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f453ba04 DA |
1 | /* |
2 | * Copyright (c) 2006-2008 Intel Corporation | |
3 | * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> | |
4 | * Copyright (c) 2008 Red Hat Inc. | |
5 | * | |
6 | * DRM core CRTC related functions | |
7 | * | |
8 | * Permission to use, copy, modify, distribute, and sell this software and its | |
9 | * documentation for any purpose is hereby granted without fee, provided that | |
10 | * the above copyright notice appear in all copies and that both that copyright | |
11 | * notice and this permission notice appear in supporting documentation, and | |
12 | * that the name of the copyright holders not be used in advertising or | |
13 | * publicity pertaining to distribution of the software without specific, | |
14 | * written prior permission. The copyright holders make no representations | |
15 | * about the suitability of this software for any purpose. It is provided "as | |
16 | * is" without express or implied warranty. | |
17 | * | |
18 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
19 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
20 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
21 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
22 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
23 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
24 | * OF THIS SOFTWARE. | |
25 | * | |
26 | * Authors: | |
27 | * Keith Packard | |
28 | * Eric Anholt <eric@anholt.net> | |
29 | * Dave Airlie <airlied@linux.ie> | |
30 | * Jesse Barnes <jesse.barnes@intel.com> | |
31 | */ | |
6ba6d03e | 32 | #include <linux/ctype.h> |
f453ba04 | 33 | #include <linux/list.h> |
5a0e3ad6 | 34 | #include <linux/slab.h> |
2d1a8a48 | 35 | #include <linux/export.h> |
760285e7 DH |
36 | #include <drm/drmP.h> |
37 | #include <drm/drm_crtc.h> | |
38 | #include <drm/drm_edid.h> | |
39 | #include <drm/drm_fourcc.h> | |
51fd371b | 40 | #include <drm/drm_modeset_lock.h> |
88a48e29 | 41 | #include <drm/drm_atomic.h> |
f453ba04 | 42 | |
8bd441b2 | 43 | #include "drm_crtc_internal.h" |
67d0ec4e | 44 | #include "drm_internal.h" |
8bd441b2 | 45 | |
c394c2b0 MR |
46 | static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev, |
47 | struct drm_mode_fb_cmd2 *r, | |
48 | struct drm_file *file_priv); | |
49 | ||
f453ba04 DA |
50 | /* Avoid boilerplate. I'm tired of typing. */ |
51 | #define DRM_ENUM_NAME_FN(fnname, list) \ | |
d20d3174 | 52 | const char *fnname(int val) \ |
f453ba04 DA |
53 | { \ |
54 | int i; \ | |
55 | for (i = 0; i < ARRAY_SIZE(list); i++) { \ | |
56 | if (list[i].type == val) \ | |
57 | return list[i].name; \ | |
58 | } \ | |
59 | return "(unknown)"; \ | |
60 | } | |
61 | ||
62 | /* | |
63 | * Global properties | |
64 | */ | |
4dfd909f TR |
65 | static const struct drm_prop_enum_list drm_dpms_enum_list[] = { |
66 | { DRM_MODE_DPMS_ON, "On" }, | |
f453ba04 DA |
67 | { DRM_MODE_DPMS_STANDBY, "Standby" }, |
68 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, | |
69 | { DRM_MODE_DPMS_OFF, "Off" } | |
70 | }; | |
71 | ||
72 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) | |
73 | ||
4dfd909f | 74 | static const struct drm_prop_enum_list drm_plane_type_enum_list[] = { |
9922ab5a RC |
75 | { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, |
76 | { DRM_PLANE_TYPE_PRIMARY, "Primary" }, | |
77 | { DRM_PLANE_TYPE_CURSOR, "Cursor" }, | |
78 | }; | |
79 | ||
f453ba04 DA |
80 | /* |
81 | * Optional properties | |
82 | */ | |
4dfd909f | 83 | static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = { |
53bd8389 JB |
84 | { DRM_MODE_SCALE_NONE, "None" }, |
85 | { DRM_MODE_SCALE_FULLSCREEN, "Full" }, | |
86 | { DRM_MODE_SCALE_CENTER, "Center" }, | |
87 | { DRM_MODE_SCALE_ASPECT, "Full aspect" }, | |
f453ba04 DA |
88 | }; |
89 | ||
ff587e45 VK |
90 | static const struct drm_prop_enum_list drm_aspect_ratio_enum_list[] = { |
91 | { DRM_MODE_PICTURE_ASPECT_NONE, "Automatic" }, | |
92 | { DRM_MODE_PICTURE_ASPECT_4_3, "4:3" }, | |
93 | { DRM_MODE_PICTURE_ASPECT_16_9, "16:9" }, | |
94 | }; | |
95 | ||
f453ba04 DA |
96 | /* |
97 | * Non-global properties, but "required" for certain connectors. | |
98 | */ | |
4dfd909f | 99 | static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = { |
f453ba04 DA |
100 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
101 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
102 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
103 | }; | |
104 | ||
105 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) | |
106 | ||
4dfd909f | 107 | static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = { |
f453ba04 DA |
108 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
109 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
110 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
111 | }; | |
112 | ||
113 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, | |
114 | drm_dvi_i_subconnector_enum_list) | |
115 | ||
4dfd909f | 116 | static const struct drm_prop_enum_list drm_tv_select_enum_list[] = { |
f453ba04 DA |
117 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
118 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
119 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
120 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 121 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
122 | }; |
123 | ||
124 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) | |
125 | ||
4dfd909f | 126 | static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = { |
f453ba04 DA |
127 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
128 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
129 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
130 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 131 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
132 | }; |
133 | ||
134 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, | |
135 | drm_tv_subconnector_enum_list) | |
136 | ||
d20d3174 | 137 | static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = { |
884840aa JB |
138 | { DRM_MODE_DIRTY_OFF, "Off" }, |
139 | { DRM_MODE_DIRTY_ON, "On" }, | |
140 | { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, | |
141 | }; | |
142 | ||
f453ba04 DA |
143 | struct drm_conn_prop_enum_list { |
144 | int type; | |
d20d3174 | 145 | const char *name; |
b21e3afe | 146 | struct ida ida; |
f453ba04 DA |
147 | }; |
148 | ||
149 | /* | |
150 | * Connector and encoder types. | |
151 | */ | |
4dfd909f TR |
152 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = { |
153 | { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, | |
b21e3afe IM |
154 | { DRM_MODE_CONNECTOR_VGA, "VGA" }, |
155 | { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, | |
156 | { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, | |
157 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, | |
158 | { DRM_MODE_CONNECTOR_Composite, "Composite" }, | |
159 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, | |
160 | { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, | |
161 | { DRM_MODE_CONNECTOR_Component, "Component" }, | |
162 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, | |
163 | { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, | |
164 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, | |
165 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, | |
166 | { DRM_MODE_CONNECTOR_TV, "TV" }, | |
167 | { DRM_MODE_CONNECTOR_eDP, "eDP" }, | |
168 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, | |
b8923273 | 169 | { DRM_MODE_CONNECTOR_DSI, "DSI" }, |
f453ba04 DA |
170 | }; |
171 | ||
4dfd909f TR |
172 | static const struct drm_prop_enum_list drm_encoder_enum_list[] = { |
173 | { DRM_MODE_ENCODER_NONE, "None" }, | |
f453ba04 DA |
174 | { DRM_MODE_ENCODER_DAC, "DAC" }, |
175 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, | |
176 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, | |
177 | { DRM_MODE_ENCODER_TVDAC, "TV" }, | |
a7331e5c | 178 | { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, |
b8923273 | 179 | { DRM_MODE_ENCODER_DSI, "DSI" }, |
182407a6 | 180 | { DRM_MODE_ENCODER_DPMST, "DP MST" }, |
f453ba04 DA |
181 | }; |
182 | ||
4dfd909f | 183 | static const struct drm_prop_enum_list drm_subpixel_enum_list[] = { |
ac1bb36c JB |
184 | { SubPixelUnknown, "Unknown" }, |
185 | { SubPixelHorizontalRGB, "Horizontal RGB" }, | |
186 | { SubPixelHorizontalBGR, "Horizontal BGR" }, | |
187 | { SubPixelVerticalRGB, "Vertical RGB" }, | |
188 | { SubPixelVerticalBGR, "Vertical BGR" }, | |
189 | { SubPixelNone, "None" }, | |
190 | }; | |
191 | ||
b21e3afe IM |
192 | void drm_connector_ida_init(void) |
193 | { | |
194 | int i; | |
195 | ||
196 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
197 | ida_init(&drm_connector_enum_list[i].ida); | |
198 | } | |
199 | ||
200 | void drm_connector_ida_destroy(void) | |
201 | { | |
202 | int i; | |
203 | ||
204 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
205 | ida_destroy(&drm_connector_enum_list[i].ida); | |
206 | } | |
207 | ||
c8e32cc1 DV |
208 | /** |
209 | * drm_get_connector_status_name - return a string for connector status | |
210 | * @status: connector status to compute name of | |
211 | * | |
212 | * In contrast to the other drm_get_*_name functions this one here returns a | |
213 | * const pointer and hence is threadsafe. | |
214 | */ | |
d20d3174 | 215 | const char *drm_get_connector_status_name(enum drm_connector_status status) |
f453ba04 DA |
216 | { |
217 | if (status == connector_status_connected) | |
218 | return "connected"; | |
219 | else if (status == connector_status_disconnected) | |
220 | return "disconnected"; | |
221 | else | |
222 | return "unknown"; | |
223 | } | |
ed7951dc | 224 | EXPORT_SYMBOL(drm_get_connector_status_name); |
f453ba04 | 225 | |
ac1bb36c JB |
226 | /** |
227 | * drm_get_subpixel_order_name - return a string for a given subpixel enum | |
228 | * @order: enum of subpixel_order | |
229 | * | |
230 | * Note you could abuse this and return something out of bounds, but that | |
231 | * would be a caller error. No unscrubbed user data should make it here. | |
232 | */ | |
233 | const char *drm_get_subpixel_order_name(enum subpixel_order order) | |
234 | { | |
235 | return drm_subpixel_enum_list[order].name; | |
236 | } | |
237 | EXPORT_SYMBOL(drm_get_subpixel_order_name); | |
238 | ||
6ba6d03e VS |
239 | static char printable_char(int c) |
240 | { | |
241 | return isascii(c) && isprint(c) ? c : '?'; | |
242 | } | |
243 | ||
c8e32cc1 DV |
244 | /** |
245 | * drm_get_format_name - return a string for drm fourcc format | |
246 | * @format: format to compute name of | |
247 | * | |
248 | * Note that the buffer used by this function is globally shared and owned by | |
249 | * the function itself. | |
250 | * | |
251 | * FIXME: This isn't really multithreading safe. | |
252 | */ | |
d20d3174 | 253 | const char *drm_get_format_name(uint32_t format) |
6ba6d03e VS |
254 | { |
255 | static char buf[32]; | |
256 | ||
257 | snprintf(buf, sizeof(buf), | |
258 | "%c%c%c%c %s-endian (0x%08x)", | |
259 | printable_char(format & 0xff), | |
260 | printable_char((format >> 8) & 0xff), | |
261 | printable_char((format >> 16) & 0xff), | |
262 | printable_char((format >> 24) & 0x7f), | |
263 | format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little", | |
264 | format); | |
265 | ||
266 | return buf; | |
267 | } | |
268 | EXPORT_SYMBOL(drm_get_format_name); | |
269 | ||
2ee39452 DA |
270 | /* |
271 | * Internal function to assign a slot in the object idr and optionally | |
272 | * register the object into the idr. | |
273 | */ | |
274 | static int drm_mode_object_get_reg(struct drm_device *dev, | |
275 | struct drm_mode_object *obj, | |
276 | uint32_t obj_type, | |
277 | bool register_obj) | |
278 | { | |
279 | int ret; | |
280 | ||
281 | mutex_lock(&dev->mode_config.idr_mutex); | |
282 | ret = idr_alloc(&dev->mode_config.crtc_idr, register_obj ? obj : NULL, 1, 0, GFP_KERNEL); | |
283 | if (ret >= 0) { | |
284 | /* | |
285 | * Set up the object linking under the protection of the idr | |
286 | * lock so that other users can't see inconsistent state. | |
287 | */ | |
288 | obj->id = ret; | |
289 | obj->type = obj_type; | |
290 | } | |
291 | mutex_unlock(&dev->mode_config.idr_mutex); | |
292 | ||
293 | return ret < 0 ? ret : 0; | |
294 | } | |
295 | ||
f453ba04 | 296 | /** |
065a50ed | 297 | * drm_mode_object_get - allocate a new modeset identifier |
f453ba04 | 298 | * @dev: DRM device |
065a50ed DV |
299 | * @obj: object pointer, used to generate unique ID |
300 | * @obj_type: object type | |
f453ba04 | 301 | * |
f453ba04 | 302 | * Create a unique identifier based on @ptr in @dev's identifier space. Used |
c8e32cc1 DV |
303 | * for tracking modes, CRTCs and connectors. Note that despite the _get postfix |
304 | * modeset identifiers are _not_ reference counted. Hence don't use this for | |
305 | * reference counted modeset objects like framebuffers. | |
f453ba04 | 306 | * |
c8e32cc1 | 307 | * Returns: |
f453ba04 DA |
308 | * New unique (relative to other objects in @dev) integer identifier for the |
309 | * object. | |
310 | */ | |
8bd441b2 DV |
311 | int drm_mode_object_get(struct drm_device *dev, |
312 | struct drm_mode_object *obj, uint32_t obj_type) | |
f453ba04 | 313 | { |
2ee39452 DA |
314 | return drm_mode_object_get_reg(dev, obj, obj_type, true); |
315 | } | |
f453ba04 | 316 | |
2ee39452 DA |
317 | static void drm_mode_object_register(struct drm_device *dev, |
318 | struct drm_mode_object *obj) | |
319 | { | |
ad2563c2 | 320 | mutex_lock(&dev->mode_config.idr_mutex); |
2ee39452 | 321 | idr_replace(&dev->mode_config.crtc_idr, obj, obj->id); |
ad2563c2 | 322 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
323 | } |
324 | ||
325 | /** | |
065a50ed | 326 | * drm_mode_object_put - free a modeset identifer |
f453ba04 | 327 | * @dev: DRM device |
065a50ed | 328 | * @object: object to free |
