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 | |
9a6f5130 CW |
46 | static struct drm_framebuffer * |
47 | internal_framebuffer_create(struct drm_device *dev, | |
48 | struct drm_mode_fb_cmd2 *r, | |
49 | struct drm_file *file_priv); | |
c394c2b0 | 50 | |
f453ba04 DA |
51 | /* Avoid boilerplate. I'm tired of typing. */ |
52 | #define DRM_ENUM_NAME_FN(fnname, list) \ | |
d20d3174 | 53 | const char *fnname(int val) \ |
f453ba04 DA |
54 | { \ |
55 | int i; \ | |
56 | for (i = 0; i < ARRAY_SIZE(list); i++) { \ | |
57 | if (list[i].type == val) \ | |
58 | return list[i].name; \ | |
59 | } \ | |
60 | return "(unknown)"; \ | |
61 | } | |
62 | ||
63 | /* | |
64 | * Global properties | |
65 | */ | |
4dfd909f TR |
66 | static const struct drm_prop_enum_list drm_dpms_enum_list[] = { |
67 | { DRM_MODE_DPMS_ON, "On" }, | |
f453ba04 DA |
68 | { DRM_MODE_DPMS_STANDBY, "Standby" }, |
69 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, | |
70 | { DRM_MODE_DPMS_OFF, "Off" } | |
71 | }; | |
72 | ||
73 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) | |
74 | ||
4dfd909f | 75 | static const struct drm_prop_enum_list drm_plane_type_enum_list[] = { |
9922ab5a RC |
76 | { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, |
77 | { DRM_PLANE_TYPE_PRIMARY, "Primary" }, | |
78 | { DRM_PLANE_TYPE_CURSOR, "Cursor" }, | |
79 | }; | |
80 | ||
f453ba04 DA |
81 | /* |
82 | * Optional properties | |
83 | */ | |
4dfd909f | 84 | static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = { |
53bd8389 JB |
85 | { DRM_MODE_SCALE_NONE, "None" }, |
86 | { DRM_MODE_SCALE_FULLSCREEN, "Full" }, | |
87 | { DRM_MODE_SCALE_CENTER, "Center" }, | |
88 | { DRM_MODE_SCALE_ASPECT, "Full aspect" }, | |
f453ba04 DA |
89 | }; |
90 | ||
ff587e45 VK |
91 | static const struct drm_prop_enum_list drm_aspect_ratio_enum_list[] = { |
92 | { DRM_MODE_PICTURE_ASPECT_NONE, "Automatic" }, | |
93 | { DRM_MODE_PICTURE_ASPECT_4_3, "4:3" }, | |
94 | { DRM_MODE_PICTURE_ASPECT_16_9, "16:9" }, | |
95 | }; | |
96 | ||
f453ba04 DA |
97 | /* |
98 | * Non-global properties, but "required" for certain connectors. | |
99 | */ | |
4dfd909f | 100 | static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = { |
f453ba04 DA |
101 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
102 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
103 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
104 | }; | |
105 | ||
106 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) | |
107 | ||
4dfd909f | 108 | static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = { |
f453ba04 DA |
109 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
110 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
111 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
112 | }; | |
113 | ||
114 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, | |
115 | drm_dvi_i_subconnector_enum_list) | |
116 | ||
4dfd909f | 117 | static const struct drm_prop_enum_list drm_tv_select_enum_list[] = { |
f453ba04 DA |
118 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
119 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
120 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
121 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 122 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
123 | }; |
124 | ||
125 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) | |
126 | ||
4dfd909f | 127 | static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = { |
f453ba04 DA |
128 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
129 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
130 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
131 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 132 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
133 | }; |
134 | ||
135 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, | |
136 | drm_tv_subconnector_enum_list) | |
137 | ||
d20d3174 | 138 | static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = { |
884840aa JB |
139 | { DRM_MODE_DIRTY_OFF, "Off" }, |
140 | { DRM_MODE_DIRTY_ON, "On" }, | |
141 | { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, | |
142 | }; | |
143 | ||
f453ba04 DA |
144 | struct drm_conn_prop_enum_list { |
145 | int type; | |
d20d3174 | 146 | const char *name; |
b21e3afe | 147 | struct ida ida; |
f453ba04 DA |
148 | }; |
149 | ||
150 | /* | |
151 | * Connector and encoder types. | |
152 | */ | |
4dfd909f TR |
153 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = { |
154 | { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, | |
b21e3afe IM |
155 | { DRM_MODE_CONNECTOR_VGA, "VGA" }, |
156 | { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, | |
157 | { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, | |
158 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, | |
159 | { DRM_MODE_CONNECTOR_Composite, "Composite" }, | |
160 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, | |
161 | { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, | |
162 | { DRM_MODE_CONNECTOR_Component, "Component" }, | |
163 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, | |
164 | { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, | |
165 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, | |
166 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, | |
167 | { DRM_MODE_CONNECTOR_TV, "TV" }, | |
168 | { DRM_MODE_CONNECTOR_eDP, "eDP" }, | |
169 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, | |
b8923273 | 170 | { DRM_MODE_CONNECTOR_DSI, "DSI" }, |
f453ba04 DA |
171 | }; |
172 | ||
4dfd909f TR |
173 | static const struct drm_prop_enum_list drm_encoder_enum_list[] = { |
174 | { DRM_MODE_ENCODER_NONE, "None" }, | |
f453ba04 DA |
175 | { DRM_MODE_ENCODER_DAC, "DAC" }, |
176 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, | |
177 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, | |
178 | { DRM_MODE_ENCODER_TVDAC, "TV" }, | |
a7331e5c | 179 | { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, |
b8923273 | 180 | { DRM_MODE_ENCODER_DSI, "DSI" }, |
182407a6 | 181 | { DRM_MODE_ENCODER_DPMST, "DP MST" }, |
f453ba04 DA |
182 | }; |
183 | ||
4dfd909f | 184 | static const struct drm_prop_enum_list drm_subpixel_enum_list[] = { |
ac1bb36c JB |
185 | { SubPixelUnknown, "Unknown" }, |
186 | { SubPixelHorizontalRGB, "Horizontal RGB" }, | |
187 | { SubPixelHorizontalBGR, "Horizontal BGR" }, | |
188 | { SubPixelVerticalRGB, "Vertical RGB" }, | |
189 | { SubPixelVerticalBGR, "Vertical BGR" }, | |
190 | { SubPixelNone, "None" }, | |
191 | }; | |
192 | ||
b21e3afe IM |
193 | void drm_connector_ida_init(void) |
194 | { | |
195 | int i; | |
196 | ||
197 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
198 | ida_init(&drm_connector_enum_list[i].ida); | |
199 | } | |
200 | ||
201 | void drm_connector_ida_destroy(void) | |
202 | { | |
203 | int i; | |
204 | ||
205 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
206 | ida_destroy(&drm_connector_enum_list[i].ida); | |
207 | } | |
208 | ||
c8e32cc1 DV |
209 | /** |
210 | * drm_get_connector_status_name - return a string for connector status | |
211 | * @status: connector status to compute name of | |
212 | * | |
213 | * In contrast to the other drm_get_*_name functions this one here returns a | |
214 | * const pointer and hence is threadsafe. | |
215 | */ | |
d20d3174 | 216 | const char *drm_get_connector_status_name(enum drm_connector_status status) |
f453ba04 DA |
217 | { |
218 | if (status == connector_status_connected) | |
219 | return "connected"; | |
220 | else if (status == connector_status_disconnected) | |
221 | return "disconnected"; | |
222 | else | |
223 | return "unknown"; | |
224 | } | |
ed7951dc | 225 | EXPORT_SYMBOL(drm_get_connector_status_name); |
f453ba04 | 226 | |
ac1bb36c JB |
227 | /** |
228 | * drm_get_subpixel_order_name - return a string for a given subpixel enum | |
229 | * @order: enum of subpixel_order | |
230 | * | |
231 | * Note you could abuse this and return something out of bounds, but that | |
232 | * would be a caller error. No unscrubbed user data should make it here. | |
233 | */ | |
234 | const char *drm_get_subpixel_order_name(enum subpixel_order order) | |
235 | { | |
236 | return drm_subpixel_enum_list[order].name; | |
237 | } | |
238 | EXPORT_SYMBOL(drm_get_subpixel_order_name); | |
239 | ||
6ba6d03e VS |
240 | static char printable_char(int c) |
241 | { | |
242 | return isascii(c) && isprint(c) ? c : '?'; | |
243 | } | |
244 | ||
c8e32cc1 DV |
245 | /** |
246 | * drm_get_format_name - return a string for drm fourcc format | |
247 | * @format: format to compute name of | |
248 | * | |
249 | * Note that the buffer used by this function is globally shared and owned by | |
250 | * the function itself. | |
251 | * | |
252 | * FIXME: This isn't really multithreading safe. | |
253 | */ | |
d20d3174 | 254 | const char *drm_get_format_name(uint32_t format) |
6ba6d03e VS |
255 | { |
256 | static char buf[32]; | |
257 | ||
258 | snprintf(buf, sizeof(buf), | |
259 | "%c%c%c%c %s-endian (0x%08x)", | |
260 | printable_char(format & 0xff), | |
261 | printable_char((format >> 8) & 0xff), | |
262 | printable_char((format >> 16) & 0xff), | |
263 | printable_char((format >> 24) & 0x7f), | |
264 | format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little", | |
265 | format); | |
266 | ||
267 | return buf; | |
268 | } | |
269 | EXPORT_SYMBOL(drm_get_format_name); | |
270 | ||
2ee39452 DA |
271 | /* |
272 | * Internal function to assign a slot in the object idr and optionally | |
273 | * register the object into the idr. | |
274 | */ | |
275 | static int drm_mode_object_get_reg(struct drm_device *dev, | |
276 | struct drm_mode_object *obj, | |
277 | uint32_t obj_type, | |
278 | bool register_obj) | |
279 | { | |
280 | int ret; | |
281 | ||
282 | mutex_lock(&dev->mode_config.idr_mutex); | |
283 | ret = idr_alloc(&dev->mode_config.crtc_idr, register_obj ? obj : NULL, 1, 0, GFP_KERNEL); | |
284 | if (ret >= 0) { | |
285 | /* | |
286 | * Set up the object linking under the protection of the idr | |
287 | * lock so that other users can't see inconsistent state. | |
288 | */ | |
289 | obj->id = ret; | |
290 | obj->type = obj_type; | |
291 | } | |
292 | mutex_unlock(&dev->mode_config.idr_mutex); | |
293 | ||
294 | return ret < 0 ? ret : 0; | |
295 | } | |
296 | ||
f453ba04 | 297 | /** |
065a50ed | 298 | * drm_mode_object_get - allocate a new modeset identifier |
f453ba04 | 299 | * @dev: DRM device |
065a50ed DV |
300 | * @obj: object pointer, used to generate unique ID |
301 | * @obj_type: object type | |
f453ba04 | 302 | * |
f453ba04 | 303 | * Create a unique identifier based on @ptr in @dev's identifier space. Used |
c8e32cc1 DV |
304 | * for tracking modes, CRTCs and connectors. Note that despite the _get postfix |
305 | * modeset identifiers are _not_ reference counted. Hence don't use this for | |
306 | * reference counted modeset objects like framebuffers. | |
f453ba04 | 307 | * |
c8e32cc1 | 308 | * Returns: |
f453ba04 DA |
309 | * New unique (relative to other objects in @dev) integer identifier for the |
310 | * object. | |
311 | */ | |
8bd441b2 DV |
312 | int drm_mode_object_get(struct drm_device *dev, |
313 | struct drm_mode_object *obj, uint32_t obj_type) | |
f453ba04 | 314 | { |
2ee39452 DA |
315 | return drm_mode_object_get_reg(dev, obj, obj_type, true); |
316 | } | |
f453ba04 | 317 | |
2ee39452 DA |
318 | static void drm_mode_object_register(struct drm_device *dev, |
319 | struct drm_mode_object *obj) | |
320 | { | |
ad2563c2 | 321 | mutex_lock(&dev->mode_config.idr_mutex); |
2ee39452 | 322 | idr_replace(&dev->mode_config.crtc_idr, obj, obj->id); |
ad2563c2 | 323 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
324 | } |
325 | ||
326 | /** | |
065a50ed | 327 | * drm_mode_object_put - free a modeset identifer |
f453ba04 | 328 | * @dev: DRM device |
065a50ed | 329 | * @object: object to free |
f453ba04 | 330 | * |
c8e32cc1 DV |
331 | * Free @id from @dev's unique identifier pool. Note that despite the _get |
332 | * postfix modeset identifiers are _not_ reference counted. Hence don't use this | |
333 | * for reference counted modeset objects like framebuffers. | |
f453ba04 | 334 | */ |
8bd441b2 DV |
335 | void drm_mode_object_put(struct drm_device *dev, |
336 | struct drm_mode_object *object) | |
f453ba04 | 337 | { |
ad2563c2 | 338 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 | 339 | idr_remove(&dev->mode_config.crtc_idr, object->id); |
ad2563c2 | 340 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
341 | } |
342 | ||
98f75de4 RC |
343 | static struct drm_mode_object *_object_find(struct drm_device *dev, |
344 | uint32_t id, uint32_t type) | |
345 | { | |
346 | struct drm_mode_object *obj = NULL; | |
347 | ||
348 | mutex_lock(&dev->mode_config.idr_mutex); | |
349 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
168c02ec DV |
350 | if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type) |
351 | obj = NULL; | |
352 | if (obj && obj->id != id) | |
353 | obj = NULL; | |
354 | /* don't leak out unref'd fb's */ | |
6bcacf51 DS |
355 | if (obj && |
356 | (obj->type == DRM_MODE_OBJECT_FB || | |
357 | obj->type == DRM_MODE_OBJECT_BLOB)) | |
98f75de4 RC |
358 | obj = NULL; |
359 | mutex_unlock(&dev->mode_config.idr_mutex); | |
360 | ||
361 | return obj; | |
362 | } | |
363 | ||
786b99ed DV |
364 | /** |
365 | * drm_mode_object_find - look up a drm object with static lifetime | |
366 | * @dev: drm device | |
367 | * @id: id of the mode object | |
368 | * @type: type of the mode object | |
369 | * | |
370 | * Note that framebuffers cannot be looked up with this functions - since those | |
98f75de4 RC |
371 | * are reference counted, they need special treatment. Even with |
372 | * DRM_MODE_OBJECT_ANY (although that will simply return NULL | |
373 | * rather than WARN_ON()). | |
786b99ed | 374 | */ |
7a9c9060 DV |
375 | struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
376 | uint32_t id, uint32_t type) | |
f453ba04 | 377 | { |
ad2563c2 | 378 | struct drm_mode_object *obj = NULL; |
f453ba04 | 379 | |
786b99ed DV |
380 | /* Framebuffers are reference counted and need their own lookup |
381 | * function.*/ | |
6bcacf51 | 382 | WARN_ON(type == DRM_MODE_OBJECT_FB || type == DRM_MODE_OBJECT_BLOB); |
98f75de4 | 383 | obj = _object_find(dev, id, type); |
f453ba04 DA |
384 | return obj; |
385 | } | |
386 | EXPORT_SYMBOL(drm_mode_object_find); | |
387 | ||
f453ba04 DA |
388 | /** |
389 | * drm_framebuffer_init - initialize a framebuffer | |
390 | * @dev: DRM device | |
065a50ed DV |
391 | * @fb: framebuffer to be initialized |
392 | * @funcs: ... with these functions | |
f453ba04 | 393 | * |
f453ba04 DA |
394 | * Allocates an ID for the framebuffer's parent mode object, sets its mode |
395 | * functions & device file and adds it to the master fd list. | |
396 | * | |
4b096ac1 DV |
397 | * IMPORTANT: |
398 | * This functions publishes the fb and makes it available for concurrent access | |
399 | * by other users. Which means by this point the fb _must_ be fully set up - | |
400 | * since all the fb attributes are invariant over its lifetime, no further | |
401 | * locking but only correct reference counting is required. | |
402 | * | |
c8e32cc1 | 403 | * Returns: |
af901ca1 | 404 | * Zero on success, error code on failure. |
f453ba04 DA |
405 | */ |
406 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, | |
407 | const struct drm_framebuffer_funcs *funcs) | |
408 | { | |
409 | int ret; | |
410 | ||
4b096ac1 | 411 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e | 412 | kref_init(&fb->refcount); |
4b096ac1 DV |
413 | INIT_LIST_HEAD(&fb->filp_head); |
414 | fb->dev = dev; | |
415 | fb->funcs = funcs; | |
f7eff60e | 416 | |
f453ba04 | 417 | ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); |
6bfc56aa | 418 | if (ret) |
4b096ac1 | 419 | goto out; |
f453ba04 | 420 | |
f453ba04 DA |
421 | dev->mode_config.num_fb++; |
422 | list_add(&fb->head, &dev->mode_config.fb_list); | |
4b096ac1 DV |
423 | out: |
424 | mutex_unlock(&dev->mode_config.fb_lock); | |
f453ba04 DA |
425 | |
426 | return 0; | |
427 | } | |
428 | EXPORT_SYMBOL(drm_framebuffer_init); | |
429 | ||
83f45fc3 DV |
430 | /* dev->mode_config.fb_lock must be held! */ |
431 | static void __drm_framebuffer_unregister(struct drm_device *dev, | |
432 | struct drm_framebuffer *fb) | |
433 | { | |
434 | mutex_lock(&dev->mode_config.idr_mutex); | |
435 | idr_remove(&dev->mode_config.crtc_idr, fb->base.id); | |
436 | mutex_unlock(&dev->mode_config.idr_mutex); | |
437 | ||
438 | fb->base.id = 0; | |
439 | } | |
440 | ||
f7eff60e RC |
441 | static void drm_framebuffer_free(struct kref *kref) |
442 | { | |
443 | struct drm_framebuffer *fb = | |
444 | container_of(kref, struct drm_framebuffer, refcount); | |
83f45fc3 DV |
445 | struct drm_device *dev = fb->dev; |
446 | ||
447 | /* | |
448 | * The lookup idr holds a weak reference, which has not necessarily been | |
449 | * removed at this point. Check for that. | |
450 | */ | |
451 | mutex_lock(&dev->mode_config.fb_lock); | |
452 | if (fb->base.id) { | |
453 | /* Mark fb as reaped and drop idr ref. */ | |
454 | __drm_framebuffer_unregister(dev, fb); | |
455 | } | |
456 | mutex_unlock(&dev->mode_config.fb_lock); | |
457 | ||
f7eff60e RC |
458 | fb->funcs->destroy(fb); |
459 | } | |
460 | ||
2b677e8c DV |
461 | static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev, |
462 | uint32_t id) | |
463 | { | |
464 | struct drm_mode_object *obj = NULL; | |
465 | struct drm_framebuffer *fb; | |
466 | ||
467 | mutex_lock(&dev->mode_config.idr_mutex); | |
468 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
469 | if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id)) | |
470 | fb = NULL; | |
471 | else | |
472 | fb = obj_to_fb(obj); | |
473 | mutex_unlock(&dev->mode_config.idr_mutex); | |
474 | ||
475 | return fb; | |
476 | } | |
477 | ||
786b99ed DV |
478 | /** |
479 | * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference | |
480 | * @dev: drm device | |
481 | * @id: id of the fb object | |
482 | * | |
483 | * If successful, this grabs an additional reference to the framebuffer - | |
484 | * callers need to make sure to eventually unreference the returned framebuffer | |
c8e32cc1 | 485 | * again, using @drm_framebuffer_unreference. |
786b99ed DV |
486 | */ |
487 | struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, | |
488 | uint32_t id) | |
489 | { | |
786b99ed DV |
490 | struct drm_framebuffer *fb; |
491 | ||
492 | mutex_lock(&dev->mode_config.fb_lock); | |
2b677e8c | 493 | fb = __drm_framebuffer_lookup(dev, id); |
83f45fc3 DV |
494 | if (fb) { |
495 | if (!kref_get_unless_zero(&fb->refcount)) | |
496 | fb = NULL; | |
497 | } | |
786b99ed DV |
498 | mutex_unlock(&dev->mode_config.fb_lock); |
499 | ||
500 | return fb; | |
501 | } | |
502 | EXPORT_SYMBOL(drm_framebuffer_lookup); | |
503 | ||
f7eff60e RC |
504 | /** |
505 | * drm_framebuffer_unreference - unref a framebuffer | |
065a50ed DV |
506 | * @fb: framebuffer to unref |
507 | * | |
508 | * This functions decrements the fb's refcount and frees it if it drops to zero. | |
f7eff60e RC |
509 | */ |
510 | void drm_framebuffer_unreference(struct drm_framebuffer *fb) | |
511 | { | |
8291272a | 512 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
f7eff60e RC |
513 | kref_put(&fb->refcount, drm_framebuffer_free); |
514 | } | |
515 | EXPORT_SYMBOL(drm_framebuffer_unreference); | |
516 | ||
517 | /** | |
518 | * drm_framebuffer_reference - incr the fb refcnt | |
065a50ed | 519 | * @fb: framebuffer |
c8e32cc1 DV |
520 | * |
521 | * This functions increments the fb's refcount. | |
f7eff60e RC |
522 | */ |
523 | void drm_framebuffer_reference(struct drm_framebuffer *fb) | |
524 | { | |
8291272a | 525 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
f7eff60e RC |
526 | kref_get(&fb->refcount); |
527 | } | |
528 | EXPORT_SYMBOL(drm_framebuffer_reference); | |
529 | ||
36206361 DV |
530 | /** |
531 | * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr | |
532 | * @fb: fb to unregister | |
533 | * | |
534 | * Drivers need to call this when cleaning up driver-private framebuffers, e.g. | |
535 | * those used for fbdev. Note that the caller must hold a reference of it's own, | |
536 | * i.e. the object may not be destroyed through this call (since it'll lead to a | |
537 | * locking inversion). | |
538 | */ | |
539 | void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) | |
540 | { | |
2b677e8c DV |
541 | struct drm_device *dev = fb->dev; |
542 | ||
543 | mutex_lock(&dev->mode_config.fb_lock); | |
544 | /* Mark fb as reaped and drop idr ref. */ | |
545 | __drm_framebuffer_unregister(dev, fb); | |
546 | mutex_unlock(&dev->mode_config.fb_lock); | |
36206361 DV |
547 | } |
548 | EXPORT_SYMBOL(drm_framebuffer_unregister_private); | |
549 | ||
f453ba04 DA |
550 | /** |
551 | * drm_framebuffer_cleanup - remove a framebuffer object | |
552 | * @fb: framebuffer to remove | |
553 | * | |
c8e32cc1 DV |
554 | * Cleanup framebuffer. This function is intended to be used from the drivers |
555 | * ->destroy callback. It can also be used to clean up driver private | |
556 | * framebuffers embedded into a larger structure. | |
36206361 DV |
557 | * |
558 | * Note that this function does not remove the fb from active usuage - if it is | |
559 | * still used anywhere, hilarity can ensue since userspace could call getfb on | |
560 | * the id and get back -EINVAL. Obviously no concern at driver unload time. | |
561 | * | |
562 | * Also, the framebuffer will not be removed from the lookup idr - for | |
563 | * user-created framebuffers this will happen in in the rmfb ioctl. For | |
564 | * driver-private objects (e.g. for fbdev) drivers need to explicitly call | |
565 | * drm_framebuffer_unregister_private. | |
f453ba04 DA |
566 | */ |
567 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) | |
f7eff60e RC |
568 | { |
569 | struct drm_device *dev = fb->dev; | |
8faf6b18 | 570 | |
4b096ac1 | 571 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e RC |
572 | list_del(&fb->head); |
573 | dev->mode_config.num_fb--; | |
4b096ac1 | 574 | mutex_unlock(&dev->mode_config.fb_lock); |
f7eff60e RC |
575 | } |
576 | EXPORT_SYMBOL(drm_framebuffer_cleanup); | |
577 | ||
578 | /** | |
579 | * drm_framebuffer_remove - remove and unreference a framebuffer object | |
580 | * @fb: framebuffer to remove | |
581 | * | |
f7eff60e | 582 | * Scans all the CRTCs and planes in @dev's mode_config. If they're |
36206361 | 583 | * using @fb, removes it, setting it to NULL. Then drops the reference to the |
b62584e3 DV |
584 | * passed-in framebuffer. Might take the modeset locks. |
585 | * | |
586 | * Note that this function optimizes the cleanup away if the caller holds the | |
587 | * last reference to the framebuffer. It is also guaranteed to not take the | |
588 | * modeset locks in this case. | |
f7eff60e RC |
589 | */ |
590 | void drm_framebuffer_remove(struct drm_framebuffer *fb) | |
f453ba04 DA |
591 | { |
592 | struct drm_device *dev = fb->dev; | |
593 | struct drm_crtc *crtc; | |
8cf5c917 | 594 | struct drm_plane *plane; |
5ef5f72f DA |
595 | struct drm_mode_set set; |
596 | int ret; | |
f453ba04 | 597 | |
4b096ac1 | 598 | WARN_ON(!list_empty(&fb->filp_head)); |
8faf6b18 | 599 | |
b62584e3 DV |
600 | /* |
601 | * drm ABI mandates that we remove any deleted framebuffers from active | |
602 | * useage. But since most sane clients only remove framebuffers they no | |
603 | * longer need, try to optimize this away. | |
604 | * | |
605 | * Since we're holding a reference ourselves, observing a refcount of 1 | |
606 | * means that we're the last holder and can skip it. Also, the refcount | |
607 | * can never increase from 1 again, so we don't need any barriers or | |
608 | * locks. | |
609 | * | |
610 | * Note that userspace could try to race with use and instate a new | |
611 | * usage _after_ we've cleared all current ones. End result will be an | |
612 | * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot | |
613 | * in this manner. | |
614 | */ | |
615 | if (atomic_read(&fb->refcount.refcount) > 1) { | |
616 | drm_modeset_lock_all(dev); | |
617 | /* remove from any CRTC */ | |
6295d607 | 618 | drm_for_each_crtc(crtc, dev) { |
f4510a27 | 619 | if (crtc->primary->fb == fb) { |
b62584e3 DV |
620 | /* should turn off the crtc */ |
621 | memset(&set, 0, sizeof(struct drm_mode_set)); | |
622 | set.crtc = crtc; | |
623 | set.fb = NULL; | |
624 | ret = drm_mode_set_config_internal(&set); | |
625 | if (ret) | |
626 | DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); | |
627 | } | |
5ef5f72f | 628 | } |
f453ba04 | 629 | |
6295d607 | 630 | drm_for_each_plane(plane, dev) { |
9125e618 VS |
631 | if (plane->fb == fb) |
632 | drm_plane_force_disable(plane); | |
8cf5c917 | 633 | } |
b62584e3 | 634 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
635 | } |
636 | ||
f7eff60e | 637 | drm_framebuffer_unreference(fb); |
f453ba04 | 638 | } |
f7eff60e | 639 | EXPORT_SYMBOL(drm_framebuffer_remove); |
f453ba04 | 640 | |
51fd371b RC |
641 | DEFINE_WW_CLASS(crtc_ww_class); |
642 | ||
f453ba04 | 643 | /** |
e13161af MR |
644 | * drm_crtc_init_with_planes - Initialise a new CRTC object with |
645 | * specified primary and cursor planes. | |
f453ba04 DA |
646 | * @dev: DRM device |
647 | * @crtc: CRTC object to init | |
e13161af MR |
648 | * @primary: Primary plane for CRTC |
649 | * @cursor: Cursor plane for CRTC | |
f453ba04 DA |
650 | * @funcs: callbacks for the new CRTC |
651 | * | |
ad6f5c34 | 652 | * Inits a new object created as base part of a driver crtc object. |
6bfc56aa | 653 | * |
c8e32cc1 | 654 | * Returns: |
6bfc56aa | 655 | * Zero on success, error code on failure. |
f453ba04 | 656 | */ |
e13161af MR |
657 | int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, |
658 | struct drm_plane *primary, | |
fc1d3e44 | 659 | struct drm_plane *cursor, |
e13161af | 660 | const struct drm_crtc_funcs *funcs) |
f453ba04 | 661 | { |
51fd371b | 662 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
663 | int ret; |
664 | ||
522cf91f BG |
665 | WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY); |
666 | WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR); | |
667 | ||
f453ba04 DA |
668 | crtc->dev = dev; |
669 | crtc->funcs = funcs; | |
7c80e128 | 670 | crtc->invert_dimensions = false; |
f453ba04 | 671 | |
51fd371b | 672 | drm_modeset_lock_init(&crtc->mutex); |
6bfc56aa VS |
673 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); |
674 | if (ret) | |
baf698b0 | 675 | return ret; |
f453ba04 | 676 | |
bffd9de0 PZ |
677 | crtc->base.properties = &crtc->properties; |
678 | ||
51fd371b RC |
679 | list_add_tail(&crtc->head, &config->crtc_list); |
680 | config->num_crtc++; | |
6bfc56aa | 681 | |
e13161af | 682 | crtc->primary = primary; |
fc1d3e44 | 683 | crtc->cursor = cursor; |
e13161af MR |
684 | if (primary) |
685 | primary->possible_crtcs = 1 << drm_crtc_index(crtc); | |
fc1d3e44 MR |
686 | if (cursor) |
687 | cursor->possible_crtcs = 1 << drm_crtc_index(crtc); | |
e13161af | 688 | |
eab3bbef DV |
689 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
690 | drm_object_attach_property(&crtc->base, config->prop_active, 0); | |
955f3c33 | 691 | drm_object_attach_property(&crtc->base, config->prop_mode_id, 0); |
eab3bbef DV |
692 | } |
693 | ||
baf698b0 | 694 | return 0; |
f453ba04 | 695 | } |
e13161af | 696 | EXPORT_SYMBOL(drm_crtc_init_with_planes); |
f453ba04 DA |
697 | |
698 | /** | |
ad6f5c34 | 699 | * drm_crtc_cleanup - Clean up the core crtc usage |
f453ba04 DA |
700 | * @crtc: CRTC to cleanup |
701 | * | |
ad6f5c34 VS |
702 | * This function cleans up @crtc and removes it from the DRM mode setting |
703 | * core. Note that the function does *not* free the crtc structure itself, | |
704 | * this is the responsibility of the caller. | |
f453ba04 DA |
705 | */ |
706 | void drm_crtc_cleanup(struct drm_crtc *crtc) | |
707 | { | |
708 | struct drm_device *dev = crtc->dev; | |
709 | ||
9e1c156f SK |
710 | kfree(crtc->gamma_store); |
711 | crtc->gamma_store = NULL; | |
f453ba04 | 712 | |
51fd371b RC |
713 | drm_modeset_lock_fini(&crtc->mutex); |
714 | ||
f453ba04 DA |
715 | drm_mode_object_put(dev, &crtc->base); |
716 | list_del(&crtc->head); | |
717 | dev->mode_config.num_crtc--; | |
3009c037 TR |
718 | |
719 | WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); | |
720 | if (crtc->state && crtc->funcs->atomic_destroy_state) | |
721 | crtc->funcs->atomic_destroy_state(crtc, crtc->state); | |
a18c0af1 TR |
722 | |
723 | memset(crtc, 0, sizeof(*crtc)); | |
