4789 | * Called by the user via ioctl. | |
4790 | * | |
4791 | * Returns: | |
1a498633 | 4792 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4793 | */ |
f453ba04 DA |
4794 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
4795 | void *data, struct drm_file *file_priv) | |
4796 | { | |
4797 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
4798 | struct drm_crtc *crtc; |
4799 | void *r_base, *g_base, *b_base; | |
4800 | int size; | |
4801 | int ret = 0; | |
4802 | ||
fb3b06c8 DA |
4803 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4804 | return -EINVAL; | |
4805 | ||
84849903 | 4806 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4807 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
4808 | if (!crtc) { | |
f27657f2 | 4809 | ret = -ENOENT; |
f453ba04 DA |
4810 | goto out; |
4811 | } | |
f453ba04 DA |
4812 | |
4813 | /* memcpy into gamma store */ | |
4814 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
4815 | ret = -EINVAL; | |
4816 | goto out; | |
4817 | } | |
4818 | ||
4819 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
4820 | r_base = crtc->gamma_store; | |
4821 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { | |
4822 | ret = -EFAULT; | |
4823 | goto out; | |
4824 | } | |
4825 | ||
4826 | g_base = r_base + size; | |
4827 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { | |
4828 | ret = -EFAULT; | |
4829 | goto out; | |
4830 | } | |
4831 | ||
4832 | b_base = g_base + size; | |
4833 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { | |
4834 | ret = -EFAULT; | |
4835 | goto out; | |
4836 | } | |
4837 | out: | |
84849903 | 4838 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4839 | return ret; |
4840 | } | |
d91d8a3f | 4841 | |
c8e32cc1 DV |
4842 | /** |
4843 | * drm_mode_page_flip_ioctl - schedule an asynchronous fb update | |
4844 | * @dev: DRM device | |
4845 | * @data: ioctl data | |
4846 | * @file_priv: DRM file info | |
4847 | * | |
4848 | * This schedules an asynchronous update on a given CRTC, called page flip. | |
4849 | * Optionally a drm event is generated to signal the completion of the event. | |
4850 | * Generic drivers cannot assume that a pageflip with changed framebuffer | |
4851 | * properties (including driver specific metadata like tiling layout) will work, | |
4852 | * but some drivers support e.g. pixel format changes through the pageflip | |
4853 | * ioctl. | |
4854 | * | |
4855 | * Called by the user via ioctl. | |
4856 | * | |
4857 | * Returns: | |
1a498633 | 4858 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4859 | */ |
d91d8a3f KH |
4860 | int drm_mode_page_flip_ioctl(struct drm_device *dev, |
4861 | void *data, struct drm_file *file_priv) | |
4862 | { | |
4863 | struct drm_mode_crtc_page_flip *page_flip = data; | |
d91d8a3f | 4864 | struct drm_crtc *crtc; |
3d30a59b | 4865 | struct drm_framebuffer *fb = NULL; |
d91d8a3f KH |
4866 | struct drm_pending_vblank_event *e = NULL; |
4867 | unsigned long flags; | |
4868 | int ret = -EINVAL; | |
4869 | ||
4870 | if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || | |
4871 | page_flip->reserved != 0) | |
4872 | return -EINVAL; | |
4873 | ||
62f2104f KP |
4874 | if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) |
4875 | return -EINVAL; | |
4876 | ||
a2b34e22 RC |
4877 | crtc = drm_crtc_find(dev, page_flip->crtc_id); |
4878 | if (!crtc) | |
f27657f2 | 4879 | return -ENOENT; |
d91d8a3f | 4880 | |
4d02e2de | 4881 | drm_modeset_lock_crtc(crtc, crtc->primary); |
f4510a27 | 4882 | if (crtc->primary->fb == NULL) { |
90c1efdd CW |
4883 | /* The framebuffer is currently unbound, presumably |
4884 | * due to a hotplug event, that userspace has not | |
4885 | * yet discovered. | |
4886 | */ | |
4887 | ret = -EBUSY; | |
4888 | goto out; | |
4889 | } | |
4890 | ||
d91d8a3f KH |