f453ba04 | 329 | * |
c8e32cc1 DV |
330 | * Free @id from @dev's unique identifier pool. Note that despite the _get |
331 | * postfix modeset identifiers are _not_ reference counted. Hence don't use this | |
332 | * for reference counted modeset objects like framebuffers. | |
f453ba04 | 333 | */ |
8bd441b2 DV |
334 | void drm_mode_object_put(struct drm_device *dev, |
335 | struct drm_mode_object *object) | |
f453ba04 | 336 | { |
ad2563c2 | 337 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 | 338 | idr_remove(&dev->mode_config.crtc_idr, object->id); |
ad2563c2 | 339 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
340 | } |
341 | ||
98f75de4 RC |
342 | static struct drm_mode_object *_object_find(struct drm_device *dev, |
343 | uint32_t id, uint32_t type) | |
344 | { | |
345 | struct drm_mode_object *obj = NULL; | |
346 | ||
347 | mutex_lock(&dev->mode_config.idr_mutex); | |
348 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
168c02ec DV |
349 | if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type) |
350 | obj = NULL; | |
351 | if (obj && obj->id != id) | |
352 | obj = NULL; | |
353 | /* don't leak out unref'd fb's */ | |
354 | if (obj && (obj->type == DRM_MODE_OBJECT_FB)) | |
98f75de4 RC |
355 | obj = NULL; |
356 | mutex_unlock(&dev->mode_config.idr_mutex); | |
357 | ||
358 | return obj; | |
359 | } | |
360 | ||
786b99ed DV |
361 | /** |
362 | * drm_mode_object_find - look up a drm object with static lifetime | |
363 | * @dev: drm device | |
364 | * @id: id of the mode object | |
365 | * @type: type of the mode object | |
366 | * | |
367 | * Note that framebuffers cannot be looked up with this functions - since those | |
98f75de4 RC |
368 | * are reference counted, they need special treatment. Even with |
369 | * DRM_MODE_OBJECT_ANY (although that will simply return NULL | |
370 | * rather than WARN_ON()). | |
786b99ed | 371 | */ |
7a9c9060 DV |
372 | struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
373 | uint32_t id, uint32_t type) | |
f453ba04 | 374 | { |
ad2563c2 | 375 | struct drm_mode_object *obj = NULL; |
f453ba04 | 376 | |
786b99ed DV |
377 | /* Framebuffers are reference counted and need their own lookup |
378 | * function.*/ | |
379 | WARN_ON(type == DRM_MODE_OBJECT_FB); | |
98f75de4 | 380 | obj = _object_find(dev, id, type); |
f453ba04 DA |
381 | return obj; |
382 | } | |
383 | EXPORT_SYMBOL(drm_mode_object_find); | |
384 | ||
f453ba04 DA |
385 | /** |
386 | * drm_framebuffer_init - initialize a framebuffer | |
387 | * @dev: DRM device | |
065a50ed DV |
388 | * @fb: framebuffer to be initialized |
389 | * @funcs: ... with these functions | |
f453ba04 | 390 | * |
f453ba04 DA |
391 | * Allocates an ID for the framebuffer's parent mode object, sets its mode |
392 | * functions & device file and adds it to the master fd list. | |
393 | * | |
4b096ac1 DV |
394 | * IMPORTANT: |
395 | * This functions publishes the fb and makes it available for concurrent access | |
396 | * by other users. Which means by this point the fb _must_ be fully set up - | |
397 | * since all the fb attributes are invariant over its lifetime, no further | |
398 | * locking but only correct reference counting is required. | |
399 | * | |
c8e32cc1 | 400 | * Returns: |
af901ca1 | 401 | * Zero on success, error code on failure. |
f453ba04 DA |
402 | */ |
403 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, | |
404 | const struct drm_framebuffer_funcs *funcs) | |
405 | { | |
406 | int ret; | |
407 | ||
4b096ac1 | 408 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e | 409 | kref_init(&fb->refcount); |
4b096ac1 DV |
410 | INIT_LIST_HEAD(&fb->filp_head); |
411 | fb->dev = dev; | |
412 | fb->funcs = funcs; | |
f7eff60e | 413 | |
f453ba04 | 414 | ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); |
6bfc56aa | 415 | if (ret) |
4b096ac1 | 416 | goto out; |
f453ba04 | 417 | |
f453ba04 DA |
418 | dev->mode_config.num_fb++; |
419 | list_add(&fb->head, &dev->mode_config.fb_list); | |
4b096ac1 DV |
420 | out: |
421 | mutex_unlock(&dev->mode_config.fb_lock); | |
f453ba04 DA |
422 | |
423 | return 0; | |
424 | } | |
425 | EXPORT_SYMBOL(drm_framebuffer_init); | |
426 | ||
83f45fc3 DV |
427 | /* dev->mode_config.fb_lock must be held! */ |
428 | static void __drm_framebuffer_unregister(struct drm_device *dev, | |
429 | struct drm_framebuffer *fb) | |
430 | { | |
431 | mutex_lock(&dev->mode_config.idr_mutex); | |
432 | idr_remove(&dev->mode_config.crtc_idr, fb->base.id); | |
433 | mutex_unlock(&dev->mode_config.idr_mutex); | |
434 | ||
435 | fb->base.id = 0; | |
436 | } | |
437 | ||
f7eff60e RC |
438 | static void drm_framebuffer_free(struct kref *kref) |
439 | { | |
440 | struct drm_framebuffer *fb = | |
441 | container_of(kref, struct drm_framebuffer, refcount); | |
83f45fc3 DV |
442 | struct drm_device *dev = fb->dev; |
443 | ||
444 | /* | |
445 | * The lookup idr holds a weak reference, which has not necessarily been | |
446 | * removed at this point. Check for that. | |
447 | */ | |
448 | mutex_lock(&dev->mode_config.fb_lock); | |
449 | if (fb->base.id) { | |
450 | /* Mark fb as reaped and drop idr ref. */ | |
451 | __drm_framebuffer_unregister(dev, fb); | |
452 | } | |
453 | mutex_unlock(&dev->mode_config.fb_lock); | |
454 | ||
f7eff60e RC |
455 | fb->funcs->destroy(fb); |
456 | } | |
457 | ||
2b677e8c DV |
458 | static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev, |
459 | uint32_t id) | |
460 | { | |
461 | struct drm_mode_object *obj = NULL; | |
462 | struct drm_framebuffer *fb; | |
463 | ||
464 | mutex_lock(&dev->mode_config.idr_mutex); | |
465 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
466 | if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id)) | |
467 | fb = NULL; | |
468 | else | |
469 | fb = obj_to_fb(obj); | |
470 | mutex_unlock(&dev->mode_config.idr_mutex); | |
471 | ||
472 | return fb; | |
473 | } | |
474 | ||
786b99ed DV |
475 | /** |
476 | * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference | |
477 | * @dev: drm device | |
478 | * @id: id of the fb object | |
479 | * | |
480 | * If successful, this grabs an additional reference to the framebuffer - | |
481 | * callers need to make sure to eventually unreference the returned framebuffer | |
c8e32cc1 | 482 | * again, using @drm_framebuffer_unreference. |
786b99ed DV |
483 | */ |
484 | struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, | |
485 | uint32_t id) | |
486 | { | |
786b99ed DV |
487 | struct drm_framebuffer *fb; |
488 | ||
489 | mutex_lock(&dev->mode_config.fb_lock); | |
2b677e8c | 490 | fb = __drm_framebuffer_lookup(dev, id); |
83f45fc3 DV |
491 | if (fb) { |
492 | if (!kref_get_unless_zero(&fb->refcount)) | |
493 | fb = NULL; | |
494 | } | |
786b99ed DV |
495 | mutex_unlock(&dev->mode_config.fb_lock); |
496 | ||
497 | return fb; | |
498 | } | |
499 | EXPORT_SYMBOL(drm_framebuffer_lookup); | |
500 | ||
f7eff60e RC |
501 | /** |
502 | * drm_framebuffer_unreference - unref a framebuffer | |
065a50ed DV |
503 | * @fb: framebuffer to unref |
504 | * | |
505 | * This functions decrements the fb's refcount and frees it if it drops to zero. | |
f7eff60e RC |
506 | */ |
507 | void drm_framebuffer_unreference(struct drm_framebuffer *fb) | |
508 | { | |
8291272a | 509 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
f7eff60e RC |
510 | kref_put(&fb->refcount, drm_framebuffer_free); |
511 | } | |
512 | EXPORT_SYMBOL(drm_framebuffer_unreference); | |
513 | ||
514 | /** | |
515 | * drm_framebuffer_reference - incr the fb refcnt | |
065a50ed | 516 | * @fb: framebuffer |
c8e32cc1 DV |
517 | * |
518 | * This functions increments the fb's refcount. | |
f7eff60e RC |
519 | */ |
520 | void drm_framebuffer_reference(struct drm_framebuffer *fb) | |
521 | { | |
8291272a | 522 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
f7eff60e RC |
523 | kref_get(&fb->refcount); |
524 | } | |
525 | EXPORT_SYMBOL(drm_framebuffer_reference); | |
526 | ||
36206361 DV |
527 | /** |
528 | * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr | |
529 | * @fb: fb to unregister | |
530 | * | |
531 | * Drivers need to call this when cleaning up driver-private framebuffers, e.g. | |
532 | * those used for fbdev. Note that the caller must hold a reference of it's own, | |
533 | * i.e. the object may not be destroyed through this call (since it'll lead to a | |
534 | * locking inversion). | |
535 | */ | |
536 | void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) | |
537 | { | |
2b677e8c DV |
538 | struct drm_device *dev = fb->dev; |
539 | ||
540 | mutex_lock(&dev->mode_config.fb_lock); | |
541 | /* Mark fb as reaped and drop idr ref. */ | |
542 | __drm_framebuffer_unregister(dev, fb); | |
543 | mutex_unlock(&dev->mode_config.fb_lock); | |
36206361 DV |
544 | } |
545 | EXPORT_SYMBOL(drm_framebuffer_unregister_private); | |
546 | ||
f453ba04 DA |
547 | /** |
548 | * drm_framebuffer_cleanup - remove a framebuffer object | |
549 | * @fb: framebuffer to remove | |
550 | * | |
c8e32cc1 DV |
551 | * Cleanup framebuffer. This function is intended to be used from the drivers |
552 | * ->destroy callback. It can also be used to clean up driver private | |
553 | * framebuffers embedded into a larger structure. | |
36206361 DV |
554 | * |
555 | * Note that this function does not remove the fb from active usuage - if it is | |
556 | * still used anywhere, hilarity can ensue since userspace could call getfb on | |
557 | * the id and get back -EINVAL. Obviously no concern at driver unload time. | |
558 | * | |
559 | * Also, the framebuffer will not be removed from the lookup idr - for | |
560 | * user-created framebuffers this will happen in in the rmfb ioctl. For | |
561 | * driver-private objects (e.g. for fbdev) drivers need to explicitly call | |
562 | * drm_framebuffer_unregister_private. | |
f453ba04 DA |
563 | */ |
564 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) | |
f7eff60e RC |
565 | { |
566 | struct drm_device *dev = fb->dev; | |
8faf6b18 | 567 | |
4b096ac1 | 568 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e RC |
569 | list_del(&fb->head); |
570 | dev->mode_config.num_fb--; | |
4b096ac1 | 571 | mutex_unlock(&dev->mode_config.fb_lock); |
f7eff60e RC |
572 | } |
573 | EXPORT_SYMBOL(drm_framebuffer_cleanup); | |
574 | ||
575 | /** | |
576 | * drm_framebuffer_remove - remove and unreference a framebuffer object | |
577 | * @fb: framebuffer to remove | |
578 | * | |
f7eff60e | 579 | * Scans all the CRTCs and planes in @dev's mode_config. If they're |
36206361 | 580 | * using @fb, removes it, setting it to NULL. Then drops the reference to the |
b62584e3 DV |
581 | * passed-in framebuffer. Might take the modeset locks. |
582 | * | |
583 | * Note that this function optimizes the cleanup away if the caller holds the | |
584 | * last reference to the framebuffer. It is also guaranteed to not take the | |
585 | * modeset locks in this case. | |
f7eff60e RC |
586 | */ |
587 | void drm_framebuffer_remove(struct drm_framebuffer *fb) | |
f453ba04 DA |
588 | { |
589 | struct drm_device *dev = fb->dev; | |
590 | struct drm_crtc *crtc; | |
8cf5c917 | 591 | struct drm_plane *plane; |
5ef5f72f DA |
592 | struct drm_mode_set set; |
593 | int ret; | |
f453ba04 | 594 | |
4b096ac1 | 595 | WARN_ON(!list_empty(&fb->filp_head)); |
8faf6b18 | 596 | |
b62584e3 DV |
597 | /* |
598 | * drm ABI mandates that we remove any deleted framebuffers from active | |
599 | * useage. But since most sane clients only remove framebuffers they no | |
600 | * longer need, try to optimize this away. | |
601 | * | |
602 | * Since we're holding a reference ourselves, observing a refcount of 1 | |
603 | * means that we're the last holder and can skip it. Also, the refcount | |
604 | * can never increase from 1 again, so we don't need any barriers or | |
605 | * locks. | |
606 | * | |
607 | * Note that userspace could try to race with use and instate a new | |
608 | * usage _after_ we've cleared all current ones. End result will be an | |
609 | * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot | |
610 | * in this manner. | |
611 | */ | |
612 | if (atomic_read(&fb->refcount.refcount) > 1) { | |
613 | drm_modeset_lock_all(dev); | |
614 | /* remove from any CRTC */ | |
615 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
f4510a27 | 616 | if (crtc->primary->fb == fb) { |
b62584e3 DV |
617 | /* should turn off the crtc */ |
618 | memset(&set, 0, sizeof(struct drm_mode_set)); | |
619 | set.crtc = crtc; | |
620 | set.fb = NULL; | |
621 | ret = drm_mode_set_config_internal(&set); | |
622 | if (ret) | |
623 | DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); | |
624 | } | |
5ef5f72f | 625 | } |
f453ba04 | 626 | |
b62584e3 | 627 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) { |
9125e618 VS |
628 | if (plane->fb == fb) |
629 | drm_plane_force_disable(plane); | |
8cf5c917 | 630 | } |
b62584e3 | 631 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
632 | } |
633 | ||
f7eff60e | 634 | drm_framebuffer_unreference(fb); |
f453ba04 | 635 | } |
f7eff60e | 636 | EXPORT_SYMBOL(drm_framebuffer_remove); |
f453ba04 | 637 | |
51fd371b RC |
638 | DEFINE_WW_CLASS(crtc_ww_class); |
639 | ||
f453ba04 | 640 | /** |
e13161af MR |
641 | * drm_crtc_init_with_planes - Initialise a new CRTC object with |
642 | * specified primary and cursor planes. | |
f453ba04 DA |
643 | * @dev: DRM device |
644 | * @crtc: CRTC object to init | |
e13161af MR |
645 | * @primary: Primary plane for CRTC |
646 | * @cursor: Cursor plane for CRTC | |
f453ba04 DA |
647 | * @funcs: callbacks for the new CRTC |
648 | * | |
ad6f5c34 | 649 | * Inits a new object created as base part of a driver crtc object. |
6bfc56aa | 650 | * |
c8e32cc1 | 651 | * Returns: |
6bfc56aa | 652 | * Zero on success, error code on failure. |
f453ba04 | 653 | */ |
e13161af MR |
654 | int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, |
655 | struct drm_plane *primary, | |
fc1d3e44 | 656 | struct drm_plane *cursor, |