f453ba04 DA |
724 | } |
725 | EXPORT_SYMBOL(drm_crtc_cleanup); | |
726 | ||
db5f7a6e RK |
727 | /** |
728 | * drm_crtc_index - find the index of a registered CRTC | |
729 | * @crtc: CRTC to find index for | |
730 | * | |
731 | * Given a registered CRTC, return the index of that CRTC within a DRM | |
732 | * device's list of CRTCs. | |
733 | */ | |
734 | unsigned int drm_crtc_index(struct drm_crtc *crtc) | |
735 | { | |
736 | unsigned int index = 0; | |
737 | struct drm_crtc *tmp; | |
738 | ||
e4f62546 | 739 | drm_for_each_crtc(tmp, crtc->dev) { |
db5f7a6e RK |
740 | if (tmp == crtc) |
741 | return index; | |
742 | ||
743 | index++; | |
744 | } | |
745 | ||
746 | BUG(); | |
747 | } | |
748 | EXPORT_SYMBOL(drm_crtc_index); | |
749 | ||
86f422d5 | 750 | /* |
f453ba04 DA |
751 | * drm_mode_remove - remove and free a mode |
752 | * @connector: connector list to modify | |
753 | * @mode: mode to remove | |
754 | * | |
f453ba04 DA |
755 | * Remove @mode from @connector's mode list, then free it. |
756 | */ | |
86f422d5 LD |
757 | static void drm_mode_remove(struct drm_connector *connector, |
758 | struct drm_display_mode *mode) | |
f453ba04 DA |
759 | { |
760 | list_del(&mode->head); | |
554f1d78 | 761 | drm_mode_destroy(connector->dev, mode); |
f453ba04 | 762 | } |
f453ba04 | 763 | |
b5571e9d BB |
764 | /** |
765 | * drm_display_info_set_bus_formats - set the supported bus formats | |
766 | * @info: display info to store bus formats in | |
e37bfa1a BB |
767 | * @formats: array containing the supported bus formats |
768 | * @num_formats: the number of entries in the fmts array | |
b5571e9d BB |
769 | * |
770 | * Store the supported bus formats in display info structure. | |
771 | * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for | |
772 | * a full list of available formats. | |
773 | */ | |
774 | int drm_display_info_set_bus_formats(struct drm_display_info *info, | |
775 | const u32 *formats, | |
776 | unsigned int num_formats) | |
777 | { | |
778 | u32 *fmts = NULL; | |
779 | ||
780 | if (!formats && num_formats) | |
781 | return -EINVAL; | |
782 | ||
783 | if (formats && num_formats) { | |
784 | fmts = kmemdup(formats, sizeof(*formats) * num_formats, | |
785 | GFP_KERNEL); | |
944579c5 | 786 | if (!fmts) |
b5571e9d BB |
787 | return -ENOMEM; |
788 | } | |
789 | ||
790 | kfree(info->bus_formats); | |
791 | info->bus_formats = fmts; | |
792 | info->num_bus_formats = num_formats; | |
793 | ||
794 | return 0; | |
795 | } | |
796 | EXPORT_SYMBOL(drm_display_info_set_bus_formats); | |
797 | ||
eaf99c74 CW |
798 | /** |
799 | * drm_connector_get_cmdline_mode - reads the user's cmdline mode | |
800 | * @connector: connector to quwery | |
eaf99c74 CW |
801 | * |
802 | * The kernel supports per-connector configration of its consoles through | |
803 | * use of the video= parameter. This function parses that option and | |
804 | * extracts the user's specified mode (or enable/disable status) for a | |
805 | * particular connector. This is typically only used during the early fbdev | |
806 | * setup. | |
807 | */ | |
808 | static void drm_connector_get_cmdline_mode(struct drm_connector *connector) | |
809 | { | |
810 | struct drm_cmdline_mode *mode = &connector->cmdline_mode; | |
811 | char *option = NULL; | |
812 | ||
813 | if (fb_get_options(connector->name, &option)) | |
814 | return; | |
815 | ||
816 | if (!drm_mode_parse_command_line_for_connector(option, | |
817 | connector, | |
818 | mode)) | |
819 | return; | |
820 | ||
821 | if (mode->force) { | |
822 | const char *s; | |
823 | ||
824 | switch (mode->force) { | |
825 | case DRM_FORCE_OFF: | |
826 | s = "OFF"; | |
827 | break; | |
828 | case DRM_FORCE_ON_DIGITAL: | |
829 | s = "ON - dig"; | |
830 | break; | |
831 | default: | |
832 | case DRM_FORCE_ON: | |
833 | s = "ON"; | |
834 | break; | |
835 | } | |
836 | ||
837 | DRM_INFO("forcing %s connector %s\n", connector->name, s); | |
838 | connector->force = mode->force; | |
839 | } | |
840 | ||
841 | DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", | |
842 | connector->name, | |
843 | mode->xres, mode->yres, | |
844 | mode->refresh_specified ? mode->refresh : 60, | |
845 | mode->rb ? " reduced blanking" : "", | |
846 | mode->margins ? " with margins" : "", | |
847 | mode->interlace ? " interlaced" : ""); | |
848 | } | |
849 | ||
f453ba04 DA |
850 | /** |
851 | * drm_connector_init - Init a preallocated connector | |
852 | * @dev: DRM device | |
853 | * @connector: the connector to init | |
854 | * @funcs: callbacks for this connector | |
065a50ed | 855 | * @connector_type: user visible type of the connector |
f453ba04 | 856 | * |
f453ba04 DA |
857 | * Initialises a preallocated connector. Connectors should be |
858 | * subclassed as part of driver connector objects. | |
6bfc56aa | 859 | * |
c8e32cc1 | 860 | * Returns: |
6bfc56aa | 861 | * Zero on success, error code on failure. |
f453ba04 | 862 | */ |
6bfc56aa VS |
863 | int drm_connector_init(struct drm_device *dev, |
864 | struct drm_connector *connector, | |
865 | const struct drm_connector_funcs *funcs, | |
866 | int connector_type) | |
f453ba04 | 867 | { |
ae16c597 | 868 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa | 869 | int ret; |
b21e3afe IM |
870 | struct ida *connector_ida = |
871 | &drm_connector_enum_list[connector_type].ida; | |
6bfc56aa | 872 | |
84849903 | 873 | drm_modeset_lock_all(dev); |
f453ba04 | 874 | |
2ee39452 | 875 | ret = drm_mode_object_get_reg(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR, false); |
6bfc56aa | 876 | if (ret) |
2abdd313 | 877 | goto out_unlock; |
6bfc56aa | 878 | |
7e3bdf4a | 879 | connector->base.properties = &connector->properties; |
f453ba04 DA |
880 | connector->dev = dev; |
881 | connector->funcs = funcs; | |
f453ba04 DA |
882 | connector->connector_type = connector_type; |
883 | connector->connector_type_id = | |
b21e3afe IM |
884 | ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); |
885 | if (connector->connector_type_id < 0) { | |
886 | ret = connector->connector_type_id; | |
2abdd313 | 887 | goto out_put; |
b21e3afe | 888 | } |
2abdd313 JN |
889 | connector->name = |
890 | kasprintf(GFP_KERNEL, "%s-%d", | |
891 | drm_connector_enum_list[connector_type].name, | |
892 | connector->connector_type_id); | |
893 | if (!connector->name) { | |
894 | ret = -ENOMEM; | |
895 | goto out_put; | |
896 | } | |
897 | ||
f453ba04 DA |
898 | INIT_LIST_HEAD(&connector->probed_modes); |
899 | INIT_LIST_HEAD(&connector->modes); | |
900 | connector->edid_blob_ptr = NULL; | |
5e2cb2f6 | 901 | connector->status = connector_status_unknown; |
f453ba04 | 902 | |
eaf99c74 CW |
903 | drm_connector_get_cmdline_mode(connector); |
904 | ||
c7eb76f4 DV |
905 | /* We should add connectors at the end to avoid upsetting the connector |
906 | * index too much. */ | |
ae16c597 RC |
907 | list_add_tail(&connector->head, &config->connector_list); |
908 | config->num_connector++; | |
f453ba04 | 909 | |
a7331e5c | 910 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) |
58495563 | 911 | drm_object_attach_property(&connector->base, |
ae16c597 | 912 | config->edid_property, |
a7331e5c | 913 | 0); |
f453ba04 | 914 | |
58495563 | 915 | drm_object_attach_property(&connector->base, |
ae16c597 RC |
916 | config->dpms_property, 0); |
917 | ||
918 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { | |
919 | drm_object_attach_property(&connector->base, config->prop_crtc_id, 0); | |
920 | } | |
f453ba04 | 921 | |
30f65707 TW |
922 | connector->debugfs_entry = NULL; |
923 | ||
2abdd313 JN |
924 | out_put: |
925 | if (ret) | |
926 | drm_mode_object_put(dev, &connector->base); | |
927 | ||
928 | out_unlock: | |
84849903 | 929 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
930 | |
931 | return ret; | |
f453ba04 DA |
932 | } |
933 | EXPORT_SYMBOL(drm_connector_init); | |
934 | ||
935 | /** | |
936 | * drm_connector_cleanup - cleans up an initialised connector | |
937 | * @connector: connector to cleanup | |
938 | * | |
f453ba04 DA |
939 | * Cleans up the connector but doesn't free the object. |
940 | */ | |
941 | void drm_connector_cleanup(struct drm_connector *connector) | |
942 | { | |
943 | struct drm_device *dev = connector->dev; | |
944 | struct drm_display_mode *mode, *t; | |
945 | ||
40d9b043 DA |
946 | if (connector->tile_group) { |
947 | drm_mode_put_tile_group(dev, connector->tile_group); | |
948 | connector->tile_group = NULL; | |
949 | } | |
950 | ||
f453ba04 DA |
951 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) |
952 | drm_mode_remove(connector, mode); | |
953 | ||
954 | list_for_each_entry_safe(mode, t, &connector->modes, head) | |
955 | drm_mode_remove(connector, mode); | |
956 | ||
b21e3afe IM |
957 | ida_remove(&drm_connector_enum_list[connector->connector_type].ida, |
958 | connector->connector_type_id); | |
959 | ||
b5571e9d | 960 | kfree(connector->display_info.bus_formats); |
f453ba04 | 961 | drm_mode_object_put(dev, &connector->base); |
2abdd313 JN |
962 | kfree(connector->name); |
963 | connector->name = NULL; | |
f453ba04 | 964 | list_del(&connector->head); |
6380c509 | 965 | dev->mode_config.num_connector--; |
3009c037 TR |
966 | |
967 | WARN_ON(connector->state && !connector->funcs->atomic_destroy_state); | |
968 | if (connector->state && connector->funcs->atomic_destroy_state) | |
969 | connector->funcs->atomic_destroy_state(connector, | |
970 | connector->state); | |
a18c0af1 TR |
971 | |
972 | memset(connector, 0, sizeof(*connector)); | |
f453ba04 DA |
973 | } |
974 | EXPORT_SYMBOL(drm_connector_cleanup); | |
975 | ||
10f637bf DV |
976 | /** |
977 | * drm_connector_index - find the index of a registered connector | |
978 | * @connector: connector to find index for | |
979 | * | |
980 | * Given a registered connector, return the index of that connector within a DRM | |
981 | * device's list of connectors. | |
982 | */ | |
983 | unsigned int drm_connector_index(struct drm_connector *connector) | |
984 | { | |
985 | unsigned int index = 0; | |
986 | struct drm_connector *tmp; | |
c7eb76f4 DV |
987 | struct drm_mode_config *config = &connector->dev->mode_config; |
988 | ||
989 | WARN_ON(!drm_modeset_is_locked(&config->connection_mutex)); | |
10f637bf | 990 | |
9a9f5ce8 | 991 | drm_for_each_connector(tmp, connector->dev) { |
10f637bf DV |
992 | if (tmp == connector) |
993 | return index; | |
994 | ||
995 | index++; | |
996 | } | |
997 | ||
998 | BUG(); | |
999 | } | |
1000 | EXPORT_SYMBOL(drm_connector_index); | |
1001 | ||
34ea3d38 TW |
1002 | /** |
1003 | * drm_connector_register - register a connector | |
1004 | * @connector: the connector to register | |
1005 | * | |
1006 | * Register userspace interfaces for a connector | |
1007 | * | |
1008 | * Returns: | |
1009 | * Zero on success, error code on failure. | |
1010 | */ | |
1011 | int drm_connector_register(struct drm_connector *connector) | |
1012 | { | |
30f65707 TW |
1013 | int ret; |
1014 | ||
2ee39452 DA |
1015 | drm_mode_object_register(connector->dev, &connector->base); |
1016 | ||
30f65707 TW |
1017 | ret = drm_sysfs_connector_add(connector); |
1018 | if (ret) | |
1019 | return ret; | |
1020 | ||
1021 | ret = drm_debugfs_connector_add(connector); | |
1022 | if (ret) { | |
1023 | drm_sysfs_connector_remove(connector); | |
1024 | return ret; | |
1025 | } | |
1026 | ||
1027 | return 0; | |
34ea3d38 TW |
1028 | } |
1029 | EXPORT_SYMBOL(drm_connector_register); | |
1030 | ||
1031 | /** | |
1032 | * drm_connector_unregister - unregister a connector | |
1033 | * @connector: the connector to unregister | |
1034 | * | |
1035 | * Unregister userspace interfaces for a connector | |
1036 | */ | |
1037 | void drm_connector_unregister(struct drm_connector *connector) | |
1038 | { | |
1039 | drm_sysfs_connector_remove(connector); | |
30f65707 | 1040 | drm_debugfs_connector_remove(connector); |
34ea3d38 TW |
1041 | } |
1042 | EXPORT_SYMBOL(drm_connector_unregister); | |
1043 | ||
1044 | ||
c8e32cc1 DV |
1045 | /** |
1046 | * drm_connector_unplug_all - unregister connector userspace interfaces | |
1047 | * @dev: drm device | |
1048 | * | |
1049 | * This function unregisters all connector userspace interfaces in sysfs. Should | |
1050 | * be call when the device is disconnected, e.g. from an usb driver's | |
1051 | * ->disconnect callback. | |
1052 | */ | |
cbc7e221 DA |
1053 | void drm_connector_unplug_all(struct drm_device *dev) |
1054 | { | |
1055 | struct drm_connector *connector; | |
1056 | ||
9a9f5ce8 | 1057 | /* FIXME: taking the mode config mutex ends up in a clash with sysfs */ |
cbc7e221 | 1058 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) |
34ea3d38 | 1059 | drm_connector_unregister(connector); |
cbc7e221 DA |
1060 | |
1061 | } | |
1062 | EXPORT_SYMBOL(drm_connector_unplug_all); | |
1063 | ||
c8e32cc1 DV |
1064 | /** |
1065 | * drm_encoder_init - Init a preallocated encoder | |
1066 | * @dev: drm device | |
1067 | * @encoder: the encoder to init | |
1068 | * @funcs: callbacks for this encoder | |
1069 | * @encoder_type: user visible type of the encoder | |
1070 | * | |
1071 | * Initialises a preallocated encoder. Encoder should be | |
1072 | * subclassed as part of driver encoder objects. | |
1073 | * | |
1074 | * Returns: | |
1075 | * Zero on success, error code on failure. | |
1076 | */ | |
6bfc56aa | 1077 | int drm_encoder_init(struct drm_device *dev, |
cbc7e221 DA |
1078 | struct drm_encoder *encoder, |
1079 | const struct drm_encoder_funcs *funcs, | |
1080 | int encoder_type) | |
f453ba04 | 1081 | { |
6bfc56aa VS |
1082 | int ret; |
1083 | ||
84849903 | 1084 | drm_modeset_lock_all(dev); |
f453ba04 | 1085 | |
6bfc56aa VS |
1086 | ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
1087 | if (ret) | |
e5748946 | 1088 | goto out_unlock; |
f453ba04 | 1089 | |
6bfc56aa | 1090 | encoder->dev = dev; |
f453ba04 DA |
1091 | encoder->encoder_type = encoder_type; |
1092 | encoder->funcs = funcs; | |
e5748946 JN |
1093 | encoder->name = kasprintf(GFP_KERNEL, "%s-%d", |
1094 | drm_encoder_enum_list[encoder_type].name, | |
1095 | encoder->base.id); | |
1096 | if (!encoder->name) { | |
1097 | ret = -ENOMEM; | |
1098 | goto out_put; | |
1099 | } | |
f453ba04 DA |
1100 | |
1101 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); | |
1102 | dev->mode_config.num_encoder++; | |
1103 | ||
e5748946 JN |
1104 | out_put: |
1105 | if (ret) | |
1106 | drm_mode_object_put(dev, &encoder->base); | |
1107 | ||
1108 | out_unlock: | |
84849903 | 1109 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
1110 | |
1111 | return ret; | |
f453ba04 DA |
1112 | } |
1113 | EXPORT_SYMBOL(drm_encoder_init); | |
1114 | ||
c8e32cc1 DV |
1115 | /** |
1116 | * drm_encoder_cleanup - cleans up an initialised encoder | |
1117 | * @encoder: encoder to cleanup | |
1118 | * | |
1119 | * Cleans up the encoder but doesn't free the object. | |
1120 | */ | |
f453ba04 DA |
1121 | void drm_encoder_cleanup(struct drm_encoder *encoder) |
1122 | { | |
1123 | struct drm_device *dev = encoder->dev; | |
4dfd909f | 1124 | |
84849903 | 1125 | drm_modeset_lock_all(dev); |
f453ba04 | 1126 | drm_mode_object_put(dev, &encoder->base); |
e5748946 | 1127 | kfree(encoder->name); |
f453ba04 | 1128 | list_del(&encoder->head); |
6380c509 | 1129 | dev->mode_config.num_encoder--; |
84849903 | 1130 | drm_modeset_unlock_all(dev); |
a18c0af1 TR |
1131 | |
1132 | memset(encoder, 0, sizeof(*encoder)); | |
f453ba04 DA |
1133 | } |
1134 | EXPORT_SYMBOL(drm_encoder_cleanup); | |
1135 | ||
35f2c3ae | 1136 | /** |
dc415ff9 | 1137 | * drm_universal_plane_init - Initialize a new universal plane object |
35f2c3ae VS |
1138 | * @dev: DRM device |
1139 | * @plane: plane object to init | |
1140 | * @possible_crtcs: bitmask of possible CRTCs | |
1141 | * @funcs: callbacks for the new plane | |
1142 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1143 | * @format_count: number of elements in @formats | |
dc415ff9 | 1144 | * @type: type of plane (overlay, primary, cursor) |
35f2c3ae | 1145 | * |
dc415ff9 | 1146 | * Initializes a plane object of type @type. |
35f2c3ae | 1147 | * |
c8e32cc1 | 1148 | * Returns: |
35f2c3ae VS |
1149 | * Zero on success, error code on failure. |
1150 | */ | |
dc415ff9 MR |
1151 | int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, |
1152 | unsigned long possible_crtcs, | |
1153 | const struct drm_plane_funcs *funcs, | |
45e3743a | 1154 | const uint32_t *formats, unsigned int format_count, |
dc415ff9 | 1155 | enum drm_plane_type type) |
8cf5c917 | 1156 | { |
6b4959f4 | 1157 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
1158 | int ret; |
1159 | ||
6bfc56aa VS |
1160 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
1161 | if (ret) | |
baf698b0 | 1162 | return ret; |
6bfc56aa | 1163 | |
4d02e2de DV |
1164 | drm_modeset_lock_init(&plane->mutex); |
1165 | ||
4d93914a | 1166 | plane->base.properties = &plane->properties; |
8cf5c917 | 1167 | plane->dev = dev; |
8cf5c917 | 1168 | plane->funcs = funcs; |
2f6c5389 TR |
1169 | plane->format_types = kmalloc_array(format_count, sizeof(uint32_t), |
1170 | GFP_KERNEL); | |
8cf5c917 JB |
1171 | if (!plane->format_types) { |
1172 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); | |
1173 | drm_mode_object_put(dev, &plane->base); | |
baf698b0 | 1174 | return -ENOMEM; |
8cf5c917 JB |
1175 | } |
1176 | ||
308e5bcb | 1177 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
8cf5c917 JB |
1178 | plane->format_count = format_count; |
1179 | plane->possible_crtcs = possible_crtcs; | |
dc415ff9 | 1180 | plane->type = type; |
8cf5c917 | 1181 | |
6b4959f4 RC |
1182 | list_add_tail(&plane->head, &config->plane_list); |
1183 | config->num_total_plane++; | |
dc415ff9 | 1184 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) |
6b4959f4 | 1185 | config->num_overlay_plane++; |
8cf5c917 | 1186 | |
9922ab5a | 1187 | drm_object_attach_property(&plane->base, |
6b4959f4 | 1188 | config->plane_type_property, |
9922ab5a RC |
1189 | plane->type); |
1190 | ||
6b4959f4 RC |
1191 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
1192 | drm_object_attach_property(&plane->base, config->prop_fb_id, 0); | |
1193 | drm_object_attach_property(&plane->base, config->prop_crtc_id, 0); | |
1194 | drm_object_attach_property(&plane->base, config->prop_crtc_x, 0); | |
1195 | drm_object_attach_property(&plane->base, config->prop_crtc_y, 0); | |
1196 | drm_object_attach_property(&plane->base, config->prop_crtc_w, 0); | |
1197 | drm_object_attach_property(&plane->base, config->prop_crtc_h, 0); | |
1198 | drm_object_attach_property(&plane->base, config->prop_src_x, 0); | |
1199 | drm_object_attach_property(&plane->base, config->prop_src_y, 0); | |
1200 | drm_object_attach_property(&plane->base, config->prop_src_w, 0); | |
1201 | drm_object_attach_property(&plane->base, config->prop_src_h, 0); | |
1202 | } | |
1203 | ||
baf698b0 | 1204 | return 0; |
8cf5c917 | 1205 | } |
dc415ff9 MR |
1206 | EXPORT_SYMBOL(drm_universal_plane_init); |
1207 | ||
1208 | /** | |
1209 | * drm_plane_init - Initialize a legacy plane | |
1210 | * @dev: DRM device | |
1211 | * @plane: plane object to init | |
1212 | * @possible_crtcs: bitmask of possible CRTCs | |
1213 | * @funcs: callbacks for the new plane | |
1214 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1215 | * @format_count: number of elements in @formats | |
1216 | * @is_primary: plane type (primary vs overlay) | |
1217 | * | |
1218 | * Legacy API to initialize a DRM plane. | |
1219 | * | |
1220 | * New drivers should call drm_universal_plane_init() instead. | |
1221 | * | |
1222 | * Returns: | |
1223 | * Zero on success, error code on failure. | |
1224 | */ | |
1225 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, | |
1226 | unsigned long possible_crtcs, | |
1227 | const struct drm_plane_funcs *funcs, | |
45e3743a | 1228 | const uint32_t *formats, unsigned int format_count, |
dc415ff9 MR |
1229 | bool is_primary) |
1230 | { | |
1231 | enum drm_plane_type type; | |
1232 | ||
1233 | type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; | |
1234 | return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, | |
1235 | formats, format_count, type); | |
1236 | } | |
8cf5c917 JB |
1237 | EXPORT_SYMBOL(drm_plane_init); |
1238 | ||
35f2c3ae VS |
1239 | /** |
1240 | * drm_plane_cleanup - Clean up the core plane usage | |
1241 | * @plane: plane to cleanup | |
1242 | * | |
1243 | * This function cleans up @plane and removes it from the DRM mode setting | |
1244 | * core. Note that the function does *not* free the plane structure itself, | |
1245 | * this is the responsibility of the caller. | |
1246 | */ | |
8cf5c917 JB |
1247 | void drm_plane_cleanup(struct drm_plane *plane) |
1248 | { | |
1249 | struct drm_device *dev = plane->dev; | |
1250 | ||
84849903 | 1251 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1252 | kfree(plane->format_types); |
1253 | drm_mode_object_put(dev, &plane->base); | |
dc415ff9 MR |
1254 | |
1255 | BUG_ON(list_empty(&plane->head)); | |
1256 | ||
1257 | list_del(&plane->head); | |
1258 | dev->mode_config.num_total_plane--; | |
1259 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) | |
1260 | dev->mode_config.num_overlay_plane--; | |
84849903 | 1261 | drm_modeset_unlock_all(dev); |
3009c037 TR |
1262 | |
1263 | WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); | |
1264 | if (plane->state && plane->funcs->atomic_destroy_state) | |
1265 | plane->funcs->atomic_destroy_state(plane, plane->state); | |
a18c0af1 TR |
1266 | |
1267 | memset(plane, 0, sizeof(*plane)); | |
8cf5c917 JB |
1268 | } |
1269 | EXPORT_SYMBOL(drm_plane_cleanup); | |
1270 | ||
10f637bf DV |
1271 | /** |
1272 | * drm_plane_index - find the index of a registered plane | |
1273 | * @plane: plane to find index for | |
1274 | * | |
1275 | * Given a registered plane, return the index of that CRTC within a DRM | |
1276 | * device's list of planes. | |
1277 | */ | |
1278 | unsigned int drm_plane_index(struct drm_plane *plane) | |
1279 | { | |
1280 | unsigned int index = 0; | |
1281 | struct drm_plane *tmp; | |
1282 | ||
e4f62546 | 1283 | drm_for_each_plane(tmp, plane->dev) { |
10f637bf DV |
1284 | if (tmp == plane) |
1285 | return index; | |
1286 | ||
1287 | index++; | |
1288 | } | |
1289 | ||
1290 | BUG(); | |
1291 | } | |
1292 | EXPORT_SYMBOL(drm_plane_index); | |
1293 | ||
f81338a5 CK |
1294 | /** |
1295 | * drm_plane_from_index - find the registered plane at an index | |
1296 | * @dev: DRM device | |
1297 | * @idx: index of registered plane to find for | |
1298 | * | |
1299 | * Given a plane index, return the registered plane from DRM device's | |
1300 | * list of planes with matching index. | |
1301 | */ | |
1302 | struct drm_plane * | |
1303 | drm_plane_from_index(struct drm_device *dev, int idx) | |
1304 | { | |
1305 | struct drm_plane *plane; | |
1306 | unsigned int i = 0; | |
1307 | ||
6295d607 | 1308 | drm_for_each_plane(plane, dev) { |
f81338a5 CK |
1309 | if (i == idx) |
1310 | return plane; | |
1311 | i++; | |
1312 | } | |
1313 | return NULL; | |
1314 | } | |
1315 | EXPORT_SYMBOL(drm_plane_from_index); | |
1316 | ||
35f2c3ae VS |
1317 | /** |
1318 | * drm_plane_force_disable - Forcibly disable a plane | |
1319 | * @plane: plane to disable | |
1320 | * | |
1321 | * Forces the plane to be disabled. | |
1322 | * | |
1323 | * Used when the plane's current framebuffer is destroyed, | |
1324 | * and when restoring fbdev mode. | |
1325 | */ | |
9125e618 VS |
1326 | void drm_plane_force_disable(struct drm_plane *plane) |
1327 | { | |
1328 | int ret; | |
1329 | ||
3d30a59b | 1330 | if (!plane->fb) |
9125e618 VS |
1331 | return; |
1332 | ||
3d30a59b | 1333 | plane->old_fb = plane->fb; |
9125e618 | 1334 | ret = plane->funcs->disable_plane(plane); |
731cce48 | 1335 | if (ret) { |
9125e618 | 1336 | DRM_ERROR("failed to disable plane with busy fb\n"); |
3d30a59b | 1337 | plane->old_fb = NULL; |
731cce48 DV |
1338 | return; |
1339 | } | |
9125e618 | 1340 | /* disconnect the plane from the fb and crtc: */ |
220dd2bc | 1341 | drm_framebuffer_unreference(plane->old_fb); |
3d30a59b | 1342 | plane->old_fb = NULL; |
9125e618 VS |
1343 | plane->fb = NULL; |
1344 | plane->crtc = NULL; | |
1345 | } | |
1346 | EXPORT_SYMBOL(drm_plane_force_disable); | |
1347 | ||
6b4959f4 | 1348 | static int drm_mode_create_standard_properties(struct drm_device *dev) |
f453ba04 | 1349 | { |
356af0e1 | 1350 | struct drm_property *prop; |
f453ba04 DA |
1351 | |
1352 | /* | |
1353 | * Standard properties (apply to all connectors) | |
1354 | */ | |
356af0e1 | 1355 | prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | |
f453ba04 DA |
1356 | DRM_MODE_PROP_IMMUTABLE, |
1357 | "EDID", 0); | |
356af0e1 RC |
1358 | if (!prop) |
1359 | return -ENOMEM; | |
1360 | dev->mode_config.edid_property = prop; | |
f453ba04 | 1361 | |
356af0e1 | 1362 | prop = drm_property_create_enum(dev, 0, |
4a67d391 SH |
1363 | "DPMS", drm_dpms_enum_list, |
1364 | ARRAY_SIZE(drm_dpms_enum_list)); | |
356af0e1 RC |
1365 | if (!prop) |
1366 | return -ENOMEM; | |
1367 | dev->mode_config.dpms_property = prop; | |
6f134d7b | 1368 | |
356af0e1 RC |
1369 | prop = drm_property_create(dev, |
1370 | DRM_MODE_PROP_BLOB | | |
1371 | DRM_MODE_PROP_IMMUTABLE, | |
1372 | "PATH", 0); | |
1373 | if (!prop) | |
1374 | return -ENOMEM; | |
1375 | dev->mode_config.path_property = prop; | |
f453ba04 | 1376 | |
356af0e1 RC |
1377 | prop = drm_property_create(dev, |
1378 | DRM_MODE_PROP_BLOB | | |
1379 | DRM_MODE_PROP_IMMUTABLE, | |
1380 | "TILE", 0); | |
1381 | if (!prop) | |
1382 | return -ENOMEM; | |
1383 | dev->mode_config.tile_property = prop; | |
9922ab5a | 1384 | |
6b4959f4 | 1385 | prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
9922ab5a RC |
1386 | "type", drm_plane_type_enum_list, |
1387 | ARRAY_SIZE(drm_plane_type_enum_list)); | |
6b4959f4 RC |
1388 | if (!prop) |
1389 | return -ENOMEM; | |
1390 | dev->mode_config.plane_type_property = prop; | |
1391 | ||
1392 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1393 | "SRC_X", 0, UINT_MAX); | |
1394 | if (!prop) | |
1395 | return -ENOMEM; | |
1396 | dev->mode_config.prop_src_x = prop; | |
1397 | ||
1398 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1399 | "SRC_Y", 0, UINT_MAX); | |
1400 | if (!prop) | |
1401 | return -ENOMEM; | |
1402 | dev->mode_config.prop_src_y = prop; | |
1403 | ||
1404 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1405 | "SRC_W", 0, UINT_MAX); | |
1406 | if (!prop) | |
1407 | return -ENOMEM; | |
1408 | dev->mode_config.prop_src_w = prop; | |
1409 | ||
1410 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1411 | "SRC_H", 0, UINT_MAX); | |
1412 | if (!prop) | |
1413 | return -ENOMEM; | |
1414 | dev->mode_config.prop_src_h = prop; | |
1415 | ||
1416 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
1417 | "CRTC_X", INT_MIN, INT_MAX); | |
1418 | if (!prop) | |
1419 | return -ENOMEM; | |
1420 | dev->mode_config.prop_crtc_x = prop; | |
1421 | ||
1422 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
1423 | "CRTC_Y", INT_MIN, INT_MAX); | |
1424 | if (!prop) | |
1425 | return -ENOMEM; | |
1426 | dev->mode_config.prop_crtc_y = prop; | |
1427 | ||
1428 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1429 | "CRTC_W", 0, INT_MAX); | |
1430 | if (!prop) | |
1431 | return -ENOMEM; | |
1432 | dev->mode_config.prop_crtc_w = prop; | |
1433 | ||
1434 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1435 | "CRTC_H", 0, INT_MAX); | |
1436 | if (!prop) | |
1437 | return -ENOMEM; | |
1438 | dev->mode_config.prop_crtc_h = prop; | |
1439 | ||
1440 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, | |
1441 | "FB_ID", DRM_MODE_OBJECT_FB); | |
1442 | if (!prop) | |
1443 | return -ENOMEM; | |
1444 | dev->mode_config.prop_fb_id = prop; | |
1445 | ||
1446 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, | |
1447 | "CRTC_ID", DRM_MODE_OBJECT_CRTC); | |
1448 | if (!prop) | |
1449 | return -ENOMEM; | |
1450 | dev->mode_config.prop_crtc_id = prop; | |
9922ab5a | 1451 | |
eab3bbef DV |
1452 | prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, |
1453 | "ACTIVE"); | |
1454 | if (!prop) | |
1455 | return -ENOMEM; | |
1456 | dev->mode_config.prop_active = prop; | |
1457 | ||
955f3c33 DS |
1458 | prop = drm_property_create(dev, |
1459 | DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB, | |
1460 | "MODE_ID", 0); | |
1461 | if (!prop) | |
1462 | return -ENOMEM; | |
1463 | dev->mode_config.prop_mode_id = prop; | |
1464 | ||
9922ab5a RC |
1465 | return 0; |
1466 | } | |
1467 | ||
f453ba04 DA |
1468 | /** |
1469 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties | |
1470 | * @dev: DRM device | |