4891 | if (crtc->funcs->page_flip == NULL) |
4892 | goto out; | |
4893 | ||
786b99ed | 4894 | fb = drm_framebuffer_lookup(dev, page_flip->fb_id); |
37c4e705 VS |
4895 | if (!fb) { |
4896 | ret = -ENOENT; | |
d91d8a3f | 4897 | goto out; |
37c4e705 | 4898 | } |
d91d8a3f | 4899 | |
c11e9283 DL |
4900 | ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); |
4901 | if (ret) | |
5f61bb42 | 4902 | goto out; |
5f61bb42 | 4903 | |
f4510a27 | 4904 | if (crtc->primary->fb->pixel_format != fb->pixel_format) { |
909d9cda LP |
4905 | DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); |
4906 | ret = -EINVAL; | |
4907 | goto out; | |
4908 | } | |
4909 | ||
d91d8a3f KH |
4910 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
4911 | ret = -ENOMEM; | |
4912 | spin_lock_irqsave(&dev->event_lock, flags); | |
f76511b9 | 4913 | if (file_priv->event_space < sizeof(e->event)) { |
d91d8a3f KH |
4914 | spin_unlock_irqrestore(&dev->event_lock, flags); |
4915 | goto out; | |
4916 | } | |
f76511b9 | 4917 | file_priv->event_space -= sizeof(e->event); |
d91d8a3f KH |
4918 | spin_unlock_irqrestore(&dev->event_lock, flags); |
4919 | ||
f76511b9 | 4920 | e = kzalloc(sizeof(*e), GFP_KERNEL); |
d91d8a3f KH |
4921 | if (e == NULL) { |
4922 | spin_lock_irqsave(&dev->event_lock, flags); | |
f76511b9 | 4923 | file_priv->event_space += sizeof(e->event); |
d91d8a3f KH |
4924 | spin_unlock_irqrestore(&dev->event_lock, flags); |
4925 | goto out; | |
4926 | } | |
4927 | ||
7bd4d7be | 4928 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; |
f76511b9 | 4929 | e->event.base.length = sizeof(e->event); |
d91d8a3f KH |
4930 | e->event.user_data = page_flip->user_data; |
4931 | e->base.event = &e->event.base; | |
4932 | e->base.file_priv = file_priv; | |
4933 | e->base.destroy = | |
4934 | (void (*) (struct drm_pending_event *)) kfree; | |
4935 | } | |
4936 | ||
3d30a59b | 4937 | crtc->primary->old_fb = crtc->primary->fb; |
ed8d1975 | 4938 | ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); |
d91d8a3f | 4939 | if (ret) { |
aef6a7ee JS |
4940 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
4941 | spin_lock_irqsave(&dev->event_lock, flags); | |
f76511b9 | 4942 | file_priv->event_space += sizeof(e->event); |
aef6a7ee JS |
4943 | spin_unlock_irqrestore(&dev->event_lock, flags); |
4944 | kfree(e); | |
4945 | } | |
b0d12325 | 4946 | /* Keep the old fb, don't unref it. */ |
3d30a59b | 4947 | crtc->primary->old_fb = NULL; |
b0d12325 | 4948 | } else { |
8cf1e981 TR |
4949 | /* |
4950 | * Warn if the driver hasn't properly updated the crtc->fb | |
4951 | * field to reflect that the new framebuffer is now used. | |
4952 | * Failing to do so will screw with the reference counting | |
4953 | * on framebuffers. | |
4954 | */ | |
f4510a27 | 4955 | WARN_ON(crtc->primary->fb != fb); |
b0d12325 DV |
4956 | /* Unref only the old framebuffer. */ |
4957 | fb = NULL; | |
d91d8a3f KH |
4958 | } |
4959 | ||
4960 | out: | |
b0d12325 DV |
4961 | if (fb) |
4962 | drm_framebuffer_unreference(fb); | |
3d30a59b DV |
4963 | if (crtc->primary->old_fb) |
4964 | drm_framebuffer_unreference(crtc->primary->old_fb); | |
4965 | crtc->primary->old_fb = NULL; | |
d059f652 | 4966 | drm_modeset_unlock_crtc(crtc); |
b4d5e7d1 | 4967 | |
d91d8a3f KH |
4968 | return ret; |
4969 | } | |
eb033556 | 4970 | |
c8e32cc1 DV |
4971 | /** |
4972 | * drm_mode_config_reset - call ->reset callbacks | |
4973 | * @dev: drm device | |
4974 | * | |
4975 | * This functions calls all the crtc's, encoder's and connector's ->reset | |
4976 | * callback. Drivers can use this in e.g. their driver load or resume code to | |
4977 | * reset hardware and software state. | |
4978 | */ | |
eb033556 CW |
4979 | void drm_mode_config_reset(struct drm_device *dev) |
4980 | { | |
4981 | struct drm_crtc *crtc; | |
2a0d7cfd | 4982 | struct drm_plane *plane; |