e13161af | 657 | const struct drm_crtc_funcs *funcs) |
f453ba04 | 658 | { |
51fd371b | 659 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
660 | int ret; |
661 | ||
f453ba04 DA |
662 | crtc->dev = dev; |
663 | crtc->funcs = funcs; | |
7c80e128 | 664 | crtc->invert_dimensions = false; |
f453ba04 | 665 | |
51fd371b | 666 | drm_modeset_lock_init(&crtc->mutex); |
6bfc56aa VS |
667 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); |
668 | if (ret) | |
baf698b0 | 669 | return ret; |
f453ba04 | 670 | |
bffd9de0 PZ |
671 | crtc->base.properties = &crtc->properties; |
672 | ||
51fd371b RC |
673 | list_add_tail(&crtc->head, &config->crtc_list); |
674 | config->num_crtc++; | |
6bfc56aa | 675 | |
e13161af | 676 | crtc->primary = primary; |
fc1d3e44 | 677 | crtc->cursor = cursor; |
e13161af MR |
678 | if (primary) |
679 | primary->possible_crtcs = 1 << drm_crtc_index(crtc); | |
fc1d3e44 MR |
680 | if (cursor) |
681 | cursor->possible_crtcs = 1 << drm_crtc_index(crtc); | |
e13161af | 682 | |
eab3bbef DV |
683 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
684 | drm_object_attach_property(&crtc->base, config->prop_active, 0); | |
685 | } | |
686 | ||
baf698b0 | 687 | return 0; |
f453ba04 | 688 | } |
e13161af | 689 | EXPORT_SYMBOL(drm_crtc_init_with_planes); |
f453ba04 DA |
690 | |
691 | /** | |
ad6f5c34 | 692 | * drm_crtc_cleanup - Clean up the core crtc usage |
f453ba04 DA |
693 | * @crtc: CRTC to cleanup |
694 | * | |
ad6f5c34 VS |
695 | * This function cleans up @crtc and removes it from the DRM mode setting |
696 | * core. Note that the function does *not* free the crtc structure itself, | |
697 | * this is the responsibility of the caller. | |
f453ba04 DA |
698 | */ |
699 | void drm_crtc_cleanup(struct drm_crtc *crtc) | |
700 | { | |
701 | struct drm_device *dev = crtc->dev; | |
702 | ||
9e1c156f SK |
703 | kfree(crtc->gamma_store); |
704 | crtc->gamma_store = NULL; | |
f453ba04 | 705 | |
51fd371b RC |
706 | drm_modeset_lock_fini(&crtc->mutex); |
707 | ||
f453ba04 DA |
708 | drm_mode_object_put(dev, &crtc->base); |
709 | list_del(&crtc->head); | |
710 | dev->mode_config.num_crtc--; | |
3009c037 TR |
711 | |
712 | WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); | |
713 | if (crtc->state && crtc->funcs->atomic_destroy_state) | |
714 | crtc->funcs->atomic_destroy_state(crtc, crtc->state); | |
a18c0af1 TR |
715 | |
716 | memset(crtc, 0, sizeof(*crtc)); | |
f453ba04 DA |
717 | } |
718 | EXPORT_SYMBOL(drm_crtc_cleanup); | |
719 | ||
db5f7a6e RK |
720 | /** |
721 | * drm_crtc_index - find the index of a registered CRTC | |
722 | * @crtc: CRTC to find index for | |
723 | * | |
724 | * Given a registered CRTC, return the index of that CRTC within a DRM | |
725 | * device's list of CRTCs. | |
726 | */ | |
727 | unsigned int drm_crtc_index(struct drm_crtc *crtc) | |
728 | { | |
729 | unsigned int index = 0; | |
730 | struct drm_crtc *tmp; | |
731 | ||
732 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { | |
733 | if (tmp == crtc) | |
734 | return index; | |
735 | ||
736 | index++; | |
737 | } | |
738 | ||
739 | BUG(); | |
740 | } | |
741 | EXPORT_SYMBOL(drm_crtc_index); | |
742 | ||
86f422d5 | 743 | /* |
f453ba04 DA |
744 | * drm_mode_remove - remove and free a mode |
745 | * @connector: connector list to modify | |
746 | * @mode: mode to remove | |
747 | * | |
f453ba04 DA |
748 | * Remove @mode from @connector's mode list, then free it. |
749 | */ | |
86f422d5 LD |
750 | static void drm_mode_remove(struct drm_connector *connector, |
751 | struct drm_display_mode *mode) | |
f453ba04 DA |
752 | { |
753 | list_del(&mode->head); | |
554f1d78 | 754 | drm_mode_destroy(connector->dev, mode); |
f453ba04 | 755 | } |
f453ba04 | 756 | |
b5571e9d BB |
757 | /** |
758 | * drm_display_info_set_bus_formats - set the supported bus formats | |
759 | * @info: display info to store bus formats in | |
e37bfa1a BB |
760 | * @formats: array containing the supported bus formats |
761 | * @num_formats: the number of entries in the fmts array | |
b5571e9d BB |
762 | * |
763 | * Store the supported bus formats in display info structure. | |
764 | * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for | |
765 | * a full list of available formats. | |
766 | */ | |
767 | int drm_display_info_set_bus_formats(struct drm_display_info *info, | |
768 | const u32 *formats, | |
769 | unsigned int num_formats) | |
770 | { | |
771 | u32 *fmts = NULL; | |
772 | ||
773 | if (!formats && num_formats) | |
774 | return -EINVAL; | |
775 | ||
776 | if (formats && num_formats) { | |
777 | fmts = kmemdup(formats, sizeof(*formats) * num_formats, | |
778 | GFP_KERNEL); | |
944579c5 | 779 | if (!fmts) |
b5571e9d BB |
780 | return -ENOMEM; |
781 | } | |
782 | ||
783 | kfree(info->bus_formats); | |
784 | info->bus_formats = fmts; | |
785 | info->num_bus_formats = num_formats; | |
786 | ||
787 | return 0; | |
788 | } | |
789 | EXPORT_SYMBOL(drm_display_info_set_bus_formats); | |
790 | ||
eaf99c74 CW |
791 | /** |
792 | * drm_connector_get_cmdline_mode - reads the user's cmdline mode | |
793 | * @connector: connector to quwery | |
eaf99c74 CW |
794 | * |
795 | * The kernel supports per-connector configration of its consoles through | |
796 | * use of the video= parameter. This function parses that option and | |
797 | * extracts the user's specified mode (or enable/disable status) for a | |
798 | * particular connector. This is typically only used during the early fbdev | |
799 | * setup. | |
800 | */ | |
801 | static void drm_connector_get_cmdline_mode(struct drm_connector *connector) | |
802 | { | |
803 | struct drm_cmdline_mode *mode = &connector->cmdline_mode; | |
804 | char *option = NULL; | |
805 | ||
806 | if (fb_get_options(connector->name, &option)) | |
807 | return; | |
808 | ||
809 | if (!drm_mode_parse_command_line_for_connector(option, | |
810 | connector, | |
811 | mode)) | |
812 | return; | |
813 | ||
814 | if (mode->force) { | |
815 | const char *s; | |
816 | ||
817 | switch (mode->force) { | |
818 | case DRM_FORCE_OFF: | |
819 | s = "OFF"; | |
820 | break; | |
821 | case DRM_FORCE_ON_DIGITAL: | |
822 | s = "ON - dig"; | |
823 | break; | |
824 | default: | |
825 | case DRM_FORCE_ON: | |
826 | s = "ON"; | |
827 | break; | |
828 | } | |
829 | ||
830 | DRM_INFO("forcing %s connector %s\n", connector->name, s); | |
831 | connector->force = mode->force; | |
832 | } | |
833 | ||
834 | DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", | |
835 | connector->name, | |
836 | mode->xres, mode->yres, | |
837 | mode->refresh_specified ? mode->refresh : 60, | |
838 | mode->rb ? " reduced blanking" : "", | |
839 | mode->margins ? " with margins" : "", | |
840 | mode->interlace ? " interlaced" : ""); | |
841 | } | |
842 | ||
f453ba04 DA |
843 | /** |
844 | * drm_connector_init - Init a preallocated connector | |
845 | * @dev: DRM device | |
846 | * @connector: the connector to init | |
847 | * @funcs: callbacks for this connector | |
065a50ed | 848 | * @connector_type: user visible type of the connector |
f453ba04 | 849 | * |
f453ba04 DA |
850 | * Initialises a preallocated connector. Connectors should be |
851 | * subclassed as part of driver connector objects. | |
6bfc56aa | 852 | * |
c8e32cc1 | 853 | * Returns: |
6bfc56aa | 854 | * Zero on success, error code on failure. |
f453ba04 | 855 | */ |
6bfc56aa VS |
856 | int drm_connector_init(struct drm_device *dev, |
857 | struct drm_connector *connector, | |
858 | const struct drm_connector_funcs *funcs, | |
859 | int connector_type) | |
f453ba04 | 860 | { |
ae16c597 | 861 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa | 862 | int ret; |
b21e3afe IM |
863 | struct ida *connector_ida = |
864 | &drm_connector_enum_list[connector_type].ida; | |
6bfc56aa | 865 | |
84849903 | 866 | drm_modeset_lock_all(dev); |
f453ba04 | 867 | |
2ee39452 | 868 | ret = drm_mode_object_get_reg(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR, false); |
6bfc56aa | 869 | if (ret) |
2abdd313 | 870 | goto out_unlock; |
6bfc56aa | 871 | |
7e3bdf4a | 872 | connector->base.properties = &connector->properties; |
f453ba04 DA |
873 | connector->dev = dev; |
874 | connector->funcs = funcs; | |
f453ba04 DA |
875 | connector->connector_type = connector_type; |
876 | connector->connector_type_id = | |
b21e3afe IM |
877 | ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); |
878 | if (connector->connector_type_id < 0) { | |
879 | ret = connector->connector_type_id; | |
2abdd313 | 880 | goto out_put; |
b21e3afe | 881 | } |
2abdd313 JN |
882 | connector->name = |
883 | kasprintf(GFP_KERNEL, "%s-%d", | |
884 | drm_connector_enum_list[connector_type].name, | |
885 | connector->connector_type_id); | |
886 | if (!connector->name) { | |
887 | ret = -ENOMEM; | |
888 | goto out_put; | |
889 | } | |
890 | ||
f453ba04 DA |
891 | INIT_LIST_HEAD(&connector->probed_modes); |
892 | INIT_LIST_HEAD(&connector->modes); | |
893 | connector->edid_blob_ptr = NULL; | |
5e2cb2f6 | 894 | connector->status = connector_status_unknown; |
f453ba04 | 895 | |
eaf99c74 CW |
896 | drm_connector_get_cmdline_mode(connector); |
897 | ||
c7eb76f4 DV |
898 | /* We should add connectors at the end to avoid upsetting the connector |
899 | * index too much. */ | |
ae16c597 RC |
900 | list_add_tail(&connector->head, &config->connector_list); |
901 | config->num_connector++; | |
f453ba04 | 902 | |
a7331e5c | 903 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) |
58495563 | 904 | drm_object_attach_property(&connector->base, |
ae16c597 | 905 | config->edid_property, |
a7331e5c | 906 | 0); |
f453ba04 | 907 | |
58495563 | 908 | drm_object_attach_property(&connector->base, |
ae16c597 RC |
909 | config->dpms_property, 0); |
910 | ||
911 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { | |
912 | drm_object_attach_property(&connector->base, config->prop_crtc_id, 0); | |
913 | } | |
f453ba04 | 914 | |
30f65707 TW |
915 | connector->debugfs_entry = NULL; |
916 | ||
2abdd313 JN |
917 | out_put: |
918 | if (ret) | |
919 | drm_mode_object_put(dev, &connector->base); | |
920 | ||
921 | out_unlock: | |
84849903 | 922 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
923 | |
924 | return ret; | |
f453ba04 DA |
925 | } |
926 | EXPORT_SYMBOL(drm_connector_init); | |
927 | ||
928 | /** | |
929 | * drm_connector_cleanup - cleans up an initialised connector | |
930 | * @connector: connector to cleanup | |
931 | * | |
f453ba04 DA |
932 | * Cleans up the connector but doesn't free the object. |
933 | */ | |
934 | void drm_connector_cleanup(struct drm_connector *connector) | |
935 | { | |
936 | struct drm_device *dev = connector->dev; | |
937 | struct drm_display_mode *mode, *t; | |
938 | ||
40d9b043 DA |
939 | if (connector->tile_group) { |
940 | drm_mode_put_tile_group(dev, connector->tile_group); | |
941 | connector->tile_group = NULL; | |
942 | } | |
943 | ||
f453ba04 DA |
944 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) |
945 | drm_mode_remove(connector, mode); | |
946 | ||
947 | list_for_each_entry_safe(mode, t, &connector->modes, head) | |
948 | drm_mode_remove(connector, mode); | |
949 | ||
b21e3afe IM |
950 | ida_remove(&drm_connector_enum_list[connector->connector_type].ida, |
951 | connector->connector_type_id); | |
952 | ||
b5571e9d | 953 | kfree(connector->display_info.bus_formats); |
f453ba04 | 954 | drm_mode_object_put(dev, &connector->base); |
2abdd313 JN |
955 | kfree(connector->name); |
956 | connector->name = NULL; | |
f453ba04 | 957 | list_del(&connector->head); |
6380c509 | 958 | dev->mode_config.num_connector--; |
3009c037 TR |
959 | |
960 | WARN_ON(connector->state && !connector->funcs->atomic_destroy_state); | |
961 | if (connector->state && connector->funcs->atomic_destroy_state) | |
962 | connector->funcs->atomic_destroy_state(connector, | |
963 | connector->state); | |
a18c0af1 TR |
964 | |
965 | memset(connector, 0, sizeof(*connector)); | |
f453ba04 DA |
966 | } |
967 | EXPORT_SYMBOL(drm_connector_cleanup); | |
968 | ||
10f637bf DV |
969 | /** |
970 | * drm_connector_index - find the index of a registered connector | |
971 | * @connector: connector to find index for | |
972 | * | |
973 | * Given a registered connector, return the index of that connector within a DRM | |
974 | * device's list of connectors. | |
975 | */ | |
976 | unsigned int drm_connector_index(struct drm_connector *connector) | |
977 | { | |
978 | unsigned int index = 0; | |
979 | struct drm_connector *tmp; | |
c7eb76f4 DV |
980 | struct drm_mode_config *config = &connector->dev->mode_config; |
981 | ||
982 | WARN_ON(!drm_modeset_is_locked(&config->connection_mutex)); | |
10f637bf DV |
983 | |
984 | list_for_each_entry(tmp, &connector->dev->mode_config.connector_list, head) { | |
985 | if (tmp == connector) | |
986 | return index; | |
987 | ||
988 | index++; | |
989 | } | |
990 | ||
991 | BUG(); | |
992 | } | |
993 | EXPORT_SYMBOL(drm_connector_index); | |
994 | ||
34ea3d38 TW |
995 | /** |
996 | * drm_connector_register - register a connector | |
997 | * @connector: the connector to register | |
998 | * | |
999 | * Register userspace interfaces for a connector | |
1000 | * | |
1001 | * Returns: | |
1002 | * Zero on success, error code on failure. | |
1003 | */ | |
1004 | int drm_connector_register(struct drm_connector *connector) | |
1005 | { | |
30f65707 TW |
1006 | int ret; |
1007 | ||
2ee39452 DA |
1008 | drm_mode_object_register(connector->dev, &connector->base); |
1009 | ||
30f65707 TW |
1010 | ret = drm_sysfs_connector_add(connector); |
1011 | if (ret) | |
1012 | return ret; | |
1013 | ||
1014 | ret = drm_debugfs_connector_add(connector); | |
1015 | if (ret) { | |
1016 | drm_sysfs_connector_remove(connector); | |
1017 | return ret; | |
1018 | } | |
1019 | ||
1020 | return 0; | |
34ea3d38 TW |
1021 | } |
1022 | EXPORT_SYMBOL(drm_connector_register); | |
1023 | ||
1024 | /** | |
1025 | * drm_connector_unregister - unregister a connector | |
1026 | * @connector: the connector to unregister | |
1027 | * | |