1471 | * | |
1472 | * Called by a driver the first time a DVI-I connector is made. | |
1473 | */ | |
1474 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) | |
1475 | { | |
1476 | struct drm_property *dvi_i_selector; | |
1477 | struct drm_property *dvi_i_subconnector; | |
f453ba04 DA |
1478 | |
1479 | if (dev->mode_config.dvi_i_select_subconnector_property) | |
1480 | return 0; | |
1481 | ||
1482 | dvi_i_selector = | |
4a67d391 | 1483 | drm_property_create_enum(dev, 0, |
f453ba04 | 1484 | "select subconnector", |
4a67d391 | 1485 | drm_dvi_i_select_enum_list, |
f453ba04 | 1486 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
f453ba04 DA |
1487 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
1488 | ||
4a67d391 | 1489 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
f453ba04 | 1490 | "subconnector", |
4a67d391 | 1491 | drm_dvi_i_subconnector_enum_list, |
f453ba04 | 1492 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
f453ba04 DA |
1493 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
1494 | ||
1495 | return 0; | |
1496 | } | |
1497 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); | |
1498 | ||
1499 | /** | |
1500 | * drm_create_tv_properties - create TV specific connector properties | |
1501 | * @dev: DRM device | |
1502 | * @num_modes: number of different TV formats (modes) supported | |
1503 | * @modes: array of pointers to strings containing name of each format | |
1504 | * | |
1505 | * Called by a driver's TV initialization routine, this function creates | |
1506 | * the TV specific connector properties for a given device. Caller is | |
1507 | * responsible for allocating a list of format names and passing them to | |
1508 | * this routine. | |
1509 | */ | |
2f763312 TR |
1510 | int drm_mode_create_tv_properties(struct drm_device *dev, |
1511 | unsigned int num_modes, | |
f453ba04 DA |
1512 | char *modes[]) |
1513 | { | |
1514 | struct drm_property *tv_selector; | |
1515 | struct drm_property *tv_subconnector; | |
2f763312 | 1516 | unsigned int i; |
f453ba04 DA |
1517 | |
1518 | if (dev->mode_config.tv_select_subconnector_property) | |
1519 | return 0; | |
1520 | ||
1521 | /* | |
1522 | * Basic connector properties | |
1523 | */ | |
4a67d391 | 1524 | tv_selector = drm_property_create_enum(dev, 0, |
f453ba04 | 1525 | "select subconnector", |
4a67d391 | 1526 | drm_tv_select_enum_list, |
f453ba04 | 1527 | ARRAY_SIZE(drm_tv_select_enum_list)); |
f453ba04 DA |
1528 | dev->mode_config.tv_select_subconnector_property = tv_selector; |
1529 | ||
1530 | tv_subconnector = | |
4a67d391 SH |
1531 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1532 | "subconnector", | |
1533 | drm_tv_subconnector_enum_list, | |
f453ba04 | 1534 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
f453ba04 DA |
1535 | dev->mode_config.tv_subconnector_property = tv_subconnector; |
1536 | ||
1537 | /* | |
1538 | * Other, TV specific properties: margins & TV modes. | |
1539 | */ | |
1540 | dev->mode_config.tv_left_margin_property = | |
d9bc3c02 | 1541 | drm_property_create_range(dev, 0, "left margin", 0, 100); |
f453ba04 DA |
1542 | |
1543 | dev->mode_config.tv_right_margin_property = | |
d9bc3c02 | 1544 | drm_property_create_range(dev, 0, "right margin", 0, 100); |
f453ba04 DA |
1545 | |
1546 | dev->mode_config.tv_top_margin_property = | |
d9bc3c02 | 1547 | drm_property_create_range(dev, 0, "top margin", 0, 100); |
f453ba04 DA |
1548 | |
1549 | dev->mode_config.tv_bottom_margin_property = | |
d9bc3c02 | 1550 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); |
f453ba04 DA |
1551 | |
1552 | dev->mode_config.tv_mode_property = | |
1553 | drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
1554 | "mode", num_modes); | |
1555 | for (i = 0; i < num_modes; i++) | |
1556 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, | |
1557 | i, modes[i]); | |
1558 | ||
b6b7902e | 1559 | dev->mode_config.tv_brightness_property = |
d9bc3c02 | 1560 | drm_property_create_range(dev, 0, "brightness", 0, 100); |
b6b7902e FJ |
1561 | |
1562 | dev->mode_config.tv_contrast_property = | |
d9bc3c02 | 1563 | drm_property_create_range(dev, 0, "contrast", 0, 100); |
b6b7902e FJ |
1564 | |
1565 | dev->mode_config.tv_flicker_reduction_property = | |
d9bc3c02 | 1566 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); |
b6b7902e | 1567 | |
a75f0236 | 1568 | dev->mode_config.tv_overscan_property = |
d9bc3c02 | 1569 | drm_property_create_range(dev, 0, "overscan", 0, 100); |
a75f0236 FJ |
1570 | |
1571 | dev->mode_config.tv_saturation_property = | |
d9bc3c02 | 1572 | drm_property_create_range(dev, 0, "saturation", 0, 100); |
a75f0236 FJ |
1573 | |
1574 | dev->mode_config.tv_hue_property = | |
d9bc3c02 | 1575 | drm_property_create_range(dev, 0, "hue", 0, 100); |
a75f0236 | 1576 | |
f453ba04 DA |
1577 | return 0; |
1578 | } | |
1579 | EXPORT_SYMBOL(drm_mode_create_tv_properties); | |
1580 | ||
1581 | /** | |
1582 | * drm_mode_create_scaling_mode_property - create scaling mode property | |
1583 | * @dev: DRM device | |
1584 | * | |
1585 | * Called by a driver the first time it's needed, must be attached to desired | |
1586 | * connectors. | |
1587 | */ | |
1588 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) | |
1589 | { | |
1590 | struct drm_property *scaling_mode; | |
f453ba04 DA |
1591 | |
1592 | if (dev->mode_config.scaling_mode_property) | |
1593 | return 0; | |
1594 | ||
1595 | scaling_mode = | |
4a67d391 SH |
1596 | drm_property_create_enum(dev, 0, "scaling mode", |
1597 | drm_scaling_mode_enum_list, | |
f453ba04 | 1598 | ARRAY_SIZE(drm_scaling_mode_enum_list)); |
f453ba04 DA |
1599 | |
1600 | dev->mode_config.scaling_mode_property = scaling_mode; | |
1601 | ||
1602 | return 0; | |
1603 | } | |
1604 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); | |
1605 | ||
ff587e45 VK |
1606 | /** |
1607 | * drm_mode_create_aspect_ratio_property - create aspect ratio property | |
1608 | * @dev: DRM device | |
1609 | * | |
1610 | * Called by a driver the first time it's needed, must be attached to desired | |
1611 | * connectors. | |
1612 | * | |
1613 | * Returns: | |
1a498633 | 1614 | * Zero on success, negative errno on failure. |
ff587e45 VK |
1615 | */ |
1616 | int drm_mode_create_aspect_ratio_property(struct drm_device *dev) | |
1617 | { | |
1618 | if (dev->mode_config.aspect_ratio_property) | |
1619 | return 0; | |
1620 | ||
1621 | dev->mode_config.aspect_ratio_property = | |
1622 | drm_property_create_enum(dev, 0, "aspect ratio", | |
1623 | drm_aspect_ratio_enum_list, | |
1624 | ARRAY_SIZE(drm_aspect_ratio_enum_list)); | |
1625 | ||
1626 | if (dev->mode_config.aspect_ratio_property == NULL) | |
1627 | return -ENOMEM; | |
1628 | ||
1629 | return 0; | |
1630 | } | |
1631 | EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); | |
1632 | ||
884840aa JB |
1633 | /** |
1634 | * drm_mode_create_dirty_property - create dirty property | |
1635 | * @dev: DRM device | |
1636 | * | |
1637 | * Called by a driver the first time it's needed, must be attached to desired | |
1638 | * connectors. | |
1639 | */ | |
1640 | int drm_mode_create_dirty_info_property(struct drm_device *dev) | |
1641 | { | |
1642 | struct drm_property *dirty_info; | |
884840aa JB |
1643 | |
1644 | if (dev->mode_config.dirty_info_property) | |
1645 | return 0; | |
1646 | ||
1647 | dirty_info = | |
4a67d391 | 1648 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
884840aa | 1649 | "dirty", |
4a67d391 | 1650 | drm_dirty_info_enum_list, |
884840aa | 1651 | ARRAY_SIZE(drm_dirty_info_enum_list)); |
884840aa JB |
1652 | dev->mode_config.dirty_info_property = dirty_info; |
1653 | ||
1654 | return 0; | |
1655 | } | |
1656 | EXPORT_SYMBOL(drm_mode_create_dirty_info_property); | |
1657 | ||
5bb2bbf5 DA |
1658 | /** |
1659 | * drm_mode_create_suggested_offset_properties - create suggests offset properties | |
1660 | * @dev: DRM device | |
1661 | * | |
1662 | * Create the the suggested x/y offset property for connectors. | |
1663 | */ | |
1664 | int drm_mode_create_suggested_offset_properties(struct drm_device *dev) | |
1665 | { | |
1666 | if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property) | |
1667 | return 0; | |
1668 | ||
1669 | dev->mode_config.suggested_x_property = | |
1670 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff); | |
1671 | ||
1672 | dev->mode_config.suggested_y_property = | |
1673 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff); | |
1674 | ||
1675 | if (dev->mode_config.suggested_x_property == NULL || | |
1676 | dev->mode_config.suggested_y_property == NULL) | |
1677 | return -ENOMEM; | |
1678 | return 0; | |
1679 | } | |
1680 | EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties); | |
1681 | ||
f453ba04 DA |
1682 | /** |
1683 | * drm_mode_getresources - get graphics configuration | |
065a50ed DV |
1684 | * @dev: drm device for the ioctl |
1685 | * @data: data pointer for the ioctl | |
1686 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1687 | * |
f453ba04 DA |
1688 | * Construct a set of configuration description structures and return |
1689 | * them to the user, including CRTC, connector and framebuffer configuration. | |
1690 | * | |
1691 | * Called by the user via ioctl. | |
1692 | * | |
c8e32cc1 | 1693 | * Returns: |
1a498633 | 1694 | * Zero on success, negative errno on failure. |
f453ba04 DA |
1695 | */ |
1696 | int drm_mode_getresources(struct drm_device *dev, void *data, | |
1697 | struct drm_file *file_priv) | |
1698 | { | |
1699 | struct drm_mode_card_res *card_res = data; | |
1700 | struct list_head *lh; | |
1701 | struct drm_framebuffer *fb; | |
1702 | struct drm_connector *connector; | |
1703 | struct drm_crtc *crtc; | |
1704 | struct drm_encoder *encoder; | |
1705 | int ret = 0; | |
1706 | int connector_count = 0; | |
1707 | int crtc_count = 0; | |
1708 | int fb_count = 0; | |
1709 | int encoder_count = 0; | |
9c7060f7 | 1710 | int copied = 0; |
f453ba04 DA |
1711 | uint32_t __user *fb_id; |
1712 | uint32_t __user *crtc_id; | |
1713 | uint32_t __user *connector_id; | |
1714 | uint32_t __user *encoder_id; | |
f453ba04 | 1715 | |
fb3b06c8 DA |
1716 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1717 | return -EINVAL; | |
1718 | ||
f453ba04 | 1719 | |
4b096ac1 | 1720 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
1721 | /* |
1722 | * For the non-control nodes we need to limit the list of resources | |
1723 | * by IDs in the group list for this node | |
1724 | */ | |
1725 | list_for_each(lh, &file_priv->fbs) | |
1726 | fb_count++; | |
1727 | ||
4b096ac1 DV |
1728 | /* handle this in 4 parts */ |
1729 | /* FBs */ | |
1730 | if (card_res->count_fbs >= fb_count) { | |
1731 | copied = 0; | |
1732 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; | |
1733 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { | |
1734 | if (put_user(fb->base.id, fb_id + copied)) { | |
1735 | mutex_unlock(&file_priv->fbs_lock); | |
1736 | return -EFAULT; | |
1737 | } | |
1738 | copied++; | |
1739 | } | |
1740 | } | |
1741 | card_res->count_fbs = fb_count; | |
1742 | mutex_unlock(&file_priv->fbs_lock); | |
1743 | ||
fcf93f69 DV |
1744 | /* mode_config.mutex protects the connector list against e.g. DP MST |
1745 | * connector hot-adding. CRTC/Plane lists are invariant. */ | |
1746 | mutex_lock(&dev->mode_config.mutex); | |
9c7060f7 DV |
1747 | drm_for_each_crtc(crtc, dev) |
1748 | crtc_count++; | |
f453ba04 | 1749 | |
9c7060f7 DV |
1750 | drm_for_each_connector(connector, dev) |
1751 | connector_count++; | |
f453ba04 | 1752 | |
9c7060f7 DV |
1753 | drm_for_each_encoder(encoder, dev) |
1754 | encoder_count++; | |
f453ba04 DA |
1755 | |
1756 | card_res->max_height = dev->mode_config.max_height; | |
1757 | card_res->min_height = dev->mode_config.min_height; | |
1758 | card_res->max_width = dev->mode_config.max_width; | |
1759 | card_res->min_width = dev->mode_config.min_width; | |
1760 | ||
f453ba04 DA |
1761 | /* CRTCs */ |
1762 | if (card_res->count_crtcs >= crtc_count) { | |
1763 | copied = 0; | |
1764 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; | |
9c7060f7 DV |
1765 | drm_for_each_crtc(crtc, dev) { |
1766 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); | |
1767 | if (put_user(crtc->base.id, crtc_id + copied)) { | |
1768 | ret = -EFAULT; | |
1769 | goto out; | |
f453ba04 | 1770 | } |
9c7060f7 | 1771 | copied++; |
f453ba04 DA |
1772 | } |
1773 | } | |
1774 | card_res->count_crtcs = crtc_count; | |
1775 | ||
1776 | /* Encoders */ | |
1777 | if (card_res->count_encoders >= encoder_count) { | |
1778 | copied = 0; | |
1779 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; | |
9c7060f7 DV |
1780 | drm_for_each_encoder(encoder, dev) { |
1781 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, | |
1782 | encoder->name); | |
1783 | if (put_user(encoder->base.id, encoder_id + | |
1784 | copied)) { | |
1785 | ret = -EFAULT; | |
1786 | goto out; | |
f453ba04 | 1787 | } |
9c7060f7 | 1788 | copied++; |
f453ba04 DA |
1789 | } |
1790 | } | |
1791 | card_res->count_encoders = encoder_count; | |
1792 | ||
1793 | /* Connectors */ | |
1794 | if (card_res->count_connectors >= connector_count) { | |
1795 | copied = 0; | |
1796 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; | |
9c7060f7 DV |
1797 | drm_for_each_connector(connector, dev) { |
1798 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", | |
1799 | connector->base.id, | |
1800 | connector->name); | |
1801 | if (put_user(connector->base.id, | |
1802 | connector_id + copied)) { | |
1803 | ret = -EFAULT; | |
1804 | goto out; | |
f453ba04 | 1805 | } |
9c7060f7 | 1806 | copied++; |
f453ba04 DA |
1807 | } |
1808 | } | |
1809 | card_res->count_connectors = connector_count; | |
1810 | ||
9440106b | 1811 | DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, |
f453ba04 DA |
1812 | card_res->count_connectors, card_res->count_encoders); |
1813 | ||
1814 | out: | |
fcf93f69 | 1815 | mutex_unlock(&dev->mode_config.mutex); |
f453ba04 DA |
1816 | return ret; |
1817 | } | |
1818 | ||
1819 | /** | |
1820 | * drm_mode_getcrtc - get CRTC configuration | |
065a50ed DV |
1821 | * @dev: drm device for the ioctl |
1822 | * @data: data pointer for the ioctl | |
1823 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1824 | * |
f453ba04 DA |
1825 | * Construct a CRTC configuration structure to return to the user. |
1826 | * | |
1827 | * Called by the user via ioctl. | |
1828 | * | |
c8e32cc1 | 1829 | * Returns: |
1a498633 | 1830 | * Zero on success, negative errno on failure. |
f453ba04 DA |
1831 | */ |
1832 | int drm_mode_getcrtc(struct drm_device *dev, | |
1833 | void *data, struct drm_file *file_priv) | |
1834 | { | |
1835 | struct drm_mode_crtc *crtc_resp = data; | |
1836 | struct drm_crtc *crtc; | |
f453ba04 | 1837 | |
fb3b06c8 DA |
1838 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1839 | return -EINVAL; | |
1840 | ||
a2b34e22 | 1841 | crtc = drm_crtc_find(dev, crtc_resp->crtc_id); |
fcf93f69 DV |
1842 | if (!crtc) |
1843 | return -ENOENT; | |
f453ba04 | 1844 | |
fcf93f69 | 1845 | drm_modeset_lock_crtc(crtc, crtc->primary); |
f453ba04 | 1846 | crtc_resp->gamma_size = crtc->gamma_size; |
f4510a27 MR |
1847 | if (crtc->primary->fb) |
1848 | crtc_resp->fb_id = crtc->primary->fb->base.id; | |
f453ba04 DA |
1849 | else |
1850 | crtc_resp->fb_id = 0; | |
1851 | ||
31c946e8 DV |
1852 | if (crtc->state) { |
1853 | crtc_resp->x = crtc->primary->state->src_x >> 16; | |
1854 | crtc_resp->y = crtc->primary->state->src_y >> 16; | |
1855 | if (crtc->state->enable) { | |
934a8a89 | 1856 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode); |
31c946e8 | 1857 | crtc_resp->mode_valid = 1; |
f453ba04 | 1858 | |
31c946e8 DV |
1859 | } else { |
1860 | crtc_resp->mode_valid = 0; | |
1861 | } | |
f453ba04 | 1862 | } else { |
31c946e8 DV |
1863 | crtc_resp->x = crtc->x; |
1864 | crtc_resp->y = crtc->y; | |
1865 | if (crtc->enabled) { | |
934a8a89 | 1866 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode); |
31c946e8 DV |
1867 | crtc_resp->mode_valid = 1; |
1868 | ||
1869 | } else { | |
1870 | crtc_resp->mode_valid = 0; | |
1871 | } | |
f453ba04 | 1872 | } |
fcf93f69 | 1873 | drm_modeset_unlock_crtc(crtc); |
f453ba04 | 1874 | |
baf698b0 | 1875 | return 0; |
f453ba04 DA |
1876 | } |
1877 | ||
61d8e328 DL |
1878 | static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, |
1879 | const struct drm_file *file_priv) | |
1880 | { | |
1881 | /* | |
1882 | * If user-space hasn't configured the driver to expose the stereo 3D | |
1883 | * modes, don't expose them. | |
1884 | */ | |
1885 | if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) | |
1886 | return false; | |
1887 | ||
1888 | return true; | |
1889 | } | |
1890 | ||
abd69c55 DV |
1891 | static struct drm_encoder *drm_connector_get_encoder(struct drm_connector *connector) |
1892 | { | |
1893 | /* For atomic drivers only state objects are synchronously updated and | |
1894 | * protected by modeset locks, so check those first. */ | |
1895 | if (connector->state) | |
1896 | return connector->state->best_encoder; | |
1897 | return connector->encoder; | |
1898 | } | |
1899 | ||
95cbf110 | 1900 | /* helper for getconnector and getproperties ioctls */ |
88a48e29 | 1901 | static int get_properties(struct drm_mode_object *obj, bool atomic, |
95cbf110 RC |
1902 | uint32_t __user *prop_ptr, uint64_t __user *prop_values, |
1903 | uint32_t *arg_count_props) | |
1904 | { | |
88a48e29 RC |
1905 | int props_count; |
1906 | int i, ret, copied; | |
1907 | ||
1908 | props_count = obj->properties->count; | |
1909 | if (!atomic) | |
1910 | props_count -= obj->properties->atomic_count; | |
95cbf110 RC |
1911 | |
1912 | if ((*arg_count_props >= props_count) && props_count) { | |
88a48e29 | 1913 | for (i = 0, copied = 0; copied < props_count; i++) { |
95cbf110 RC |
1914 | struct drm_property *prop = obj->properties->properties[i]; |
1915 | uint64_t val; | |
1916 | ||
88a48e29 RC |
1917 | if ((prop->flags & DRM_MODE_PROP_ATOMIC) && !atomic) |
1918 | continue; | |
1919 | ||
95cbf110 RC |
1920 | ret = drm_object_property_get_value(obj, prop, &val); |
1921 | if (ret) | |
1922 | return ret; | |
1923 | ||
1924 | if (put_user(prop->base.id, prop_ptr + copied)) | |
1925 | return -EFAULT; | |
1926 | ||
1927 | if (put_user(val, prop_values + copied)) | |
1928 | return -EFAULT; | |
1929 | ||
1930 | copied++; | |
1931 | } | |
1932 | } | |
1933 | *arg_count_props = props_count; | |
1934 | ||
1935 | return 0; | |
1936 | } | |
1937 | ||
f453ba04 DA |
1938 | /** |
1939 | * drm_mode_getconnector - get connector configuration | |
065a50ed DV |
1940 | * @dev: drm device for the ioctl |
1941 | * @data: data pointer for the ioctl | |
1942 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1943 | * |
f453ba04 DA |
1944 | * Construct a connector configuration structure to return to the user. |
1945 | * | |
1946 | * Called by the user via ioctl. | |
1947 | * | |
c8e32cc1 | 1948 | * Returns: |
1a498633 | 1949 | * Zero on success, negative errno on failure. |
f453ba04 DA |
1950 | */ |
1951 | int drm_mode_getconnector(struct drm_device *dev, void *data, | |
1952 | struct drm_file *file_priv) | |
1953 | { | |
1954 | struct drm_mode_get_connector *out_resp = data; | |
f453ba04 | 1955 | struct drm_connector *connector; |
abd69c55 | 1956 | struct drm_encoder *encoder; |
f453ba04 DA |
1957 | struct drm_display_mode *mode; |
1958 | int mode_count = 0; | |
f453ba04 DA |
1959 | int encoders_count = 0; |
1960 | int ret = 0; | |
1961 | int copied = 0; | |
1962 | int i; | |
1963 | struct drm_mode_modeinfo u_mode; | |
1964 | struct drm_mode_modeinfo __user *mode_ptr; | |
f453ba04 DA |
1965 | uint32_t __user *encoder_ptr; |
1966 | ||
fb3b06c8 DA |
1967 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1968 | return -EINVAL; | |
1969 | ||
f453ba04 DA |
1970 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
1971 | ||
9440106b | 1972 | DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); |
f453ba04 | 1973 | |
7b24056b | 1974 | mutex_lock(&dev->mode_config.mutex); |
f453ba04 | 1975 | |
a2b34e22 RC |
1976 | connector = drm_connector_find(dev, out_resp->connector_id); |
1977 | if (!connector) { | |
f27657f2 | 1978 | ret = -ENOENT; |
04bdf441 | 1979 | goto out_unlock; |
f453ba04 | 1980 | } |
f453ba04 | 1981 | |
01073b08 TR |
1982 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) |
1983 | if (connector->encoder_ids[i] != 0) | |
f453ba04 | 1984 | encoders_count++; |
f453ba04 DA |
1985 | |
1986 | if (out_resp->count_modes == 0) { | |
1987 | connector->funcs->fill_modes(connector, | |
1988 | dev->mode_config.max_width, | |
1989 | dev->mode_config.max_height); | |
1990 | } | |
1991 | ||
1992 | /* delayed so we get modes regardless of pre-fill_modes state */ | |
1993 | list_for_each_entry(mode, &connector->modes, head) | |
61d8e328 DL |
1994 | if (drm_mode_expose_to_userspace(mode, file_priv)) |
1995 | mode_count++; | |
f453ba04 DA |
1996 | |
1997 | out_resp->connector_id = connector->base.id; | |
1998 | out_resp->connector_type = connector->connector_type; | |
1999 | out_resp->connector_type_id = connector->connector_type_id; | |
2000 | out_resp->mm_width = connector->display_info.width_mm; | |
2001 | out_resp->mm_height = connector->display_info.height_mm; | |
2002 | out_resp->subpixel = connector->display_info.subpixel_order; | |
2003 | out_resp->connection = connector->status; | |
2caa80e7 DV |
2004 | |
2005 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); | |
abd69c55 DV |
2006 | encoder = drm_connector_get_encoder(connector); |
2007 | if (encoder) | |
2008 | out_resp->encoder_id = encoder->base.id; | |
f453ba04 DA |
2009 | else |
2010 | out_resp->encoder_id = 0; | |
2011 | ||
2012 | /* | |
2013 | * This ioctl is called twice, once to determine how much space is | |
2014 | * needed, and the 2nd time to fill it. | |
2015 | */ | |
2016 | if ((out_resp->count_modes >= mode_count) && mode_count) { | |
2017 | copied = 0; | |
81f6c7f8 | 2018 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; |
f453ba04 | 2019 | list_for_each_entry(mode, &connector->modes, head) { |
61d8e328 DL |
2020 | if (!drm_mode_expose_to_userspace(mode, file_priv)) |
2021 | continue; | |
2022 | ||
934a8a89 | 2023 | drm_mode_convert_to_umode(&u_mode, mode); |
f453ba04 DA |
2024 | if (copy_to_user(mode_ptr + copied, |
2025 | &u_mode, sizeof(u_mode))) { | |
2026 | ret = -EFAULT; | |
2027 | goto out; | |
2028 | } | |
2029 | copied++; | |
2030 | } | |
2031 | } | |
2032 | out_resp->count_modes = mode_count; | |
2033 | ||
88a48e29 | 2034 | ret = get_properties(&connector->base, file_priv->atomic, |
95cbf110 RC |
2035 | (uint32_t __user *)(unsigned long)(out_resp->props_ptr), |
2036 | (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr), | |
2037 | &out_resp->count_props); | |
2038 | if (ret) | |
2039 | goto out; | |
f453ba04 DA |
2040 | |
2041 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { | |
2042 | copied = 0; | |
81f6c7f8 | 2043 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); |
f453ba04 DA |
2044 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
2045 | if (connector->encoder_ids[i] != 0) { | |
2046 | if (put_user(connector->encoder_ids[i], | |
2047 | encoder_ptr + copied)) { | |
2048 | ret = -EFAULT; | |
2049 | goto out; | |
2050 | } | |
2051 | copied++; | |
2052 | } | |
2053 | } | |
2054 | } | |
2055 | out_resp->count_encoders = encoders_count; | |
2056 | ||
2057 | out: | |
ccfc0865 | 2058 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
04bdf441 TR |
2059 | |
2060 | out_unlock: | |
7b24056b DV |
2061 | mutex_unlock(&dev->mode_config.mutex); |
2062 | ||
f453ba04 DA |
2063 | return ret; |
2064 | } | |
2065 | ||
abd69c55 DV |
2066 | static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder) |
2067 | { | |
2068 | struct drm_connector *connector; | |
2069 | struct drm_device *dev = encoder->dev; | |
2070 | bool uses_atomic = false; | |
2071 | ||
2072 | /* For atomic drivers only state objects are synchronously updated and | |
2073 | * protected by modeset locks, so check those first. */ | |
6295d607 | 2074 | drm_for_each_connector(connector, dev) { |
abd69c55 DV |
2075 | if (!connector->state) |
2076 | continue; | |
2077 | ||
2078 | uses_atomic = true; | |
2079 | ||
2080 | if (connector->state->best_encoder != encoder) | |
2081 | continue; | |
2082 | ||
2083 | return connector->state->crtc; | |
2084 | } | |
2085 | ||
2086 | /* Don't return stale data (e.g. pending async disable). */ | |
2087 | if (uses_atomic) | |
2088 | return NULL; | |
2089 | ||
2090 | return encoder->crtc; | |
2091 | } | |
2092 | ||
c8e32cc1 DV |
2093 | /** |
2094 | * drm_mode_getencoder - get encoder configuration | |
2095 | * @dev: drm device for the ioctl | |
2096 | * @data: data pointer for the ioctl | |
2097 | * @file_priv: drm file for the ioctl call | |
2098 | * | |
2099 | * Construct a encoder configuration structure to return to the user. | |
2100 | * | |
2101 | * Called by the user via ioctl. | |
2102 | * | |
2103 | * Returns: | |
1a498633 | 2104 | * Zero on success, negative errno on failure. |
c8e32cc1 | 2105 | */ |
f453ba04 DA |
2106 | int drm_mode_getencoder(struct drm_device *dev, void *data, |
2107 | struct drm_file *file_priv) | |
2108 | { | |
2109 | struct drm_mode_get_encoder *enc_resp = data; | |
f453ba04 | 2110 | struct drm_encoder *encoder; |
abd69c55 | 2111 | struct drm_crtc *crtc; |
f453ba04 | 2112 | |
fb3b06c8 DA |
2113 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2114 | return -EINVAL; | |
2115 | ||
a2b34e22 | 2116 | encoder = drm_encoder_find(dev, enc_resp->encoder_id); |
fcf93f69 DV |
2117 | if (!encoder) |
2118 | return -ENOENT; | |
f453ba04 | 2119 | |
fcf93f69 | 2120 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
abd69c55 DV |
2121 | crtc = drm_encoder_get_crtc(encoder); |
2122 | if (crtc) | |
2123 | enc_resp->crtc_id = crtc->base.id; | |
f453ba04 DA |
2124 | else |
2125 | enc_resp->crtc_id = 0; | |
fcf93f69 DV |
2126 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
2127 | ||
f453ba04 DA |
2128 | enc_resp->encoder_type = encoder->encoder_type; |
2129 | enc_resp->encoder_id = encoder->base.id; | |
2130 | enc_resp->possible_crtcs = encoder->possible_crtcs; | |
2131 | enc_resp->possible_clones = encoder->possible_clones; | |
2132 | ||
baf698b0 | 2133 | return 0; |
f453ba04 DA |
2134 | } |
2135 | ||
8cf5c917 | 2136 | /** |
c8e32cc1 | 2137 | * drm_mode_getplane_res - enumerate all plane resources |
8cf5c917 JB |
2138 | * @dev: DRM device |
2139 | * @data: ioctl data | |
2140 | * @file_priv: DRM file info | |
2141 | * | |
c8e32cc1 DV |
2142 | * Construct a list of plane ids to return to the user. |
2143 | * | |
2144 | * Called by the user via ioctl. | |
2145 | * | |
2146 | * Returns: | |
1a498633 | 2147 | * Zero on success, negative errno on failure. |
8cf5c917 JB |
2148 | */ |
2149 | int drm_mode_getplane_res(struct drm_device *dev, void *data, | |
c8e32cc1 | 2150 | struct drm_file *file_priv) |
8cf5c917 JB |
2151 | { |
2152 | struct drm_mode_get_plane_res *plane_resp = data; | |
2153 | struct drm_mode_config *config; | |
2154 | struct drm_plane *plane; | |
2155 | uint32_t __user *plane_ptr; | |
fcf93f69 | 2156 | int copied = 0; |
681e7ec7 | 2157 | unsigned num_planes; |
8cf5c917 JB |
2158 | |
2159 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2160 | return -EINVAL; | |
2161 | ||
8cf5c917 JB |
2162 | config = &dev->mode_config; |
2163 | ||
681e7ec7 MR |
2164 | if (file_priv->universal_planes) |
2165 | num_planes = config->num_total_plane; | |
2166 | else | |
2167 | num_planes = config->num_overlay_plane; | |
2168 | ||
8cf5c917 JB |
2169 | /* |
2170 | * This ioctl is called twice, once to determine how much space is | |
2171 | * needed, and the 2nd time to fill it. | |
2172 | */ | |
681e7ec7 MR |
2173 | if (num_planes && |
2174 | (plane_resp->count_planes >= num_planes)) { | |
81f6c7f8 | 2175 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
8cf5c917 | 2176 | |
fcf93f69 | 2177 | /* Plane lists are invariant, no locking needed. */ |
e4f62546 | 2178 | drm_for_each_plane(plane, dev) { |
681e7ec7 MR |
2179 | /* |
2180 | * Unless userspace set the 'universal planes' | |
2181 | * capability bit, only advertise overlays. | |
2182 | */ | |
2183 | if (plane->type != DRM_PLANE_TYPE_OVERLAY && | |
2184 | !file_priv->universal_planes) | |
e27dde3e MR |
2185 | continue; |
2186 | ||
fcf93f69 DV |
2187 | if (put_user(plane->base.id, plane_ptr + copied)) |
2188 | return -EFAULT; | |
8cf5c917 JB |
2189 | copied++; |
2190 | } | |
2191 | } | |
681e7ec7 | 2192 | plane_resp->count_planes = num_planes; |
8cf5c917 | 2193 | |