eb033556 CW |
4983 | struct drm_encoder *encoder; |
4984 | struct drm_connector *connector; | |
4985 | ||
2a0d7cfd DV |
4986 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) |
4987 | if (plane->funcs->reset) | |
4988 | plane->funcs->reset(plane); | |
4989 | ||
eb033556 CW |
4990 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) |
4991 | if (crtc->funcs->reset) | |
4992 | crtc->funcs->reset(crtc); | |
4993 | ||
4994 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
4995 | if (encoder->funcs->reset) | |
4996 | encoder->funcs->reset(encoder); | |
4997 | ||
5e2cb2f6 DV |
4998 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
4999 | connector->status = connector_status_unknown; | |
5000 | ||
eb033556 CW |
5001 | if (connector->funcs->reset) |
5002 | connector->funcs->reset(connector); | |
5e2cb2f6 | 5003 | } |
eb033556 CW |
5004 | } |
5005 | EXPORT_SYMBOL(drm_mode_config_reset); | |
ff72145b | 5006 | |
c8e32cc1 DV |
5007 | /** |
5008 | * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer | |
5009 | * @dev: DRM device | |
5010 | * @data: ioctl data | |
5011 | * @file_priv: DRM file info | |
5012 | * | |
5013 | * This creates a new dumb buffer in the driver's backing storage manager (GEM, | |
5014 | * TTM or something else entirely) and returns the resulting buffer handle. This | |
5015 | * handle can then be wrapped up into a framebuffer modeset object. | |
5016 | * | |
5017 | * Note that userspace is not allowed to use such objects for render | |
5018 | * acceleration - drivers must create their own private ioctls for such a use | |
5019 | * case. | |
5020 | * | |
5021 | * Called by the user via ioctl. | |
5022 | * | |
5023 | * Returns: | |
1a498633 | 5024 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5025 | */ |
ff72145b DA |
5026 | int drm_mode_create_dumb_ioctl(struct drm_device *dev, |
5027 | void *data, struct drm_file *file_priv) | |
5028 | { | |
5029 | struct drm_mode_create_dumb *args = data; | |
b28cd41f | 5030 | u32 cpp, stride, size; |
ff72145b DA |
5031 | |
5032 | if (!dev->driver->dumb_create) | |
5033 | return -ENOSYS; | |
b28cd41f DH |
5034 | if (!args->width || !args->height || !args->bpp) |
5035 | return -EINVAL; | |
5036 | ||
5037 | /* overflow checks for 32bit size calculations */ | |
00e72089 | 5038 | /* NOTE: DIV_ROUND_UP() can overflow */ |
b28cd41f | 5039 | cpp = DIV_ROUND_UP(args->bpp, 8); |
00e72089 | 5040 | if (!cpp || cpp > 0xffffffffU / args->width) |
b28cd41f DH |
5041 | return -EINVAL; |
5042 | stride = cpp * args->width; | |
5043 | if (args->height > 0xffffffffU / stride) | |
5044 | return -EINVAL; | |
5045 | ||
5046 | /* test for wrap-around */ | |
5047 | size = args->height * stride; | |
5048 | if (PAGE_ALIGN(size) == 0) | |
5049 | return -EINVAL; | |
5050 | ||
f6085952 TR |
5051 | /* |
5052 | * handle, pitch and size are output parameters. Zero them out to | |
5053 | * prevent drivers from accidentally using uninitialized data. Since | |
5054 | * not all existing userspace is clearing these fields properly we | |
5055 | * cannot reject IOCTL with garbage in them. | |
5056 | */ | |
5057 | args->handle = 0; | |
5058 | args->pitch = 0; | |
5059 | args->size = 0; | |
5060 | ||
ff72145b DA |
5061 | return dev->driver->dumb_create(file_priv, dev, args); |
5062 | } | |
5063 | ||
c8e32cc1 DV |
5064 | /** |
5065 | * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer | |
5066 | * @dev: DRM device | |
5067 | * @data: ioctl data | |
5068 | * @file_priv: DRM file info | |
5069 | * | |
5070 | * Allocate an offset in the drm device node's address space to be able to | |
5071 | * memory map a dumb buffer. | |
5072 | * | |
5073 | * Called by the user via ioctl. | |
5074 | * | |
5075 | * Returns: | |
1a498633 | 5076 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5077 | */ |