1028 | * Unregister userspace interfaces for a connector | |
1029 | */ | |
1030 | void drm_connector_unregister(struct drm_connector *connector) | |
1031 | { | |
1032 | drm_sysfs_connector_remove(connector); | |
30f65707 | 1033 | drm_debugfs_connector_remove(connector); |
34ea3d38 TW |
1034 | } |
1035 | EXPORT_SYMBOL(drm_connector_unregister); | |
1036 | ||
1037 | ||
c8e32cc1 DV |
1038 | /** |
1039 | * drm_connector_unplug_all - unregister connector userspace interfaces | |
1040 | * @dev: drm device | |
1041 | * | |
1042 | * This function unregisters all connector userspace interfaces in sysfs. Should | |
1043 | * be call when the device is disconnected, e.g. from an usb driver's | |
1044 | * ->disconnect callback. | |
1045 | */ | |
cbc7e221 DA |
1046 | void drm_connector_unplug_all(struct drm_device *dev) |
1047 | { | |
1048 | struct drm_connector *connector; | |
1049 | ||
1050 | /* taking the mode config mutex ends up in a clash with sysfs */ | |
1051 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
34ea3d38 | 1052 | drm_connector_unregister(connector); |
cbc7e221 DA |
1053 | |
1054 | } | |
1055 | EXPORT_SYMBOL(drm_connector_unplug_all); | |
1056 | ||
c8e32cc1 DV |
1057 | /** |
1058 | * drm_encoder_init - Init a preallocated encoder | |
1059 | * @dev: drm device | |
1060 | * @encoder: the encoder to init | |
1061 | * @funcs: callbacks for this encoder | |
1062 | * @encoder_type: user visible type of the encoder | |
1063 | * | |
1064 | * Initialises a preallocated encoder. Encoder should be | |
1065 | * subclassed as part of driver encoder objects. | |
1066 | * | |
1067 | * Returns: | |
1068 | * Zero on success, error code on failure. | |
1069 | */ | |
6bfc56aa | 1070 | int drm_encoder_init(struct drm_device *dev, |
cbc7e221 DA |
1071 | struct drm_encoder *encoder, |
1072 | const struct drm_encoder_funcs *funcs, | |
1073 | int encoder_type) | |
f453ba04 | 1074 | { |
6bfc56aa VS |
1075 | int ret; |
1076 | ||
84849903 | 1077 | drm_modeset_lock_all(dev); |
f453ba04 | 1078 | |
6bfc56aa VS |
1079 | ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
1080 | if (ret) | |
e5748946 | 1081 | goto out_unlock; |
f453ba04 | 1082 | |
6bfc56aa | 1083 | encoder->dev = dev; |
f453ba04 DA |
1084 | encoder->encoder_type = encoder_type; |
1085 | encoder->funcs = funcs; | |
e5748946 JN |
1086 | encoder->name = kasprintf(GFP_KERNEL, "%s-%d", |
1087 | drm_encoder_enum_list[encoder_type].name, | |
1088 | encoder->base.id); | |
1089 | if (!encoder->name) { | |
1090 | ret = -ENOMEM; | |
1091 | goto out_put; | |
1092 | } | |
f453ba04 DA |
1093 | |
1094 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); | |
1095 | dev->mode_config.num_encoder++; | |
1096 | ||
e5748946 JN |
1097 | out_put: |
1098 | if (ret) | |
1099 | drm_mode_object_put(dev, &encoder->base); | |
1100 | ||
1101 | out_unlock: | |
84849903 | 1102 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
1103 | |
1104 | return ret; | |
f453ba04 DA |
1105 | } |
1106 | EXPORT_SYMBOL(drm_encoder_init); | |
1107 | ||
c8e32cc1 DV |
1108 | /** |
1109 | * drm_encoder_cleanup - cleans up an initialised encoder | |
1110 | * @encoder: encoder to cleanup | |
1111 | * | |
1112 | * Cleans up the encoder but doesn't free the object. | |
1113 | */ | |
f453ba04 DA |
1114 | void drm_encoder_cleanup(struct drm_encoder *encoder) |
1115 | { | |
1116 | struct drm_device *dev = encoder->dev; | |
4dfd909f | 1117 | |
84849903 | 1118 | drm_modeset_lock_all(dev); |
f453ba04 | 1119 | drm_mode_object_put(dev, &encoder->base); |
e5748946 | 1120 | kfree(encoder->name); |
f453ba04 | 1121 | list_del(&encoder->head); |
6380c509 | 1122 | dev->mode_config.num_encoder--; |
84849903 | 1123 | drm_modeset_unlock_all(dev); |
a18c0af1 TR |
1124 | |
1125 | memset(encoder, 0, sizeof(*encoder)); | |
f453ba04 DA |
1126 | } |
1127 | EXPORT_SYMBOL(drm_encoder_cleanup); | |
1128 | ||
35f2c3ae | 1129 | /** |
dc415ff9 | 1130 | * drm_universal_plane_init - Initialize a new universal plane object |
35f2c3ae VS |
1131 | * @dev: DRM device |
1132 | * @plane: plane object to init | |
1133 | * @possible_crtcs: bitmask of possible CRTCs | |
1134 | * @funcs: callbacks for the new plane | |
1135 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1136 | * @format_count: number of elements in @formats | |
dc415ff9 | 1137 | * @type: type of plane (overlay, primary, cursor) |
35f2c3ae | 1138 | * |
dc415ff9 | 1139 | * Initializes a plane object of type @type. |
35f2c3ae | 1140 | * |
c8e32cc1 | 1141 | * Returns: |
35f2c3ae VS |
1142 | * Zero on success, error code on failure. |
1143 | */ | |
dc415ff9 MR |
1144 | int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, |
1145 | unsigned long possible_crtcs, | |
1146 | const struct drm_plane_funcs *funcs, | |
1147 | const uint32_t *formats, uint32_t format_count, | |
1148 | enum drm_plane_type type) | |
8cf5c917 | 1149 | { |
6b4959f4 | 1150 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
1151 | int ret; |
1152 | ||
6bfc56aa VS |
1153 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
1154 | if (ret) | |
baf698b0 | 1155 | return ret; |
6bfc56aa | 1156 | |
4d02e2de DV |
1157 | drm_modeset_lock_init(&plane->mutex); |
1158 | ||
4d93914a | 1159 | plane->base.properties = &plane->properties; |
8cf5c917 | 1160 | plane->dev = dev; |
8cf5c917 | 1161 | plane->funcs = funcs; |
2f6c5389 TR |
1162 | plane->format_types = kmalloc_array(format_count, sizeof(uint32_t), |
1163 | GFP_KERNEL); | |
8cf5c917 JB |
1164 | if (!plane->format_types) { |
1165 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); | |
1166 | drm_mode_object_put(dev, &plane->base); | |
baf698b0 | 1167 | return -ENOMEM; |
8cf5c917 JB |
1168 | } |
1169 | ||
308e5bcb | 1170 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
8cf5c917 JB |
1171 | plane->format_count = format_count; |
1172 | plane->possible_crtcs = possible_crtcs; | |
dc415ff9 | 1173 | plane->type = type; |
8cf5c917 | 1174 | |
6b4959f4 RC |
1175 | list_add_tail(&plane->head, &config->plane_list); |
1176 | config->num_total_plane++; | |
dc415ff9 | 1177 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) |
6b4959f4 | 1178 | config->num_overlay_plane++; |
8cf5c917 | 1179 | |
9922ab5a | 1180 | drm_object_attach_property(&plane->base, |
6b4959f4 | 1181 | config->plane_type_property, |
9922ab5a RC |
1182 | plane->type); |
1183 | ||
6b4959f4 RC |
1184 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
1185 | drm_object_attach_property(&plane->base, config->prop_fb_id, 0); | |
1186 | drm_object_attach_property(&plane->base, config->prop_crtc_id, 0); | |
1187 | drm_object_attach_property(&plane->base, config->prop_crtc_x, 0); | |
1188 | drm_object_attach_property(&plane->base, config->prop_crtc_y, 0); | |
1189 | drm_object_attach_property(&plane->base, config->prop_crtc_w, 0); | |
1190 | drm_object_attach_property(&plane->base, config->prop_crtc_h, 0); | |
1191 | drm_object_attach_property(&plane->base, config->prop_src_x, 0); | |
1192 | drm_object_attach_property(&plane->base, config->prop_src_y, 0); | |
1193 | drm_object_attach_property(&plane->base, config->prop_src_w, 0); | |
1194 | drm_object_attach_property(&plane->base, config->prop_src_h, 0); | |
1195 | } | |
1196 | ||
baf698b0 | 1197 | return 0; |
8cf5c917 | 1198 | } |
dc415ff9 MR |
1199 | EXPORT_SYMBOL(drm_universal_plane_init); |
1200 | ||
1201 | /** | |
1202 | * drm_plane_init - Initialize a legacy plane | |
1203 | * @dev: DRM device | |
1204 | * @plane: plane object to init | |
1205 | * @possible_crtcs: bitmask of possible CRTCs | |
1206 | * @funcs: callbacks for the new plane | |
1207 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1208 | * @format_count: number of elements in @formats | |
1209 | * @is_primary: plane type (primary vs overlay) | |
1210 | * | |
1211 | * Legacy API to initialize a DRM plane. | |
1212 | * | |
1213 | * New drivers should call drm_universal_plane_init() instead. | |
1214 | * | |
1215 | * Returns: | |
1216 | * Zero on success, error code on failure. | |
1217 | */ | |
1218 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, | |
1219 | unsigned long possible_crtcs, | |
1220 | const struct drm_plane_funcs *funcs, | |
1221 | const uint32_t *formats, uint32_t format_count, | |
1222 | bool is_primary) | |
1223 | { | |
1224 | enum drm_plane_type type; | |
1225 | ||
1226 | type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; | |
1227 | return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, | |
1228 | formats, format_count, type); | |
1229 | } | |
8cf5c917 JB |
1230 | EXPORT_SYMBOL(drm_plane_init); |
1231 | ||
35f2c3ae VS |
1232 | /** |
1233 | * drm_plane_cleanup - Clean up the core plane usage | |
1234 | * @plane: plane to cleanup | |
1235 | * | |
1236 | * This function cleans up @plane and removes it from the DRM mode setting | |
1237 | * core. Note that the function does *not* free the plane structure itself, | |
1238 | * this is the responsibility of the caller. | |
1239 | */ | |
8cf5c917 JB |
1240 | void drm_plane_cleanup(struct drm_plane *plane) |
1241 | { | |
1242 | struct drm_device *dev = plane->dev; | |
1243 | ||
84849903 | 1244 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1245 | kfree(plane->format_types); |
1246 | drm_mode_object_put(dev, &plane->base); | |
dc415ff9 MR |
1247 | |
1248 | BUG_ON(list_empty(&plane->head)); | |
1249 | ||
1250 | list_del(&plane->head); | |
1251 | dev->mode_config.num_total_plane--; | |
1252 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) | |
1253 | dev->mode_config.num_overlay_plane--; | |
84849903 | 1254 | drm_modeset_unlock_all(dev); |
3009c037 TR |
1255 | |
1256 | WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); | |
1257 | if (plane->state && plane->funcs->atomic_destroy_state) | |
1258 | plane->funcs->atomic_destroy_state(plane, plane->state); | |
a18c0af1 TR |
1259 | |
1260 | memset(plane, 0, sizeof(*plane)); | |
8cf5c917 JB |
1261 | } |
1262 | EXPORT_SYMBOL(drm_plane_cleanup); | |
1263 | ||
10f637bf DV |
1264 | /** |
1265 | * drm_plane_index - find the index of a registered plane | |
1266 | * @plane: plane to find index for | |
1267 | * | |
1268 | * Given a registered plane, return the index of that CRTC within a DRM | |
1269 | * device's list of planes. | |
1270 | */ | |
1271 | unsigned int drm_plane_index(struct drm_plane *plane) | |
1272 | { | |
1273 | unsigned int index = 0; | |
1274 | struct drm_plane *tmp; | |
1275 | ||
1276 | list_for_each_entry(tmp, &plane->dev->mode_config.plane_list, head) { | |
1277 | if (tmp == plane) | |
1278 | return index; | |
1279 | ||
1280 | index++; | |
1281 | } | |
1282 | ||
1283 | BUG(); | |
1284 | } | |
1285 | EXPORT_SYMBOL(drm_plane_index); | |
1286 | ||
35f2c3ae VS |
1287 | /** |
1288 | * drm_plane_force_disable - Forcibly disable a plane | |
1289 | * @plane: plane to disable | |
1290 | * | |
1291 | * Forces the plane to be disabled. | |
1292 | * | |
1293 | * Used when the plane's current framebuffer is destroyed, | |
1294 | * and when restoring fbdev mode. | |
1295 | */ | |
9125e618 VS |
1296 | void drm_plane_force_disable(struct drm_plane *plane) |
1297 | { | |
1298 | int ret; | |
1299 | ||
3d30a59b | 1300 | if (!plane->fb) |
9125e618 VS |
1301 | return; |
1302 | ||
3d30a59b | 1303 | plane->old_fb = plane->fb; |
9125e618 | 1304 | ret = plane->funcs->disable_plane(plane); |
731cce48 | 1305 | if (ret) { |
9125e618 | 1306 | DRM_ERROR("failed to disable plane with busy fb\n"); |
3d30a59b | 1307 | plane->old_fb = NULL; |
731cce48 DV |
1308 | return; |
1309 | } | |
9125e618 | 1310 | /* disconnect the plane from the fb and crtc: */ |
220dd2bc | 1311 | drm_framebuffer_unreference(plane->old_fb); |
3d30a59b | 1312 | plane->old_fb = NULL; |
9125e618 VS |
1313 | plane->fb = NULL; |
1314 | plane->crtc = NULL; | |
1315 | } | |
1316 | EXPORT_SYMBOL(drm_plane_force_disable); | |
1317 | ||
6b4959f4 | 1318 | static int drm_mode_create_standard_properties(struct drm_device *dev) |
f453ba04 | 1319 | { |
356af0e1 | 1320 | struct drm_property *prop; |
f453ba04 DA |
1321 | |
1322 | /* | |
1323 | * Standard properties (apply to all connectors) | |
1324 | */ | |
356af0e1 | 1325 | prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | |
f453ba04 DA |
1326 | DRM_MODE_PROP_IMMUTABLE, |
1327 | "EDID", 0); | |
356af0e1 RC |
1328 | if (!prop) |
1329 | return -ENOMEM; | |
1330 | dev->mode_config.edid_property = prop; | |
f453ba04 | 1331 | |
356af0e1 | 1332 | prop = drm_property_create_enum(dev, 0, |
4a67d391 SH |
1333 | "DPMS", drm_dpms_enum_list, |
1334 | ARRAY_SIZE(drm_dpms_enum_list)); | |
356af0e1 RC |
1335 | if (!prop) |
1336 | return -ENOMEM; | |
1337 | dev->mode_config.dpms_property = prop; | |
6f134d7b | 1338 | |
356af0e1 RC |
1339 | prop = drm_property_create(dev, |
1340 | DRM_MODE_PROP_BLOB | | |
1341 | DRM_MODE_PROP_IMMUTABLE, | |
1342 | "PATH", 0); | |
1343 | if (!prop) | |
1344 | return -ENOMEM; | |
1345 | dev->mode_config.path_property = prop; | |
f453ba04 | 1346 | |
356af0e1 RC |
1347 | prop = drm_property_create(dev, |
1348 | DRM_MODE_PROP_BLOB | | |
1349 | DRM_MODE_PROP_IMMUTABLE, | |
1350 | "TILE", 0); | |
1351 | if (!prop) | |
1352 | return -ENOMEM; | |
1353 | dev->mode_config.tile_property = prop; | |
9922ab5a | 1354 | |
6b4959f4 | 1355 | prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
9922ab5a RC |
1356 | "type", drm_plane_type_enum_list, |
1357 | ARRAY_SIZE(drm_plane_type_enum_list)); | |
6b4959f4 RC |
1358 | if (!prop) |
1359 | return -ENOMEM; | |
1360 | dev->mode_config.plane_type_property = prop; | |
1361 | ||
1362 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1363 | "SRC_X", 0, UINT_MAX); | |
1364 | if (!prop) | |
1365 | return -ENOMEM; | |
1366 | dev->mode_config.prop_src_x = prop; | |
1367 | ||
1368 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1369 | "SRC_Y", 0, UINT_MAX); | |
1370 | if (!prop) | |
1371 | return -ENOMEM; | |
1372 | dev->mode_config.prop_src_y = prop; | |
1373 | ||
1374 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1375 | "SRC_W", 0, UINT_MAX); | |