fcf93f69 | 2194 | return 0; |
8cf5c917 JB |
2195 | } |
2196 | ||
2197 | /** | |
c8e32cc1 | 2198 | * drm_mode_getplane - get plane configuration |
8cf5c917 JB |
2199 | * @dev: DRM device |
2200 | * @data: ioctl data | |
2201 | * @file_priv: DRM file info | |
2202 | * | |
c8e32cc1 DV |
2203 | * Construct a plane configuration structure to return to the user. |
2204 | * | |
2205 | * Called by the user via ioctl. | |
2206 | * | |
2207 | * Returns: | |
1a498633 | 2208 | * Zero on success, negative errno on failure. |
8cf5c917 JB |
2209 | */ |
2210 | int drm_mode_getplane(struct drm_device *dev, void *data, | |
c8e32cc1 | 2211 | struct drm_file *file_priv) |
8cf5c917 JB |
2212 | { |
2213 | struct drm_mode_get_plane *plane_resp = data; | |
8cf5c917 JB |
2214 | struct drm_plane *plane; |
2215 | uint32_t __user *format_ptr; | |
8cf5c917 JB |
2216 | |
2217 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2218 | return -EINVAL; | |
2219 | ||
a2b34e22 | 2220 | plane = drm_plane_find(dev, plane_resp->plane_id); |
fcf93f69 DV |
2221 | if (!plane) |
2222 | return -ENOENT; | |
8cf5c917 | 2223 | |
fcf93f69 | 2224 | drm_modeset_lock(&plane->mutex, NULL); |
8cf5c917 JB |
2225 | if (plane->crtc) |
2226 | plane_resp->crtc_id = plane->crtc->base.id; | |
2227 | else | |
2228 | plane_resp->crtc_id = 0; | |
2229 | ||
2230 | if (plane->fb) | |
2231 | plane_resp->fb_id = plane->fb->base.id; | |
2232 | else | |
2233 | plane_resp->fb_id = 0; | |
fcf93f69 | 2234 | drm_modeset_unlock(&plane->mutex); |
8cf5c917 JB |
2235 | |
2236 | plane_resp->plane_id = plane->base.id; | |
2237 | plane_resp->possible_crtcs = plane->possible_crtcs; | |
778ad903 | 2238 | plane_resp->gamma_size = 0; |
8cf5c917 JB |
2239 | |
2240 | /* | |
2241 | * This ioctl is called twice, once to determine how much space is | |
2242 | * needed, and the 2nd time to fill it. | |
2243 | */ | |
2244 | if (plane->format_count && | |
2245 | (plane_resp->count_format_types >= plane->format_count)) { | |
81f6c7f8 | 2246 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
8cf5c917 JB |
2247 | if (copy_to_user(format_ptr, |
2248 | plane->format_types, | |
2249 | sizeof(uint32_t) * plane->format_count)) { | |
fcf93f69 | 2250 | return -EFAULT; |
8cf5c917 JB |
2251 | } |
2252 | } | |
2253 | plane_resp->count_format_types = plane->format_count; | |
2254 | ||
baf698b0 | 2255 | return 0; |
8cf5c917 JB |
2256 | } |
2257 | ||
ead8610d LP |
2258 | /** |
2259 | * drm_plane_check_pixel_format - Check if the plane supports the pixel format | |
2260 | * @plane: plane to check for format support | |
2261 | * @format: the pixel format | |
2262 | * | |
2263 | * Returns: | |
2264 | * Zero of @plane has @format in its list of supported pixel formats, -EINVAL | |
2265 | * otherwise. | |
2266 | */ | |
2267 | int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format) | |
2268 | { | |
2269 | unsigned int i; | |
2270 | ||
2271 | for (i = 0; i < plane->format_count; i++) { | |
2272 | if (format == plane->format_types[i]) | |
2273 | return 0; | |
2274 | } | |
2275 | ||
2276 | return -EINVAL; | |
2277 | } | |
2278 | ||
b36552b3 MR |
2279 | /* |
2280 | * setplane_internal - setplane handler for internal callers | |
8cf5c917 | 2281 | * |
b36552b3 MR |
2282 | * Note that we assume an extra reference has already been taken on fb. If the |
2283 | * update fails, this reference will be dropped before return; if it succeeds, | |
2284 | * the previous framebuffer (if any) will be unreferenced instead. | |
c8e32cc1 | 2285 | * |
b36552b3 | 2286 | * src_{x,y,w,h} are provided in 16.16 fixed point format |
8cf5c917 | 2287 | */ |
f2b50c11 DV |
2288 | static int __setplane_internal(struct drm_plane *plane, |
2289 | struct drm_crtc *crtc, | |
2290 | struct drm_framebuffer *fb, | |
2291 | int32_t crtc_x, int32_t crtc_y, | |
2292 | uint32_t crtc_w, uint32_t crtc_h, | |
2293 | /* src_{x,y,w,h} values are 16.16 fixed point */ | |
2294 | uint32_t src_x, uint32_t src_y, | |
2295 | uint32_t src_w, uint32_t src_h) | |
8cf5c917 | 2296 | { |
8cf5c917 | 2297 | int ret = 0; |
42ef8789 | 2298 | unsigned int fb_width, fb_height; |
8cf5c917 | 2299 | |
8cf5c917 | 2300 | /* No fb means shut it down */ |
b36552b3 | 2301 | if (!fb) { |
3d30a59b | 2302 | plane->old_fb = plane->fb; |
731cce48 DV |
2303 | ret = plane->funcs->disable_plane(plane); |
2304 | if (!ret) { | |
2305 | plane->crtc = NULL; | |
2306 | plane->fb = NULL; | |
2307 | } else { | |
3d30a59b | 2308 | plane->old_fb = NULL; |
731cce48 | 2309 | } |
8cf5c917 JB |
2310 | goto out; |
2311 | } | |
2312 | ||
7f994f3f MR |
2313 | /* Check whether this plane is usable on this CRTC */ |
2314 | if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { | |
2315 | DRM_DEBUG_KMS("Invalid crtc for plane\n"); | |
2316 | ret = -EINVAL; | |
2317 | goto out; | |
2318 | } | |
2319 | ||
62443be6 | 2320 | /* Check whether this plane supports the fb pixel format. */ |
ead8610d LP |
2321 | ret = drm_plane_check_pixel_format(plane, fb->pixel_format); |
2322 | if (ret) { | |
6ba6d03e VS |
2323 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
2324 | drm_get_format_name(fb->pixel_format)); | |
62443be6 VS |
2325 | goto out; |
2326 | } | |
2327 | ||
3968be94 MR |
2328 | /* Give drivers some help against integer overflows */ |
2329 | if (crtc_w > INT_MAX || | |
2330 | crtc_x > INT_MAX - (int32_t) crtc_w || | |
2331 | crtc_h > INT_MAX || | |
2332 | crtc_y > INT_MAX - (int32_t) crtc_h) { | |
2333 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", | |
2334 | crtc_w, crtc_h, crtc_x, crtc_y); | |
2335 | return -ERANGE; | |
2336 | } | |
2337 | ||
2338 | ||
42ef8789 VS |
2339 | fb_width = fb->width << 16; |
2340 | fb_height = fb->height << 16; | |
2341 | ||
2342 | /* Make sure source coordinates are inside the fb. */ | |
b36552b3 MR |
2343 | if (src_w > fb_width || |
2344 | src_x > fb_width - src_w || | |
2345 | src_h > fb_height || | |
2346 | src_y > fb_height - src_h) { | |
42ef8789 VS |
2347 | DRM_DEBUG_KMS("Invalid source coordinates " |
2348 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", | |
b36552b3 MR |
2349 | src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, |
2350 | src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, | |
2351 | src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, | |
2352 | src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); | |
42ef8789 VS |
2353 | ret = -ENOSPC; |
2354 | goto out; | |
2355 | } | |
2356 | ||
3d30a59b | 2357 | plane->old_fb = plane->fb; |
8cf5c917 | 2358 | ret = plane->funcs->update_plane(plane, crtc, fb, |
b36552b3 MR |
2359 | crtc_x, crtc_y, crtc_w, crtc_h, |
2360 | src_x, src_y, src_w, src_h); | |
8cf5c917 JB |
2361 | if (!ret) { |
2362 | plane->crtc = crtc; | |
2363 | plane->fb = fb; | |
35f8badc | 2364 | fb = NULL; |
0fe27f06 | 2365 | } else { |
3d30a59b | 2366 | plane->old_fb = NULL; |
8cf5c917 JB |
2367 | } |
2368 | ||
2369 | out: | |
6c2a7532 DV |
2370 | if (fb) |
2371 | drm_framebuffer_unreference(fb); | |
3d30a59b DV |
2372 | if (plane->old_fb) |
2373 | drm_framebuffer_unreference(plane->old_fb); | |
2374 | plane->old_fb = NULL; | |
8cf5c917 JB |
2375 | |
2376 | return ret; | |
f2b50c11 | 2377 | } |
b36552b3 | 2378 | |
f2b50c11 DV |
2379 | static int setplane_internal(struct drm_plane *plane, |
2380 | struct drm_crtc *crtc, | |
2381 | struct drm_framebuffer *fb, | |
2382 | int32_t crtc_x, int32_t crtc_y, | |
2383 | uint32_t crtc_w, uint32_t crtc_h, | |
2384 | /* src_{x,y,w,h} values are 16.16 fixed point */ | |
2385 | uint32_t src_x, uint32_t src_y, | |
2386 | uint32_t src_w, uint32_t src_h) | |
2387 | { | |
2388 | int ret; | |
2389 | ||
2390 | drm_modeset_lock_all(plane->dev); | |
2391 | ret = __setplane_internal(plane, crtc, fb, | |
2392 | crtc_x, crtc_y, crtc_w, crtc_h, | |
2393 | src_x, src_y, src_w, src_h); | |
2394 | drm_modeset_unlock_all(plane->dev); | |
2395 | ||
2396 | return ret; | |
b36552b3 MR |
2397 | } |
2398 | ||
2399 | /** | |
2400 | * drm_mode_setplane - configure a plane's configuration | |
2401 | * @dev: DRM device | |
2402 | * @data: ioctl data* | |
2403 | * @file_priv: DRM file info | |
2404 | * | |
2405 | * Set plane configuration, including placement, fb, scaling, and other factors. | |
2406 | * Or pass a NULL fb to disable (planes may be disabled without providing a | |
2407 | * valid crtc). | |
2408 | * | |
2409 | * Returns: | |
1a498633 | 2410 | * Zero on success, negative errno on failure. |
b36552b3 MR |
2411 | */ |
2412 | int drm_mode_setplane(struct drm_device *dev, void *data, | |
2413 | struct drm_file *file_priv) | |
2414 | { | |
2415 | struct drm_mode_set_plane *plane_req = data; | |
b36552b3 MR |
2416 | struct drm_plane *plane; |
2417 | struct drm_crtc *crtc = NULL; | |
2418 | struct drm_framebuffer *fb = NULL; | |
2419 | ||
2420 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2421 | return -EINVAL; | |
2422 | ||
b36552b3 MR |
2423 | /* |
2424 | * First, find the plane, crtc, and fb objects. If not available, | |
2425 | * we don't bother to call the driver. | |
2426 | */ | |
933f622f RC |
2427 | plane = drm_plane_find(dev, plane_req->plane_id); |
2428 | if (!plane) { | |
b36552b3 MR |
2429 | DRM_DEBUG_KMS("Unknown plane ID %d\n", |
2430 | plane_req->plane_id); | |
2431 | return -ENOENT; | |
2432 | } | |
b36552b3 MR |
2433 | |
2434 | if (plane_req->fb_id) { | |
2435 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); | |
2436 | if (!fb) { | |
2437 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", | |
2438 | plane_req->fb_id); | |
2439 | return -ENOENT; | |
2440 | } | |
2441 | ||
933f622f RC |
2442 | crtc = drm_crtc_find(dev, plane_req->crtc_id); |
2443 | if (!crtc) { | |
b36552b3 MR |
2444 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", |
2445 | plane_req->crtc_id); | |
2446 | return -ENOENT; | |
2447 | } | |
b36552b3 MR |
2448 | } |
2449 | ||
161d0dc1 MR |
2450 | /* |
2451 | * setplane_internal will take care of deref'ing either the old or new | |
2452 | * framebuffer depending on success. | |
2453 | */ | |
17cfd91f | 2454 | return setplane_internal(plane, crtc, fb, |
b36552b3 MR |
2455 | plane_req->crtc_x, plane_req->crtc_y, |
2456 | plane_req->crtc_w, plane_req->crtc_h, | |
2457 | plane_req->src_x, plane_req->src_y, | |
2458 | plane_req->src_w, plane_req->src_h); | |
8cf5c917 JB |
2459 | } |
2460 | ||
2d13b679 DV |
2461 | /** |
2462 | * drm_mode_set_config_internal - helper to call ->set_config | |
2463 | * @set: modeset config to set | |
2464 | * | |
2465 | * This is a little helper to wrap internal calls to the ->set_config driver | |
2466 | * interface. The only thing it adds is correct refcounting dance. | |
4dfd909f | 2467 | * |
c8e32cc1 | 2468 | * Returns: |
1a498633 | 2469 | * Zero on success, negative errno on failure. |
2d13b679 DV |
2470 | */ |
2471 | int drm_mode_set_config_internal(struct drm_mode_set *set) | |
2472 | { | |
2473 | struct drm_crtc *crtc = set->crtc; | |
5cef29aa DV |
2474 | struct drm_framebuffer *fb; |
2475 | struct drm_crtc *tmp; | |
b0d12325 DV |
2476 | int ret; |
2477 | ||
5cef29aa DV |
2478 | /* |
2479 | * NOTE: ->set_config can also disable other crtcs (if we steal all | |
2480 | * connectors from it), hence we need to refcount the fbs across all | |
2481 | * crtcs. Atomic modeset will have saner semantics ... | |
2482 | */ | |
e4f62546 | 2483 | drm_for_each_crtc(tmp, crtc->dev) |
3d30a59b | 2484 | tmp->primary->old_fb = tmp->primary->fb; |
5cef29aa | 2485 | |
b0d12325 | 2486 | fb = set->fb; |
2d13b679 | 2487 | |
b0d12325 DV |
2488 | ret = crtc->funcs->set_config(set); |
2489 | if (ret == 0) { | |
e13161af | 2490 | crtc->primary->crtc = crtc; |
0fe27f06 | 2491 | crtc->primary->fb = fb; |
5cef29aa | 2492 | } |
cc85e121 | 2493 | |
e4f62546 | 2494 | drm_for_each_crtc(tmp, crtc->dev) { |
f4510a27 MR |
2495 | if (tmp->primary->fb) |
2496 | drm_framebuffer_reference(tmp->primary->fb); | |
3d30a59b DV |
2497 | if (tmp->primary->old_fb) |
2498 | drm_framebuffer_unreference(tmp->primary->old_fb); | |
2499 | tmp->primary->old_fb = NULL; | |
b0d12325 DV |
2500 | } |
2501 | ||
2502 | return ret; | |
2d13b679 DV |
2503 | } |
2504 | EXPORT_SYMBOL(drm_mode_set_config_internal); | |
2505 | ||
ecb7e16b GP |
2506 | /** |
2507 | * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode | |
2508 | * @mode: mode to query | |
2509 | * @hdisplay: hdisplay value to fill in | |
2510 | * @vdisplay: vdisplay value to fill in | |
2511 | * | |
2512 | * The vdisplay value will be doubled if the specified mode is a stereo mode of | |
2513 | * the appropriate layout. | |
2514 | */ | |
2515 | void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, | |
2516 | int *hdisplay, int *vdisplay) | |
2517 | { | |
2518 | struct drm_display_mode adjusted; | |
2519 | ||
2520 | drm_mode_copy(&adjusted, mode); | |
2521 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); | |
2522 | *hdisplay = adjusted.crtc_hdisplay; | |
2523 | *vdisplay = adjusted.crtc_vdisplay; | |
2524 | } | |
2525 | EXPORT_SYMBOL(drm_crtc_get_hv_timing); | |
2526 | ||
af93629d MR |
2527 | /** |
2528 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the | |
2529 | * CRTC viewport | |
2530 | * @crtc: CRTC that framebuffer will be displayed on | |
2531 | * @x: x panning | |
2532 | * @y: y panning | |
2533 | * @mode: mode that framebuffer will be displayed under | |
2534 | * @fb: framebuffer to check size of | |
c11e9283 | 2535 | */ |
af93629d MR |
2536 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
2537 | int x, int y, | |
2538 | const struct drm_display_mode *mode, | |
2539 | const struct drm_framebuffer *fb) | |
c11e9283 DL |
2540 | |
2541 | { | |
2542 | int hdisplay, vdisplay; | |
2543 | ||
ecb7e16b | 2544 | drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); |
a0c1bbb0 | 2545 | |
c11e9283 DL |
2546 | if (crtc->invert_dimensions) |
2547 | swap(hdisplay, vdisplay); | |
2548 | ||
2549 | if (hdisplay > fb->width || | |
2550 | vdisplay > fb->height || | |
2551 | x > fb->width - hdisplay || | |
2552 | y > fb->height - vdisplay) { | |
2553 | DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", | |
2554 | fb->width, fb->height, hdisplay, vdisplay, x, y, | |
2555 | crtc->invert_dimensions ? " (inverted)" : ""); | |
2556 | return -ENOSPC; | |
2557 | } | |
2558 | ||
2559 | return 0; | |
2560 | } | |
af93629d | 2561 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
c11e9283 | 2562 | |
f453ba04 DA |
2563 | /** |
2564 | * drm_mode_setcrtc - set CRTC configuration | |
065a50ed DV |
2565 | * @dev: drm device for the ioctl |
2566 | * @data: data pointer for the ioctl | |
2567 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2568 | * |
f453ba04 DA |
2569 | * Build a new CRTC configuration based on user request. |
2570 | * | |
2571 | * Called by the user via ioctl. | |
2572 | * | |
c8e32cc1 | 2573 | * Returns: |
1a498633 | 2574 | * Zero on success, negative errno on failure. |
f453ba04 DA |
2575 | */ |
2576 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
2577 | struct drm_file *file_priv) | |
2578 | { | |
2579 | struct drm_mode_config *config = &dev->mode_config; | |
2580 | struct drm_mode_crtc *crtc_req = data; | |
6653cc8d | 2581 | struct drm_crtc *crtc; |
f453ba04 DA |
2582 | struct drm_connector **connector_set = NULL, *connector; |
2583 | struct drm_framebuffer *fb = NULL; | |
2584 | struct drm_display_mode *mode = NULL; | |
2585 | struct drm_mode_set set; | |
2586 | uint32_t __user *set_connectors_ptr; | |
4a1b0714 | 2587 | int ret; |
f453ba04 DA |
2588 | int i; |
2589 | ||
fb3b06c8 DA |
2590 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2591 | return -EINVAL; | |
2592 | ||
01447e9f ZJ |
2593 | /* |
2594 | * Universal plane src offsets are only 16.16, prevent havoc for | |
2595 | * drivers using universal plane code internally. | |
2596 | */ | |
2597 | if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000) | |
1d97e915 VS |
2598 | return -ERANGE; |
2599 | ||
84849903 | 2600 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
2601 | crtc = drm_crtc_find(dev, crtc_req->crtc_id); |
2602 | if (!crtc) { | |
58367ed6 | 2603 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
f27657f2 | 2604 | ret = -ENOENT; |
f453ba04 DA |
2605 | goto out; |
2606 | } | |
9440106b | 2607 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
2608 | |
2609 | if (crtc_req->mode_valid) { | |
2610 | /* If we have a mode we need a framebuffer. */ | |
2611 | /* If we pass -1, set the mode with the currently bound fb */ | |
2612 | if (crtc_req->fb_id == -1) { | |
f4510a27 | 2613 | if (!crtc->primary->fb) { |
6653cc8d VS |
2614 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
2615 | ret = -EINVAL; | |
2616 | goto out; | |
f453ba04 | 2617 | } |
f4510a27 | 2618 | fb = crtc->primary->fb; |
b0d12325 DV |
2619 | /* Make refcounting symmetric with the lookup path. */ |
2620 | drm_framebuffer_reference(fb); | |
f453ba04 | 2621 | } else { |
786b99ed DV |
2622 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
2623 | if (!fb) { | |
58367ed6 ZY |
2624 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
2625 | crtc_req->fb_id); | |
37c4e705 | 2626 | ret = -ENOENT; |
f453ba04 DA |
2627 | goto out; |
2628 | } | |
f453ba04 DA |
2629 | } |
2630 | ||
2631 | mode = drm_mode_create(dev); | |
ee34ab5b VS |
2632 | if (!mode) { |
2633 | ret = -ENOMEM; | |
2634 | goto out; | |
2635 | } | |
2636 | ||
934a8a89 | 2637 | ret = drm_mode_convert_umode(mode, &crtc_req->mode); |
90367bf6 VS |
2638 | if (ret) { |
2639 | DRM_DEBUG_KMS("Invalid mode\n"); | |
2640 | goto out; | |
2641 | } | |
2642 | ||
f453ba04 | 2643 | drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); |
5f61bb42 | 2644 | |
7eb5f302 LP |
2645 | /* |
2646 | * Check whether the primary plane supports the fb pixel format. | |
2647 | * Drivers not implementing the universal planes API use a | |
2648 | * default formats list provided by the DRM core which doesn't | |
2649 | * match real hardware capabilities. Skip the check in that | |
2650 | * case. | |
2651 | */ | |
2652 | if (!crtc->primary->format_default) { | |
2653 | ret = drm_plane_check_pixel_format(crtc->primary, | |
2654 | fb->pixel_format); | |
2655 | if (ret) { | |
2656 | DRM_DEBUG_KMS("Invalid pixel format %s\n", | |
2657 | drm_get_format_name(fb->pixel_format)); | |
2658 | goto out; | |
2659 | } | |
2660 | } | |
2661 | ||
c11e9283 DL |
2662 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
2663 | mode, fb); | |
2664 | if (ret) | |
5f61bb42 | 2665 | goto out; |
c11e9283 | 2666 | |
f453ba04 DA |
2667 | } |
2668 | ||
2669 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 2670 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
2671 | ret = -EINVAL; |
2672 | goto out; | |
2673 | } | |
2674 | ||
7781de74 | 2675 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
58367ed6 | 2676 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
2677 | crtc_req->count_connectors); |
2678 | ret = -EINVAL; | |
2679 | goto out; | |
2680 | } | |
2681 | ||
2682 | if (crtc_req->count_connectors > 0) { | |
2683 | u32 out_id; | |
2684 | ||
2685 | /* Avoid unbounded kernel memory allocation */ | |
2686 | if (crtc_req->count_connectors > config->num_connector) { | |
2687 | ret = -EINVAL; | |
2688 | goto out; | |
2689 | } | |
2690 | ||
2f6c5389 TR |
2691 | connector_set = kmalloc_array(crtc_req->count_connectors, |
2692 | sizeof(struct drm_connector *), | |
2693 | GFP_KERNEL); | |
f453ba04 DA |
2694 | if (!connector_set) { |
2695 | ret = -ENOMEM; | |
2696 | goto out; | |
2697 | } | |
2698 | ||
2699 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
81f6c7f8 | 2700 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
f453ba04 DA |
2701 | if (get_user(out_id, &set_connectors_ptr[i])) { |
2702 | ret = -EFAULT; | |
2703 | goto out; | |
2704 | } | |
2705 | ||
a2b34e22 RC |
2706 | connector = drm_connector_find(dev, out_id); |
2707 | if (!connector) { | |
58367ed6 ZY |
2708 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
2709 | out_id); | |
f27657f2 | 2710 | ret = -ENOENT; |
f453ba04 DA |
2711 | goto out; |
2712 | } | |
9440106b JG |
2713 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
2714 | connector->base.id, | |
25933820 | 2715 | connector->name); |
f453ba04 DA |
2716 | |
2717 | connector_set[i] = connector; | |
2718 | } | |
2719 | } | |
2720 | ||
2721 | set.crtc = crtc; | |
2722 | set.x = crtc_req->x; | |
2723 | set.y = crtc_req->y; | |
2724 | set.mode = mode; | |
2725 | set.connectors = connector_set; | |
2726 | set.num_connectors = crtc_req->count_connectors; | |
5ef5f72f | 2727 | set.fb = fb; |
2d13b679 | 2728 | ret = drm_mode_set_config_internal(&set); |
f453ba04 DA |
2729 | |
2730 | out: | |
b0d12325 DV |
2731 | if (fb) |
2732 | drm_framebuffer_unreference(fb); | |
2733 | ||
f453ba04 | 2734 | kfree(connector_set); |
ee34ab5b | 2735 | drm_mode_destroy(dev, mode); |
84849903 | 2736 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2737 | return ret; |
2738 | } | |
2739 | ||
161d0dc1 MR |
2740 | /** |
2741 | * drm_mode_cursor_universal - translate legacy cursor ioctl call into a | |
2742 | * universal plane handler call | |
2743 | * @crtc: crtc to update cursor for | |
2744 | * @req: data pointer for the ioctl | |
2745 | * @file_priv: drm file for the ioctl call | |
2746 | * | |
2747 | * Legacy cursor ioctl's work directly with driver buffer handles. To | |
2748 | * translate legacy ioctl calls into universal plane handler calls, we need to | |
2749 | * wrap the native buffer handle in a drm_framebuffer. | |
2750 | * | |
2751 | * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB | |
2752 | * buffer with a pitch of 4*width; the universal plane interface should be used | |
2753 | * directly in cases where the hardware can support other buffer settings and | |
2754 | * userspace wants to make use of these capabilities. | |
2755 | * | |
2756 | * Returns: | |
1a498633 | 2757 | * Zero on success, negative errno on failure. |
161d0dc1 MR |
2758 | */ |
2759 | static int drm_mode_cursor_universal(struct drm_crtc *crtc, | |
2760 | struct drm_mode_cursor2 *req, | |
2761 | struct drm_file *file_priv) | |
2762 | { | |
2763 | struct drm_device *dev = crtc->dev; | |
2764 | struct drm_framebuffer *fb = NULL; | |
2765 | struct drm_mode_fb_cmd2 fbreq = { | |
2766 | .width = req->width, | |
2767 | .height = req->height, | |
2768 | .pixel_format = DRM_FORMAT_ARGB8888, | |
2769 | .pitches = { req->width * 4 }, | |
2770 | .handles = { req->handle }, | |
2771 | }; | |
2772 | int32_t crtc_x, crtc_y; | |
2773 | uint32_t crtc_w = 0, crtc_h = 0; | |
2774 | uint32_t src_w = 0, src_h = 0; | |
2775 | int ret = 0; | |
2776 | ||
2777 | BUG_ON(!crtc->cursor); | |
f2b50c11 | 2778 | WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL); |
161d0dc1 MR |
2779 | |
2780 | /* | |
2781 | * Obtain fb we'll be using (either new or existing) and take an extra | |
2782 | * reference to it if fb != null. setplane will take care of dropping | |
2783 | * the reference if the plane update fails. | |
2784 | */ | |
2785 | if (req->flags & DRM_MODE_CURSOR_BO) { | |
2786 | if (req->handle) { | |
9a6f5130 | 2787 | fb = internal_framebuffer_create(dev, &fbreq, file_priv); |
161d0dc1 MR |
2788 | if (IS_ERR(fb)) { |
2789 | DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n"); | |
2790 | return PTR_ERR(fb); | |
2791 | } | |
161d0dc1 MR |
2792 | } else { |
2793 | fb = NULL; | |
2794 | } | |
2795 | } else { | |
161d0dc1 MR |
2796 | fb = crtc->cursor->fb; |
2797 | if (fb) | |
2798 | drm_framebuffer_reference(fb); | |
161d0dc1 MR |
2799 | } |
2800 | ||
2801 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
2802 | crtc_x = req->x; | |
2803 | crtc_y = req->y; | |
2804 | } else { | |
2805 | crtc_x = crtc->cursor_x; | |
2806 | crtc_y = crtc->cursor_y; | |
2807 | } | |
2808 | ||
2809 | if (fb) { | |
2810 | crtc_w = fb->width; | |
2811 | crtc_h = fb->height; | |
2812 | src_w = fb->width << 16; | |
2813 | src_h = fb->height << 16; | |
2814 | } | |
2815 | ||
2816 | /* | |
2817 | * setplane_internal will take care of deref'ing either the old or new | |
2818 | * framebuffer depending on success. | |
2819 | */ | |
f2b50c11 | 2820 | ret = __setplane_internal(crtc->cursor, crtc, fb, |
161d0dc1 MR |
2821 | crtc_x, crtc_y, crtc_w, crtc_h, |
2822 | 0, 0, src_w, src_h); | |
2823 | ||
2824 | /* Update successful; save new cursor position, if necessary */ | |
2825 | if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) { | |
2826 | crtc->cursor_x = req->x; | |
2827 | crtc->cursor_y = req->y; | |
2828 | } | |
2829 | ||
2830 | return ret; | |
2831 | } | |
2832 | ||
4c813d4d DA |
2833 | static int drm_mode_cursor_common(struct drm_device *dev, |
2834 | struct drm_mode_cursor2 *req, | |
2835 | struct drm_file *file_priv) | |
f453ba04 | 2836 | { |
f453ba04 DA |
2837 | struct drm_crtc *crtc; |
2838 | int ret = 0; | |
2839 | ||
fb3b06c8 DA |
2840 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2841 | return -EINVAL; | |
2842 | ||
7c4eaca4 | 2843 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
f453ba04 | 2844 | return -EINVAL; |
f453ba04 | 2845 | |
a2b34e22 RC |
2846 | crtc = drm_crtc_find(dev, req->crtc_id); |
2847 | if (!crtc) { | |
58367ed6 | 2848 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
f27657f2 | 2849 | return -ENOENT; |
f453ba04 | 2850 | } |
f453ba04 | 2851 | |
161d0dc1 MR |
2852 | /* |
2853 | * If this crtc has a universal cursor plane, call that plane's update | |
2854 | * handler rather than using legacy cursor handlers. | |
2855 | */ | |
4d02e2de | 2856 | drm_modeset_lock_crtc(crtc, crtc->cursor); |
f2b50c11 DV |
2857 | if (crtc->cursor) { |
2858 | ret = drm_mode_cursor_universal(crtc, req, file_priv); | |
2859 | goto out; | |
2860 | } | |
2861 | ||
f453ba04 | 2862 | if (req->flags & DRM_MODE_CURSOR_BO) { |
4c813d4d | 2863 | if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { |
f453ba04 DA |
2864 | ret = -ENXIO; |
2865 | goto out; | |
2866 | } | |
2867 | /* Turns off the cursor if handle is 0 */ | |
4c813d4d DA |
2868 | if (crtc->funcs->cursor_set2) |
2869 | ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, | |
2870 | req->width, req->height, req->hot_x, req->hot_y); | |
2871 | else | |
2872 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, | |
2873 | req->width, req->height); | |
f453ba04 DA |
2874 | } |
2875 | ||
2876 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
2877 | if (crtc->funcs->cursor_move) { | |
2878 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); | |
2879 | } else { | |
f453ba04 DA |
2880 | ret = -EFAULT; |
2881 | goto out; | |
2882 | } | |
2883 | } | |
2884 | out: | |
d059f652 | 2885 | drm_modeset_unlock_crtc(crtc); |
dac35663 | 2886 | |
f453ba04 | 2887 | return ret; |
4c813d4d DA |
2888 | |
2889 | } | |
c8e32cc1 DV |
2890 | |
2891 | ||
2892 | /** | |
2893 | * drm_mode_cursor_ioctl - set CRTC's cursor configuration | |
2894 | * @dev: drm device for the ioctl | |
2895 | * @data: data pointer for the ioctl | |
2896 | * @file_priv: drm file for the ioctl call | |
2897 | * | |
2898 | * Set the cursor configuration based on user request. | |
2899 | * | |
2900 | * Called by the user via ioctl. | |
2901 | * | |
2902 | * Returns: | |
1a498633 | 2903 | * Zero on success, negative errno on failure. |
c8e32cc1 | 2904 | */ |
4c813d4d | 2905 | int drm_mode_cursor_ioctl(struct drm_device *dev, |
c8e32cc1 | 2906 | void *data, struct drm_file *file_priv) |
4c813d4d DA |
2907 | { |
2908 | struct drm_mode_cursor *req = data; | |
2909 | struct drm_mode_cursor2 new_req; | |
2910 | ||
2911 | memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); | |
2912 | new_req.hot_x = new_req.hot_y = 0; | |
2913 | ||
2914 | return drm_mode_cursor_common(dev, &new_req, file_priv); | |
2915 | } | |
2916 | ||
c8e32cc1 DV |
2917 | /** |
2918 | * drm_mode_cursor2_ioctl - set CRTC's cursor configuration | |
2919 | * @dev: drm device for the ioctl | |
2920 | * @data: data pointer for the ioctl | |
2921 | * @file_priv: drm file for the ioctl call | |
2922 | * | |
2923 | * Set the cursor configuration based on user request. This implements the 2nd | |
2924 | * version of the cursor ioctl, which allows userspace to additionally specify | |
2925 | * the hotspot of the pointer. | |
2926 | * | |
2927 | * Called by the user via ioctl. | |
2928 | * | |
2929 | * Returns: | |
1a498633 | 2930 | * Zero on success, negative errno on failure. |
c8e32cc1 | 2931 | */ |
4c813d4d DA |
2932 | int drm_mode_cursor2_ioctl(struct drm_device *dev, |
2933 | void *data, struct drm_file *file_priv) | |
2934 | { | |
2935 | struct drm_mode_cursor2 *req = data; | |
4dfd909f | 2936 | |
4c813d4d | 2937 | return drm_mode_cursor_common(dev, req, file_priv); |