ff72145b DA |
5078 | int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, |
5079 | void *data, struct drm_file *file_priv) | |
5080 | { | |
5081 | struct drm_mode_map_dumb *args = data; | |
5082 | ||
5083 | /* call driver ioctl to get mmap offset */ | |
5084 | if (!dev->driver->dumb_map_offset) | |
5085 | return -ENOSYS; | |
5086 | ||
5087 | return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); | |
5088 | } | |
5089 | ||
c8e32cc1 DV |
5090 | /** |
5091 | * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer | |
5092 | * @dev: DRM device | |
5093 | * @data: ioctl data | |
5094 | * @file_priv: DRM file info | |
5095 | * | |
5096 | * This destroys the userspace handle for the given dumb backing storage buffer. | |
5097 | * Since buffer objects must be reference counted in the kernel a buffer object | |
5098 | * won't be immediately freed if a framebuffer modeset object still uses it. | |
5099 | * | |
5100 | * Called by the user via ioctl. | |
5101 | * | |
5102 | * Returns: | |
1a498633 | 5103 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5104 | */ |
ff72145b DA |
5105 | int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, |
5106 | void *data, struct drm_file *file_priv) | |
5107 | { | |
5108 | struct drm_mode_destroy_dumb *args = data; | |
5109 | ||
5110 | if (!dev->driver->dumb_destroy) | |
5111 | return -ENOSYS; | |
5112 | ||
5113 | return dev->driver->dumb_destroy(file_priv, dev, args->handle); | |
5114 | } | |
248dbc23 | 5115 | |
c8e32cc1 DV |
5116 | /** |
5117 | * drm_fb_get_bpp_depth - get the bpp/depth values for format | |
5118 | * @format: pixel format (DRM_FORMAT_*) | |
5119 | * @depth: storage for the depth value | |
5120 | * @bpp: storage for the bpp value | |
5121 | * | |
5122 | * This only supports RGB formats here for compat with code that doesn't use | |
5123 | * pixel formats directly yet. | |
248dbc23 DA |
5124 | */ |
5125 | void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, | |
5126 | int *bpp) | |
5127 | { | |
5128 | switch (format) { | |
c51a6bc5 | 5129 | case DRM_FORMAT_C8: |
04b3924d VS |
5130 | case DRM_FORMAT_RGB332: |
5131 | case DRM_FORMAT_BGR233: | |
248dbc23 DA |
5132 | *depth = 8; |
5133 | *bpp = 8; | |
5134 | break; | |
04b3924d VS |
5135 | case DRM_FORMAT_XRGB1555: |
5136 | case DRM_FORMAT_XBGR1555: | |
5137 | case DRM_FORMAT_RGBX5551: | |
5138 | case DRM_FORMAT_BGRX5551: | |
5139 | case DRM_FORMAT_ARGB1555: | |
5140 | case DRM_FORMAT_ABGR1555: | |
5141 | case DRM_FORMAT_RGBA5551: | |
5142 | case DRM_FORMAT_BGRA5551: | |
248dbc23 DA |
5143 | *depth = 15; |
5144 | *bpp = 16; | |
5145 | break; | |
04b3924d VS |
5146 | case DRM_FORMAT_RGB565: |
5147 | case DRM_FORMAT_BGR565: | |
248dbc23 DA |
5148 | *depth = 16; |
5149 | *bpp = 16; | |
5150 | break; | |
04b3924d VS |
5151 | case DRM_FORMAT_RGB888: |
5152 | case DRM_FORMAT_BGR888: | |
5153 | *depth = 24; | |
5154 | *bpp = 24; | |
5155 | break; | |
5156 | case DRM_FORMAT_XRGB8888: | |
5157 | case DRM_FORMAT_XBGR8888: | |
5158 | case DRM_FORMAT_RGBX8888: | |
5159 | case DRM_FORMAT_BGRX8888: | |
248dbc23 DA |
5160 | *depth = 24; |
5161 | *bpp = 32; | |
5162 | break; | |
04b3924d VS |
5163 | case DRM_FORMAT_XRGB2101010: |
5164 | case DRM_FORMAT_XBGR2101010: | |
5165 | case DRM_FORMAT_RGBX1010102: | |
5166 | case DRM_FORMAT_BGRX1010102: | |
5167 | case DRM_FORMAT_ARGB2101010: | |
5168 | case DRM_FORMAT_ABGR2101010: | |
5169 | case DRM_FORMAT_RGBA1010102: | |
5170 | case DRM_FORMAT_BGRA1010102: | |
248dbc23 DA |
5171 | *depth = 30; |
5172 | *bpp = 32; | |
5173 | break; | |
04b3924d VS |
5174 | case DRM_FORMAT_ARGB8888: |
5175 | case DRM_FORMAT_ABGR8888: | |
5176 | case DRM_FORMAT_RGBA8888: | |
5177 | case DRM_FORMAT_BGRA8888: | |
248dbc23 DA |
5178 | *depth = 32; |
5179 | *bpp = 32; | |
5180 | break; | |
5181 | default: | |