1376 | if (!prop) | |
1377 | return -ENOMEM; | |
1378 | dev->mode_config.prop_src_w = prop; | |
1379 | ||
1380 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1381 | "SRC_H", 0, UINT_MAX); | |
1382 | if (!prop) | |
1383 | return -ENOMEM; | |
1384 | dev->mode_config.prop_src_h = prop; | |
1385 | ||
1386 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
1387 | "CRTC_X", INT_MIN, INT_MAX); | |
1388 | if (!prop) | |
1389 | return -ENOMEM; | |
1390 | dev->mode_config.prop_crtc_x = prop; | |
1391 | ||
1392 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
1393 | "CRTC_Y", INT_MIN, INT_MAX); | |
1394 | if (!prop) | |
1395 | return -ENOMEM; | |
1396 | dev->mode_config.prop_crtc_y = prop; | |
1397 | ||
1398 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1399 | "CRTC_W", 0, INT_MAX); | |
1400 | if (!prop) | |
1401 | return -ENOMEM; | |
1402 | dev->mode_config.prop_crtc_w = prop; | |
1403 | ||
1404 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1405 | "CRTC_H", 0, INT_MAX); | |
1406 | if (!prop) | |
1407 | return -ENOMEM; | |
1408 | dev->mode_config.prop_crtc_h = prop; | |
1409 | ||
1410 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, | |
1411 | "FB_ID", DRM_MODE_OBJECT_FB); | |
1412 | if (!prop) | |
1413 | return -ENOMEM; | |
1414 | dev->mode_config.prop_fb_id = prop; | |
1415 | ||
1416 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, | |
1417 | "CRTC_ID", DRM_MODE_OBJECT_CRTC); | |
1418 | if (!prop) | |
1419 | return -ENOMEM; | |
1420 | dev->mode_config.prop_crtc_id = prop; | |
9922ab5a | 1421 | |
eab3bbef DV |
1422 | prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, |
1423 | "ACTIVE"); | |
1424 | if (!prop) | |
1425 | return -ENOMEM; | |
1426 | dev->mode_config.prop_active = prop; | |
1427 | ||
9922ab5a RC |
1428 | return 0; |
1429 | } | |
1430 | ||
f453ba04 DA |
1431 | /** |
1432 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties | |
1433 | * @dev: DRM device | |
1434 | * | |
1435 | * Called by a driver the first time a DVI-I connector is made. | |
1436 | */ | |
1437 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) | |
1438 | { | |
1439 | struct drm_property *dvi_i_selector; | |
1440 | struct drm_property *dvi_i_subconnector; | |
f453ba04 DA |
1441 | |
1442 | if (dev->mode_config.dvi_i_select_subconnector_property) | |
1443 | return 0; | |
1444 | ||
1445 | dvi_i_selector = | |
4a67d391 | 1446 | drm_property_create_enum(dev, 0, |
f453ba04 | 1447 | "select subconnector", |
4a67d391 | 1448 | drm_dvi_i_select_enum_list, |
f453ba04 | 1449 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
f453ba04 DA |
1450 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
1451 | ||
4a67d391 | 1452 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
f453ba04 | 1453 | "subconnector", |
4a67d391 | 1454 | drm_dvi_i_subconnector_enum_list, |
f453ba04 | 1455 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
f453ba04 DA |
1456 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
1457 | ||
1458 | return 0; | |
1459 | } | |
1460 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); | |
1461 | ||
1462 | /** | |
1463 | * drm_create_tv_properties - create TV specific connector properties | |
1464 | * @dev: DRM device | |
1465 | * @num_modes: number of different TV formats (modes) supported | |
1466 | * @modes: array of pointers to strings containing name of each format | |
1467 | * | |
1468 | * Called by a driver's TV initialization routine, this function creates | |
1469 | * the TV specific connector properties for a given device. Caller is | |
1470 | * responsible for allocating a list of format names and passing them to | |
1471 | * this routine. | |
1472 | */ | |
2f763312 TR |
1473 | int drm_mode_create_tv_properties(struct drm_device *dev, |
1474 | unsigned int num_modes, | |
f453ba04 DA |
1475 | char *modes[]) |
1476 | { | |
1477 | struct drm_property *tv_selector; | |
1478 | struct drm_property *tv_subconnector; | |
2f763312 | 1479 | unsigned int i; |
f453ba04 DA |
1480 | |
1481 | if (dev->mode_config.tv_select_subconnector_property) | |
1482 | return 0; | |
1483 | ||
1484 | /* | |
1485 | * Basic connector properties | |
1486 | */ | |
4a67d391 | 1487 | tv_selector = drm_property_create_enum(dev, 0, |
f453ba04 | 1488 | "select subconnector", |
4a67d391 | 1489 | drm_tv_select_enum_list, |
f453ba04 | 1490 | ARRAY_SIZE(drm_tv_select_enum_list)); |
f453ba04 DA |
1491 | dev->mode_config.tv_select_subconnector_property = tv_selector; |
1492 | ||
1493 | tv_subconnector = | |
4a67d391 SH |
1494 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1495 | "subconnector", | |
1496 | drm_tv_subconnector_enum_list, | |
f453ba04 | 1497 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
f453ba04 DA |
1498 | dev->mode_config.tv_subconnector_property = tv_subconnector; |
1499 | ||
1500 | /* | |
1501 | * Other, TV specific properties: margins & TV modes. | |
1502 | */ | |
1503 | dev->mode_config.tv_left_margin_property = | |
d9bc3c02 | 1504 | drm_property_create_range(dev, 0, "left margin", 0, 100); |
f453ba04 DA |
1505 | |
1506 | dev->mode_config.tv_right_margin_property = | |
d9bc3c02 | 1507 | drm_property_create_range(dev, 0, "right margin", 0, 100); |
f453ba04 DA |
1508 | |
1509 | dev->mode_config.tv_top_margin_property = | |
d9bc3c02 | 1510 | drm_property_create_range(dev, 0, "top margin", 0, 100); |
f453ba04 DA |
1511 | |
1512 | dev->mode_config.tv_bottom_margin_property = | |
d9bc3c02 | 1513 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); |
f453ba04 DA |
1514 | |
1515 | dev->mode_config.tv_mode_property = | |
1516 | drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
1517 | "mode", num_modes); | |
1518 | for (i = 0; i < num_modes; i++) | |
1519 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, | |
1520 | i, modes[i]); | |
1521 | ||
b6b7902e | 1522 | dev->mode_config.tv_brightness_property = |
d9bc3c02 | 1523 | drm_property_create_range(dev, 0, "brightness", 0, 100); |
b6b7902e FJ |
1524 | |
1525 | dev->mode_config.tv_contrast_property = | |
d9bc3c02 | 1526 | drm_property_create_range(dev, 0, "contrast", 0, 100); |
b6b7902e FJ |
1527 | |
1528 | dev->mode_config.tv_flicker_reduction_property = | |
d9bc3c02 | 1529 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); |
b6b7902e | 1530 | |
a75f0236 | 1531 | dev->mode_config.tv_overscan_property = |
d9bc3c02 | 1532 | drm_property_create_range(dev, 0, "overscan", 0, 100); |
a75f0236 FJ |
1533 | |
1534 | dev->mode_config.tv_saturation_property = | |
d9bc3c02 | 1535 | drm_property_create_range(dev, 0, "saturation", 0, 100); |
a75f0236 FJ |
1536 | |
1537 | dev->mode_config.tv_hue_property = | |
d9bc3c02 | 1538 | drm_property_create_range(dev, 0, "hue", 0, 100); |
a75f0236 | 1539 | |
f453ba04 DA |
1540 | return 0; |
1541 | } | |
1542 | EXPORT_SYMBOL(drm_mode_create_tv_properties); | |
1543 | ||
1544 | /** | |
1545 | * drm_mode_create_scaling_mode_property - create scaling mode property | |
1546 | * @dev: DRM device | |
1547 | * | |
1548 | * Called by a driver the first time it's needed, must be attached to desired | |
1549 | * connectors. | |
1550 | */ | |
1551 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) | |
1552 | { | |
1553 | struct drm_property *scaling_mode; | |
f453ba04 DA |
1554 | |
1555 | if (dev->mode_config.scaling_mode_property) | |
1556 | return 0; | |
1557 | ||
1558 | scaling_mode = | |
4a67d391 SH |
1559 | drm_property_create_enum(dev, 0, "scaling mode", |
1560 | drm_scaling_mode_enum_list, | |
f453ba04 | 1561 | ARRAY_SIZE(drm_scaling_mode_enum_list)); |
f453ba04 DA |
1562 | |
1563 | dev->mode_config.scaling_mode_property = scaling_mode; | |
1564 | ||
1565 | return 0; | |
1566 | } | |
1567 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); | |
1568 | ||
ff587e45 VK |
1569 | /** |
1570 | * drm_mode_create_aspect_ratio_property - create aspect ratio property | |
1571 | * @dev: DRM device | |
1572 | * | |
1573 | * Called by a driver the first time it's needed, must be attached to desired | |
1574 | * connectors. | |
1575 | * | |
1576 | * Returns: | |
1a498633 | 1577 | * Zero on success, negative errno on failure. |
ff587e45 VK |
1578 | */ |
1579 | int drm_mode_create_aspect_ratio_property(struct drm_device *dev) | |
1580 | { | |
1581 | if (dev->mode_config.aspect_ratio_property) | |
1582 | return 0; | |
1583 | ||
1584 | dev->mode_config.aspect_ratio_property = | |
1585 | drm_property_create_enum(dev, 0, "aspect ratio", | |
1586 | drm_aspect_ratio_enum_list, | |
1587 | ARRAY_SIZE(drm_aspect_ratio_enum_list)); | |
1588 | ||
1589 | if (dev->mode_config.aspect_ratio_property == NULL) | |
1590 | return -ENOMEM; | |
1591 | ||
1592 | return 0; | |
1593 | } | |
1594 | EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); | |
1595 | ||
884840aa JB |
1596 | /** |
1597 | * drm_mode_create_dirty_property - create dirty property | |
1598 | * @dev: DRM device | |
1599 | * | |
1600 | * Called by a driver the first time it's needed, must be attached to desired | |
1601 | * connectors. | |
1602 | */ | |
1603 | int drm_mode_create_dirty_info_property(struct drm_device *dev) | |
1604 | { | |
1605 | struct drm_property *dirty_info; | |
884840aa JB |
1606 | |
1607 | if (dev->mode_config.dirty_info_property) | |
1608 | return 0; | |
1609 | ||
1610 | dirty_info = | |
4a67d391 | 1611 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
884840aa | 1612 | "dirty", |
4a67d391 | 1613 | drm_dirty_info_enum_list, |
884840aa | 1614 | ARRAY_SIZE(drm_dirty_info_enum_list)); |
884840aa JB |
1615 | dev->mode_config.dirty_info_property = dirty_info; |
1616 | ||
1617 | return 0; | |
1618 | } | |
1619 | EXPORT_SYMBOL(drm_mode_create_dirty_info_property); | |
1620 | ||
5bb2bbf5 DA |
1621 | /** |
1622 | * drm_mode_create_suggested_offset_properties - create suggests offset properties | |
1623 | * @dev: DRM device | |
1624 | * | |
1625 | * Create the the suggested x/y offset property for connectors. | |
1626 | */ | |
1627 | int drm_mode_create_suggested_offset_properties(struct drm_device *dev) | |
1628 | { | |
1629 | if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property) | |
1630 | return 0; | |
1631 | ||
1632 | dev->mode_config.suggested_x_property = | |
1633 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff); | |
1634 | ||
1635 | dev->mode_config.suggested_y_property = | |
1636 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff); | |
1637 | ||
1638 | if (dev->mode_config.suggested_x_property == NULL || | |
1639 | dev->mode_config.suggested_y_property == NULL) | |
1640 | return -ENOMEM; | |
1641 | return 0; | |
1642 | } | |
1643 | EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties); | |
1644 | ||
ea9cbb06 | 1645 | static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) |
f453ba04 DA |
1646 | { |
1647 | uint32_t total_objects = 0; | |
1648 | ||
1649 | total_objects += dev->mode_config.num_crtc; | |
1650 | total_objects += dev->mode_config.num_connector; | |
1651 | total_objects += dev->mode_config.num_encoder; | |
1652 | ||
bd3f0ff9 | 1653 | group->id_list = kcalloc(total_objects, sizeof(uint32_t), GFP_KERNEL); |
f453ba04 DA |
1654 | if (!group->id_list) |
1655 | return -ENOMEM; | |
1656 | ||
1657 | group->num_crtcs = 0; | |
1658 | group->num_connectors = 0; | |
1659 | group->num_encoders = 0; | |
1660 | return 0; | |
1661 | } | |
1662 | ||
ad222799 DA |
1663 | void drm_mode_group_destroy(struct drm_mode_group *group) |
1664 | { | |
1665 | kfree(group->id_list); | |
1666 | group->id_list = NULL; | |
1667 | } | |
1668 | ||
c8e32cc1 DV |
1669 | /* |
1670 | * NOTE: Driver's shouldn't ever call drm_mode_group_init_legacy_group - it is | |
1671 | * the drm core's responsibility to set up mode control groups. | |
1672 | */ | |
f453ba04 DA |
1673 | int drm_mode_group_init_legacy_group(struct drm_device *dev, |
1674 | struct drm_mode_group *group) | |
1675 | { | |
1676 | struct drm_crtc *crtc; | |
1677 | struct drm_encoder *encoder; | |
1678 | struct drm_connector *connector; | |
1679 | int ret; | |
1680 | ||
0cc0b223 TR |
1681 | ret = drm_mode_group_init(dev, group); |
1682 | if (ret) | |
f453ba04 DA |
1683 | return ret; |
1684 | ||
1685 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
1686 | group->id_list[group->num_crtcs++] = crtc->base.id; | |
1687 | ||
1688 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
1689 | group->id_list[group->num_crtcs + group->num_encoders++] = | |
1690 | encoder->base.id; | |
1691 | ||
1692 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
1693 | group->id_list[group->num_crtcs + group->num_encoders + | |
1694 | group->num_connectors++] = connector->base.id; | |
1695 | ||
1696 | return 0; | |
1697 | } | |
9c1dfc55 | 1698 | EXPORT_SYMBOL(drm_mode_group_init_legacy_group); |
f453ba04 | 1699 | |
2390cd11 DA |
1700 | void drm_reinit_primary_mode_group(struct drm_device *dev) |
1701 | { | |
1702 | drm_modeset_lock_all(dev); | |
1703 | drm_mode_group_destroy(&dev->primary->mode_group); | |
1704 | drm_mode_group_init_legacy_group(dev, &dev->primary->mode_group); | |
1705 | drm_modeset_unlock_all(dev); | |
1706 | } | |
1707 | EXPORT_SYMBOL(drm_reinit_primary_mode_group); | |
1708 | ||
f453ba04 DA |
1709 | /** |
1710 | * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo | |
1711 | * @out: drm_mode_modeinfo struct to return to the user | |
1712 | * @in: drm_display_mode to use | |
1713 | * | |
f453ba04 DA |
1714 | * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to |
1715 | * the user. | |
1716 | */ | |
93bbf6db VS |
1717 | static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, |
1718 | const struct drm_display_mode *in) | |
f453ba04 | 1719 | { |
e36fae38 VS |
1720 | WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX || |
1721 | in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX || | |
1722 | in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX || | |
1723 | in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX || | |
1724 | in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX, | |