f453ba04 DA |
2938 | } |
2939 | ||
c8e32cc1 DV |
2940 | /** |
2941 | * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description | |
2942 | * @bpp: bits per pixels | |
2943 | * @depth: bit depth per pixel | |
2944 | * | |
2945 | * Computes a drm fourcc pixel format code for the given @bpp/@depth values. | |
2946 | * Useful in fbdev emulation code, since that deals in those values. | |
2947 | */ | |
308e5bcb JB |
2948 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) |
2949 | { | |
2950 | uint32_t fmt; | |
2951 | ||
2952 | switch (bpp) { | |
2953 | case 8: | |
d84f031b | 2954 | fmt = DRM_FORMAT_C8; |
308e5bcb JB |
2955 | break; |
2956 | case 16: | |
2957 | if (depth == 15) | |
04b3924d | 2958 | fmt = DRM_FORMAT_XRGB1555; |
308e5bcb | 2959 | else |
04b3924d | 2960 | fmt = DRM_FORMAT_RGB565; |
308e5bcb JB |
2961 | break; |
2962 | case 24: | |
04b3924d | 2963 | fmt = DRM_FORMAT_RGB888; |
308e5bcb JB |
2964 | break; |
2965 | case 32: | |
2966 | if (depth == 24) | |
04b3924d | 2967 | fmt = DRM_FORMAT_XRGB8888; |
308e5bcb | 2968 | else if (depth == 30) |
04b3924d | 2969 | fmt = DRM_FORMAT_XRGB2101010; |
308e5bcb | 2970 | else |
04b3924d | 2971 | fmt = DRM_FORMAT_ARGB8888; |
308e5bcb JB |
2972 | break; |
2973 | default: | |
04b3924d VS |
2974 | DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); |
2975 | fmt = DRM_FORMAT_XRGB8888; | |
308e5bcb JB |
2976 | break; |
2977 | } | |
2978 | ||
2979 | return fmt; | |
2980 | } | |
2981 | EXPORT_SYMBOL(drm_mode_legacy_fb_format); | |
2982 | ||
f453ba04 DA |
2983 | /** |
2984 | * drm_mode_addfb - add an FB to the graphics configuration | |
065a50ed DV |
2985 | * @dev: drm device for the ioctl |
2986 | * @data: data pointer for the ioctl | |
2987 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2988 | * |
c8e32cc1 | 2989 | * Add a new FB to the specified CRTC, given a user request. This is the |
209f5527 | 2990 | * original addfb ioctl which only supported RGB formats. |
f453ba04 DA |
2991 | * |
2992 | * Called by the user via ioctl. | |
2993 | * | |
c8e32cc1 | 2994 | * Returns: |
1a498633 | 2995 | * Zero on success, negative errno on failure. |
f453ba04 DA |
2996 | */ |
2997 | int drm_mode_addfb(struct drm_device *dev, | |
2998 | void *data, struct drm_file *file_priv) | |
2999 | { | |
308e5bcb JB |
3000 | struct drm_mode_fb_cmd *or = data; |
3001 | struct drm_mode_fb_cmd2 r = {}; | |
228f2cb3 | 3002 | int ret; |
308e5bcb | 3003 | |
228f2cb3 | 3004 | /* convert to new format and call new ioctl */ |
308e5bcb JB |
3005 | r.fb_id = or->fb_id; |
3006 | r.width = or->width; | |
3007 | r.height = or->height; | |
3008 | r.pitches[0] = or->pitch; | |
3009 | r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); | |
3010 | r.handles[0] = or->handle; | |
3011 | ||
228f2cb3 CE |
3012 | ret = drm_mode_addfb2(dev, &r, file_priv); |
3013 | if (ret) | |
3014 | return ret; | |
308e5bcb | 3015 | |
228f2cb3 | 3016 | or->fb_id = r.fb_id; |
4b096ac1 | 3017 | |
baf698b0 | 3018 | return 0; |
308e5bcb JB |
3019 | } |
3020 | ||
cff91b62 | 3021 | static int format_check(const struct drm_mode_fb_cmd2 *r) |
935b5977 VS |
3022 | { |
3023 | uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; | |
3024 | ||
3025 | switch (format) { | |
3026 | case DRM_FORMAT_C8: | |
3027 | case DRM_FORMAT_RGB332: | |
3028 | case DRM_FORMAT_BGR233: | |
3029 | case DRM_FORMAT_XRGB4444: | |
3030 | case DRM_FORMAT_XBGR4444: | |
3031 | case DRM_FORMAT_RGBX4444: | |
3032 | case DRM_FORMAT_BGRX4444: | |
3033 | case DRM_FORMAT_ARGB4444: | |
3034 | case DRM_FORMAT_ABGR4444: | |
3035 | case DRM_FORMAT_RGBA4444: | |
3036 | case DRM_FORMAT_BGRA4444: | |
3037 | case DRM_FORMAT_XRGB1555: | |
3038 | case DRM_FORMAT_XBGR1555: | |
3039 | case DRM_FORMAT_RGBX5551: | |
3040 | case DRM_FORMAT_BGRX5551: | |
3041 | case DRM_FORMAT_ARGB1555: | |
3042 | case DRM_FORMAT_ABGR1555: | |
3043 | case DRM_FORMAT_RGBA5551: | |
3044 | case DRM_FORMAT_BGRA5551: | |
3045 | case DRM_FORMAT_RGB565: | |
3046 | case DRM_FORMAT_BGR565: | |
3047 | case DRM_FORMAT_RGB888: | |
3048 | case DRM_FORMAT_BGR888: | |
3049 | case DRM_FORMAT_XRGB8888: | |
3050 | case DRM_FORMAT_XBGR8888: | |
3051 | case DRM_FORMAT_RGBX8888: | |
3052 | case DRM_FORMAT_BGRX8888: | |
3053 | case DRM_FORMAT_ARGB8888: | |
3054 | case DRM_FORMAT_ABGR8888: | |
3055 | case DRM_FORMAT_RGBA8888: | |
3056 | case DRM_FORMAT_BGRA8888: | |
3057 | case DRM_FORMAT_XRGB2101010: | |
3058 | case DRM_FORMAT_XBGR2101010: | |
3059 | case DRM_FORMAT_RGBX1010102: | |
3060 | case DRM_FORMAT_BGRX1010102: | |
3061 | case DRM_FORMAT_ARGB2101010: | |
3062 | case DRM_FORMAT_ABGR2101010: | |
3063 | case DRM_FORMAT_RGBA1010102: | |
3064 | case DRM_FORMAT_BGRA1010102: | |
3065 | case DRM_FORMAT_YUYV: | |
3066 | case DRM_FORMAT_YVYU: | |
3067 | case DRM_FORMAT_UYVY: | |
3068 | case DRM_FORMAT_VYUY: | |
3069 | case DRM_FORMAT_AYUV: | |
3070 | case DRM_FORMAT_NV12: | |
3071 | case DRM_FORMAT_NV21: | |
3072 | case DRM_FORMAT_NV16: | |
3073 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
3074 | case DRM_FORMAT_NV24: |
3075 | case DRM_FORMAT_NV42: | |
935b5977 VS |
3076 | case DRM_FORMAT_YUV410: |
3077 | case DRM_FORMAT_YVU410: | |
3078 | case DRM_FORMAT_YUV411: | |
3079 | case DRM_FORMAT_YVU411: | |
3080 | case DRM_FORMAT_YUV420: | |
3081 | case DRM_FORMAT_YVU420: | |
3082 | case DRM_FORMAT_YUV422: | |
3083 | case DRM_FORMAT_YVU422: | |
3084 | case DRM_FORMAT_YUV444: | |
3085 | case DRM_FORMAT_YVU444: | |
3086 | return 0; | |
3087 | default: | |
23c453a4 VS |
3088 | DRM_DEBUG_KMS("invalid pixel format %s\n", |
3089 | drm_get_format_name(r->pixel_format)); | |
935b5977 VS |
3090 | return -EINVAL; |
3091 | } | |
3092 | } | |
3093 | ||
cff91b62 | 3094 | static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) |
d1b45d5f VS |
3095 | { |
3096 | int ret, hsub, vsub, num_planes, i; | |
3097 | ||
3098 | ret = format_check(r); | |
3099 | if (ret) { | |
6ba6d03e VS |
3100 | DRM_DEBUG_KMS("bad framebuffer format %s\n", |
3101 | drm_get_format_name(r->pixel_format)); | |
d1b45d5f VS |
3102 | return ret; |
3103 | } | |
3104 | ||
3105 | hsub = drm_format_horz_chroma_subsampling(r->pixel_format); | |
3106 | vsub = drm_format_vert_chroma_subsampling(r->pixel_format); | |
3107 | num_planes = drm_format_num_planes(r->pixel_format); | |
3108 | ||
3109 | if (r->width == 0 || r->width % hsub) { | |
209f5527 | 3110 | DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width); |
d1b45d5f VS |
3111 | return -EINVAL; |
3112 | } | |
3113 | ||
3114 | if (r->height == 0 || r->height % vsub) { | |
1aa1b11c | 3115 | DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); |
d1b45d5f VS |
3116 | return -EINVAL; |
3117 | } | |
3118 | ||
3119 | for (i = 0; i < num_planes; i++) { | |
3120 | unsigned int width = r->width / (i != 0 ? hsub : 1); | |
b180b5d1 VS |
3121 | unsigned int height = r->height / (i != 0 ? vsub : 1); |
3122 | unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); | |
d1b45d5f VS |
3123 | |
3124 | if (!r->handles[i]) { | |
1aa1b11c | 3125 | DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); |
d1b45d5f VS |
3126 | return -EINVAL; |
3127 | } | |
3128 | ||
b180b5d1 VS |
3129 | if ((uint64_t) width * cpp > UINT_MAX) |
3130 | return -ERANGE; | |
3131 | ||
3132 | if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) | |
3133 | return -ERANGE; | |
3134 | ||
3135 | if (r->pitches[i] < width * cpp) { | |
1aa1b11c | 3136 | DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); |
d1b45d5f VS |
3137 | return -EINVAL; |
3138 | } | |
e3eb3250 RC |
3139 | |
3140 | if (r->modifier[i] && !(r->flags & DRM_MODE_FB_MODIFIERS)) { | |
3141 | DRM_DEBUG_KMS("bad fb modifier %llu for plane %d\n", | |
3142 | r->modifier[i], i); | |
3143 | return -EINVAL; | |
3144 | } | |
570655b0 RC |
3145 | |
3146 | /* modifier specific checks: */ | |
3147 | switch (r->modifier[i]) { | |
3148 | case DRM_FORMAT_MOD_SAMSUNG_64_32_TILE: | |
3149 | /* NOTE: the pitch restriction may be lifted later if it turns | |
3150 | * out that no hw has this restriction: | |
3151 | */ | |
3152 | if (r->pixel_format != DRM_FORMAT_NV12 || | |
3153 | width % 128 || height % 32 || | |
3154 | r->pitches[i] % 128) { | |
3155 | DRM_DEBUG_KMS("bad modifier data for plane %d\n", i); | |
3156 | return -EINVAL; | |
3157 | } | |
3158 | break; | |
3159 | ||
3160 | default: | |
3161 | break; | |
3162 | } | |
d1b45d5f VS |
3163 | } |
3164 | ||
bbe16a40 DV |
3165 | for (i = num_planes; i < 4; i++) { |
3166 | if (r->modifier[i]) { | |
3167 | DRM_DEBUG_KMS("non-zero modifier for unused plane %d\n", i); | |
3168 | return -EINVAL; | |
3169 | } | |
3170 | ||
3171 | /* Pre-FB_MODIFIERS userspace didn't clear the structs properly. */ | |
3172 | if (!(r->flags & DRM_MODE_FB_MODIFIERS)) | |
3173 | continue; | |
3174 | ||
3175 | if (r->handles[i]) { | |
3176 | DRM_DEBUG_KMS("buffer object handle for unused plane %d\n", i); | |
3177 | return -EINVAL; | |
3178 | } | |
3179 | ||
3180 | if (r->pitches[i]) { | |
3181 | DRM_DEBUG_KMS("non-zero pitch for unused plane %d\n", i); | |
3182 | return -EINVAL; | |
3183 | } | |
3184 | ||
3185 | if (r->offsets[i]) { | |
3186 | DRM_DEBUG_KMS("non-zero offset for unused plane %d\n", i); | |
3187 | return -EINVAL; | |
3188 | } | |
3189 | } | |
3190 | ||
d1b45d5f VS |
3191 | return 0; |
3192 | } | |
3193 | ||
9a6f5130 CW |
3194 | static struct drm_framebuffer * |
3195 | internal_framebuffer_create(struct drm_device *dev, | |
3196 | struct drm_mode_fb_cmd2 *r, | |
3197 | struct drm_file *file_priv) | |
308e5bcb | 3198 | { |
f453ba04 DA |
3199 | struct drm_mode_config *config = &dev->mode_config; |
3200 | struct drm_framebuffer *fb; | |
4a1b0714 | 3201 | int ret; |
f453ba04 | 3202 | |
e3eb3250 | 3203 | if (r->flags & ~(DRM_MODE_FB_INTERLACED | DRM_MODE_FB_MODIFIERS)) { |
e3cc3520 | 3204 | DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); |
c394c2b0 | 3205 | return ERR_PTR(-EINVAL); |
e3cc3520 VS |
3206 | } |
3207 | ||
f453ba04 | 3208 | if ((config->min_width > r->width) || (r->width > config->max_width)) { |
1aa1b11c | 3209 | DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", |
8cf5c917 | 3210 | r->width, config->min_width, config->max_width); |
c394c2b0 | 3211 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
3212 | } |
3213 | if ((config->min_height > r->height) || (r->height > config->max_height)) { | |
1aa1b11c | 3214 | DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", |
8cf5c917 | 3215 | r->height, config->min_height, config->max_height); |
c394c2b0 | 3216 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
3217 | } |
3218 | ||
e3eb3250 RC |
3219 | if (r->flags & DRM_MODE_FB_MODIFIERS && |
3220 | !dev->mode_config.allow_fb_modifiers) { | |
3221 | DRM_DEBUG_KMS("driver does not support fb modifiers\n"); | |
3222 | return ERR_PTR(-EINVAL); | |
3223 | } | |
3224 | ||
d1b45d5f VS |
3225 | ret = framebuffer_check(r); |
3226 | if (ret) | |
c394c2b0 | 3227 | return ERR_PTR(ret); |
935b5977 | 3228 | |
f453ba04 | 3229 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
cce13ff7 | 3230 | if (IS_ERR(fb)) { |
1aa1b11c | 3231 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
c394c2b0 | 3232 | return fb; |
f453ba04 DA |
3233 | } |
3234 | ||
c394c2b0 MR |
3235 | return fb; |
3236 | } | |
4b096ac1 | 3237 | |
c394c2b0 MR |
3238 | /** |
3239 | * drm_mode_addfb2 - add an FB to the graphics configuration | |
3240 | * @dev: drm device for the ioctl | |
3241 | * @data: data pointer for the ioctl | |
3242 | * @file_priv: drm file for the ioctl call | |
3243 | * | |
3244 | * Add a new FB to the specified CRTC, given a user request with format. This is | |
3245 | * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers | |
3246 | * and uses fourcc codes as pixel format specifiers. | |
3247 | * | |
3248 | * Called by the user via ioctl. | |
3249 | * | |
3250 | * Returns: | |
1a498633 | 3251 | * Zero on success, negative errno on failure. |
c394c2b0 MR |
3252 | */ |
3253 | int drm_mode_addfb2(struct drm_device *dev, | |
3254 | void *data, struct drm_file *file_priv) | |
3255 | { | |
9a6f5130 | 3256 | struct drm_mode_fb_cmd2 *r = data; |
c394c2b0 MR |
3257 | struct drm_framebuffer *fb; |
3258 | ||
3259 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3260 | return -EINVAL; | |
3261 | ||
9a6f5130 | 3262 | fb = internal_framebuffer_create(dev, r, file_priv); |
c394c2b0 MR |
3263 | if (IS_ERR(fb)) |
3264 | return PTR_ERR(fb); | |
3265 | ||
9a6f5130 CW |
3266 | /* Transfer ownership to the filp for reaping on close */ |
3267 | ||
3268 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); | |
3269 | mutex_lock(&file_priv->fbs_lock); | |
3270 | r->fb_id = fb->base.id; | |
3271 | list_add(&fb->filp_head, &file_priv->fbs); | |
3272 | mutex_unlock(&file_priv->fbs_lock); | |
3273 | ||
c394c2b0 | 3274 | return 0; |
f453ba04 DA |
3275 | } |
3276 | ||
3277 | /** | |
3278 | * drm_mode_rmfb - remove an FB from the configuration | |
065a50ed DV |
3279 | * @dev: drm device for the ioctl |
3280 | * @data: data pointer for the ioctl | |
3281 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3282 | * |
f453ba04 DA |
3283 | * Remove the FB specified by the user. |
3284 | * | |
3285 | * Called by the user via ioctl. | |
3286 | * | |
c8e32cc1 | 3287 | * Returns: |
1a498633 | 3288 | * Zero on success, negative errno on failure. |
f453ba04 DA |
3289 | */ |
3290 | int drm_mode_rmfb(struct drm_device *dev, | |
3291 | void *data, struct drm_file *file_priv) | |
3292 | { | |
f453ba04 DA |
3293 | struct drm_framebuffer *fb = NULL; |
3294 | struct drm_framebuffer *fbl = NULL; | |
3295 | uint32_t *id = data; | |
f453ba04 DA |
3296 | int found = 0; |
3297 | ||
fb3b06c8 DA |
3298 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3299 | return -EINVAL; | |
3300 | ||
4b096ac1 | 3301 | mutex_lock(&file_priv->fbs_lock); |
2b677e8c DV |
3302 | mutex_lock(&dev->mode_config.fb_lock); |
3303 | fb = __drm_framebuffer_lookup(dev, *id); | |
3304 | if (!fb) | |
3305 | goto fail_lookup; | |
3306 | ||
f453ba04 DA |
3307 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
3308 | if (fb == fbl) | |
3309 | found = 1; | |
2b677e8c DV |
3310 | if (!found) |
3311 | goto fail_lookup; | |
3312 | ||
3313 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
3314 | __drm_framebuffer_unregister(dev, fb); | |
f453ba04 | 3315 | |
4b096ac1 | 3316 | list_del_init(&fb->filp_head); |
2b677e8c | 3317 | mutex_unlock(&dev->mode_config.fb_lock); |
4b096ac1 | 3318 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 3319 | |
4b096ac1 | 3320 | drm_framebuffer_remove(fb); |
4b096ac1 | 3321 | |
2b677e8c DV |
3322 | return 0; |
3323 | ||
3324 | fail_lookup: | |
3325 | mutex_unlock(&dev->mode_config.fb_lock); | |
3326 | mutex_unlock(&file_priv->fbs_lock); | |
3327 | ||
37c4e705 | 3328 | return -ENOENT; |
f453ba04 DA |
3329 | } |
3330 | ||
3331 | /** | |
3332 | * drm_mode_getfb - get FB info | |
065a50ed DV |
3333 | * @dev: drm device for the ioctl |
3334 | * @data: data pointer for the ioctl | |
3335 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3336 | * |
f453ba04 DA |
3337 | * Lookup the FB given its ID and return info about it. |
3338 | * | |
3339 | * Called by the user via ioctl. | |
3340 | * | |
c8e32cc1 | 3341 | * Returns: |
1a498633 | 3342 | * Zero on success, negative errno on failure. |
f453ba04 DA |
3343 | */ |
3344 | int drm_mode_getfb(struct drm_device *dev, | |
3345 | void *data, struct drm_file *file_priv) | |
3346 | { | |
3347 | struct drm_mode_fb_cmd *r = data; | |
f453ba04 | 3348 | struct drm_framebuffer *fb; |
58c0dca1 | 3349 | int ret; |
f453ba04 | 3350 | |
fb3b06c8 DA |
3351 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3352 | return -EINVAL; | |
3353 | ||
786b99ed | 3354 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
58c0dca1 | 3355 | if (!fb) |
37c4e705 | 3356 | return -ENOENT; |
f453ba04 DA |
3357 | |
3358 | r->height = fb->height; | |
3359 | r->width = fb->width; | |
3360 | r->depth = fb->depth; | |
3361 | r->bpp = fb->bits_per_pixel; | |
01f2c773 | 3362 | r->pitch = fb->pitches[0]; |
101b96f3 | 3363 | if (fb->funcs->create_handle) { |
09f308f7 | 3364 | if (file_priv->is_master || capable(CAP_SYS_ADMIN) || |
43683057 | 3365 | drm_is_control_client(file_priv)) { |
101b96f3 DH |
3366 | ret = fb->funcs->create_handle(fb, file_priv, |
3367 | &r->handle); | |
3368 | } else { | |
3369 | /* GET_FB() is an unprivileged ioctl so we must not | |
3370 | * return a buffer-handle to non-master processes! For | |
3371 | * backwards-compatibility reasons, we cannot make | |
3372 | * GET_FB() privileged, so just return an invalid handle | |
3373 | * for non-masters. */ | |
3374 | r->handle = 0; | |
3375 | ret = 0; | |
3376 | } | |
3377 | } else { | |
af26ef3b | 3378 | ret = -ENODEV; |
101b96f3 | 3379 | } |
f453ba04 | 3380 | |
58c0dca1 DV |
3381 | drm_framebuffer_unreference(fb); |
3382 | ||
f453ba04 DA |
3383 | return ret; |
3384 | } | |
3385 | ||
c8e32cc1 DV |
3386 | /** |
3387 | * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB | |
3388 | * @dev: drm device for the ioctl | |
3389 | * @data: data pointer for the ioctl | |
3390 | * @file_priv: drm file for the ioctl call | |
3391 | * | |
3392 | * Lookup the FB and flush out the damaged area supplied by userspace as a clip | |
3393 | * rectangle list. Generic userspace which does frontbuffer rendering must call | |
3394 | * this ioctl to flush out the changes on manual-update display outputs, e.g. | |
3395 | * usb display-link, mipi manual update panels or edp panel self refresh modes. | |
3396 | * | |
3397 | * Modesetting drivers which always update the frontbuffer do not need to | |
3398 | * implement the corresponding ->dirty framebuffer callback. | |
3399 | * | |
3400 | * Called by the user via ioctl. | |
3401 | * | |
3402 | * Returns: | |
1a498633 | 3403 | * Zero on success, negative errno on failure. |
c8e32cc1 | 3404 | */ |
884840aa JB |
3405 | int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
3406 | void *data, struct drm_file *file_priv) | |
3407 | { | |
3408 | struct drm_clip_rect __user *clips_ptr; | |
3409 | struct drm_clip_rect *clips = NULL; | |
3410 | struct drm_mode_fb_dirty_cmd *r = data; | |
884840aa JB |
3411 | struct drm_framebuffer *fb; |
3412 | unsigned flags; | |
3413 | int num_clips; | |
4a1b0714 | 3414 | int ret; |
884840aa | 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); |
4ccf097f | 3420 | if (!fb) |
37c4e705 | 3421 | return -ENOENT; |
884840aa JB |
3422 | |
3423 | num_clips = r->num_clips; | |
81f6c7f8 | 3424 | clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; |
884840aa JB |
3425 | |
3426 | if (!num_clips != !clips_ptr) { | |
3427 | ret = -EINVAL; | |
3428 | goto out_err1; | |
3429 | } | |
3430 | ||
3431 | flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; | |
3432 | ||
3433 | /* If userspace annotates copy, clips must come in pairs */ | |
3434 | if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { | |
3435 | ret = -EINVAL; | |
3436 | goto out_err1; | |
3437 | } | |
3438 | ||
3439 | if (num_clips && clips_ptr) { | |
a5cd3351 XW |
3440 | if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { |
3441 | ret = -EINVAL; | |
3442 | goto out_err1; | |
3443 | } | |
bd3f0ff9 | 3444 | clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); |
884840aa JB |
3445 | if (!clips) { |
3446 | ret = -ENOMEM; | |
3447 | goto out_err1; | |
3448 | } | |
3449 | ||
3450 | ret = copy_from_user(clips, clips_ptr, | |
3451 | num_clips * sizeof(*clips)); | |
e902a358 DC |
3452 | if (ret) { |
3453 | ret = -EFAULT; | |
884840aa | 3454 | goto out_err2; |
e902a358 | 3455 | } |
884840aa JB |
3456 | } |
3457 | ||
3458 | if (fb->funcs->dirty) { | |
02b00162 TH |
3459 | ret = fb->funcs->dirty(fb, file_priv, flags, r->color, |
3460 | clips, num_clips); | |
884840aa JB |
3461 | } else { |
3462 | ret = -ENOSYS; | |
884840aa JB |
3463 | } |
3464 | ||
3465 | out_err2: | |
3466 | kfree(clips); | |
3467 | out_err1: | |
4ccf097f DV |
3468 | drm_framebuffer_unreference(fb); |
3469 | ||
884840aa JB |
3470 | return ret; |
3471 | } | |
3472 | ||
3473 | ||
f453ba04 DA |
3474 | /** |
3475 | * drm_fb_release - remove and free the FBs on this file | |
065a50ed | 3476 | * @priv: drm file for the ioctl |
f453ba04 | 3477 | * |
f453ba04 DA |
3478 | * Destroy all the FBs associated with @filp. |
3479 | * | |
3480 | * Called by the user via ioctl. | |
3481 | * | |
c8e32cc1 | 3482 | * Returns: |
1a498633 | 3483 | * Zero on success, negative errno on failure. |
f453ba04 | 3484 | */ |
ea39f835 | 3485 | void drm_fb_release(struct drm_file *priv) |
f453ba04 | 3486 | { |
f453ba04 DA |
3487 | struct drm_device *dev = priv->minor->dev; |
3488 | struct drm_framebuffer *fb, *tfb; | |
3489 | ||
1b116297 DV |
3490 | /* |
3491 | * When the file gets released that means no one else can access the fb | |
e2db726b | 3492 | * list any more, so no need to grab fpriv->fbs_lock. And we need to |
1b116297 DV |
3493 | * avoid upsetting lockdep since the universal cursor code adds a |
3494 | * framebuffer while holding mutex locks. | |
3495 | * | |
3496 | * Note that a real deadlock between fpriv->fbs_lock and the modeset | |
3497 | * locks is impossible here since no one else but this function can get | |
3498 | * at it any more. | |
3499 | */ | |
f453ba04 | 3500 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
2b677e8c DV |
3501 | |
3502 | mutex_lock(&dev->mode_config.fb_lock); | |
3503 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
3504 | __drm_framebuffer_unregister(dev, fb); | |
3505 | mutex_unlock(&dev->mode_config.fb_lock); | |
3506 | ||
4b096ac1 | 3507 | list_del_init(&fb->filp_head); |
2b677e8c DV |
3508 | |
3509 | /* This will also drop the fpriv->fbs reference. */ | |
f7eff60e | 3510 | drm_framebuffer_remove(fb); |
f453ba04 | 3511 | } |
f453ba04 DA |
3512 | } |
3513 | ||
c8e32cc1 DV |
3514 | /** |
3515 | * drm_property_create - create a new property type | |
3516 | * @dev: drm device | |
3517 | * @flags: flags specifying the property type | |
3518 | * @name: name of the property | |
3519 | * @num_values: number of pre-defined values | |
3520 | * | |
3521 | * This creates a new generic drm property which can then be attached to a drm | |
3522 | * object with drm_object_attach_property. The returned property object must be | |
3523 | * freed with drm_property_destroy. | |
3524 | * | |
3b5b9932 DL |
3525 | * Note that the DRM core keeps a per-device list of properties and that, if |
3526 | * drm_mode_config_cleanup() is called, it will destroy all properties created | |
3527 | * by the driver. | |
3528 | * | |
c8e32cc1 DV |
3529 | * Returns: |
3530 | * A pointer to the newly created property on success, NULL on failure. | |
3531 | */ | |
f453ba04 DA |
3532 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
3533 | const char *name, int num_values) | |
3534 | { | |
3535 | struct drm_property *property = NULL; | |
6bfc56aa | 3536 | int ret; |
f453ba04 DA |
3537 | |
3538 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); | |
3539 | if (!property) | |
3540 | return NULL; | |
3541 | ||
98f75de4 RC |
3542 | property->dev = dev; |
3543 | ||
f453ba04 | 3544 | if (num_values) { |
bd3f0ff9 TR |
3545 | property->values = kcalloc(num_values, sizeof(uint64_t), |
3546 | GFP_KERNEL); | |
f453ba04 DA |
3547 | if (!property->values) |
3548 | goto fail; | |
3549 | } | |
3550 | ||
6bfc56aa VS |
3551 | ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
3552 | if (ret) | |
3553 | goto fail; | |
3554 | ||
f453ba04 DA |
3555 | property->flags = flags; |
3556 | property->num_values = num_values; | |
3758b341 | 3557 | INIT_LIST_HEAD(&property->enum_list); |
f453ba04 | 3558 | |
471dd2ef | 3559 | if (name) { |
f453ba04 | 3560 | strncpy(property->name, name, DRM_PROP_NAME_LEN); |
471dd2ef VL |
3561 | property->name[DRM_PROP_NAME_LEN-1] = '\0'; |
3562 | } | |
f453ba04 DA |
3563 | |
3564 | list_add_tail(&property->head, &dev->mode_config.property_list); | |
5ea22f24 RC |
3565 | |
3566 | WARN_ON(!drm_property_type_valid(property)); | |
3567 | ||
f453ba04 DA |
3568 | return property; |
3569 | fail: | |
6bfc56aa | 3570 | kfree(property->values); |
f453ba04 DA |
3571 | kfree(property); |
3572 | return NULL; | |
3573 | } | |
3574 | EXPORT_SYMBOL(drm_property_create); | |
3575 | ||
c8e32cc1 | 3576 | /** |
2aa9d2bc | 3577 | * drm_property_create_enum - create a new enumeration property type |
c8e32cc1 DV |
3578 | * @dev: drm device |
3579 | * @flags: flags specifying the property type | |
3580 | * @name: name of the property | |
3581 | * @props: enumeration lists with property values | |
3582 | * @num_values: number of pre-defined values | |
3583 | * | |
3584 | * This creates a new generic drm property which can then be attached to a drm | |
3585 | * object with drm_object_attach_property. The returned property object must be | |
3586 | * freed with drm_property_destroy. | |
3587 | * | |
3588 | * Userspace is only allowed to set one of the predefined values for enumeration | |
3589 | * properties. | |
3590 | * | |
3591 | * Returns: | |
3592 | * A pointer to the newly created property on success, NULL on failure. | |
3593 | */ | |
4a67d391 SH |
3594 | struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
3595 | const char *name, | |
3596 | const struct drm_prop_enum_list *props, | |
3597 | int num_values) | |
3598 | { | |
3599 | struct drm_property *property; | |
3600 | int i, ret; | |
3601 | ||
3602 | flags |= DRM_MODE_PROP_ENUM; | |
3603 | ||
3604 | property = drm_property_create(dev, flags, name, num_values); | |
3605 | if (!property) | |
3606 | return NULL; | |
3607 | ||
3608 | for (i = 0; i < num_values; i++) { | |
3609 | ret = drm_property_add_enum(property, i, | |
3610 | props[i].type, | |
3611 | props[i].name); | |
3612 | if (ret) { | |
3613 | drm_property_destroy(dev, property); | |
3614 | return NULL; | |
3615 | } | |
3616 | } | |
3617 | ||
3618 | return property; | |
3619 | } | |
3620 | EXPORT_SYMBOL(drm_property_create_enum); | |
3621 | ||
c8e32cc1 | 3622 | /** |
2aa9d2bc | 3623 | * drm_property_create_bitmask - create a new bitmask property type |
c8e32cc1 DV |
3624 | * @dev: drm device |
3625 | * @flags: flags specifying the property type | |
3626 | * @name: name of the property | |
3627 | * @props: enumeration lists with property bitflags | |
295ee853 DV |
3628 | * @num_props: size of the @props array |
3629 | * @supported_bits: bitmask of all supported enumeration values | |
c8e32cc1 | 3630 | * |
295ee853 | 3631 | * This creates a new bitmask drm property which can then be attached to a drm |
c8e32cc1 DV |
3632 | * object with drm_object_attach_property. The returned property object must be |
3633 | * freed with drm_property_destroy. | |
3634 | * | |
3635 | * Compared to plain enumeration properties userspace is allowed to set any | |
3636 | * or'ed together combination of the predefined property bitflag values | |
3637 | * | |
3638 | * Returns: | |
3639 | * A pointer to the newly created property on success, NULL on failure. | |
3640 | */ | |
49e27545 RC |
3641 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
3642 | int flags, const char *name, | |
3643 | const struct drm_prop_enum_list *props, | |
7689ffb3 VS |
3644 | int num_props, |
3645 | uint64_t supported_bits) | |
49e27545 RC |
3646 | { |
3647 | struct drm_property *property; | |
7689ffb3 VS |
3648 | int i, ret, index = 0; |
3649 | int num_values = hweight64(supported_bits); | |
49e27545 RC |
3650 | |
3651 | flags |= DRM_MODE_PROP_BITMASK; | |
3652 | ||
3653 | property = drm_property_create(dev, flags, name, num_values); | |
3654 | if (!property) | |
3655 | return NULL; | |
7689ffb3 VS |
3656 | for (i = 0; i < num_props; i++) { |
3657 | if (!(supported_bits & (1ULL << props[i].type))) | |
3658 | continue; | |
49e27545 | 3659 | |
7689ffb3 VS |
3660 | if (WARN_ON(index >= num_values)) { |
3661 | drm_property_destroy(dev, property); | |
3662 | return NULL; | |
3663 | } | |
3664 | ||
3665 | ret = drm_property_add_enum(property, index++, | |
49e27545 RC |
3666 | props[i].type, |
3667 | props[i].name); | |
3668 | if (ret) { | |
3669 | drm_property_destroy(dev, property); | |
3670 | return NULL; | |
3671 | } | |
3672 | } | |
3673 | ||
3674 | return property; | |
3675 | } | |
3676 | EXPORT_SYMBOL(drm_property_create_bitmask); | |
3677 | ||
ebc44cf3 RC |
3678 | static struct drm_property *property_create_range(struct drm_device *dev, |
3679 | int flags, const char *name, | |
3680 | uint64_t min, uint64_t max) | |
3681 | { | |
3682 | struct drm_property *property; | |
3683 | ||
3684 | property = drm_property_create(dev, flags, name, 2); | |
3685 | if (!property) | |
3686 | return NULL; | |