23c453a4 VS |
5182 | DRM_DEBUG_KMS("unsupported pixel format %s\n", |
5183 | drm_get_format_name(format)); | |
248dbc23 DA |
5184 | *depth = 0; |
5185 | *bpp = 0; | |
5186 | break; | |
5187 | } | |
5188 | } | |
5189 | EXPORT_SYMBOL(drm_fb_get_bpp_depth); | |
141670e9 VS |
5190 | |
5191 | /** | |
5192 | * drm_format_num_planes - get the number of planes for format | |
5193 | * @format: pixel format (DRM_FORMAT_*) | |
5194 | * | |
c8e32cc1 | 5195 | * Returns: |
141670e9 VS |
5196 | * The number of planes used by the specified pixel format. |
5197 | */ | |
5198 | int drm_format_num_planes(uint32_t format) | |
5199 | { | |
5200 | switch (format) { | |
5201 | case DRM_FORMAT_YUV410: | |
5202 | case DRM_FORMAT_YVU410: | |
5203 | case DRM_FORMAT_YUV411: | |
5204 | case DRM_FORMAT_YVU411: | |
5205 | case DRM_FORMAT_YUV420: | |
5206 | case DRM_FORMAT_YVU420: | |
5207 | case DRM_FORMAT_YUV422: | |
5208 | case DRM_FORMAT_YVU422: | |
5209 | case DRM_FORMAT_YUV444: | |
5210 | case DRM_FORMAT_YVU444: | |
5211 | return 3; | |
5212 | case DRM_FORMAT_NV12: | |
5213 | case DRM_FORMAT_NV21: | |
5214 | case DRM_FORMAT_NV16: | |
5215 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
5216 | case DRM_FORMAT_NV24: |
5217 | case DRM_FORMAT_NV42: | |
141670e9 VS |
5218 | return 2; |
5219 | default: | |
5220 | return 1; | |
5221 | } | |
5222 | } | |
5223 | EXPORT_SYMBOL(drm_format_num_planes); | |
5a86bd55 VS |
5224 | |
5225 | /** | |
5226 | * drm_format_plane_cpp - determine the bytes per pixel value | |
5227 | * @format: pixel format (DRM_FORMAT_*) | |
5228 | * @plane: plane index | |
5229 | * | |
c8e32cc1 | 5230 | * Returns: |
5a86bd55 VS |
5231 | * The bytes per pixel value for the specified plane. |
5232 | */ | |
5233 | int drm_format_plane_cpp(uint32_t format, int plane) | |
5234 | { | |
5235 | unsigned int depth; | |
5236 | int bpp; | |
5237 | ||
5238 | if (plane >= drm_format_num_planes(format)) | |
5239 | return 0; | |
5240 | ||
5241 | switch (format) { | |
5242 | case DRM_FORMAT_YUYV: | |
5243 | case DRM_FORMAT_YVYU: | |
5244 | case DRM_FORMAT_UYVY: | |
5245 | case DRM_FORMAT_VYUY: | |
5246 | return 2; | |
5247 | case DRM_FORMAT_NV12: | |
5248 | case DRM_FORMAT_NV21: | |
5249 | case DRM_FORMAT_NV16: | |
5250 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
5251 | case DRM_FORMAT_NV24: |
5252 | case DRM_FORMAT_NV42: | |
5a86bd55 VS |
5253 | return plane ? 2 : 1; |
5254 | case DRM_FORMAT_YUV410: | |
5255 | case DRM_FORMAT_YVU410: | |
5256 | case DRM_FORMAT_YUV411: | |
5257 | case DRM_FORMAT_YVU411: | |
5258 | case DRM_FORMAT_YUV420: | |
5259 | case DRM_FORMAT_YVU420: | |
5260 | case DRM_FORMAT_YUV422: | |
5261 | case DRM_FORMAT_YVU422: | |
5262 | case DRM_FORMAT_YUV444: | |
5263 | case DRM_FORMAT_YVU444: | |
5264 | return 1; | |
5265 | default: | |
5266 | drm_fb_get_bpp_depth(format, &depth, &bpp); | |
5267 | return bpp >> 3; | |
5268 | } | |
5269 | } | |
5270 | EXPORT_SYMBOL(drm_format_plane_cpp); | |
01b68b04 VS |
5271 | |
5272 | /** | |
5273 | * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor | |
5274 | * @format: pixel format (DRM_FORMAT_*) | |
5275 | * | |
c8e32cc1 | 5276 | * Returns: |
01b68b04 VS |
5277 | * The horizontal chroma subsampling factor for the |
5278 | * specified pixel format. | |
5279 | */ | |
5280 | int drm_format_horz_chroma_subsampling(uint32_t format) | |
5281 | { | |
5282 | switch (format) { | |
5283 | case DRM_FORMAT_YUV411: | |
5284 | case DRM_FORMAT_YVU411: | |
5285 | case DRM_FORMAT_YUV410: | |
5286 | case DRM_FORMAT_YVU410: | |
5287 | return 4; | |
5288 | case DRM_FORMAT_YUYV: | |
5289 | case DRM_FORMAT_YVYU: | |
5290 | case DRM_FORMAT_UYVY: | |
5291 | case DRM_FORMAT_VYUY: | |
5292 | case DRM_FORMAT_NV12: | |
5293 | case DRM_FORMAT_NV21: | |
5294 | case DRM_FORMAT_NV16: | |
5295 | case DRM_FORMAT_NV61: | |