1725 | "timing values too large for mode info\n"); | |
1726 | ||
f453ba04 DA |
1727 | out->clock = in->clock; |
1728 | out->hdisplay = in->hdisplay; | |
1729 | out->hsync_start = in->hsync_start; | |
1730 | out->hsync_end = in->hsync_end; | |
1731 | out->htotal = in->htotal; | |
1732 | out->hskew = in->hskew; | |
1733 | out->vdisplay = in->vdisplay; | |
1734 | out->vsync_start = in->vsync_start; | |
1735 | out->vsync_end = in->vsync_end; | |
1736 | out->vtotal = in->vtotal; | |
1737 | out->vscan = in->vscan; | |
1738 | out->vrefresh = in->vrefresh; | |
1739 | out->flags = in->flags; | |
1740 | out->type = in->type; | |
1741 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1742 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
1743 | } | |
1744 | ||
1745 | /** | |
74afee7d | 1746 | * drm_crtc_convert_umode - convert a modeinfo into a drm_display_mode |
f453ba04 DA |
1747 | * @out: drm_display_mode to return to the user |
1748 | * @in: drm_mode_modeinfo to use | |
1749 | * | |
f453ba04 DA |
1750 | * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to |
1751 | * the caller. | |
90367bf6 | 1752 | * |
c8e32cc1 | 1753 | * Returns: |
1a498633 | 1754 | * Zero on success, negative errno on failure. |
f453ba04 | 1755 | */ |
93bbf6db VS |
1756 | static int drm_crtc_convert_umode(struct drm_display_mode *out, |
1757 | const struct drm_mode_modeinfo *in) | |
f453ba04 | 1758 | { |
90367bf6 VS |
1759 | if (in->clock > INT_MAX || in->vrefresh > INT_MAX) |
1760 | return -ERANGE; | |
1761 | ||
5848ad40 DL |
1762 | if ((in->flags & DRM_MODE_FLAG_3D_MASK) > DRM_MODE_FLAG_3D_MAX) |
1763 | return -EINVAL; | |
1764 | ||
f453ba04 DA |
1765 | out->clock = in->clock; |
1766 | out->hdisplay = in->hdisplay; | |
1767 | out->hsync_start = in->hsync_start; | |
1768 | out->hsync_end = in->hsync_end; | |
1769 | out->htotal = in->htotal; | |
1770 | out->hskew = in->hskew; | |
1771 | out->vdisplay = in->vdisplay; | |
1772 | out->vsync_start = in->vsync_start; | |
1773 | out->vsync_end = in->vsync_end; | |
1774 | out->vtotal = in->vtotal; | |
1775 | out->vscan = in->vscan; | |
1776 | out->vrefresh = in->vrefresh; | |
1777 | out->flags = in->flags; | |
1778 | out->type = in->type; | |
1779 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1780 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
90367bf6 VS |
1781 | |
1782 | return 0; | |
f453ba04 DA |
1783 | } |
1784 | ||
1785 | /** | |
1786 | * drm_mode_getresources - get graphics configuration | |
065a50ed DV |
1787 | * @dev: drm device for the ioctl |
1788 | * @data: data pointer for the ioctl | |
1789 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1790 | * |
f453ba04 DA |
1791 | * Construct a set of configuration description structures and return |
1792 | * them to the user, including CRTC, connector and framebuffer configuration. | |
1793 | * | |
1794 | * Called by the user via ioctl. | |
1795 | * | |
c8e32cc1 | 1796 | * Returns: |
1a498633 | 1797 | * Zero on success, negative errno on failure. |
f453ba04 DA |
1798 | */ |
1799 | int drm_mode_getresources(struct drm_device *dev, void *data, | |
1800 | struct drm_file *file_priv) | |
1801 | { | |
1802 | struct drm_mode_card_res *card_res = data; | |
1803 | struct list_head *lh; | |
1804 | struct drm_framebuffer *fb; | |
1805 | struct drm_connector *connector; | |
1806 | struct drm_crtc *crtc; | |
1807 | struct drm_encoder *encoder; | |
1808 | int ret = 0; | |
1809 | int connector_count = 0; | |
1810 | int crtc_count = 0; | |
1811 | int fb_count = 0; | |
1812 | int encoder_count = 0; | |
1813 | int copied = 0, i; | |
1814 | uint32_t __user *fb_id; | |
1815 | uint32_t __user *crtc_id; | |
1816 | uint32_t __user *connector_id; | |
1817 | uint32_t __user *encoder_id; | |
1818 | struct drm_mode_group *mode_group; | |
1819 | ||
fb3b06c8 DA |
1820 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1821 | return -EINVAL; | |
1822 | ||
f453ba04 | 1823 | |
4b096ac1 | 1824 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
1825 | /* |
1826 | * For the non-control nodes we need to limit the list of resources | |
1827 | * by IDs in the group list for this node | |
1828 | */ | |
1829 | list_for_each(lh, &file_priv->fbs) | |
1830 | fb_count++; | |
1831 | ||
4b096ac1 DV |
1832 | /* handle this in 4 parts */ |
1833 | /* FBs */ | |
1834 | if (card_res->count_fbs >= fb_count) { | |
1835 | copied = 0; | |
1836 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; | |
1837 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { | |
1838 | if (put_user(fb->base.id, fb_id + copied)) { | |
1839 | mutex_unlock(&file_priv->fbs_lock); | |
1840 | return -EFAULT; | |
1841 | } | |
1842 | copied++; | |
1843 | } | |
1844 | } | |
1845 | card_res->count_fbs = fb_count; | |
1846 | mutex_unlock(&file_priv->fbs_lock); | |
1847 | ||
fcf93f69 DV |
1848 | /* mode_config.mutex protects the connector list against e.g. DP MST |
1849 | * connector hot-adding. CRTC/Plane lists are invariant. */ | |
1850 | mutex_lock(&dev->mode_config.mutex); | |
43683057 | 1851 | if (!drm_is_primary_client(file_priv)) { |
f453ba04 | 1852 | |
09f308f7 | 1853 | mode_group = NULL; |
f453ba04 DA |
1854 | list_for_each(lh, &dev->mode_config.crtc_list) |
1855 | crtc_count++; | |
1856 | ||
1857 | list_for_each(lh, &dev->mode_config.connector_list) | |
1858 | connector_count++; | |
1859 | ||
1860 | list_for_each(lh, &dev->mode_config.encoder_list) | |
1861 | encoder_count++; | |
1862 | } else { | |
1863 | ||
09f308f7 | 1864 | mode_group = &file_priv->master->minor->mode_group; |
f453ba04 DA |
1865 | crtc_count = mode_group->num_crtcs; |
1866 | connector_count = mode_group->num_connectors; | |
1867 | encoder_count = mode_group->num_encoders; | |
1868 | } | |
1869 | ||
1870 | card_res->max_height = dev->mode_config.max_height; | |
1871 | card_res->min_height = dev->mode_config.min_height; | |
1872 | card_res->max_width = dev->mode_config.max_width; | |
1873 | card_res->min_width = dev->mode_config.min_width; | |
1874 | ||
f453ba04 DA |
1875 | /* CRTCs */ |
1876 | if (card_res->count_crtcs >= crtc_count) { | |
1877 | copied = 0; | |
1878 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; | |
09f308f7 | 1879 | if (!mode_group) { |
f453ba04 DA |
1880 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, |
1881 | head) { | |
9440106b | 1882 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
1883 | if (put_user(crtc->base.id, crtc_id + copied)) { |
1884 | ret = -EFAULT; | |
1885 | goto out; | |
1886 | } | |
1887 | copied++; | |
1888 | } | |
1889 | } else { | |
1890 | for (i = 0; i < mode_group->num_crtcs; i++) { | |
1891 | if (put_user(mode_group->id_list[i], | |
1892 | crtc_id + copied)) { | |
1893 | ret = -EFAULT; | |
1894 | goto out; | |
1895 | } | |
1896 | copied++; | |
1897 | } | |
1898 | } | |
1899 | } | |
1900 | card_res->count_crtcs = crtc_count; | |
1901 | ||
1902 | /* Encoders */ | |
1903 | if (card_res->count_encoders >= encoder_count) { | |
1904 | copied = 0; | |
1905 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; | |
09f308f7 | 1906 | if (!mode_group) { |
f453ba04 DA |
1907 | list_for_each_entry(encoder, |
1908 | &dev->mode_config.encoder_list, | |
1909 | head) { | |
9440106b | 1910 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, |
83a8cfd3 | 1911 | encoder->name); |
f453ba04 DA |
1912 | if (put_user(encoder->base.id, encoder_id + |
1913 | copied)) { | |
1914 | ret = -EFAULT; | |
1915 | goto out; | |
1916 | } | |
1917 | copied++; | |
1918 | } | |
1919 | } else { | |
1920 | for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { | |
1921 | if (put_user(mode_group->id_list[i], | |
1922 | encoder_id + copied)) { | |
1923 | ret = -EFAULT; | |
1924 | goto out; | |
1925 | } | |
1926 | copied++; | |
1927 | } | |
1928 | ||
1929 | } | |
1930 | } | |
1931 | card_res->count_encoders = encoder_count; | |
1932 | ||
1933 | /* Connectors */ | |
1934 | if (card_res->count_connectors >= connector_count) { | |
1935 | copied = 0; | |
1936 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; | |
09f308f7 | 1937 | if (!mode_group) { |
f453ba04 DA |
1938 | list_for_each_entry(connector, |
1939 | &dev->mode_config.connector_list, | |
1940 | head) { | |
9440106b JG |
1941 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
1942 | connector->base.id, | |
25933820 | 1943 | connector->name); |
f453ba04 DA |
1944 | if (put_user(connector->base.id, |
1945 | connector_id + copied)) { | |
1946 | ret = -EFAULT; | |
1947 | goto out; | |
1948 | } | |
1949 | copied++; | |
1950 | } | |
1951 | } else { | |
1952 | int start = mode_group->num_crtcs + | |
1953 | mode_group->num_encoders; | |
1954 | for (i = start; i < start + mode_group->num_connectors; i++) { | |
1955 | if (put_user(mode_group->id_list[i], | |
1956 | connector_id + copied)) { | |
1957 | ret = -EFAULT; | |
1958 | goto out; | |
1959 | } | |
1960 | copied++; | |
1961 | } | |
1962 | } | |
1963 | } | |
1964 | card_res->count_connectors = connector_count; | |
1965 | ||
9440106b | 1966 | DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, |
f453ba04 DA |
1967 | card_res->count_connectors, card_res->count_encoders); |
1968 | ||
1969 | out: | |
fcf93f69 | 1970 | mutex_unlock(&dev->mode_config.mutex); |
f453ba04 DA |
1971 | return ret; |
1972 | } | |
1973 | ||
1974 | /** | |
1975 | * drm_mode_getcrtc - get CRTC configuration | |
065a50ed DV |
1976 | * @dev: drm device for the ioctl |
1977 | * @data: data pointer for the ioctl | |
1978 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1979 | * |
f453ba04 DA |
1980 | * Construct a CRTC configuration structure to return to the user. |
1981 | * | |
1982 | * Called by the user via ioctl. | |
1983 | * | |
c8e32cc1 | 1984 | * Returns: |
1a498633 | 1985 | * Zero on success, negative errno on failure. |
f453ba04 DA |
1986 | */ |
1987 | int drm_mode_getcrtc(struct drm_device *dev, | |
1988 | void *data, struct drm_file *file_priv) | |
1989 | { | |
1990 | struct drm_mode_crtc *crtc_resp = data; | |
1991 | struct drm_crtc *crtc; | |
f453ba04 | 1992 | |
fb3b06c8 DA |
1993 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1994 | return -EINVAL; | |
1995 | ||
a2b34e22 | 1996 | crtc = drm_crtc_find(dev, crtc_resp->crtc_id); |
fcf93f69 DV |
1997 | if (!crtc) |
1998 | return -ENOENT; | |
f453ba04 | 1999 | |
fcf93f69 | 2000 | drm_modeset_lock_crtc(crtc, crtc->primary); |
f453ba04 | 2001 | crtc_resp->gamma_size = crtc->gamma_size; |
f4510a27 MR |
2002 | if (crtc->primary->fb) |
2003 | crtc_resp->fb_id = crtc->primary->fb->base.id; | |
f453ba04 DA |
2004 | else |
2005 | crtc_resp->fb_id = 0; | |
2006 | ||
31c946e8 DV |
2007 | if (crtc->state) { |
2008 | crtc_resp->x = crtc->primary->state->src_x >> 16; | |
2009 | crtc_resp->y = crtc->primary->state->src_y >> 16; | |
2010 | if (crtc->state->enable) { | |
2011 | drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->state->mode); | |
2012 | crtc_resp->mode_valid = 1; | |
f453ba04 | 2013 | |
31c946e8 DV |
2014 | } else { |
2015 | crtc_resp->mode_valid = 0; | |
2016 | } | |
f453ba04 | 2017 | } else { |
31c946e8 DV |
2018 | crtc_resp->x = crtc->x; |
2019 | crtc_resp->y = crtc->y; | |
2020 | if (crtc->enabled) { | |
2021 | drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); | |
2022 | crtc_resp->mode_valid = 1; | |
2023 | ||
2024 | } else { | |
2025 | crtc_resp->mode_valid = 0; | |
2026 | } | |
f453ba04 | 2027 | } |
fcf93f69 | 2028 | drm_modeset_unlock_crtc(crtc); |
f453ba04 | 2029 | |
baf698b0 | 2030 | return 0; |
f453ba04 DA |
2031 | } |
2032 | ||
61d8e328 DL |
2033 | static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, |
2034 | const struct drm_file *file_priv) | |
2035 | { | |
2036 | /* | |
2037 | * If user-space hasn't configured the driver to expose the stereo 3D | |
2038 | * modes, don't expose them. | |
2039 | */ | |
2040 | if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) | |
2041 | return false; | |
2042 | ||
2043 | return true; | |
2044 | } | |
2045 | ||
abd69c55 DV |
2046 | static struct drm_encoder *drm_connector_get_encoder(struct drm_connector *connector) |
2047 | { | |
2048 | /* For atomic drivers only state objects are synchronously updated and | |
2049 | * protected by modeset locks, so check those first. */ | |
2050 | if (connector->state) | |
2051 | return connector->state->best_encoder; | |
2052 | return connector->encoder; | |
2053 | } | |
2054 | ||
95cbf110 | 2055 | /* helper for getconnector and getproperties ioctls */ |
88a48e29 | 2056 | static int get_properties(struct drm_mode_object *obj, bool atomic, |
95cbf110 RC |
2057 | uint32_t __user *prop_ptr, uint64_t __user *prop_values, |
2058 | uint32_t *arg_count_props) | |
2059 | { | |
88a48e29 RC |
2060 | int props_count; |
2061 | int i, ret, copied; | |
2062 | ||
2063 | props_count = obj->properties->count; | |
2064 | if (!atomic) | |
2065 | props_count -= obj->properties->atomic_count; | |
95cbf110 RC |
2066 | |
2067 | if ((*arg_count_props >= props_count) && props_count) { | |
88a48e29 | 2068 | for (i = 0, copied = 0; copied < props_count; i++) { |
95cbf110 RC |
2069 | struct drm_property *prop = obj->properties->properties[i]; |
2070 | uint64_t val; | |
2071 | ||
88a48e29 RC |
2072 | if ((prop->flags & DRM_MODE_PROP_ATOMIC) && !atomic) |
2073 | continue; | |
2074 | ||
95cbf110 RC |
2075 | ret = drm_object_property_get_value(obj, prop, &val); |
2076 | if (ret) | |
2077 | return ret; | |
2078 | ||
2079 | if (put_user(prop->base.id, prop_ptr + copied)) | |
2080 | return -EFAULT; | |
2081 | ||
2082 | if (put_user(val, prop_values + copied)) | |
2083 | return -EFAULT; | |
2084 | ||
2085 | copied++; | |
2086 | } | |
2087 | } | |
2088 | *arg_count_props = props_count; | |
2089 | ||
2090 | return 0; | |
2091 | } | |
2092 | ||
f453ba04 DA |
2093 | /** |
2094 | * drm_mode_getconnector - get connector configuration | |
065a50ed DV |
2095 | * @dev: drm device for the ioctl |
2096 | * @data: data pointer for the ioctl | |
2097 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2098 | * |