3687 | ||
3688 | property->values[0] = min; | |
3689 | property->values[1] = max; | |
3690 | ||
3691 | return property; | |
3692 | } | |
3693 | ||
c8e32cc1 | 3694 | /** |
960cd9d4 | 3695 | * drm_property_create_range - create a new unsigned ranged property type |
c8e32cc1 DV |
3696 | * @dev: drm device |
3697 | * @flags: flags specifying the property type | |
3698 | * @name: name of the property | |
3699 | * @min: minimum value of the property | |
3700 | * @max: maximum value of the property | |
3701 | * | |
3702 | * This creates a new generic drm property which can then be attached to a drm | |
3703 | * object with drm_object_attach_property. The returned property object must be | |
3704 | * freed with drm_property_destroy. | |
3705 | * | |
960cd9d4 DV |
3706 | * Userspace is allowed to set any unsigned integer value in the (min, max) |
3707 | * range inclusive. | |
c8e32cc1 DV |
3708 | * |
3709 | * Returns: | |
3710 | * A pointer to the newly created property on success, NULL on failure. | |
3711 | */ | |
d9bc3c02 SH |
3712 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
3713 | const char *name, | |
3714 | uint64_t min, uint64_t max) | |
3715 | { | |
ebc44cf3 RC |
3716 | return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, |
3717 | name, min, max); | |
d9bc3c02 SH |
3718 | } |
3719 | EXPORT_SYMBOL(drm_property_create_range); | |
3720 | ||
960cd9d4 DV |
3721 | /** |
3722 | * drm_property_create_signed_range - create a new signed ranged property type | |
3723 | * @dev: drm device | |
3724 | * @flags: flags specifying the property type | |
3725 | * @name: name of the property | |
3726 | * @min: minimum value of the property | |
3727 | * @max: maximum value of the property | |
3728 | * | |
3729 | * This creates a new generic drm property which can then be attached to a drm | |
3730 | * object with drm_object_attach_property. The returned property object must be | |
3731 | * freed with drm_property_destroy. | |
3732 | * | |
3733 | * Userspace is allowed to set any signed integer value in the (min, max) | |
3734 | * range inclusive. | |
3735 | * | |
3736 | * Returns: | |
3737 | * A pointer to the newly created property on success, NULL on failure. | |
3738 | */ | |
ebc44cf3 RC |
3739 | struct drm_property *drm_property_create_signed_range(struct drm_device *dev, |
3740 | int flags, const char *name, | |
3741 | int64_t min, int64_t max) | |
3742 | { | |
3743 | return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, | |
3744 | name, I642U64(min), I642U64(max)); | |
3745 | } | |
3746 | EXPORT_SYMBOL(drm_property_create_signed_range); | |
3747 | ||
960cd9d4 DV |
3748 | /** |
3749 | * drm_property_create_object - create a new object property type | |
3750 | * @dev: drm device | |
3751 | * @flags: flags specifying the property type | |
3752 | * @name: name of the property | |
3753 | * @type: object type from DRM_MODE_OBJECT_* defines | |
3754 | * | |
3755 | * This creates a new generic drm property which can then be attached to a drm | |
3756 | * object with drm_object_attach_property. The returned property object must be | |
3757 | * freed with drm_property_destroy. | |
3758 | * | |
3759 | * Userspace is only allowed to set this to any property value of the given | |
3760 | * @type. Only useful for atomic properties, which is enforced. | |
3761 | * | |
3762 | * Returns: | |
3763 | * A pointer to the newly created property on success, NULL on failure. | |
3764 | */ | |
98f75de4 RC |
3765 | struct drm_property *drm_property_create_object(struct drm_device *dev, |
3766 | int flags, const char *name, uint32_t type) | |
3767 | { | |
3768 | struct drm_property *property; | |
3769 | ||
3770 | flags |= DRM_MODE_PROP_OBJECT; | |
3771 | ||
960cd9d4 DV |
3772 | if (WARN_ON(!(flags & DRM_MODE_PROP_ATOMIC))) |
3773 | return NULL; | |
3774 | ||
98f75de4 RC |
3775 | property = drm_property_create(dev, flags, name, 1); |
3776 | if (!property) | |
3777 | return NULL; | |
3778 | ||
3779 | property->values[0] = type; | |
3780 | ||
3781 | return property; | |
3782 | } | |
3783 | EXPORT_SYMBOL(drm_property_create_object); | |
3784 | ||
960cd9d4 DV |
3785 | /** |
3786 | * drm_property_create_bool - create a new boolean property type | |
3787 | * @dev: drm device | |
3788 | * @flags: flags specifying the property type | |
3789 | * @name: name of the property | |
3790 | * | |
3791 | * This creates a new generic drm property which can then be attached to a drm | |
3792 | * object with drm_object_attach_property. The returned property object must be | |
3793 | * freed with drm_property_destroy. | |
3794 | * | |
3795 | * This is implemented as a ranged property with only {0, 1} as valid values. | |
3796 | * | |
3797 | * Returns: | |
3798 | * A pointer to the newly created property on success, NULL on failure. | |
3799 | */ | |
3800 | struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags, | |
3801 | const char *name) | |
3802 | { | |
3803 | return drm_property_create_range(dev, flags, name, 0, 1); | |
3804 | } | |
3805 | EXPORT_SYMBOL(drm_property_create_bool); | |
3806 | ||
c8e32cc1 DV |
3807 | /** |
3808 | * drm_property_add_enum - add a possible value to an enumeration property | |
3809 | * @property: enumeration property to change | |
3810 | * @index: index of the new enumeration | |
3811 | * @value: value of the new enumeration | |
3812 | * @name: symbolic name of the new enumeration | |
3813 | * | |
3814 | * This functions adds enumerations to a property. | |
3815 | * | |
3816 | * It's use is deprecated, drivers should use one of the more specific helpers | |
3817 | * to directly create the property with all enumerations already attached. | |
3818 | * | |
3819 | * Returns: | |
3820 | * Zero on success, error code on failure. | |
3821 | */ | |
f453ba04 DA |
3822 | int drm_property_add_enum(struct drm_property *property, int index, |
3823 | uint64_t value, const char *name) | |
3824 | { | |
3825 | struct drm_property_enum *prop_enum; | |
3826 | ||
5ea22f24 RC |
3827 | if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3828 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) | |
49e27545 RC |
3829 | return -EINVAL; |
3830 | ||
3831 | /* | |
3832 | * Bitmask enum properties have the additional constraint of values | |
3833 | * from 0 to 63 | |
3834 | */ | |
5ea22f24 RC |
3835 | if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && |
3836 | (value > 63)) | |
f453ba04 DA |
3837 | return -EINVAL; |
3838 | ||
3758b341 DV |
3839 | if (!list_empty(&property->enum_list)) { |
3840 | list_for_each_entry(prop_enum, &property->enum_list, head) { | |
f453ba04 DA |
3841 | if (prop_enum->value == value) { |
3842 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3843 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3844 | return 0; | |
3845 | } | |
3846 | } | |
3847 | } | |
3848 | ||
3849 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); | |
3850 | if (!prop_enum) | |
3851 | return -ENOMEM; | |
3852 | ||
3853 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3854 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3855 | prop_enum->value = value; | |
3856 | ||
3857 | property->values[index] = value; | |
3758b341 | 3858 | list_add_tail(&prop_enum->head, &property->enum_list); |
f453ba04 DA |
3859 | return 0; |
3860 | } | |
3861 | EXPORT_SYMBOL(drm_property_add_enum); | |
3862 | ||
c8e32cc1 DV |
3863 | /** |
3864 | * drm_property_destroy - destroy a drm property | |
3865 | * @dev: drm device | |
3866 | * @property: property to destry | |
3867 | * | |
3868 | * This function frees a property including any attached resources like | |
3869 | * enumeration values. | |
3870 | */ | |
f453ba04 DA |
3871 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) |
3872 | { | |
3873 | struct drm_property_enum *prop_enum, *pt; | |
3874 | ||
3758b341 | 3875 | list_for_each_entry_safe(prop_enum, pt, &property->enum_list, head) { |
f453ba04 DA |
3876 | list_del(&prop_enum->head); |
3877 | kfree(prop_enum); | |
3878 | } | |
3879 | ||
3880 | if (property->num_values) | |
3881 | kfree(property->values); | |
3882 | drm_mode_object_put(dev, &property->base); | |
3883 | list_del(&property->head); | |
3884 | kfree(property); | |
3885 | } | |
3886 | EXPORT_SYMBOL(drm_property_destroy); | |
3887 | ||
c8e32cc1 DV |
3888 | /** |
3889 | * drm_object_attach_property - attach a property to a modeset object | |
3890 | * @obj: drm modeset object | |
3891 | * @property: property to attach | |
3892 | * @init_val: initial value of the property | |
3893 | * | |
3894 | * This attaches the given property to the modeset object with the given initial | |
3895 | * value. Currently this function cannot fail since the properties are stored in | |
3896 | * a statically sized array. | |
3897 | */ | |
c543188a PZ |
3898 | void drm_object_attach_property(struct drm_mode_object *obj, |
3899 | struct drm_property *property, | |
3900 | uint64_t init_val) | |
3901 | { | |
7f88a9be | 3902 | int count = obj->properties->count; |
c543188a | 3903 | |
7f88a9be PZ |
3904 | if (count == DRM_OBJECT_MAX_PROPERTY) { |
3905 | WARN(1, "Failed to attach object property (type: 0x%x). Please " | |
3906 | "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " | |
3907 | "you see this message on the same object type.\n", | |
3908 | obj->type); | |
3909 | return; | |
c543188a PZ |
3910 | } |
3911 | ||
b17cd757 | 3912 | obj->properties->properties[count] = property; |
7f88a9be PZ |
3913 | obj->properties->values[count] = init_val; |
3914 | obj->properties->count++; | |
88a48e29 RC |
3915 | if (property->flags & DRM_MODE_PROP_ATOMIC) |
3916 | obj->properties->atomic_count++; | |
c543188a PZ |
3917 | } |
3918 | EXPORT_SYMBOL(drm_object_attach_property); | |
3919 | ||
c8e32cc1 DV |
3920 | /** |
3921 | * drm_object_property_set_value - set the value of a property | |
3922 | * @obj: drm mode object to set property value for | |
3923 | * @property: property to set | |
3924 | * @val: value the property should be set to | |
3925 | * | |
3926 | * This functions sets a given property on a given object. This function only | |
3927 | * changes the software state of the property, it does not call into the | |
3928 | * driver's ->set_property callback. | |
3929 | * | |
3930 | * Returns: | |
3931 | * Zero on success, error code on failure. | |
3932 | */ | |
c543188a PZ |
3933 | int drm_object_property_set_value(struct drm_mode_object *obj, |
3934 | struct drm_property *property, uint64_t val) | |
3935 | { | |
3936 | int i; | |
3937 | ||
7f88a9be | 3938 | for (i = 0; i < obj->properties->count; i++) { |
b17cd757 | 3939 | if (obj->properties->properties[i] == property) { |
c543188a PZ |
3940 | obj->properties->values[i] = val; |
3941 | return 0; | |
3942 | } | |
3943 | } | |
3944 | ||
3945 | return -EINVAL; | |
3946 | } | |
3947 | EXPORT_SYMBOL(drm_object_property_set_value); | |
3948 | ||
c8e32cc1 DV |
3949 | /** |
3950 | * drm_object_property_get_value - retrieve the value of a property | |
3951 | * @obj: drm mode object to get property value from | |
3952 | * @property: property to retrieve | |
3953 | * @val: storage for the property value | |
3954 | * | |
3955 | * This function retrieves the softare state of the given property for the given | |
3956 | * property. Since there is no driver callback to retrieve the current property | |
3957 | * value this might be out of sync with the hardware, depending upon the driver | |
3958 | * and property. | |
3959 | * | |
3960 | * Returns: | |
3961 | * Zero on success, error code on failure. | |
3962 | */ | |
c543188a PZ |
3963 | int drm_object_property_get_value(struct drm_mode_object *obj, |
3964 | struct drm_property *property, uint64_t *val) | |
3965 | { | |
3966 | int i; | |
3967 | ||
88a48e29 RC |
3968 | /* read-only properties bypass atomic mechanism and still store |
3969 | * their value in obj->properties->values[].. mostly to avoid | |
3970 | * having to deal w/ EDID and similar props in atomic paths: | |
3971 | */ | |
3972 | if (drm_core_check_feature(property->dev, DRIVER_ATOMIC) && | |
3973 | !(property->flags & DRM_MODE_PROP_IMMUTABLE)) | |
3974 | return drm_atomic_get_property(obj, property, val); | |
3975 | ||
7f88a9be | 3976 | for (i = 0; i < obj->properties->count; i++) { |
b17cd757 | 3977 | if (obj->properties->properties[i] == property) { |
c543188a PZ |
3978 | *val = obj->properties->values[i]; |
3979 | return 0; | |
3980 | } | |
3981 | } | |
3982 | ||
3983 | return -EINVAL; | |
3984 | } | |
3985 | EXPORT_SYMBOL(drm_object_property_get_value); | |
3986 | ||
c8e32cc1 | 3987 | /** |
1a498633 | 3988 | * drm_mode_getproperty_ioctl - get the property metadata |
c8e32cc1 DV |
3989 | * @dev: DRM device |
3990 | * @data: ioctl data | |
3991 | * @file_priv: DRM file info | |
3992 | * | |
1a498633 DV |
3993 | * This function retrieves the metadata for a given property, like the different |
3994 | * possible values for an enum property or the limits for a range property. | |
3995 | * | |
3996 | * Blob properties are special | |
c8e32cc1 DV |
3997 | * |
3998 | * Called by the user via ioctl. | |
3999 | * | |
4000 | * Returns: | |
1a498633 | 4001 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4002 | */ |
f453ba04 DA |
4003 | int drm_mode_getproperty_ioctl(struct drm_device *dev, |
4004 | void *data, struct drm_file *file_priv) | |
4005 | { | |
f453ba04 DA |
4006 | struct drm_mode_get_property *out_resp = data; |
4007 | struct drm_property *property; | |
4008 | int enum_count = 0; | |
f453ba04 DA |
4009 | int value_count = 0; |
4010 | int ret = 0, i; | |
4011 | int copied; | |
4012 | struct drm_property_enum *prop_enum; | |
4013 | struct drm_mode_property_enum __user *enum_ptr; | |
f453ba04 | 4014 | uint64_t __user *values_ptr; |
f453ba04 | 4015 | |
fb3b06c8 DA |
4016 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4017 | return -EINVAL; | |
4018 | ||
84849903 | 4019 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4020 | property = drm_property_find(dev, out_resp->prop_id); |
4021 | if (!property) { | |
f27657f2 | 4022 | ret = -ENOENT; |
f453ba04 DA |
4023 | goto done; |
4024 | } | |
f453ba04 | 4025 | |
5ea22f24 RC |
4026 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
4027 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
3758b341 | 4028 | list_for_each_entry(prop_enum, &property->enum_list, head) |
f453ba04 | 4029 | enum_count++; |
f453ba04 DA |
4030 | } |
4031 | ||
4032 | value_count = property->num_values; | |
4033 | ||
4034 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); | |
4035 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; | |
4036 | out_resp->flags = property->flags; | |
4037 | ||
4038 | if ((out_resp->count_values >= value_count) && value_count) { | |
81f6c7f8 | 4039 | values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; |
f453ba04 DA |
4040 | for (i = 0; i < value_count; i++) { |
4041 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { | |
4042 | ret = -EFAULT; | |
4043 | goto done; | |
4044 | } | |
4045 | } | |
4046 | } | |
4047 | out_resp->count_values = value_count; | |
4048 | ||
5ea22f24 RC |
4049 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
4050 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
f453ba04 DA |
4051 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
4052 | copied = 0; | |
81f6c7f8 | 4053 | enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; |
3758b341 | 4054 | list_for_each_entry(prop_enum, &property->enum_list, head) { |
f453ba04 DA |
4055 | |
4056 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { | |
4057 | ret = -EFAULT; | |
4058 | goto done; | |
4059 | } | |
4060 | ||
4061 | if (copy_to_user(&enum_ptr[copied].name, | |
4062 | &prop_enum->name, DRM_PROP_NAME_LEN)) { | |
4063 | ret = -EFAULT; | |
4064 | goto done; | |
4065 | } | |
4066 | copied++; | |
4067 | } | |
4068 | } | |
4069 | out_resp->count_enum_blobs = enum_count; | |
4070 | } | |
4071 | ||
3758b341 DV |
4072 | /* |
4073 | * NOTE: The idea seems to have been to use this to read all the blob | |
4074 | * property values. But nothing ever added them to the corresponding | |
4075 | * list, userspace always used the special-purpose get_blob ioctl to | |
4076 | * read the value for a blob property. It also doesn't make a lot of | |
4077 | * sense to return values here when everything else is just metadata for | |
4078 | * the property itself. | |
4079 | */ | |
4080 | if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) | |
4081 | out_resp->count_enum_blobs = 0; | |
f453ba04 | 4082 | done: |
84849903 | 4083 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4084 | return ret; |
4085 | } | |
4086 | ||
99531d9b DS |
4087 | /** |
4088 | * drm_property_create_blob - Create new blob property | |
4089 | * | |
4090 | * Creates a new blob property for a specified DRM device, optionally | |
4091 | * copying data. | |
4092 | * | |
4093 | * @dev: DRM device to create property for | |
4094 | * @length: Length to allocate for blob data | |
4095 | * @data: If specified, copies data into blob | |
10e8cb7e DS |
4096 | * |
4097 | * Returns: | |
4098 | * New blob property with a single reference on success, or an ERR_PTR | |
4099 | * value on failure. | |
99531d9b | 4100 | */ |
6bcacf51 | 4101 | struct drm_property_blob * |
ecbbe59b | 4102 | drm_property_create_blob(struct drm_device *dev, size_t length, |
12e6cecd | 4103 | const void *data) |
f453ba04 DA |
4104 | { |
4105 | struct drm_property_blob *blob; | |
6bfc56aa | 4106 | int ret; |
f453ba04 | 4107 | |
99531d9b | 4108 | if (!length) |
10e8cb7e | 4109 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
4110 | |
4111 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); | |
4112 | if (!blob) | |
10e8cb7e | 4113 | return ERR_PTR(-ENOMEM); |
f453ba04 | 4114 | |
e2f5d2ea DS |
4115 | /* This must be explicitly initialised, so we can safely call list_del |
4116 | * on it in the removal handler, even if it isn't in a file list. */ | |
4117 | INIT_LIST_HEAD(&blob->head_file); | |
8fb6e7a5 | 4118 | blob->length = length; |
6bcacf51 | 4119 | blob->dev = dev; |
8fb6e7a5 | 4120 | |
99531d9b DS |
4121 | if (data) |
4122 | memcpy(blob->data, data, length); | |
8fb6e7a5 DS |
4123 | |
4124 | mutex_lock(&dev->mode_config.blob_lock); | |
4125 | ||
6bfc56aa VS |
4126 | ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); |
4127 | if (ret) { | |
4128 | kfree(blob); | |
8fb6e7a5 | 4129 | mutex_unlock(&dev->mode_config.blob_lock); |
10e8cb7e | 4130 | return ERR_PTR(-EINVAL); |
6bfc56aa VS |
4131 | } |
4132 | ||
6bcacf51 | 4133 | kref_init(&blob->refcount); |
f453ba04 | 4134 | |
e2f5d2ea DS |
4135 | list_add_tail(&blob->head_global, |
4136 | &dev->mode_config.property_blob_list); | |
f453ba04 | 4137 | |
8fb6e7a5 | 4138 | mutex_unlock(&dev->mode_config.blob_lock); |
f453ba04 | 4139 | |
f453ba04 DA |
4140 | return blob; |
4141 | } | |
6bcacf51 | 4142 | EXPORT_SYMBOL(drm_property_create_blob); |
f453ba04 | 4143 | |
6bcacf51 DS |
4144 | /** |
4145 | * drm_property_free_blob - Blob property destructor | |
4146 | * | |
4147 | * Internal free function for blob properties; must not be used directly. | |
4148 | * | |
f102c16e | 4149 | * @kref: Reference |
6bcacf51 DS |
4150 | */ |
4151 | static void drm_property_free_blob(struct kref *kref) | |
f453ba04 | 4152 | { |
6bcacf51 DS |
4153 | struct drm_property_blob *blob = |
4154 | container_of(kref, struct drm_property_blob, refcount); | |
4155 | ||
4156 | WARN_ON(!mutex_is_locked(&blob->dev->mode_config.blob_lock)); | |
4157 | ||
e2f5d2ea DS |
4158 | list_del(&blob->head_global); |
4159 | list_del(&blob->head_file); | |
6bcacf51 | 4160 | drm_mode_object_put(blob->dev, &blob->base); |
8fb6e7a5 | 4161 | |
f453ba04 DA |
4162 | kfree(blob); |
4163 | } | |
4164 | ||
6bcacf51 DS |
4165 | /** |
4166 | * drm_property_unreference_blob - Unreference a blob property | |
4167 | * | |
4168 | * Drop a reference on a blob property. May free the object. | |
4169 | * | |
f102c16e | 4170 | * @blob: Pointer to blob property |
6bcacf51 DS |
4171 | */ |
4172 | void drm_property_unreference_blob(struct drm_property_blob *blob) | |
4173 | { | |
4174 | struct drm_device *dev; | |
4175 | ||
4176 | if (!blob) | |
4177 | return; | |
4178 | ||
4179 | dev = blob->dev; | |
4180 | ||
4181 | DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); | |
4182 | ||
4183 | if (kref_put_mutex(&blob->refcount, drm_property_free_blob, | |
4184 | &dev->mode_config.blob_lock)) | |
4185 | mutex_unlock(&dev->mode_config.blob_lock); | |
4186 | else | |
4187 | might_lock(&dev->mode_config.blob_lock); | |
6bcacf51 DS |
4188 | } |
4189 | EXPORT_SYMBOL(drm_property_unreference_blob); | |
4190 | ||
4191 | /** | |
4192 | * drm_property_unreference_blob_locked - Unreference a blob property with blob_lock held | |
4193 | * | |
4194 | * Drop a reference on a blob property. May free the object. This must be | |
4195 | * called with blob_lock held. | |
4196 | * | |
f102c16e | 4197 | * @blob: Pointer to blob property |
6bcacf51 DS |
4198 | */ |
4199 | static void drm_property_unreference_blob_locked(struct drm_property_blob *blob) | |
4200 | { | |
4201 | if (!blob) | |
4202 | return; | |
4203 | ||
4204 | DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); | |
4205 | ||
4206 | kref_put(&blob->refcount, drm_property_free_blob); | |
4207 | } | |
4208 | ||
e2f5d2ea DS |
4209 | /** |
4210 | * drm_property_destroy_user_blobs - destroy all blobs created by this client | |
4211 | * @dev: DRM device | |
4212 | * @file_priv: destroy all blobs owned by this file handle | |
4213 | */ | |
4214 | void drm_property_destroy_user_blobs(struct drm_device *dev, | |
4215 | struct drm_file *file_priv) | |
4216 | { | |
4217 | struct drm_property_blob *blob, *bt; | |
4218 | ||
4219 | mutex_lock(&dev->mode_config.blob_lock); | |
4220 | ||
4221 | list_for_each_entry_safe(blob, bt, &file_priv->blobs, head_file) { | |
4222 | list_del_init(&blob->head_file); | |
4223 | drm_property_unreference_blob_locked(blob); | |
4224 | } | |
4225 | ||
4226 | mutex_unlock(&dev->mode_config.blob_lock); | |
4227 | } | |
4228 | ||
6bcacf51 DS |
4229 | /** |
4230 | * drm_property_reference_blob - Take a reference on an existing property | |
4231 | * | |
4232 | * Take a new reference on an existing blob property. | |
4233 | * | |
f102c16e | 4234 | * @blob: Pointer to blob property |
6bcacf51 DS |
4235 | */ |
4236 | struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob) | |
4237 | { | |
4238 | DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); | |
4239 | kref_get(&blob->refcount); | |
4240 | return blob; | |
4241 | } | |
4242 | EXPORT_SYMBOL(drm_property_reference_blob); | |
4243 | ||
4244 | /* | |
4245 | * Like drm_property_lookup_blob, but does not return an additional reference. | |
4246 | * Must be called with blob_lock held. | |
4247 | */ | |
4248 | static struct drm_property_blob *__drm_property_lookup_blob(struct drm_device *dev, | |
4249 | uint32_t id) | |
4250 | { | |
4251 | struct drm_mode_object *obj = NULL; | |
4252 | struct drm_property_blob *blob; | |
4253 | ||
4254 | WARN_ON(!mutex_is_locked(&dev->mode_config.blob_lock)); | |
4255 | ||
4256 | mutex_lock(&dev->mode_config.idr_mutex); | |
4257 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
4258 | if (!obj || (obj->type != DRM_MODE_OBJECT_BLOB) || (obj->id != id)) | |
4259 | blob = NULL; | |
4260 | else | |
4261 | blob = obj_to_blob(obj); | |
4262 | mutex_unlock(&dev->mode_config.idr_mutex); | |
4263 | ||
4264 | return blob; | |
4265 | } | |
4266 | ||
4267 | /** | |
4268 | * drm_property_lookup_blob - look up a blob property and take a reference | |
4269 | * @dev: drm device | |
4270 | * @id: id of the blob property | |
4271 | * | |
4272 | * If successful, this takes an additional reference to the blob property. | |
4273 | * callers need to make sure to eventually unreference the returned property | |
4274 | * again, using @drm_property_unreference_blob. | |
4275 | */ | |
4276 | struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev, | |
4277 | uint32_t id) | |
4278 | { | |
4279 | struct drm_property_blob *blob; | |
4280 | ||
4281 | mutex_lock(&dev->mode_config.blob_lock); | |
4282 | blob = __drm_property_lookup_blob(dev, id); | |
4283 | if (blob) { | |
4284 | if (!kref_get_unless_zero(&blob->refcount)) | |
4285 | blob = NULL; | |
4286 | } | |
4287 | mutex_unlock(&dev->mode_config.blob_lock); | |
4288 | ||
4289 | return blob; | |
4290 | } | |
4291 | EXPORT_SYMBOL(drm_property_lookup_blob); | |
4292 | ||
d2ed3436 DS |
4293 | /** |
4294 | * drm_property_replace_global_blob - atomically replace existing blob property | |
4295 | * @dev: drm device | |
4296 | * @replace: location of blob property pointer to be replaced | |
4297 | * @length: length of data for new blob, or 0 for no data | |
4298 | * @data: content for new blob, or NULL for no data | |
4299 | * @obj_holds_id: optional object for property holding blob ID | |
4300 | * @prop_holds_id: optional property holding blob ID | |
4301 | * @return 0 on success or error on failure | |
4302 | * | |
4303 | * This function will atomically replace a global property in the blob list, | |
4304 | * optionally updating a property which holds the ID of that property. It is | |
4305 | * guaranteed to be atomic: no caller will be allowed to see intermediate | |
4306 | * results, and either the entire operation will succeed and clean up the | |
4307 | * previous property, or it will fail and the state will be unchanged. | |
4308 | * | |
4309 | * If length is 0 or data is NULL, no new blob will be created, and the holding | |
4310 | * property, if specified, will be set to 0. | |
4311 | * | |
4312 | * Access to the replace pointer is assumed to be protected by the caller, e.g. | |
4313 | * by holding the relevant modesetting object lock for its parent. | |
4314 | * | |
4315 | * For example, a drm_connector has a 'PATH' property, which contains the ID | |
4316 | * of a blob property with the value of the MST path information. Calling this | |
4317 | * function with replace pointing to the connector's path_blob_ptr, length and | |
4318 | * data set for the new path information, obj_holds_id set to the connector's | |
4319 | * base object, and prop_holds_id set to the path property name, will perform | |
4320 | * a completely atomic update. The access to path_blob_ptr is protected by the | |
4321 | * caller holding a lock on the connector. | |
4322 | */ | |
4323 | static int drm_property_replace_global_blob(struct drm_device *dev, | |
4324 | struct drm_property_blob **replace, | |
4325 | size_t length, | |
4326 | const void *data, | |
4327 | struct drm_mode_object *obj_holds_id, | |
4328 | struct drm_property *prop_holds_id) | |
4329 | { | |
4330 | struct drm_property_blob *new_blob = NULL; | |
4331 | struct drm_property_blob *old_blob = NULL; | |
4332 | int ret; | |
4333 | ||
4334 | WARN_ON(replace == NULL); | |
4335 | ||
4336 | old_blob = *replace; | |
4337 | ||
4338 | if (length && data) { | |
4339 | new_blob = drm_property_create_blob(dev, length, data); | |
10e8cb7e DS |
4340 | if (IS_ERR(new_blob)) |
4341 | return PTR_ERR(new_blob); | |
d2ed3436 DS |
4342 | } |
4343 | ||
4344 | /* This does not need to be synchronised with blob_lock, as the | |
4345 | * get_properties ioctl locks all modesetting objects, and | |
4346 | * obj_holds_id must be locked before calling here, so we cannot | |
4347 | * have its value out of sync with the list membership modified | |
4348 | * below under blob_lock. */ | |
4349 | if (obj_holds_id) { | |
4350 | ret = drm_object_property_set_value(obj_holds_id, | |
4351 | prop_holds_id, | |
4352 | new_blob ? | |
4353 | new_blob->base.id : 0); | |
4354 | if (ret != 0) | |
4355 | goto err_created; | |
4356 | } | |
4357 | ||
ec530829 | 4358 | drm_property_unreference_blob(old_blob); |
d2ed3436 DS |
4359 | *replace = new_blob; |
4360 | ||
4361 | return 0; | |
4362 | ||
4363 | err_created: | |
6bcacf51 | 4364 | drm_property_unreference_blob(new_blob); |
d2ed3436 DS |
4365 | return ret; |
4366 | } | |
4367 | ||
c8e32cc1 DV |
4368 | /** |
4369 | * drm_mode_getblob_ioctl - get the contents of a blob property value | |
4370 | * @dev: DRM device | |
4371 | * @data: ioctl data | |
4372 | * @file_priv: DRM file info | |
4373 | * | |
4374 | * This function retrieves the contents of a blob property. The value stored in | |
4375 | * an object's blob property is just a normal modeset object id. | |
4376 | * | |
4377 | * Called by the user via ioctl. | |
4378 | * | |
4379 | * Returns: | |
1a498633 | 4380 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4381 | */ |
f453ba04 DA |