5296 | case DRM_FORMAT_YUV422: | |
5297 | case DRM_FORMAT_YVU422: | |
5298 | case DRM_FORMAT_YUV420: | |
5299 | case DRM_FORMAT_YVU420: | |
5300 | return 2; | |
5301 | default: | |
5302 | return 1; | |
5303 | } | |
5304 | } | |
5305 | EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); | |
5306 | ||
5307 | /** | |
5308 | * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor | |
5309 | * @format: pixel format (DRM_FORMAT_*) | |
5310 | * | |
c8e32cc1 | 5311 | * Returns: |
01b68b04 VS |
5312 | * The vertical chroma subsampling factor for the |
5313 | * specified pixel format. | |
5314 | */ | |
5315 | int drm_format_vert_chroma_subsampling(uint32_t format) | |
5316 | { | |
5317 | switch (format) { | |
5318 | case DRM_FORMAT_YUV410: | |
5319 | case DRM_FORMAT_YVU410: | |
5320 | return 4; | |
5321 | case DRM_FORMAT_YUV420: | |
5322 | case DRM_FORMAT_YVU420: | |
5323 | case DRM_FORMAT_NV12: | |
5324 | case DRM_FORMAT_NV21: | |
5325 | return 2; | |
5326 | default: | |
5327 | return 1; | |
5328 | } | |
5329 | } | |
5330 | EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); | |
87d24fc3 | 5331 | |
3c9855f6 VS |
5332 | /** |
5333 | * drm_rotation_simplify() - Try to simplify the rotation | |
5334 | * @rotation: Rotation to be simplified | |
5335 | * @supported_rotations: Supported rotations | |
5336 | * | |
5337 | * Attempt to simplify the rotation to a form that is supported. | |
5338 | * Eg. if the hardware supports everything except DRM_REFLECT_X | |
5339 | * one could call this function like this: | |
5340 | * | |
5341 | * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) | | |
5342 | * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) | | |
5343 | * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y)); | |
5344 | * | |
5345 | * to eliminate the DRM_ROTATE_X flag. Depending on what kind of | |
5346 | * transforms the hardware supports, this function may not | |
5347 | * be able to produce a supported transform, so the caller should | |
5348 | * check the result afterwards. | |
5349 | */ | |
5350 | unsigned int drm_rotation_simplify(unsigned int rotation, | |
5351 | unsigned int supported_rotations) | |
5352 | { | |
5353 | if (rotation & ~supported_rotations) { | |
5354 | rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y); | |
5355 | rotation = (rotation & ~0xf) | BIT((ffs(rotation & 0xf) + 1) % 4); | |
5356 | } | |
5357 | ||
5358 | return rotation; | |
5359 | } | |
5360 | EXPORT_SYMBOL(drm_rotation_simplify); | |
5361 | ||
87d24fc3 LP |
5362 | /** |
5363 | * drm_mode_config_init - initialize DRM mode_configuration structure | |
5364 | * @dev: DRM device | |
5365 | * | |
5366 | * Initialize @dev's mode_config structure, used for tracking the graphics | |
5367 | * configuration of @dev. | |
5368 | * | |
5369 | * Since this initializes the modeset locks, no locking is possible. Which is no | |
5370 | * problem, since this should happen single threaded at init time. It is the | |
5371 | * driver's problem to ensure this guarantee. | |
5372 | * | |
5373 | */ | |
5374 | void drm_mode_config_init(struct drm_device *dev) | |
5375 | { | |
5376 | mutex_init(&dev->mode_config.mutex); | |
51fd371b | 5377 | drm_modeset_lock_init(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
5378 | mutex_init(&dev->mode_config.idr_mutex); |
5379 | mutex_init(&dev->mode_config.fb_lock); | |
5380 | INIT_LIST_HEAD(&dev->mode_config.fb_list); | |
5381 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); | |
5382 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
5383 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); | |
5384 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
5385 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
5386 | INIT_LIST_HEAD(&dev->mode_config.plane_list); | |