f453ba04 DA |
2099 | * Construct a connector configuration structure to return to the user. |
2100 | * | |
2101 | * Called by the user via ioctl. | |
2102 | * | |
c8e32cc1 | 2103 | * Returns: |
1a498633 | 2104 | * Zero on success, negative errno on failure. |
f453ba04 DA |
2105 | */ |
2106 | int drm_mode_getconnector(struct drm_device *dev, void *data, | |
2107 | struct drm_file *file_priv) | |
2108 | { | |
2109 | struct drm_mode_get_connector *out_resp = data; | |
f453ba04 | 2110 | struct drm_connector *connector; |
abd69c55 | 2111 | struct drm_encoder *encoder; |
f453ba04 DA |
2112 | struct drm_display_mode *mode; |
2113 | int mode_count = 0; | |
f453ba04 DA |
2114 | int encoders_count = 0; |
2115 | int ret = 0; | |
2116 | int copied = 0; | |
2117 | int i; | |
2118 | struct drm_mode_modeinfo u_mode; | |
2119 | struct drm_mode_modeinfo __user *mode_ptr; | |
f453ba04 DA |
2120 | uint32_t __user *encoder_ptr; |
2121 | ||
fb3b06c8 DA |
2122 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2123 | return -EINVAL; | |
2124 | ||
f453ba04 DA |
2125 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
2126 | ||
9440106b | 2127 | DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); |
f453ba04 | 2128 | |
7b24056b | 2129 | mutex_lock(&dev->mode_config.mutex); |
f453ba04 | 2130 | |
a2b34e22 RC |
2131 | connector = drm_connector_find(dev, out_resp->connector_id); |
2132 | if (!connector) { | |
f27657f2 | 2133 | ret = -ENOENT; |
f453ba04 DA |
2134 | goto out; |
2135 | } | |
f453ba04 | 2136 | |
01073b08 TR |
2137 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) |
2138 | if (connector->encoder_ids[i] != 0) | |
f453ba04 | 2139 | encoders_count++; |
f453ba04 DA |
2140 | |
2141 | if (out_resp->count_modes == 0) { | |
2142 | connector->funcs->fill_modes(connector, | |
2143 | dev->mode_config.max_width, | |
2144 | dev->mode_config.max_height); | |
2145 | } | |
2146 | ||
2147 | /* delayed so we get modes regardless of pre-fill_modes state */ | |
2148 | list_for_each_entry(mode, &connector->modes, head) | |
61d8e328 DL |
2149 | if (drm_mode_expose_to_userspace(mode, file_priv)) |
2150 | mode_count++; | |
f453ba04 DA |
2151 | |
2152 | out_resp->connector_id = connector->base.id; | |
2153 | out_resp->connector_type = connector->connector_type; | |
2154 | out_resp->connector_type_id = connector->connector_type_id; | |
2155 | out_resp->mm_width = connector->display_info.width_mm; | |
2156 | out_resp->mm_height = connector->display_info.height_mm; | |
2157 | out_resp->subpixel = connector->display_info.subpixel_order; | |
2158 | out_resp->connection = connector->status; | |
2caa80e7 DV |
2159 | |
2160 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); | |
abd69c55 DV |
2161 | encoder = drm_connector_get_encoder(connector); |
2162 | if (encoder) | |
2163 | out_resp->encoder_id = encoder->base.id; | |
f453ba04 DA |
2164 | else |
2165 | out_resp->encoder_id = 0; | |
2166 | ||
2167 | /* | |
2168 | * This ioctl is called twice, once to determine how much space is | |
2169 | * needed, and the 2nd time to fill it. | |
2170 | */ | |
2171 | if ((out_resp->count_modes >= mode_count) && mode_count) { | |
2172 | copied = 0; | |
81f6c7f8 | 2173 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; |
f453ba04 | 2174 | list_for_each_entry(mode, &connector->modes, head) { |
61d8e328 DL |
2175 | if (!drm_mode_expose_to_userspace(mode, file_priv)) |
2176 | continue; | |
2177 | ||
f453ba04 DA |
2178 | drm_crtc_convert_to_umode(&u_mode, mode); |
2179 | if (copy_to_user(mode_ptr + copied, | |
2180 | &u_mode, sizeof(u_mode))) { | |
2181 | ret = -EFAULT; | |
2182 | goto out; | |
2183 | } | |
2184 | copied++; | |
2185 | } | |
2186 | } | |
2187 | out_resp->count_modes = mode_count; | |
2188 | ||
88a48e29 | 2189 | ret = get_properties(&connector->base, file_priv->atomic, |
95cbf110 RC |
2190 | (uint32_t __user *)(unsigned long)(out_resp->props_ptr), |
2191 | (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr), | |
2192 | &out_resp->count_props); | |
2193 | if (ret) | |
2194 | goto out; | |
f453ba04 DA |
2195 | |
2196 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { | |
2197 | copied = 0; | |
81f6c7f8 | 2198 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); |
f453ba04 DA |
2199 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
2200 | if (connector->encoder_ids[i] != 0) { | |
2201 | if (put_user(connector->encoder_ids[i], | |
2202 | encoder_ptr + copied)) { | |
2203 | ret = -EFAULT; | |
2204 | goto out; | |
2205 | } | |
2206 | copied++; | |
2207 | } | |
2208 | } | |
2209 | } | |
2210 | out_resp->count_encoders = encoders_count; | |
2211 | ||
2212 | out: | |
ccfc0865 | 2213 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
7b24056b DV |
2214 | mutex_unlock(&dev->mode_config.mutex); |
2215 | ||
f453ba04 DA |
2216 | return ret; |
2217 | } | |
2218 | ||
abd69c55 DV |
2219 | static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder) |
2220 | { | |
2221 | struct drm_connector *connector; | |
2222 | struct drm_device *dev = encoder->dev; | |
2223 | bool uses_atomic = false; | |
2224 | ||
2225 | /* For atomic drivers only state objects are synchronously updated and | |
2226 | * protected by modeset locks, so check those first. */ | |
2227 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
2228 | if (!connector->state) | |
2229 | continue; | |
2230 | ||
2231 | uses_atomic = true; | |
2232 | ||
2233 | if (connector->state->best_encoder != encoder) | |
2234 | continue; | |
2235 | ||
2236 | return connector->state->crtc; | |
2237 | } | |
2238 | ||
2239 | /* Don't return stale data (e.g. pending async disable). */ | |
2240 | if (uses_atomic) | |
2241 | return NULL; | |
2242 | ||
2243 | return encoder->crtc; | |
2244 | } | |
2245 | ||
c8e32cc1 DV |
2246 | /** |
2247 | * drm_mode_getencoder - get encoder configuration | |
2248 | * @dev: drm device for the ioctl | |
2249 | * @data: data pointer for the ioctl | |
2250 | * @file_priv: drm file for the ioctl call | |
2251 | * | |
2252 | * Construct a encoder configuration structure to return to the user. | |
2253 | * | |
2254 | * Called by the user via ioctl. | |
2255 | * | |
2256 | * Returns: | |
1a498633 | 2257 | * Zero on success, negative errno on failure. |
c8e32cc1 | 2258 | */ |
f453ba04 DA |
2259 | int drm_mode_getencoder(struct drm_device *dev, void *data, |
2260 | struct drm_file *file_priv) | |
2261 | { | |
2262 | struct drm_mode_get_encoder *enc_resp = data; | |
f453ba04 | 2263 | struct drm_encoder *encoder; |
abd69c55 | 2264 | struct drm_crtc *crtc; |
f453ba04 | 2265 | |
fb3b06c8 DA |
2266 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2267 | return -EINVAL; | |
2268 | ||
a2b34e22 | 2269 | encoder = drm_encoder_find(dev, enc_resp->encoder_id); |
fcf93f69 DV |
2270 | if (!encoder) |
2271 | return -ENOENT; | |
f453ba04 | 2272 | |
fcf93f69 | 2273 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
abd69c55 DV |
2274 | crtc = drm_encoder_get_crtc(encoder); |
2275 | if (crtc) | |
2276 | enc_resp->crtc_id = crtc->base.id; | |
f453ba04 DA |
2277 | else |
2278 | enc_resp->crtc_id = 0; | |
fcf93f69 DV |
2279 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
2280 | ||
f453ba04 DA |
2281 | enc_resp->encoder_type = encoder->encoder_type; |
2282 | enc_resp->encoder_id = encoder->base.id; | |
2283 | enc_resp->possible_crtcs = encoder->possible_crtcs; | |
2284 | enc_resp->possible_clones = encoder->possible_clones; | |
2285 | ||
baf698b0 | 2286 | return 0; |
f453ba04 DA |
2287 | } |
2288 | ||
8cf5c917 | 2289 | /** |
c8e32cc1 | 2290 | * drm_mode_getplane_res - enumerate all plane resources |
8cf5c917 JB |
2291 | * @dev: DRM device |
2292 | * @data: ioctl data | |
2293 | * @file_priv: DRM file info | |
2294 | * | |
c8e32cc1 DV |
2295 | * Construct a list of plane ids to return to the user. |
2296 | * | |
2297 | * Called by the user via ioctl. | |
2298 | * | |
2299 | * Returns: | |
1a498633 | 2300 | * Zero on success, negative errno on failure. |
8cf5c917 JB |
2301 | */ |
2302 | int drm_mode_getplane_res(struct drm_device *dev, void *data, | |
c8e32cc1 | 2303 | struct drm_file *file_priv) |
8cf5c917 JB |
2304 | { |
2305 | struct drm_mode_get_plane_res *plane_resp = data; | |
2306 | struct drm_mode_config *config; | |
2307 | struct drm_plane *plane; | |
2308 | uint32_t __user *plane_ptr; | |
fcf93f69 | 2309 | int copied = 0; |
681e7ec7 | 2310 | unsigned num_planes; |
8cf5c917 JB |
2311 | |
2312 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2313 | return -EINVAL; | |
2314 | ||
8cf5c917 JB |
2315 | config = &dev->mode_config; |
2316 | ||
681e7ec7 MR |
2317 | if (file_priv->universal_planes) |
2318 | num_planes = config->num_total_plane; | |
2319 | else | |
2320 | num_planes = config->num_overlay_plane; | |
2321 | ||
8cf5c917 JB |
2322 | /* |
2323 | * This ioctl is called twice, once to determine how much space is | |
2324 | * needed, and the 2nd time to fill it. | |
2325 | */ | |
681e7ec7 MR |
2326 | if (num_planes && |
2327 | (plane_resp->count_planes >= num_planes)) { | |
81f6c7f8 | 2328 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
8cf5c917 | 2329 | |
fcf93f69 | 2330 | /* Plane lists are invariant, no locking needed. */ |
8cf5c917 | 2331 | list_for_each_entry(plane, &config->plane_list, head) { |
681e7ec7 MR |
2332 | /* |
2333 | * Unless userspace set the 'universal planes' | |
2334 | * capability bit, only advertise overlays. | |
2335 | */ | |
2336 | if (plane->type != DRM_PLANE_TYPE_OVERLAY && | |
2337 | !file_priv->universal_planes) | |
e27dde3e MR |
2338 | continue; |
2339 | ||
fcf93f69 DV |
2340 | if (put_user(plane->base.id, plane_ptr + copied)) |
2341 | return -EFAULT; | |
8cf5c917 JB |
2342 | copied++; |
2343 | } | |
2344 | } | |
681e7ec7 | 2345 | plane_resp->count_planes = num_planes; |
8cf5c917 | 2346 | |
fcf93f69 | 2347 | return 0; |
8cf5c917 JB |
2348 | } |
2349 | ||
2350 | /** | |
c8e32cc1 | 2351 | * drm_mode_getplane - get plane configuration |
8cf5c917 JB |
2352 | * @dev: DRM device |
2353 | * @data: ioctl data | |
2354 | * @file_priv: DRM file info | |
2355 | * | |
c8e32cc1 DV |
2356 | * Construct a plane configuration structure to return to the user. |
2357 | * | |
2358 | * Called by the user via ioctl. | |
2359 | * | |
2360 | * Returns: | |
1a498633 | 2361 | * Zero on success, negative errno on failure. |
8cf5c917 JB |
2362 | */ |
2363 | int drm_mode_getplane(struct drm_device *dev, void *data, | |
c8e32cc1 | 2364 | struct drm_file *file_priv) |
8cf5c917 JB |
2365 | { |
2366 | struct drm_mode_get_plane *plane_resp = data; | |
8cf5c917 JB |
2367 | struct drm_plane *plane; |
2368 | uint32_t __user *format_ptr; | |
8cf5c917 JB |
2369 | |
2370 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2371 | return -EINVAL; | |
2372 | ||
a2b34e22 | 2373 | plane = drm_plane_find(dev, plane_resp->plane_id); |
fcf93f69 DV |
2374 | if (!plane) |
2375 | return -ENOENT; | |
8cf5c917 | 2376 | |
fcf93f69 | 2377 | drm_modeset_lock(&plane->mutex, NULL); |
8cf5c917 JB |
2378 | if (plane->crtc) |
2379 | plane_resp->crtc_id = plane->crtc->base.id; | |
2380 | else | |
2381 | plane_resp->crtc_id = 0; | |
2382 | ||
2383 | if (plane->fb) | |
2384 | plane_resp->fb_id = plane->fb->base.id; | |
2385 | else | |
2386 | plane_resp->fb_id = 0; | |
fcf93f69 | 2387 | drm_modeset_unlock(&plane->mutex); |
8cf5c917 JB |
2388 | |
2389 | plane_resp->plane_id = plane->base.id; | |
2390 | plane_resp->possible_crtcs = plane->possible_crtcs; | |
778ad903 | 2391 | plane_resp->gamma_size = 0; |
8cf5c917 JB |
2392 | |
2393 | /* | |
2394 | * This ioctl is called twice, once to determine how much space is | |
2395 | * needed, and the 2nd time to fill it. | |
2396 | */ | |
2397 | if (plane->format_count && | |
2398 | (plane_resp->count_format_types >= plane->format_count)) { | |
81f6c7f8 | 2399 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
8cf5c917 JB |
2400 | if (copy_to_user(format_ptr, |
2401 | plane->format_types, | |
2402 | sizeof(uint32_t) * plane->format_count)) { | |
fcf93f69 | 2403 | return -EFAULT; |
8cf5c917 JB |
2404 | } |
2405 | } | |
2406 | plane_resp->count_format_types = plane->format_count; | |
2407 | ||
baf698b0 | 2408 | return 0; |
8cf5c917 JB |
2409 | } |
2410 | ||
ead8610d LP |
2411 | /** |
2412 | * drm_plane_check_pixel_format - Check if the plane supports the pixel format | |
2413 | * @plane: plane to check for format support | |
2414 | * @format: the pixel format | |
2415 | * | |
2416 | * Returns: | |
2417 | * Zero of @plane has @format in its list of supported pixel formats, -EINVAL | |
2418 | * otherwise. | |
2419 | */ | |
2420 | int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format) | |
2421 | { | |
2422 | unsigned int i; | |
2423 | ||
2424 | for (i = 0; i < plane->format_count; i++) { | |
2425 | if (format == plane->format_types[i]) | |
2426 | return 0; | |
2427 | } | |
2428 | ||
2429 | return -EINVAL; | |
2430 | } | |
2431 | ||
b36552b3 MR |
2432 | /* |
2433 | * setplane_internal - setplane handler for internal callers | |
8cf5c917 | 2434 | * |
b36552b3 MR |
2435 | * Note that we assume an extra reference has already been taken on fb. If the |
2436 | * update fails, this reference will be dropped before return; if it succeeds, | |
2437 | * the previous framebuffer (if any) will be unreferenced instead. | |
c8e32cc1 | 2438 | * |
b36552b3 | 2439 | * src_{x,y,w,h} are provided in 16.16 fixed point format |
8cf5c917 | 2440 | */ |
f2b50c11 DV |
2441 | static int __setplane_internal(struct drm_plane *plane, |
2442 | struct drm_crtc *crtc, | |
2443 | struct drm_framebuffer *fb, | |
2444 | int32_t crtc_x, int32_t crtc_y, | |
2445 | uint32_t crtc_w, uint32_t crtc_h, | |
2446 | /* src_{x,y,w,h} values are 16.16 fixed point */ | |
2447 | uint32_t src_x, uint32_t src_y, | |
2448 | uint32_t src_w, uint32_t src_h) | |
8cf5c917 | 2449 | { |
8cf5c917 | 2450 | int ret = 0; |
42ef8789 | 2451 | unsigned int fb_width, fb_height; |
8cf5c917 | 2452 | |
8cf5c917 | 2453 | /* No fb means shut it down */ |