4382 | int drm_mode_getblob_ioctl(struct drm_device *dev, |
4383 | void *data, struct drm_file *file_priv) | |
4384 | { | |
f453ba04 DA |
4385 | struct drm_mode_get_blob *out_resp = data; |
4386 | struct drm_property_blob *blob; | |
4387 | int ret = 0; | |
81f6c7f8 | 4388 | void __user *blob_ptr; |
f453ba04 | 4389 | |
fb3b06c8 DA |
4390 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4391 | return -EINVAL; | |
4392 | ||
84849903 | 4393 | drm_modeset_lock_all(dev); |
8fb6e7a5 | 4394 | mutex_lock(&dev->mode_config.blob_lock); |
6bcacf51 | 4395 | blob = __drm_property_lookup_blob(dev, out_resp->blob_id); |
a2b34e22 | 4396 | if (!blob) { |
f27657f2 | 4397 | ret = -ENOENT; |
f453ba04 DA |
4398 | goto done; |
4399 | } | |
f453ba04 DA |
4400 | |
4401 | if (out_resp->length == blob->length) { | |
81f6c7f8 | 4402 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
4dfd909f | 4403 | if (copy_to_user(blob_ptr, blob->data, blob->length)) { |
f453ba04 DA |
4404 | ret = -EFAULT; |
4405 | goto done; | |
4406 | } | |
4407 | } | |
4408 | out_resp->length = blob->length; | |
4409 | ||
4410 | done: | |
8fb6e7a5 | 4411 | mutex_unlock(&dev->mode_config.blob_lock); |
84849903 | 4412 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4413 | return ret; |
4414 | } | |
4415 | ||
e2f5d2ea DS |
4416 | /** |
4417 | * drm_mode_createblob_ioctl - create a new blob property | |
4418 | * @dev: DRM device | |
4419 | * @data: ioctl data | |
4420 | * @file_priv: DRM file info | |
4421 | * | |
4422 | * This function creates a new blob property with user-defined values. In order | |
4423 | * to give us sensible validation and checking when creating, rather than at | |
4424 | * every potential use, we also require a type to be provided upfront. | |
4425 | * | |
4426 | * Called by the user via ioctl. | |
4427 | * | |
4428 | * Returns: | |
4429 | * Zero on success, negative errno on failure. | |
4430 | */ | |
4431 | int drm_mode_createblob_ioctl(struct drm_device *dev, | |
4432 | void *data, struct drm_file *file_priv) | |
4433 | { | |
4434 | struct drm_mode_create_blob *out_resp = data; | |
4435 | struct drm_property_blob *blob; | |
4436 | void __user *blob_ptr; | |
4437 | int ret = 0; | |
4438 | ||
4439 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4440 | return -EINVAL; | |
4441 | ||
4442 | blob = drm_property_create_blob(dev, out_resp->length, NULL); | |
4443 | if (IS_ERR(blob)) | |
4444 | return PTR_ERR(blob); | |
4445 | ||
4446 | blob_ptr = (void __user *)(unsigned long)out_resp->data; | |
4447 | if (copy_from_user(blob->data, blob_ptr, out_resp->length)) { | |
4448 | ret = -EFAULT; | |
4449 | goto out_blob; | |
4450 | } | |
4451 | ||
4452 | /* Dropping the lock between create_blob and our access here is safe | |
4453 | * as only the same file_priv can remove the blob; at this point, it is | |
4454 | * not associated with any file_priv. */ | |
4455 | mutex_lock(&dev->mode_config.blob_lock); | |
4456 | out_resp->blob_id = blob->base.id; | |
4457 | list_add_tail(&file_priv->blobs, &blob->head_file); | |
4458 | mutex_unlock(&dev->mode_config.blob_lock); | |
4459 | ||
4460 | return 0; | |
4461 | ||
4462 | out_blob: | |
4463 | drm_property_unreference_blob(blob); | |
4464 | return ret; | |
4465 | } | |
4466 | ||
4467 | /** | |
4468 | * drm_mode_destroyblob_ioctl - destroy a user blob property | |
4469 | * @dev: DRM device | |
4470 | * @data: ioctl data | |
4471 | * @file_priv: DRM file info | |
4472 | * | |
4473 | * Destroy an existing user-defined blob property. | |
4474 | * | |
4475 | * Called by the user via ioctl. | |
4476 | * | |
4477 | * Returns: | |
4478 | * Zero on success, negative errno on failure. | |
4479 | */ | |
4480 | int drm_mode_destroyblob_ioctl(struct drm_device *dev, | |
4481 | void *data, struct drm_file *file_priv) | |
4482 | { | |
4483 | struct drm_mode_destroy_blob *out_resp = data; | |
4484 | struct drm_property_blob *blob = NULL, *bt; | |
4485 | bool found = false; | |
4486 | int ret = 0; | |
4487 | ||
4488 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4489 | return -EINVAL; | |
4490 | ||
4491 | mutex_lock(&dev->mode_config.blob_lock); | |
4492 | blob = __drm_property_lookup_blob(dev, out_resp->blob_id); | |
4493 | if (!blob) { | |
4494 | ret = -ENOENT; | |
4495 | goto err; | |
4496 | } | |
4497 | ||
4498 | /* Ensure the property was actually created by this user. */ | |
4499 | list_for_each_entry(bt, &file_priv->blobs, head_file) { | |
4500 | if (bt == blob) { | |
4501 | found = true; | |
4502 | break; | |
4503 | } | |
4504 | } | |
4505 | ||
4506 | if (!found) { | |
4507 | ret = -EPERM; | |
4508 | goto err; | |
4509 | } | |
4510 | ||
4511 | /* We must drop head_file here, because we may not be the last | |
4512 | * reference on the blob. */ | |
4513 | list_del_init(&blob->head_file); | |
4514 | drm_property_unreference_blob_locked(blob); | |
4515 | mutex_unlock(&dev->mode_config.blob_lock); | |
4516 | ||
4517 | return 0; | |
4518 | ||
4519 | err: | |
4520 | mutex_unlock(&dev->mode_config.blob_lock); | |
4521 | return ret; | |
4522 | } | |
4523 | ||
cc7096fb DA |
4524 | /** |
4525 | * drm_mode_connector_set_path_property - set tile property on connector | |
4526 | * @connector: connector to set property on. | |
d2ed3436 | 4527 | * @path: path to use for property; must not be NULL. |
cc7096fb DA |
4528 | * |
4529 | * This creates a property to expose to userspace to specify a | |
4530 | * connector path. This is mainly used for DisplayPort MST where | |
4531 | * connectors have a topology and we want to allow userspace to give | |
4532 | * them more meaningful names. | |
4533 | * | |
4534 | * Returns: | |
1a498633 | 4535 | * Zero on success, negative errno on failure. |
cc7096fb | 4536 | */ |
43aba7eb | 4537 | int drm_mode_connector_set_path_property(struct drm_connector *connector, |
12e6cecd | 4538 | const char *path) |
43aba7eb DA |
4539 | { |
4540 | struct drm_device *dev = connector->dev; | |
ecbbe59b | 4541 | int ret; |
43aba7eb | 4542 | |
d2ed3436 DS |
4543 | ret = drm_property_replace_global_blob(dev, |
4544 | &connector->path_blob_ptr, | |
4545 | strlen(path) + 1, | |
4546 | path, | |
4547 | &connector->base, | |
4548 | dev->mode_config.path_property); | |
43aba7eb DA |
4549 | return ret; |
4550 | } | |
4551 | EXPORT_SYMBOL(drm_mode_connector_set_path_property); | |
4552 | ||
6f134d7b DA |
4553 | /** |
4554 | * drm_mode_connector_set_tile_property - set tile property on connector | |
4555 | * @connector: connector to set property on. | |
4556 | * | |
4557 | * This looks up the tile information for a connector, and creates a | |
4558 | * property for userspace to parse if it exists. The property is of | |
4559 | * the form of 8 integers using ':' as a separator. | |
4560 | * | |
4561 | * Returns: | |
4562 | * Zero on success, errno on failure. | |
4563 | */ | |
4564 | int drm_mode_connector_set_tile_property(struct drm_connector *connector) | |
4565 | { | |
4566 | struct drm_device *dev = connector->dev; | |
6f134d7b | 4567 | char tile[256]; |
d2ed3436 | 4568 | int ret; |
6f134d7b DA |
4569 | |
4570 | if (!connector->has_tile) { | |
d2ed3436 DS |
4571 | ret = drm_property_replace_global_blob(dev, |
4572 | &connector->tile_blob_ptr, | |
4573 | 0, | |
4574 | NULL, | |
4575 | &connector->base, | |
4576 | dev->mode_config.tile_property); | |
6f134d7b DA |
4577 | return ret; |
4578 | } | |
4579 | ||
4580 | snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d", | |
4581 | connector->tile_group->id, connector->tile_is_single_monitor, | |
4582 | connector->num_h_tile, connector->num_v_tile, | |
4583 | connector->tile_h_loc, connector->tile_v_loc, | |
4584 | connector->tile_h_size, connector->tile_v_size); | |
6f134d7b | 4585 | |
d2ed3436 DS |
4586 | ret = drm_property_replace_global_blob(dev, |
4587 | &connector->tile_blob_ptr, | |
4588 | strlen(tile) + 1, | |
4589 | tile, | |
4590 | &connector->base, | |
4591 | dev->mode_config.tile_property); | |
6f134d7b DA |
4592 | return ret; |
4593 | } | |
4594 | EXPORT_SYMBOL(drm_mode_connector_set_tile_property); | |
4595 | ||
c8e32cc1 DV |
4596 | /** |
4597 | * drm_mode_connector_update_edid_property - update the edid property of a connector | |
4598 | * @connector: drm connector | |
4599 | * @edid: new value of the edid property | |
4600 | * | |
4601 | * This function creates a new blob modeset object and assigns its id to the | |
4602 | * connector's edid property. | |
4603 | * | |
4604 | * Returns: | |
1a498633 | 4605 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4606 | */ |
f453ba04 | 4607 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
12e6cecd | 4608 | const struct edid *edid) |
f453ba04 DA |
4609 | { |
4610 | struct drm_device *dev = connector->dev; | |
d2ed3436 | 4611 | size_t size = 0; |
ecbbe59b | 4612 | int ret; |
f453ba04 | 4613 | |
4cf2b281 TW |
4614 | /* ignore requests to set edid when overridden */ |
4615 | if (connector->override_edid) | |
4616 | return 0; | |
4617 | ||
d2ed3436 | 4618 | if (edid) |
e24ff467 | 4619 | size = EDID_LENGTH * (1 + edid->extensions); |
f453ba04 | 4620 | |
d2ed3436 DS |
4621 | ret = drm_property_replace_global_blob(dev, |
4622 | &connector->edid_blob_ptr, | |
4623 | size, | |
4624 | edid, | |
4625 | &connector->base, | |
4626 | dev->mode_config.edid_property); | |
f453ba04 DA |
4627 | return ret; |
4628 | } | |
4629 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); | |
4630 | ||
3843e71f RC |
4631 | /* Some properties could refer to dynamic refcnt'd objects, or things that |
4632 | * need special locking to handle lifetime issues (ie. to ensure the prop | |
4633 | * value doesn't become invalid part way through the property update due to | |
4634 | * race). The value returned by reference via 'obj' should be passed back | |
4635 | * to drm_property_change_valid_put() after the property is set (and the | |
4636 | * object to which the property is attached has a chance to take it's own | |
4637 | * reference). | |
4638 | */ | |
d34f20d6 | 4639 | bool drm_property_change_valid_get(struct drm_property *property, |
3843e71f | 4640 | uint64_t value, struct drm_mode_object **ref) |
26a34815 | 4641 | { |
2ca651d1 TR |
4642 | int i; |
4643 | ||
26a34815 PZ |
4644 | if (property->flags & DRM_MODE_PROP_IMMUTABLE) |
4645 | return false; | |
5ea22f24 | 4646 | |
3843e71f RC |
4647 | *ref = NULL; |
4648 | ||
5ea22f24 | 4649 | if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) { |
26a34815 PZ |
4650 | if (value < property->values[0] || value > property->values[1]) |
4651 | return false; | |
4652 | return true; | |
ebc44cf3 RC |
4653 | } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) { |
4654 | int64_t svalue = U642I64(value); | |
4dfd909f | 4655 | |
ebc44cf3 RC |
4656 | if (svalue < U642I64(property->values[0]) || |
4657 | svalue > U642I64(property->values[1])) | |
4658 | return false; | |
4659 | return true; | |
5ea22f24 | 4660 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
592c20ee | 4661 | uint64_t valid_mask = 0; |
4dfd909f | 4662 | |
49e27545 RC |
4663 | for (i = 0; i < property->num_values; i++) |
4664 | valid_mask |= (1ULL << property->values[i]); | |
4665 | return !(value & ~valid_mask); | |
5ea22f24 | 4666 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
6bcacf51 DS |
4667 | struct drm_property_blob *blob; |
4668 | ||
4669 | if (value == 0) | |
4670 | return true; | |
4671 | ||
4672 | blob = drm_property_lookup_blob(property->dev, value); | |
4673 | if (blob) { | |
4674 | *ref = &blob->base; | |
4675 | return true; | |
4676 | } else { | |
4677 | return false; | |
4678 | } | |
98f75de4 | 4679 | } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { |
98f75de4 RC |
4680 | /* a zero value for an object property translates to null: */ |
4681 | if (value == 0) | |
4682 | return true; | |
3843e71f RC |
4683 | |
4684 | /* handle refcnt'd objects specially: */ | |
4685 | if (property->values[0] == DRM_MODE_OBJECT_FB) { | |
4686 | struct drm_framebuffer *fb; | |
4687 | fb = drm_framebuffer_lookup(property->dev, value); | |
4688 | if (fb) { | |
4689 | *ref = &fb->base; | |
4690 | return true; | |
4691 | } else { | |
4692 | return false; | |
4693 | } | |
4694 | } else { | |
4695 | return _object_find(property->dev, value, property->values[0]) != NULL; | |
4696 | } | |
26a34815 | 4697 | } |
2ca651d1 TR |
4698 | |
4699 | for (i = 0; i < property->num_values; i++) | |
4700 | if (property->values[i] == value) | |
4701 | return true; | |
4702 | return false; | |
26a34815 PZ |
4703 | } |
4704 | ||
d34f20d6 | 4705 | void drm_property_change_valid_put(struct drm_property *property, |
3843e71f RC |
4706 | struct drm_mode_object *ref) |
4707 | { | |
4708 | if (!ref) | |
4709 | return; | |
4710 | ||
4711 | if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { | |
4712 | if (property->values[0] == DRM_MODE_OBJECT_FB) | |
4713 | drm_framebuffer_unreference(obj_to_fb(ref)); | |
da9b2a38 DS |
4714 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) |
4715 | drm_property_unreference_blob(obj_to_blob(ref)); | |
3843e71f RC |
4716 | } |
4717 | ||
c8e32cc1 DV |
4718 | /** |
4719 | * drm_mode_connector_property_set_ioctl - set the current value of a connector property | |
4720 | * @dev: DRM device | |
4721 | * @data: ioctl data | |
4722 | * @file_priv: DRM file info | |
4723 | * | |
4724 | * This function sets the current value for a connectors's property. It also | |
4725 | * calls into a driver's ->set_property callback to update the hardware state | |
4726 | * | |
4727 | * Called by the user via ioctl. | |
4728 | * | |
4729 | * Returns: | |
1a498633 | 4730 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4731 | */ |
f453ba04 DA |
4732 | int drm_mode_connector_property_set_ioctl(struct drm_device *dev, |
4733 | void *data, struct drm_file *file_priv) | |
4734 | { | |
0057d8dd PZ |
4735 | struct drm_mode_connector_set_property *conn_set_prop = data; |
4736 | struct drm_mode_obj_set_property obj_set_prop = { | |
4737 | .value = conn_set_prop->value, | |
4738 | .prop_id = conn_set_prop->prop_id, | |
4739 | .obj_id = conn_set_prop->connector_id, | |
4740 | .obj_type = DRM_MODE_OBJECT_CONNECTOR | |
4741 | }; | |
fb3b06c8 | 4742 | |
0057d8dd PZ |
4743 | /* It does all the locking and checking we need */ |
4744 | return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); | |
f453ba04 DA |
4745 | } |
4746 | ||
c543188a PZ |
4747 | static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, |
4748 | struct drm_property *property, | |
4749 | uint64_t value) | |
4750 | { | |
4751 | int ret = -EINVAL; | |
4752 | struct drm_connector *connector = obj_to_connector(obj); | |
4753 | ||
4754 | /* Do DPMS ourselves */ | |
4755 | if (property == connector->dev->mode_config.dpms_property) { | |
c543188a | 4756 | ret = 0; |
9a69a9ac ML |
4757 | if (connector->funcs->dpms) |
4758 | ret = (*connector->funcs->dpms)(connector, (int)value); | |
c543188a PZ |
4759 | } else if (connector->funcs->set_property) |
4760 | ret = connector->funcs->set_property(connector, property, value); | |
4761 | ||
4762 | /* store the property value if successful */ | |
4763 | if (!ret) | |
58495563 | 4764 | drm_object_property_set_value(&connector->base, property, value); |
c543188a PZ |
4765 | return ret; |
4766 | } | |
4767 | ||
bffd9de0 PZ |
4768 | static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
4769 | struct drm_property *property, | |
4770 | uint64_t value) | |
4771 | { | |
4772 | int ret = -EINVAL; | |
4773 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
4774 | ||
4775 | if (crtc->funcs->set_property) | |
4776 | ret = crtc->funcs->set_property(crtc, property, value); | |
4777 | if (!ret) | |
4778 | drm_object_property_set_value(obj, property, value); | |
4779 | ||
4780 | return ret; | |
4781 | } | |
4782 | ||
3a5f87c2 TW |
4783 | /** |
4784 | * drm_mode_plane_set_obj_prop - set the value of a property | |
4785 | * @plane: drm plane object to set property value for | |
4786 | * @property: property to set | |
4787 | * @value: value the property should be set to | |
4788 | * | |
4789 | * This functions sets a given property on a given plane object. This function | |
4790 | * calls the driver's ->set_property callback and changes the software state of | |
4791 | * the property if the callback succeeds. | |
4792 | * | |
4793 | * Returns: | |
4794 | * Zero on success, error code on failure. | |
4795 | */ | |
4796 | int drm_mode_plane_set_obj_prop(struct drm_plane *plane, | |
4797 | struct drm_property *property, | |
4798 | uint64_t value) | |
4d93914a RC |
4799 | { |
4800 | int ret = -EINVAL; | |
3a5f87c2 | 4801 | struct drm_mode_object *obj = &plane->base; |
4d93914a RC |
4802 | |
4803 | if (plane->funcs->set_property) | |
4804 | ret = plane->funcs->set_property(plane, property, value); | |
4805 | if (!ret) | |
4806 | drm_object_property_set_value(obj, property, value); | |
4807 | ||
4808 | return ret; | |
4809 | } | |
3a5f87c2 | 4810 | EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); |
4d93914a | 4811 | |
c8e32cc1 | 4812 | /** |
1a498633 | 4813 | * drm_mode_obj_get_properties_ioctl - get the current value of a object's property |
c8e32cc1 DV |
4814 | * @dev: DRM device |
4815 | * @data: ioctl data | |
4816 | * @file_priv: DRM file info | |
4817 | * | |
4818 | * This function retrieves the current value for an object's property. Compared | |
4819 | * to the connector specific ioctl this one is extended to also work on crtc and | |
4820 | * plane objects. | |
4821 | * | |
4822 | * Called by the user via ioctl. | |
4823 | * | |
4824 | * Returns: | |
1a498633 | 4825 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4826 | */ |
c543188a PZ |
4827 | int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
4828 | struct drm_file *file_priv) | |
4829 | { | |
4830 | struct drm_mode_obj_get_properties *arg = data; | |
4831 | struct drm_mode_object *obj; | |
4832 | int ret = 0; | |
c543188a PZ |
4833 | |
4834 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4835 | return -EINVAL; | |
4836 | ||
84849903 | 4837 | drm_modeset_lock_all(dev); |
c543188a PZ |
4838 | |
4839 | obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
4840 | if (!obj) { | |
f27657f2 | 4841 | ret = -ENOENT; |
c543188a PZ |
4842 | goto out; |
4843 | } | |
4844 | if (!obj->properties) { | |
4845 | ret = -EINVAL; | |
4846 | goto out; | |
4847 | } | |
4848 | ||
88a48e29 | 4849 | ret = get_properties(obj, file_priv->atomic, |
95cbf110 RC |
4850 | (uint32_t __user *)(unsigned long)(arg->props_ptr), |
4851 | (uint64_t __user *)(unsigned long)(arg->prop_values_ptr), | |
4852 | &arg->count_props); | |
c543188a | 4853 | |
c543188a | 4854 | out: |
84849903 | 4855 | drm_modeset_unlock_all(dev); |
c543188a PZ |
4856 | return ret; |
4857 | } | |
4858 | ||
c8e32cc1 DV |
4859 | /** |
4860 | * drm_mode_obj_set_property_ioctl - set the current value of an object's property | |
4861 | * @dev: DRM device | |
4862 | * @data: ioctl data | |
4863 | * @file_priv: DRM file info | |
4864 | * | |
4865 | * This function sets the current value for an object's property. It also calls | |
4866 | * into a driver's ->set_property callback to update the hardware state. | |
4867 | * Compared to the connector specific ioctl this one is extended to also work on | |
4868 | * crtc and plane objects. | |
4869 | * | |
4870 | * Called by the user via ioctl. | |
4871 | * | |
4872 | * Returns: | |
1a498633 | 4873 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4874 | */ |
c543188a PZ |
4875 | int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, |
4876 | struct drm_file *file_priv) | |
4877 | { | |
4878 | struct drm_mode_obj_set_property *arg = data; | |
4879 | struct drm_mode_object *arg_obj; | |
4880 | struct drm_mode_object *prop_obj; | |
4881 | struct drm_property *property; | |
3843e71f RC |
4882 | int i, ret = -EINVAL; |
4883 | struct drm_mode_object *ref; | |
c543188a PZ |
4884 | |
4885 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4886 | return -EINVAL; | |
4887 | ||
84849903 | 4888 | drm_modeset_lock_all(dev); |
c543188a PZ |
4889 | |
4890 | arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
f27657f2 VS |
4891 | if (!arg_obj) { |
4892 | ret = -ENOENT; | |
c543188a | 4893 | goto out; |
f27657f2 | 4894 | } |
c543188a PZ |
4895 | if (!arg_obj->properties) |
4896 | goto out; | |
4897 | ||
7f88a9be | 4898 | for (i = 0; i < arg_obj->properties->count; i++) |
b17cd757 | 4899 | if (arg_obj->properties->properties[i]->base.id == arg->prop_id) |
c543188a PZ |
4900 | break; |
4901 | ||
7f88a9be | 4902 | if (i == arg_obj->properties->count) |
c543188a PZ |
4903 | goto out; |
4904 | ||
4905 | prop_obj = drm_mode_object_find(dev, arg->prop_id, | |
4906 | DRM_MODE_OBJECT_PROPERTY); | |
f27657f2 VS |
4907 | if (!prop_obj) { |
4908 | ret = -ENOENT; | |
c543188a | 4909 | goto out; |
f27657f2 | 4910 | } |
c543188a PZ |
4911 | property = obj_to_property(prop_obj); |
4912 | ||
3843e71f | 4913 | if (!drm_property_change_valid_get(property, arg->value, &ref)) |
c543188a PZ |
4914 | goto out; |
4915 | ||
4916 | switch (arg_obj->type) { | |
4917 | case DRM_MODE_OBJECT_CONNECTOR: | |
4918 | ret = drm_mode_connector_set_obj_prop(arg_obj, property, | |
4919 | arg->value); | |
4920 | break; | |
bffd9de0 PZ |
4921 | case DRM_MODE_OBJECT_CRTC: |
4922 | ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); | |
4923 | break; | |
4d93914a | 4924 | case DRM_MODE_OBJECT_PLANE: |
3a5f87c2 TW |
4925 | ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj), |
4926 | property, arg->value); | |
4d93914a | 4927 | break; |
c543188a PZ |
4928 | } |
4929 | ||
3843e71f RC |
4930 | drm_property_change_valid_put(property, ref); |
4931 | ||
c543188a | 4932 | out: |
84849903 | 4933 | drm_modeset_unlock_all(dev); |
c543188a PZ |
4934 | return ret; |
4935 | } | |
4936 | ||
c8e32cc1 DV |
4937 | /** |
4938 | * drm_mode_connector_attach_encoder - attach a connector to an encoder | |
4939 | * @connector: connector to attach | |
4940 | * @encoder: encoder to attach @connector to | |
4941 | * | |
4942 | * This function links up a connector to an encoder. Note that the routing | |
4943 | * restrictions between encoders and crtcs are exposed to userspace through the | |
4944 | * possible_clones and possible_crtcs bitmasks. | |
4945 | * | |
4946 | * Returns: | |
1a498633 | 4947 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4948 | */ |
f453ba04 DA |
4949 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
4950 | struct drm_encoder *encoder) | |
4951 | { | |
4952 | int i; | |
4953 | ||
4954 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
4955 | if (connector->encoder_ids[i] == 0) { | |
4956 | connector->encoder_ids[i] = encoder->base.id; | |
4957 | return 0; | |
4958 | } | |
4959 | } | |
4960 | return -ENOMEM; | |
4961 | } | |
4962 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); | |
4963 | ||
c8e32cc1 DV |
4964 | /** |
4965 | * drm_mode_crtc_set_gamma_size - set the gamma table size | |
4966 | * @crtc: CRTC to set the gamma table size for | |
4967 | * @gamma_size: size of the gamma table | |
4968 | * | |
4969 | * Drivers which support gamma tables should set this to the supported gamma | |
4970 | * table size when initializing the CRTC. Currently the drm core only supports a | |
4971 | * fixed gamma table size. | |
4972 | * | |
4973 | * Returns: | |
1a498633 | 4974 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4975 | */ |
4cae5b84 | 4976 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
c8e32cc1 | 4977 | int gamma_size) |
f453ba04 DA |
4978 | { |
4979 | crtc->gamma_size = gamma_size; | |
4980 | ||
bd3f0ff9 TR |
4981 | crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3, |
4982 | GFP_KERNEL); | |
f453ba04 DA |
4983 | if (!crtc->gamma_store) { |
4984 | crtc->gamma_size = 0; | |
4cae5b84 | 4985 | return -ENOMEM; |
f453ba04 DA |
4986 | } |
4987 | ||
4cae5b84 | 4988 | return 0; |
f453ba04 DA |
4989 | } |
4990 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); | |
4991 | ||
c8e32cc1 DV |
4992 | /** |
4993 | * drm_mode_gamma_set_ioctl - set the gamma table | |
4994 | * @dev: DRM device | |
4995 | * @data: ioctl data | |
4996 | * @file_priv: DRM file info | |
4997 | * | |
4998 | * Set the gamma table of a CRTC to the one passed in by the user. Userspace can | |
4999 | * inquire the required gamma table size through drm_mode_gamma_get_ioctl. | |
5000 | * | |
5001 | * Called by the user via ioctl. | |
5002 | * | |
5003 | * Returns: | |
1a498633 | 5004 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5005 | */ |
f453ba04 DA |
5006 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
5007 | void *data, struct drm_file *file_priv) | |
5008 | { | |
5009 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
5010 | struct drm_crtc *crtc; |
5011 | void *r_base, *g_base, *b_base; | |
5012 | int size; | |
5013 | int ret = 0; | |
5014 | ||
fb3b06c8 DA |
5015 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
5016 | return -EINVAL; | |
5017 | ||
84849903 | 5018 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
5019 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
5020 | if (!crtc) { | |
f27657f2 | 5021 | ret = -ENOENT; |
f453ba04 DA |
5022 | goto out; |
5023 | } | |
f453ba04 | 5024 | |
ebe0f244 LP |
5025 | if (crtc->funcs->gamma_set == NULL) { |
5026 | ret = -ENOSYS; | |
5027 | goto out; | |
5028 | } | |
5029 | ||
f453ba04 DA |
5030 | /* memcpy into gamma store */ |
5031 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
5032 | ret = -EINVAL; | |
5033 | goto out; | |
5034 | } | |
5035 | ||
5036 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
5037 | r_base = crtc->gamma_store; | |
5038 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { | |
5039 | ret = -EFAULT; | |
5040 | goto out; | |
5041 | } | |
5042 | ||
5043 | g_base = r_base + size; | |
5044 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { | |
5045 | ret = -EFAULT; | |
5046 | goto out; | |
5047 | } | |
5048 | ||
5049 | b_base = g_base + size; | |
5050 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { | |
5051 | ret = -EFAULT; | |
5052 | goto out; | |
5053 | } | |
5054 | ||
7203425a | 5055 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
f453ba04 DA |
5056 | |
5057 | out: | |
84849903 | 5058 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
5059 | return ret; |
5060 | ||
5061 | } | |
5062 | ||
c8e32cc1 DV |
5063 | /** |
5064 | * drm_mode_gamma_get_ioctl - get the gamma table | |
5065 | * @dev: DRM device | |
5066 | * @data: ioctl data | |
5067 | * @file_priv: DRM file info | |
5068 | * | |
5069 | * Copy the current gamma table into the storage provided. This also provides | |
5070 | * the gamma table size the driver expects, which can be used to size the | |
5071 | * allocated storage. | |
5072 | * | |
5073 | * Called by the user via ioctl. | |
5074 | * | |
5075 | * Returns: | |
1a498633 | 5076 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5077 | */ |
f453ba04 DA |
5078 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
5079 | void *data, struct drm_file *file_priv) | |
5080 | { | |
5081 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
5082 | struct drm_crtc *crtc; |
5083 | void *r_base, *g_base, *b_base; | |
5084 | int size; | |
5085 | int ret = 0; | |
5086 | ||
fb3b06c8 DA |
5087 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
5088 | return -EINVAL; | |
5089 | ||
84849903 | 5090 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
5091 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
5092 | if (!crtc) { | |
f27657f2 | 5093 | ret = -ENOENT; |
f453ba04 DA |
5094 | goto out; |
5095 | } | |
f453ba04 DA |
5096 | |
5097 | /* memcpy into gamma store */ | |
5098 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
5099 | ret = -EINVAL; | |
5100 | goto out; | |
5101 | } | |
5102 | ||
5103 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
5104 | r_base = crtc->gamma_store; | |
5105 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { | |
5106 | ret = -EFAULT; | |
5107 | goto out; | |
5108 | } | |
5109 | ||
5110 | g_base = r_base + size; | |
5111 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { | |
5112 | ret = -EFAULT; | |
5113 | goto out; | |
5114 | } | |
5115 | ||
5116 | b_base = g_base + size; | |
5117 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { | |
5118 | ret = -EFAULT; | |
5119 | goto out; | |
5120 | } | |
5121 | out: | |
84849903 | 5122 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
5123 | return ret; |
5124 | } | |
d91d8a3f | 5125 | |
c8e32cc1 DV |
5126 | /** |
5127 | * drm_mode_page_flip_ioctl - schedule an asynchronous fb update | |
5128 | * @dev: DRM device | |