5387 | idr_init(&dev->mode_config.crtc_idr); | |
138f9ebb | 5388 | idr_init(&dev->mode_config.tile_idr); |
87d24fc3 LP |
5389 | |
5390 | drm_modeset_lock_all(dev); | |
6b4959f4 | 5391 | drm_mode_create_standard_properties(dev); |
87d24fc3 LP |
5392 | drm_modeset_unlock_all(dev); |
5393 | ||
5394 | /* Just to be sure */ | |
5395 | dev->mode_config.num_fb = 0; | |
5396 | dev->mode_config.num_connector = 0; | |
5397 | dev->mode_config.num_crtc = 0; | |
5398 | dev->mode_config.num_encoder = 0; | |
e27dde3e MR |
5399 | dev->mode_config.num_overlay_plane = 0; |
5400 | dev->mode_config.num_total_plane = 0; | |
87d24fc3 LP |
5401 | } |
5402 | EXPORT_SYMBOL(drm_mode_config_init); | |
5403 | ||
5404 | /** | |
5405 | * drm_mode_config_cleanup - free up DRM mode_config info | |
5406 | * @dev: DRM device | |
5407 | * | |
5408 | * Free up all the connectors and CRTCs associated with this DRM device, then | |
5409 | * free up the framebuffers and associated buffer objects. | |
5410 | * | |
5411 | * Note that since this /should/ happen single-threaded at driver/device | |
5412 | * teardown time, no locking is required. It's the driver's job to ensure that | |
5413 | * this guarantee actually holds true. | |
5414 | * | |
5415 | * FIXME: cleanup any dangling user buffer objects too | |
5416 | */ | |
5417 | void drm_mode_config_cleanup(struct drm_device *dev) | |
5418 | { | |
5419 | struct drm_connector *connector, *ot; | |
5420 | struct drm_crtc *crtc, *ct; | |
5421 | struct drm_encoder *encoder, *enct; | |
5422 | struct drm_framebuffer *fb, *fbt; | |
5423 | struct drm_property *property, *pt; | |
5424 | struct drm_property_blob *blob, *bt; | |
5425 | struct drm_plane *plane, *plt; | |
5426 | ||
5427 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
5428 | head) { | |
5429 | encoder->funcs->destroy(encoder); | |
5430 | } | |
5431 | ||
5432 | list_for_each_entry_safe(connector, ot, | |
5433 | &dev->mode_config.connector_list, head) { | |
5434 | connector->funcs->destroy(connector); | |
5435 | } | |
5436 | ||
5437 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
5438 | head) { | |
5439 | drm_property_destroy(dev, property); | |
5440 | } | |
5441 | ||
5442 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, | |
5443 | head) { | |
5444 | drm_property_destroy_blob(dev, blob); | |
5445 | } | |
5446 | ||
5447 | /* | |
5448 | * Single-threaded teardown context, so it's not required to grab the | |
5449 | * fb_lock to protect against concurrent fb_list access. Contrary, it | |
5450 | * would actually deadlock with the drm_framebuffer_cleanup function. | |
5451 | * | |
5452 | * Also, if there are any framebuffers left, that's a driver leak now, | |
5453 | * so politely WARN about this. | |
5454 | */ | |
5455 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); | |
5456 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { | |
5457 | drm_framebuffer_remove(fb); | |
5458 | } | |
5459 | ||
5460 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, | |
5461 | head) { | |
5462 | plane->funcs->destroy(plane); | |
5463 | } | |
5464 | ||
5465 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { | |
5466 | crtc->funcs->destroy(crtc); | |
5467 | } | |
5468 | ||
138f9ebb | 5469 | idr_destroy(&dev->mode_config.tile_idr); |
87d24fc3 | 5470 | idr_destroy(&dev->mode_config.crtc_idr); |
51fd371b | 5471 | drm_modeset_lock_fini(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
5472 | } |
5473 | EXPORT_SYMBOL(drm_mode_config_cleanup); | |
c1df5f3c VS |
5474 | |
5475 | struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, | |
5476 | unsigned int supported_rotations) | |
5477 | { | |
5478 | static const struct drm_prop_enum_list props[] = { | |
5479 | { DRM_ROTATE_0, "rotate-0" }, | |
5480 | { DRM_ROTATE_90, "rotate-90" }, | |
5481 | { DRM_ROTATE_180, "rotate-180" }, | |