5129 | * @data: ioctl data | |
5130 | * @file_priv: DRM file info | |
5131 | * | |
5132 | * This schedules an asynchronous update on a given CRTC, called page flip. | |
5133 | * Optionally a drm event is generated to signal the completion of the event. | |
5134 | * Generic drivers cannot assume that a pageflip with changed framebuffer | |
5135 | * properties (including driver specific metadata like tiling layout) will work, | |
5136 | * but some drivers support e.g. pixel format changes through the pageflip | |
5137 | * ioctl. | |
5138 | * | |
5139 | * Called by the user via ioctl. | |
5140 | * | |
5141 | * Returns: | |
1a498633 | 5142 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5143 | */ |
d91d8a3f KH |
5144 | int drm_mode_page_flip_ioctl(struct drm_device *dev, |
5145 | void *data, struct drm_file *file_priv) | |
5146 | { | |
5147 | struct drm_mode_crtc_page_flip *page_flip = data; | |
d91d8a3f | 5148 | struct drm_crtc *crtc; |
3d30a59b | 5149 | struct drm_framebuffer *fb = NULL; |
d91d8a3f KH |
5150 | struct drm_pending_vblank_event *e = NULL; |
5151 | unsigned long flags; | |
5152 | int ret = -EINVAL; | |
5153 | ||
5154 | if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || | |
5155 | page_flip->reserved != 0) | |
5156 | return -EINVAL; | |
5157 | ||
62f2104f KP |
5158 | if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) |
5159 | return -EINVAL; | |
5160 | ||
a2b34e22 RC |
5161 | crtc = drm_crtc_find(dev, page_flip->crtc_id); |
5162 | if (!crtc) | |
f27657f2 | 5163 | return -ENOENT; |
d91d8a3f | 5164 | |
4d02e2de | 5165 | drm_modeset_lock_crtc(crtc, crtc->primary); |
f4510a27 | 5166 | if (crtc->primary->fb == NULL) { |
90c1efdd CW |
5167 | /* The framebuffer is currently unbound, presumably |
5168 | * due to a hotplug event, that userspace has not | |
5169 | * yet discovered. | |
5170 | */ | |
5171 | ret = -EBUSY; | |
5172 | goto out; | |
5173 | } | |
5174 | ||
d91d8a3f KH |
5175 | if (crtc->funcs->page_flip == NULL) |
5176 | goto out; | |
5177 | ||
786b99ed | 5178 | fb = drm_framebuffer_lookup(dev, page_flip->fb_id); |
37c4e705 VS |
5179 | if (!fb) { |
5180 | ret = -ENOENT; | |
d91d8a3f | 5181 | goto out; |
37c4e705 | 5182 | } |
d91d8a3f | 5183 | |
c11e9283 DL |
5184 | ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); |
5185 | if (ret) | |
5f61bb42 | 5186 | goto out; |
5f61bb42 | 5187 | |
f4510a27 | 5188 | if (crtc->primary->fb->pixel_format != fb->pixel_format) { |
909d9cda LP |
5189 | DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); |
5190 | ret = -EINVAL; | |
5191 | goto out; | |
5192 | } | |
5193 | ||
d91d8a3f KH |
5194 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
5195 | ret = -ENOMEM; | |
5196 | spin_lock_irqsave(&dev->event_lock, flags); | |
f76511b9 | 5197 | if (file_priv->event_space < sizeof(e->event)) { |
d91d8a3f KH |
5198 | spin_unlock_irqrestore(&dev->event_lock, flags); |
5199 | goto out; | |
5200 | } | |
f76511b9 | 5201 | file_priv->event_space -= sizeof(e->event); |
d91d8a3f KH |
5202 | spin_unlock_irqrestore(&dev->event_lock, flags); |
5203 | ||
f76511b9 | 5204 | e = kzalloc(sizeof(*e), GFP_KERNEL); |
d91d8a3f KH |
5205 | if (e == NULL) { |
5206 | spin_lock_irqsave(&dev->event_lock, flags); | |
f76511b9 | 5207 | file_priv->event_space += sizeof(e->event); |
d91d8a3f KH |
5208 | spin_unlock_irqrestore(&dev->event_lock, flags); |
5209 | goto out; | |
5210 | } | |
5211 | ||
7bd4d7be | 5212 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; |
f76511b9 | 5213 | e->event.base.length = sizeof(e->event); |
d91d8a3f KH |
5214 | e->event.user_data = page_flip->user_data; |
5215 | e->base.event = &e->event.base; | |
5216 | e->base.file_priv = file_priv; | |
5217 | e->base.destroy = | |
5218 | (void (*) (struct drm_pending_event *)) kfree; | |
5219 | } | |
5220 | ||
3d30a59b | 5221 | crtc->primary->old_fb = crtc->primary->fb; |
ed8d1975 | 5222 | ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); |
d91d8a3f | 5223 | if (ret) { |
aef6a7ee JS |
5224 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
5225 | spin_lock_irqsave(&dev->event_lock, flags); | |
f76511b9 | 5226 | file_priv->event_space += sizeof(e->event); |
aef6a7ee JS |
5227 | spin_unlock_irqrestore(&dev->event_lock, flags); |
5228 | kfree(e); | |
5229 | } | |
b0d12325 | 5230 | /* Keep the old fb, don't unref it. */ |
3d30a59b | 5231 | crtc->primary->old_fb = NULL; |
b0d12325 | 5232 | } else { |
3cb43cc0 | 5233 | crtc->primary->fb = fb; |
b0d12325 DV |
5234 | /* Unref only the old framebuffer. */ |
5235 | fb = NULL; | |
d91d8a3f KH |
5236 | } |
5237 | ||
5238 | out: | |
b0d12325 DV |
5239 | if (fb) |
5240 | drm_framebuffer_unreference(fb); | |
3d30a59b DV |
5241 | if (crtc->primary->old_fb) |
5242 | drm_framebuffer_unreference(crtc->primary->old_fb); | |
5243 | crtc->primary->old_fb = NULL; | |
d059f652 | 5244 | drm_modeset_unlock_crtc(crtc); |
b4d5e7d1 | 5245 | |
d91d8a3f KH |
5246 | return ret; |
5247 | } | |
eb033556 | 5248 | |
c8e32cc1 DV |
5249 | /** |
5250 | * drm_mode_config_reset - call ->reset callbacks | |
5251 | * @dev: drm device | |
5252 | * | |
5253 | * This functions calls all the crtc's, encoder's and connector's ->reset | |
5254 | * callback. Drivers can use this in e.g. their driver load or resume code to | |
5255 | * reset hardware and software state. | |
5256 | */ | |
eb033556 CW |
5257 | void drm_mode_config_reset(struct drm_device *dev) |
5258 | { | |
5259 | struct drm_crtc *crtc; | |
2a0d7cfd | 5260 | struct drm_plane *plane; |
eb033556 CW |
5261 | struct drm_encoder *encoder; |
5262 | struct drm_connector *connector; | |
5263 | ||
e4f62546 | 5264 | drm_for_each_plane(plane, dev) |
2a0d7cfd DV |
5265 | if (plane->funcs->reset) |
5266 | plane->funcs->reset(plane); | |
5267 | ||
e4f62546 | 5268 | drm_for_each_crtc(crtc, dev) |
eb033556 CW |
5269 | if (crtc->funcs->reset) |
5270 | crtc->funcs->reset(crtc); | |
5271 | ||
e4f62546 | 5272 | drm_for_each_encoder(encoder, dev) |
eb033556 CW |
5273 | if (encoder->funcs->reset) |
5274 | encoder->funcs->reset(encoder); | |
5275 | ||
f8c2ba31 | 5276 | mutex_lock(&dev->mode_config.mutex); |
4eebf60b | 5277 | drm_for_each_connector(connector, dev) |
eb033556 CW |
5278 | if (connector->funcs->reset) |
5279 | connector->funcs->reset(connector); | |
f8c2ba31 | 5280 | mutex_unlock(&dev->mode_config.mutex); |
eb033556 CW |
5281 | } |
5282 | EXPORT_SYMBOL(drm_mode_config_reset); | |
ff72145b | 5283 | |
c8e32cc1 DV |
5284 | /** |
5285 | * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer | |
5286 | * @dev: DRM device | |
5287 | * @data: ioctl data | |
5288 | * @file_priv: DRM file info | |
5289 | * | |
5290 | * This creates a new dumb buffer in the driver's backing storage manager (GEM, | |
5291 | * TTM or something else entirely) and returns the resulting buffer handle. This | |
5292 | * handle can then be wrapped up into a framebuffer modeset object. | |
5293 | * | |
5294 | * Note that userspace is not allowed to use such objects for render | |
5295 | * acceleration - drivers must create their own private ioctls for such a use | |
5296 | * case. | |
5297 | * | |
5298 | * Called by the user via ioctl. | |
5299 | * | |
5300 | * Returns: | |
1a498633 | 5301 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5302 | */ |
ff72145b DA |
5303 | int drm_mode_create_dumb_ioctl(struct drm_device *dev, |
5304 | void *data, struct drm_file *file_priv) | |
5305 | { | |
5306 | struct drm_mode_create_dumb *args = data; | |
b28cd41f | 5307 | u32 cpp, stride, size; |
ff72145b DA |
5308 | |
5309 | if (!dev->driver->dumb_create) | |
5310 | return -ENOSYS; | |
b28cd41f DH |
5311 | if (!args->width || !args->height || !args->bpp) |
5312 | return -EINVAL; | |
5313 | ||
5314 | /* overflow checks for 32bit size calculations */ | |
00e72089 | 5315 | /* NOTE: DIV_ROUND_UP() can overflow */ |
b28cd41f | 5316 | cpp = DIV_ROUND_UP(args->bpp, 8); |
00e72089 | 5317 | if (!cpp || cpp > 0xffffffffU / args->width) |
b28cd41f DH |
5318 | return -EINVAL; |
5319 | stride = cpp * args->width; | |
5320 | if (args->height > 0xffffffffU / stride) | |
5321 | return -EINVAL; | |
5322 | ||
5323 | /* test for wrap-around */ | |
5324 | size = args->height * stride; | |
5325 | if (PAGE_ALIGN(size) == 0) | |
5326 | return -EINVAL; | |
5327 | ||
f6085952 TR |
5328 | /* |
5329 | * handle, pitch and size are output parameters. Zero them out to | |
5330 | * prevent drivers from accidentally using uninitialized data. Since | |
5331 | * not all existing userspace is clearing these fields properly we | |
5332 | * cannot reject IOCTL with garbage in them. | |
5333 | */ | |
5334 | args->handle = 0; | |
5335 | args->pitch = 0; | |
5336 | args->size = 0; | |
5337 | ||
ff72145b DA |
5338 | return dev->driver->dumb_create(file_priv, dev, args); |
5339 | } | |
5340 | ||
c8e32cc1 DV |
5341 | /** |
5342 | * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer | |
5343 | * @dev: DRM device | |
5344 | * @data: ioctl data | |
5345 | * @file_priv: DRM file info | |
5346 | * | |
5347 | * Allocate an offset in the drm device node's address space to be able to | |
5348 | * memory map a dumb buffer. | |
5349 | * | |
5350 | * Called by the user via ioctl. | |
5351 | * | |
5352 | * Returns: | |
1a498633 | 5353 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5354 | */ |
ff72145b DA |
5355 | int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, |
5356 | void *data, struct drm_file *file_priv) | |
5357 | { | |
5358 | struct drm_mode_map_dumb *args = data; | |
5359 | ||
5360 | /* call driver ioctl to get mmap offset */ | |
5361 | if (!dev->driver->dumb_map_offset) | |
5362 | return -ENOSYS; | |
5363 | ||
5364 | return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); | |
5365 | } | |
5366 | ||
c8e32cc1 DV |
5367 | /** |
5368 | * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer | |
5369 | * @dev: DRM device | |
5370 | * @data: ioctl data | |
5371 | * @file_priv: DRM file info | |
5372 | * | |
5373 | * This destroys the userspace handle for the given dumb backing storage buffer. | |
5374 | * Since buffer objects must be reference counted in the kernel a buffer object | |
5375 | * won't be immediately freed if a framebuffer modeset object still uses it. | |
5376 | * | |
5377 | * Called by the user via ioctl. | |
5378 | * | |
5379 | * Returns: | |
1a498633 | 5380 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5381 | */ |
ff72145b DA |
5382 | int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, |
5383 | void *data, struct drm_file *file_priv) | |
5384 | { | |
5385 | struct drm_mode_destroy_dumb *args = data; | |
5386 | ||
5387 | if (!dev->driver->dumb_destroy) | |
5388 | return -ENOSYS; | |
5389 | ||
5390 | return dev->driver->dumb_destroy(file_priv, dev, args->handle); | |
5391 | } | |
248dbc23 | 5392 | |
c8e32cc1 DV |
5393 | /** |
5394 | * drm_fb_get_bpp_depth - get the bpp/depth values for format | |
5395 | * @format: pixel format (DRM_FORMAT_*) | |
5396 | * @depth: storage for the depth value | |
5397 | * @bpp: storage for the bpp value | |
5398 | * | |
5399 | * This only supports RGB formats here for compat with code that doesn't use | |
5400 | * pixel formats directly yet. | |
248dbc23 DA |
5401 | */ |
5402 | void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, | |
5403 | int *bpp) | |
5404 | { | |
5405 | switch (format) { | |
c51a6bc5 | 5406 | case DRM_FORMAT_C8: |
04b3924d VS |
5407 | case DRM_FORMAT_RGB332: |
5408 | case DRM_FORMAT_BGR233: | |
248dbc23 DA |
5409 | *depth = 8; |
5410 | *bpp = 8; | |
5411 | break; | |
04b3924d VS |
5412 | case DRM_FORMAT_XRGB1555: |
5413 | case DRM_FORMAT_XBGR1555: | |
5414 | case DRM_FORMAT_RGBX5551: | |
5415 | case DRM_FORMAT_BGRX5551: | |
5416 | case DRM_FORMAT_ARGB1555: | |
5417 | case DRM_FORMAT_ABGR1555: | |
5418 | case DRM_FORMAT_RGBA5551: | |
5419 | case DRM_FORMAT_BGRA5551: | |
248dbc23 DA |
5420 | *depth = 15; |
5421 | *bpp = 16; | |
5422 | break; | |
04b3924d VS |
5423 | case DRM_FORMAT_RGB565: |
5424 | case DRM_FORMAT_BGR565: | |
248dbc23 DA |
5425 | *depth = 16; |
5426 | *bpp = 16; | |
5427 | break; | |
04b3924d VS |
5428 | case DRM_FORMAT_RGB888: |
5429 | case DRM_FORMAT_BGR888: | |
5430 | *depth = 24; | |
5431 | *bpp = 24; | |
5432 | break; | |
5433 | case DRM_FORMAT_XRGB8888: | |
5434 | case DRM_FORMAT_XBGR8888: | |
5435 | case DRM_FORMAT_RGBX8888: | |
5436 | case DRM_FORMAT_BGRX8888: | |
248dbc23 DA |
5437 | *depth = 24; |
5438 | *bpp = 32; | |
5439 | break; | |
04b3924d VS |
5440 | case DRM_FORMAT_XRGB2101010: |
5441 | case DRM_FORMAT_XBGR2101010: | |
5442 | case DRM_FORMAT_RGBX1010102: | |
5443 | case DRM_FORMAT_BGRX1010102: | |
5444 | case DRM_FORMAT_ARGB2101010: | |
5445 | case DRM_FORMAT_ABGR2101010: | |
5446 | case DRM_FORMAT_RGBA1010102: | |
5447 | case DRM_FORMAT_BGRA1010102: | |
248dbc23 DA |
5448 | *depth = 30; |
5449 | *bpp = 32; | |
5450 | break; | |
04b3924d VS |
5451 | case DRM_FORMAT_ARGB8888: |
5452 | case DRM_FORMAT_ABGR8888: | |
5453 | case DRM_FORMAT_RGBA8888: | |
5454 | case DRM_FORMAT_BGRA8888: | |
248dbc23 DA |
5455 | *depth = 32; |
5456 | *bpp = 32; | |
5457 | break; | |
5458 | default: | |
23c453a4 VS |
5459 | DRM_DEBUG_KMS("unsupported pixel format %s\n", |
5460 | drm_get_format_name(format)); | |
248dbc23 DA |
5461 | *depth = 0; |
5462 | *bpp = 0; | |
5463 | break; | |
5464 | } | |
5465 | } | |
5466 | EXPORT_SYMBOL(drm_fb_get_bpp_depth); | |
141670e9 VS |
5467 | |
5468 | /** | |
5469 | * drm_format_num_planes - get the number of planes for format | |
5470 | * @format: pixel format (DRM_FORMAT_*) | |
5471 | * | |
c8e32cc1 | 5472 | * Returns: |
141670e9 VS |
5473 | * The number of planes used by the specified pixel format. |
5474 | */ | |
5475 | int drm_format_num_planes(uint32_t format) | |
5476 | { | |
5477 | switch (format) { | |
5478 | case DRM_FORMAT_YUV410: | |
5479 | case DRM_FORMAT_YVU410: | |
5480 | case DRM_FORMAT_YUV411: | |
5481 | case DRM_FORMAT_YVU411: | |
5482 | case DRM_FORMAT_YUV420: | |
5483 | case DRM_FORMAT_YVU420: | |
5484 | case DRM_FORMAT_YUV422: | |
5485 | case DRM_FORMAT_YVU422: | |
5486 | case DRM_FORMAT_YUV444: | |
5487 | case DRM_FORMAT_YVU444: | |
5488 | return 3; | |
5489 | case DRM_FORMAT_NV12: | |
5490 | case DRM_FORMAT_NV21: | |
5491 | case DRM_FORMAT_NV16: | |
5492 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
5493 | case DRM_FORMAT_NV24: |
5494 | case DRM_FORMAT_NV42: | |
141670e9 VS |
5495 | return 2; |
5496 | default: | |
5497 | return 1; | |
5498 | } | |
5499 | } | |
5500 | EXPORT_SYMBOL(drm_format_num_planes); | |
5a86bd55 VS |
5501 | |
5502 | /** | |
5503 | * drm_format_plane_cpp - determine the bytes per pixel value | |
5504 | * @format: pixel format (DRM_FORMAT_*) | |
5505 | * @plane: plane index | |
5506 | * | |
c8e32cc1 | 5507 | * Returns: |
5a86bd55 VS |
5508 | * The bytes per pixel value for the specified plane. |
5509 | */ | |
5510 | int drm_format_plane_cpp(uint32_t format, int plane) | |
5511 | { | |
5512 | unsigned int depth; | |
5513 | int bpp; | |
5514 | ||
5515 | if (plane >= drm_format_num_planes(format)) | |
5516 | return 0; | |
5517 | ||
5518 | switch (format) { | |
5519 | case DRM_FORMAT_YUYV: | |
5520 | case DRM_FORMAT_YVYU: | |
5521 | case DRM_FORMAT_UYVY: | |
5522 | case DRM_FORMAT_VYUY: | |
5523 | return 2; | |
5524 | case DRM_FORMAT_NV12: | |
5525 | case DRM_FORMAT_NV21: | |
5526 | case DRM_FORMAT_NV16: | |
5527 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
5528 | case DRM_FORMAT_NV24: |
5529 | case DRM_FORMAT_NV42: | |
5a86bd55 VS |
5530 | return plane ? 2 : 1; |
5531 | case DRM_FORMAT_YUV410: | |
5532 | case DRM_FORMAT_YVU410: | |
5533 | case DRM_FORMAT_YUV411: | |
5534 | case DRM_FORMAT_YVU411: | |
5535 | case DRM_FORMAT_YUV420: | |
5536 | case DRM_FORMAT_YVU420: | |
5537 | case DRM_FORMAT_YUV422: | |
5538 | case DRM_FORMAT_YVU422: | |
5539 | case DRM_FORMAT_YUV444: | |
5540 | case DRM_FORMAT_YVU444: | |
5541 | return 1; | |
5542 | default: | |
5543 | drm_fb_get_bpp_depth(format, &depth, &bpp); | |
5544 | return bpp >> 3; | |
5545 | } | |
5546 | } | |
5547 | EXPORT_SYMBOL(drm_format_plane_cpp); | |
01b68b04 VS |
5548 | |
5549 | /** | |
5550 | * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor | |
5551 | * @format: pixel format (DRM_FORMAT_*) | |
5552 | * | |
c8e32cc1 | 5553 | * Returns: |
01b68b04 VS |
5554 | * The horizontal chroma subsampling factor for the |
5555 | * specified pixel format. | |
5556 | */ | |
5557 | int drm_format_horz_chroma_subsampling(uint32_t format) | |
5558 | { | |
5559 | switch (format) { | |
5560 | case DRM_FORMAT_YUV411: | |
5561 | case DRM_FORMAT_YVU411: | |
5562 | case DRM_FORMAT_YUV410: | |
5563 | case DRM_FORMAT_YVU410: | |
5564 | return 4; | |
5565 | case DRM_FORMAT_YUYV: | |
5566 | case DRM_FORMAT_YVYU: | |
5567 | case DRM_FORMAT_UYVY: | |
5568 | case DRM_FORMAT_VYUY: | |
5569 | case DRM_FORMAT_NV12: | |
5570 | case DRM_FORMAT_NV21: | |
5571 | case DRM_FORMAT_NV16: | |
5572 | case DRM_FORMAT_NV61: | |
5573 | case DRM_FORMAT_YUV422: | |
5574 | case DRM_FORMAT_YVU422: | |
5575 | case DRM_FORMAT_YUV420: | |
5576 | case DRM_FORMAT_YVU420: | |
5577 | return 2; | |
5578 | default: | |
5579 | return 1; | |
5580 | } | |
5581 | } | |
5582 | EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); | |
5583 | ||
5584 | /** | |
5585 | * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor | |
5586 | * @format: pixel format (DRM_FORMAT_*) | |
5587 | * | |
c8e32cc1 | 5588 | * Returns: |
01b68b04 VS |
5589 | * The vertical chroma subsampling factor for the |
5590 | * specified pixel format. | |
5591 | */ | |
5592 | int drm_format_vert_chroma_subsampling(uint32_t format) | |
5593 | { | |
5594 | switch (format) { | |
5595 | case DRM_FORMAT_YUV410: | |
5596 | case DRM_FORMAT_YVU410: | |
5597 | return 4; | |
5598 | case DRM_FORMAT_YUV420: | |
5599 | case DRM_FORMAT_YVU420: | |
5600 | case DRM_FORMAT_NV12: | |
5601 | case DRM_FORMAT_NV21: | |
5602 | return 2; | |
5603 | default: | |
5604 | return 1; | |
5605 | } | |
5606 | } | |
5607 | EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); | |
87d24fc3 | 5608 | |
3c9855f6 VS |
5609 | /** |
5610 | * drm_rotation_simplify() - Try to simplify the rotation | |
5611 | * @rotation: Rotation to be simplified | |
5612 | * @supported_rotations: Supported rotations | |
5613 | * | |
5614 | * Attempt to simplify the rotation to a form that is supported. | |
5615 | * Eg. if the hardware supports everything except DRM_REFLECT_X | |
5616 | * one could call this function like this: | |
5617 | * | |
5618 | * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) | | |
5619 | * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) | | |
5620 | * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y)); | |
5621 | * | |
5622 | * to eliminate the DRM_ROTATE_X flag. Depending on what kind of | |
5623 | * transforms the hardware supports, this function may not | |
5624 | * be able to produce a supported transform, so the caller should | |
5625 | * check the result afterwards. | |
5626 | */ | |
5627 | unsigned int drm_rotation_simplify(unsigned int rotation, | |
5628 | unsigned int supported_rotations) | |
5629 | { | |
5630 | if (rotation & ~supported_rotations) { | |
5631 | rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y); | |
5632 | rotation = (rotation & ~0xf) | BIT((ffs(rotation & 0xf) + 1) % 4); | |
5633 | } | |
5634 | ||
5635 | return rotation; | |
5636 | } | |
5637 | EXPORT_SYMBOL(drm_rotation_simplify); | |
5638 | ||
87d24fc3 LP |
5639 | /** |
5640 | * drm_mode_config_init - initialize DRM mode_configuration structure | |
5641 | * @dev: DRM device | |
5642 | * | |
5643 | * Initialize @dev's mode_config structure, used for tracking the graphics | |
5644 | * configuration of @dev. | |
5645 | * | |
5646 | * Since this initializes the modeset locks, no locking is possible. Which is no | |
5647 | * problem, since this should happen single threaded at init time. It is the | |
5648 | * driver's problem to ensure this guarantee. | |
5649 | * | |
5650 | */ | |
5651 | void drm_mode_config_init(struct drm_device *dev) | |
5652 | { | |
5653 | mutex_init(&dev->mode_config.mutex); | |
51fd371b | 5654 | drm_modeset_lock_init(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
5655 | mutex_init(&dev->mode_config.idr_mutex); |
5656 | mutex_init(&dev->mode_config.fb_lock); | |
8fb6e7a5 | 5657 | mutex_init(&dev->mode_config.blob_lock); |
87d24fc3 LP |
5658 | INIT_LIST_HEAD(&dev->mode_config.fb_list); |
5659 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); | |
5660 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
5661 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); | |
5662 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
5663 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
5664 | INIT_LIST_HEAD(&dev->mode_config.plane_list); | |
5665 | idr_init(&dev->mode_config.crtc_idr); | |
138f9ebb | 5666 | idr_init(&dev->mode_config.tile_idr); |
87d24fc3 LP |
5667 | |
5668 | drm_modeset_lock_all(dev); | |
6b4959f4 | 5669 | drm_mode_create_standard_properties(dev); |
87d24fc3 LP |
5670 | drm_modeset_unlock_all(dev); |
5671 | ||
5672 | /* Just to be sure */ | |
5673 | dev->mode_config.num_fb = 0; | |
5674 | dev->mode_config.num_connector = 0; | |
5675 | dev->mode_config.num_crtc = 0; | |
5676 | dev->mode_config.num_encoder = 0; | |
e27dde3e MR |
5677 | dev->mode_config.num_overlay_plane = 0; |
5678 | dev->mode_config.num_total_plane = 0; | |
87d24fc3 LP |
5679 | } |
5680 | EXPORT_SYMBOL(drm_mode_config_init); | |
5681 | ||
5682 | /** | |
5683 | * drm_mode_config_cleanup - free up DRM mode_config info | |
5684 | * @dev: DRM device | |
5685 | * | |
5686 | * Free up all the connectors and CRTCs associated with this DRM device, then | |
5687 | * free up the framebuffers and associated buffer objects. | |
5688 | * | |
5689 | * Note that since this /should/ happen single-threaded at driver/device | |
5690 | * teardown time, no locking is required. It's the driver's job to ensure that | |
5691 | * this guarantee actually holds true. | |
5692 | * | |
5693 | * FIXME: cleanup any dangling user buffer objects too | |
5694 | */ | |
5695 | void drm_mode_config_cleanup(struct drm_device *dev) | |
5696 | { | |
5697 | struct drm_connector *connector, *ot; | |
5698 | struct drm_crtc *crtc, *ct; | |
5699 | struct drm_encoder *encoder, *enct; | |
5700 | struct drm_framebuffer *fb, *fbt; | |
5701 | struct drm_property *property, *pt; | |
5702 | struct drm_property_blob *blob, *bt; | |
5703 | struct drm_plane *plane, *plt; | |
5704 | ||
5705 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
5706 | head) { | |
5707 | encoder->funcs->destroy(encoder); | |
5708 | } | |
5709 | ||
5710 | list_for_each_entry_safe(connector, ot, | |
5711 | &dev->mode_config.connector_list, head) { | |
5712 | connector->funcs->destroy(connector); | |
5713 | } | |
5714 | ||
5715 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
5716 | head) { | |
5717 | drm_property_destroy(dev, property); | |
5718 | } | |
5719 | ||
5720 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, | |
e2f5d2ea | 5721 | head_global) { |
6bcacf51 | 5722 | drm_property_unreference_blob(blob); |
87d24fc3 LP |
5723 | } |
5724 | ||
5725 | /* | |
5726 | * Single-threaded teardown context, so it's not required to grab the | |
5727 | * fb_lock to protect against concurrent fb_list access. Contrary, it | |
5728 | * would actually deadlock with the drm_framebuffer_cleanup function. | |
5729 | * | |
5730 | * Also, if there are any framebuffers left, that's a driver leak now, | |
5731 | * so politely WARN about this. | |
5732 | */ | |
5733 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); | |
5734 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { | |
5735 | drm_framebuffer_remove(fb); | |
5736 | } | |
5737 | ||
5738 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, | |
5739 | head) { | |
5740 | plane->funcs->destroy(plane); | |
5741 | } | |
5742 | ||
5743 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { | |
5744 | crtc->funcs->destroy(crtc); | |
5745 | } | |
5746 | ||
138f9ebb | 5747 | idr_destroy(&dev->mode_config.tile_idr); |
87d24fc3 | 5748 | idr_destroy(&dev->mode_config.crtc_idr); |
51fd371b | 5749 | drm_modeset_lock_fini(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
5750 | } |
5751 | EXPORT_SYMBOL(drm_mode_config_cleanup); | |
c1df5f3c VS |
5752 | |
5753 | struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, | |
5754 | unsigned int supported_rotations) | |
5755 | { | |
5756 | static const struct drm_prop_enum_list props[] = { | |
5757 | { DRM_ROTATE_0, "rotate-0" }, | |
5758 | { DRM_ROTATE_90, "rotate-90" }, | |
5759 | { DRM_ROTATE_180, "rotate-180" }, | |
5760 | { DRM_ROTATE_270, "rotate-270" }, | |
5761 | { DRM_REFLECT_X, "reflect-x" }, | |
5762 | { DRM_REFLECT_Y, "reflect-y" }, | |
5763 | }; | |
5764 | ||
5765 | return drm_property_create_bitmask(dev, 0, "rotation", | |
5766 | props, ARRAY_SIZE(props), | |
5767 | supported_rotations); | |
5768 | } | |
5769 | EXPORT_SYMBOL(drm_mode_create_rotation_property); | |
138f9ebb DA |
5770 | |
5771 | /** | |
5772 | * DOC: Tile group | |
5773 | * | |
5774 | * Tile groups are used to represent tiled monitors with a unique | |
5775 | * integer identifier. Tiled monitors using DisplayID v1.3 have | |
5776 | * a unique 8-byte handle, we store this in a tile group, so we | |
5777 | * have a common identifier for all tiles in a monitor group. | |
5778 | */ | |
5779 | static void drm_tile_group_free(struct kref *kref) | |
5780 | { | |
5781 | struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount); | |
5782 | struct drm_device *dev = tg->dev; | |
5783 | mutex_lock(&dev->mode_config.idr_mutex); | |
5784 | idr_remove(&dev->mode_config.tile_idr, tg->id); | |
5785 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5786 | kfree(tg); | |
5787 | } | |
5788 | ||
5789 | /** | |
5790 | * drm_mode_put_tile_group - drop a reference to a tile group. | |
5791 | * @dev: DRM device | |
5792 | * @tg: tile group to drop reference to. | |
5793 | * | |
5794 | * drop reference to tile group and free if 0. | |
5795 | */ | |
5796 | void drm_mode_put_tile_group(struct drm_device *dev, | |
5797 | struct drm_tile_group *tg) | |
5798 | { | |
5799 | kref_put(&tg->refcount, drm_tile_group_free); | |
5800 | } | |
5801 | ||
5802 | /** | |
5803 | * drm_mode_get_tile_group - get a reference to an existing tile group | |
5804 | * @dev: DRM device | |
5805 | * @topology: 8-bytes unique per monitor. | |
5806 | * | |
5807 | * Use the unique bytes to get a reference to an existing tile group. | |
5808 | * | |
5809 | * RETURNS: | |
5810 | * tile group or NULL if not found. | |
5811 | */ | |
5812 | struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, | |
5813 | char topology[8]) | |
5814 | { | |
5815 | struct drm_tile_group *tg; | |
5816 | int id; | |
5817 | mutex_lock(&dev->mode_config.idr_mutex); | |
5818 | idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) { | |
5819 | if (!memcmp(tg->group_data, topology, 8)) { | |
5820 | if (!kref_get_unless_zero(&tg->refcount)) | |
5821 | tg = NULL; | |
5822 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5823 | return tg; | |
5824 | } | |
5825 | } | |
5826 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5827 | return NULL; | |
5828 | } | |
81ddd1bc | 5829 | EXPORT_SYMBOL(drm_mode_get_tile_group); |
138f9ebb DA |
5830 | |
5831 | /** | |
5832 | * drm_mode_create_tile_group - create a tile group from a displayid description | |
5833 | * @dev: DRM device | |
5834 | * @topology: 8-bytes unique per monitor. | |
5835 | * | |
5836 | * Create a tile group for the unique monitor, and get a unique | |
5837 | * identifier for the tile group. | |
5838 | * | |
5839 | * RETURNS: | |
5840 | * new tile group or error. | |
5841 | */ | |
5842 | struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, | |
5843 | char topology[8]) | |
5844 | { | |
5845 | struct drm_tile_group *tg; | |
5846 | int ret; | |
5847 | ||
5848 | tg = kzalloc(sizeof(*tg), GFP_KERNEL); | |
5849 | if (!tg) | |
5850 | return ERR_PTR(-ENOMEM); | |
5851 | ||
5852 | kref_init(&tg->refcount); | |
5853 | memcpy(tg->group_data, topology, 8); | |
5854 | tg->dev = dev; | |
5855 | ||
5856 | mutex_lock(&dev->mode_config.idr_mutex); | |
5857 | ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL); | |
5858 | if (ret >= 0) { | |
5859 | tg->id = ret; | |
5860 | } else { | |
5861 | kfree(tg); | |
5862 | tg = ERR_PTR(ret); | |
5863 | } | |
5864 | ||
5865 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5866 | return tg; | |
5867 | } | |
81ddd1bc | 5868 | EXPORT_SYMBOL(drm_mode_create_tile_group); |