5482 | { DRM_ROTATE_270, "rotate-270" }, | |
5483 | { DRM_REFLECT_X, "reflect-x" }, | |
5484 | { DRM_REFLECT_Y, "reflect-y" }, | |
5485 | }; | |
5486 | ||
5487 | return drm_property_create_bitmask(dev, 0, "rotation", | |
5488 | props, ARRAY_SIZE(props), | |
5489 | supported_rotations); | |
5490 | } | |
5491 | EXPORT_SYMBOL(drm_mode_create_rotation_property); | |
138f9ebb DA |
5492 | |
5493 | /** | |
5494 | * DOC: Tile group | |
5495 | * | |
5496 | * Tile groups are used to represent tiled monitors with a unique | |
5497 | * integer identifier. Tiled monitors using DisplayID v1.3 have | |
5498 | * a unique 8-byte handle, we store this in a tile group, so we | |
5499 | * have a common identifier for all tiles in a monitor group. | |
5500 | */ | |
5501 | static void drm_tile_group_free(struct kref *kref) | |
5502 | { | |
5503 | struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount); | |
5504 | struct drm_device *dev = tg->dev; | |
5505 | mutex_lock(&dev->mode_config.idr_mutex); | |
5506 | idr_remove(&dev->mode_config.tile_idr, tg->id); | |
5507 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5508 | kfree(tg); | |
5509 | } | |
5510 | ||
5511 | /** | |
5512 | * drm_mode_put_tile_group - drop a reference to a tile group. | |
5513 | * @dev: DRM device | |
5514 | * @tg: tile group to drop reference to. | |
5515 | * | |
5516 | * drop reference to tile group and free if 0. | |
5517 | */ | |
5518 | void drm_mode_put_tile_group(struct drm_device *dev, | |
5519 | struct drm_tile_group *tg) | |
5520 | { | |
5521 | kref_put(&tg->refcount, drm_tile_group_free); | |
5522 | } | |
5523 | ||
5524 | /** | |
5525 | * drm_mode_get_tile_group - get a reference to an existing tile group | |
5526 | * @dev: DRM device | |
5527 | * @topology: 8-bytes unique per monitor. | |
5528 | * | |
5529 | * Use the unique bytes to get a reference to an existing tile group. | |
5530 | * | |
5531 | * RETURNS: | |
5532 | * tile group or NULL if not found. | |
5533 | */ | |
5534 | struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, | |
5535 | char topology[8]) | |
5536 | { | |
5537 | struct drm_tile_group *tg; | |
5538 | int id; | |
5539 | mutex_lock(&dev->mode_config.idr_mutex); | |
5540 | idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) { | |
5541 | if (!memcmp(tg->group_data, topology, 8)) { | |
5542 | if (!kref_get_unless_zero(&tg->refcount)) | |
5543 | tg = NULL; | |
5544 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5545 | return tg; | |
5546 | } | |
5547 | } | |
5548 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5549 | return NULL; | |
5550 | } | |
5551 | ||
5552 | /** | |
5553 | * drm_mode_create_tile_group - create a tile group from a displayid description | |
5554 | * @dev: DRM device | |
5555 | * @topology: 8-bytes unique per monitor. | |
5556 | * | |
5557 | * Create a tile group for the unique monitor, and get a unique | |
5558 | * identifier for the tile group. | |
5559 | * | |
5560 | * RETURNS: | |
5561 | * new tile group or error. | |
5562 | */ | |
5563 | struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, | |
5564 | char topology[8]) | |
5565 | { | |
5566 | struct drm_tile_group *tg; | |
5567 | int ret; | |
5568 | ||
5569 | tg = kzalloc(sizeof(*tg), GFP_KERNEL); | |
5570 | if (!tg) | |
5571 | return ERR_PTR(-ENOMEM); | |
5572 | ||
5573 | kref_init(&tg->refcount); | |
5574 | memcpy(tg->group_data, topology, 8); | |
5575 | tg->dev = dev; | |
5576 | ||
5577 | mutex_lock(&dev->mode_config.idr_mutex); | |
5578 | ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL); | |
5579 | if (ret >= 0) { | |
5580 | tg->id = ret; | |
5581 | } else { | |
5582 | kfree(tg); | |
5583 | tg = ERR_PTR(ret); | |
5584 | } | |
5585 | ||
5586 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5587 | return tg; | |
5588 | } |