b36552b3 | 2454 | if (!fb) { |
3d30a59b | 2455 | plane->old_fb = plane->fb; |
731cce48 DV |
2456 | ret = plane->funcs->disable_plane(plane); |
2457 | if (!ret) { | |
2458 | plane->crtc = NULL; | |
2459 | plane->fb = NULL; | |
2460 | } else { | |
3d30a59b | 2461 | plane->old_fb = NULL; |
731cce48 | 2462 | } |
8cf5c917 JB |
2463 | goto out; |
2464 | } | |
2465 | ||
7f994f3f MR |
2466 | /* Check whether this plane is usable on this CRTC */ |
2467 | if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { | |
2468 | DRM_DEBUG_KMS("Invalid crtc for plane\n"); | |
2469 | ret = -EINVAL; | |
2470 | goto out; | |
2471 | } | |
2472 | ||
62443be6 | 2473 | /* Check whether this plane supports the fb pixel format. */ |
ead8610d LP |
2474 | ret = drm_plane_check_pixel_format(plane, fb->pixel_format); |
2475 | if (ret) { | |
6ba6d03e VS |
2476 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
2477 | drm_get_format_name(fb->pixel_format)); | |
62443be6 VS |
2478 | goto out; |
2479 | } | |
2480 | ||
42ef8789 VS |
2481 | fb_width = fb->width << 16; |
2482 | fb_height = fb->height << 16; | |
2483 | ||
2484 | /* Make sure source coordinates are inside the fb. */ | |
b36552b3 MR |
2485 | if (src_w > fb_width || |
2486 | src_x > fb_width - src_w || | |
2487 | src_h > fb_height || | |
2488 | src_y > fb_height - src_h) { | |
42ef8789 VS |
2489 | DRM_DEBUG_KMS("Invalid source coordinates " |
2490 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", | |
b36552b3 MR |
2491 | src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, |
2492 | src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, | |
2493 | src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, | |
2494 | src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); | |
42ef8789 VS |
2495 | ret = -ENOSPC; |
2496 | goto out; | |
2497 | } | |
2498 | ||
3d30a59b | 2499 | plane->old_fb = plane->fb; |
8cf5c917 | 2500 | ret = plane->funcs->update_plane(plane, crtc, fb, |
b36552b3 MR |
2501 | crtc_x, crtc_y, crtc_w, crtc_h, |
2502 | src_x, src_y, src_w, src_h); | |
8cf5c917 JB |
2503 | if (!ret) { |
2504 | plane->crtc = crtc; | |
2505 | plane->fb = fb; | |
35f8badc | 2506 | fb = NULL; |
0fe27f06 | 2507 | } else { |
3d30a59b | 2508 | plane->old_fb = NULL; |
8cf5c917 JB |
2509 | } |
2510 | ||
2511 | out: | |
6c2a7532 DV |
2512 | if (fb) |
2513 | drm_framebuffer_unreference(fb); | |
3d30a59b DV |
2514 | if (plane->old_fb) |
2515 | drm_framebuffer_unreference(plane->old_fb); | |
2516 | plane->old_fb = NULL; | |
8cf5c917 JB |
2517 | |
2518 | return ret; | |
f2b50c11 | 2519 | } |
b36552b3 | 2520 | |
f2b50c11 DV |
2521 | static int setplane_internal(struct drm_plane *plane, |
2522 | struct drm_crtc *crtc, | |
2523 | struct drm_framebuffer *fb, | |
2524 | int32_t crtc_x, int32_t crtc_y, | |
2525 | uint32_t crtc_w, uint32_t crtc_h, | |
2526 | /* src_{x,y,w,h} values are 16.16 fixed point */ | |
2527 | uint32_t src_x, uint32_t src_y, | |
2528 | uint32_t src_w, uint32_t src_h) | |
2529 | { | |
2530 | int ret; | |
2531 | ||
2532 | drm_modeset_lock_all(plane->dev); | |
2533 | ret = __setplane_internal(plane, crtc, fb, | |
2534 | crtc_x, crtc_y, crtc_w, crtc_h, | |
2535 | src_x, src_y, src_w, src_h); | |
2536 | drm_modeset_unlock_all(plane->dev); | |
2537 | ||
2538 | return ret; | |
b36552b3 MR |
2539 | } |
2540 | ||
2541 | /** | |
2542 | * drm_mode_setplane - configure a plane's configuration | |
2543 | * @dev: DRM device | |
2544 | * @data: ioctl data* | |
2545 | * @file_priv: DRM file info | |
2546 | * | |
2547 | * Set plane configuration, including placement, fb, scaling, and other factors. | |
2548 | * Or pass a NULL fb to disable (planes may be disabled without providing a | |
2549 | * valid crtc). | |
2550 | * | |
2551 | * Returns: | |
1a498633 | 2552 | * Zero on success, negative errno on failure. |
b36552b3 MR |
2553 | */ |
2554 | int drm_mode_setplane(struct drm_device *dev, void *data, | |
2555 | struct drm_file *file_priv) | |
2556 | { | |
2557 | struct drm_mode_set_plane *plane_req = data; | |
b36552b3 MR |
2558 | struct drm_plane *plane; |
2559 | struct drm_crtc *crtc = NULL; | |
2560 | struct drm_framebuffer *fb = NULL; | |
2561 | ||
2562 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2563 | return -EINVAL; | |
2564 | ||
2565 | /* Give drivers some help against integer overflows */ | |
2566 | if (plane_req->crtc_w > INT_MAX || | |
2567 | plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w || | |
2568 | plane_req->crtc_h > INT_MAX || | |
2569 | plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) { | |
2570 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", | |
2571 | plane_req->crtc_w, plane_req->crtc_h, | |
2572 | plane_req->crtc_x, plane_req->crtc_y); | |
2573 | return -ERANGE; | |
2574 | } | |
2575 | ||
2576 | /* | |
2577 | * First, find the plane, crtc, and fb objects. If not available, | |
2578 | * we don't bother to call the driver. | |
2579 | */ | |
933f622f RC |
2580 | plane = drm_plane_find(dev, plane_req->plane_id); |
2581 | if (!plane) { | |
b36552b3 MR |
2582 | DRM_DEBUG_KMS("Unknown plane ID %d\n", |
2583 | plane_req->plane_id); | |
2584 | return -ENOENT; | |
2585 | } | |
b36552b3 MR |
2586 | |
2587 | if (plane_req->fb_id) { | |
2588 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); | |
2589 | if (!fb) { | |
2590 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", | |
2591 | plane_req->fb_id); | |
2592 | return -ENOENT; | |
2593 | } | |
2594 | ||
933f622f RC |
2595 | crtc = drm_crtc_find(dev, plane_req->crtc_id); |
2596 | if (!crtc) { | |
b36552b3 MR |
2597 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", |
2598 | plane_req->crtc_id); | |
2599 | return -ENOENT; | |
2600 | } | |
b36552b3 MR |
2601 | } |
2602 | ||
161d0dc1 MR |
2603 | /* |
2604 | * setplane_internal will take care of deref'ing either the old or new | |
2605 | * framebuffer depending on success. | |
2606 | */ | |
17cfd91f | 2607 | return setplane_internal(plane, crtc, fb, |
b36552b3 MR |
2608 | plane_req->crtc_x, plane_req->crtc_y, |
2609 | plane_req->crtc_w, plane_req->crtc_h, | |
2610 | plane_req->src_x, plane_req->src_y, | |
2611 | plane_req->src_w, plane_req->src_h); | |
8cf5c917 JB |
2612 | } |
2613 | ||
2d13b679 DV |
2614 | /** |
2615 | * drm_mode_set_config_internal - helper to call ->set_config | |
2616 | * @set: modeset config to set | |
2617 | * | |
2618 | * This is a little helper to wrap internal calls to the ->set_config driver | |
2619 | * interface. The only thing it adds is correct refcounting dance. | |
4dfd909f | 2620 | * |
c8e32cc1 | 2621 | * Returns: |
1a498633 | 2622 | * Zero on success, negative errno on failure. |
2d13b679 DV |
2623 | */ |
2624 | int drm_mode_set_config_internal(struct drm_mode_set *set) | |
2625 | { | |
2626 | struct drm_crtc *crtc = set->crtc; | |
5cef29aa DV |
2627 | struct drm_framebuffer *fb; |
2628 | struct drm_crtc *tmp; | |
b0d12325 DV |
2629 | int ret; |
2630 | ||
5cef29aa DV |
2631 | /* |
2632 | * NOTE: ->set_config can also disable other crtcs (if we steal all | |
2633 | * connectors from it), hence we need to refcount the fbs across all | |
2634 | * crtcs. Atomic modeset will have saner semantics ... | |
2635 | */ | |
2636 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) | |
3d30a59b | 2637 | tmp->primary->old_fb = tmp->primary->fb; |
5cef29aa | 2638 | |
b0d12325 | 2639 | fb = set->fb; |
2d13b679 | 2640 | |
b0d12325 DV |
2641 | ret = crtc->funcs->set_config(set); |
2642 | if (ret == 0) { | |
e13161af | 2643 | crtc->primary->crtc = crtc; |
0fe27f06 | 2644 | crtc->primary->fb = fb; |
5cef29aa | 2645 | } |
cc85e121 | 2646 | |
5cef29aa | 2647 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { |
f4510a27 MR |
2648 | if (tmp->primary->fb) |
2649 | drm_framebuffer_reference(tmp->primary->fb); | |
3d30a59b DV |
2650 | if (tmp->primary->old_fb) |
2651 | drm_framebuffer_unreference(tmp->primary->old_fb); | |
2652 | tmp->primary->old_fb = NULL; | |
b0d12325 DV |
2653 | } |
2654 | ||
2655 | return ret; | |
2d13b679 DV |
2656 | } |
2657 | EXPORT_SYMBOL(drm_mode_set_config_internal); | |
2658 | ||
ecb7e16b GP |
2659 | /** |
2660 | * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode | |
2661 | * @mode: mode to query | |
2662 | * @hdisplay: hdisplay value to fill in | |
2663 | * @vdisplay: vdisplay value to fill in | |
2664 | * | |
2665 | * The vdisplay value will be doubled if the specified mode is a stereo mode of | |
2666 | * the appropriate layout. | |
2667 | */ | |
2668 | void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, | |
2669 | int *hdisplay, int *vdisplay) | |
2670 | { | |
2671 | struct drm_display_mode adjusted; | |
2672 | ||
2673 | drm_mode_copy(&adjusted, mode); | |
2674 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); | |
2675 | *hdisplay = adjusted.crtc_hdisplay; | |
2676 | *vdisplay = adjusted.crtc_vdisplay; | |
2677 | } | |
2678 | EXPORT_SYMBOL(drm_crtc_get_hv_timing); | |
2679 | ||
af93629d MR |
2680 | /** |
2681 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the | |
2682 | * CRTC viewport | |
2683 | * @crtc: CRTC that framebuffer will be displayed on | |
2684 | * @x: x panning | |
2685 | * @y: y panning | |
2686 | * @mode: mode that framebuffer will be displayed under | |
2687 | * @fb: framebuffer to check size of | |
c11e9283 | 2688 | */ |
af93629d MR |
2689 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
2690 | int x, int y, | |
2691 | const struct drm_display_mode *mode, | |
2692 | const struct drm_framebuffer *fb) | |
c11e9283 DL |
2693 | |
2694 | { | |
2695 | int hdisplay, vdisplay; | |
2696 | ||
ecb7e16b | 2697 | drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); |
a0c1bbb0 | 2698 | |
c11e9283 DL |
2699 | if (crtc->invert_dimensions) |
2700 | swap(hdisplay, vdisplay); | |
2701 | ||
2702 | if (hdisplay > fb->width || | |
2703 | vdisplay > fb->height || | |
2704 | x > fb->width - hdisplay || | |
2705 | y > fb->height - vdisplay) { | |
2706 | DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", | |
2707 | fb->width, fb->height, hdisplay, vdisplay, x, y, | |
2708 | crtc->invert_dimensions ? " (inverted)" : ""); | |
2709 | return -ENOSPC; | |
2710 | } | |
2711 | ||
2712 | return 0; | |
2713 | } | |
af93629d | 2714 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
c11e9283 | 2715 | |
f453ba04 DA |
2716 | /** |
2717 | * drm_mode_setcrtc - set CRTC configuration | |
065a50ed DV |
2718 | * @dev: drm device for the ioctl |
2719 | * @data: data pointer for the ioctl | |
2720 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2721 | * |
f453ba04 DA |
2722 | * Build a new CRTC configuration based on user request. |
2723 | * | |
2724 | * Called by the user via ioctl. | |
2725 | * | |
c8e32cc1 | 2726 | * Returns: |
1a498633 | 2727 | * Zero on success, negative errno on failure. |
f453ba04 DA |
2728 | */ |
2729 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
2730 | struct drm_file *file_priv) | |
2731 | { | |
2732 | struct drm_mode_config *config = &dev->mode_config; | |
2733 | struct drm_mode_crtc *crtc_req = data; | |
6653cc8d | 2734 | struct drm_crtc *crtc; |
f453ba04 DA |
2735 | struct drm_connector **connector_set = NULL, *connector; |
2736 | struct drm_framebuffer *fb = NULL; | |
2737 | struct drm_display_mode *mode = NULL; | |
2738 | struct drm_mode_set set; | |
2739 | uint32_t __user *set_connectors_ptr; | |
4a1b0714 | 2740 | int ret; |
f453ba04 DA |
2741 | int i; |
2742 | ||
fb3b06c8 DA |
2743 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2744 | return -EINVAL; | |
2745 | ||
1d97e915 VS |
2746 | /* For some reason crtc x/y offsets are signed internally. */ |
2747 | if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX) | |
2748 | return -ERANGE; | |
2749 | ||
84849903 | 2750 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
2751 | crtc = drm_crtc_find(dev, crtc_req->crtc_id); |
2752 | if (!crtc) { | |
58367ed6 | 2753 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
f27657f2 | 2754 | ret = -ENOENT; |
f453ba04 DA |
2755 | goto out; |
2756 | } | |
9440106b | 2757 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
2758 | |
2759 | if (crtc_req->mode_valid) { | |
2760 | /* If we have a mode we need a framebuffer. */ | |
2761 | /* If we pass -1, set the mode with the currently bound fb */ | |
2762 | if (crtc_req->fb_id == -1) { | |
f4510a27 | 2763 | if (!crtc->primary->fb) { |
6653cc8d VS |
2764 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
2765 | ret = -EINVAL; | |
2766 | goto out; | |
f453ba04 | 2767 | } |
f4510a27 | 2768 | fb = crtc->primary->fb; |
b0d12325 DV |
2769 | /* Make refcounting symmetric with the lookup path. */ |
2770 | drm_framebuffer_reference(fb); | |
f453ba04 | 2771 | } else { |
786b99ed DV |
2772 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
2773 | if (!fb) { | |
58367ed6 ZY |
2774 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
2775 | crtc_req->fb_id); | |
37c4e705 | 2776 | ret = -ENOENT; |
f453ba04 DA |
2777 | goto out; |
2778 | } | |
f453ba04 DA |
2779 | } |
2780 | ||
2781 | mode = drm_mode_create(dev); | |
ee34ab5b VS |
2782 | if (!mode) { |
2783 | ret = -ENOMEM; | |
2784 | goto out; | |
2785 | } | |
2786 | ||
90367bf6 VS |
2787 | ret = drm_crtc_convert_umode(mode, &crtc_req->mode); |
2788 | if (ret) { | |
2789 | DRM_DEBUG_KMS("Invalid mode\n"); | |
2790 | goto out; | |
2791 | } | |
2792 | ||
23e1ce89 VS |
2793 | mode->status = drm_mode_validate_basic(mode); |
2794 | if (mode->status != MODE_OK) { | |
2795 | ret = -EINVAL; | |
2796 | goto out; | |
2797 | } | |
2798 | ||
f453ba04 | 2799 | drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); |
5f61bb42 | 2800 | |
c11e9283 DL |
2801 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
2802 | mode, fb); | |
2803 | if (ret) | |
5f61bb42 | 2804 | goto out; |
c11e9283 | 2805 | |
f453ba04 DA |
2806 | } |
2807 | ||
2808 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 2809 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
2810 | ret = -EINVAL; |
2811 | goto out; | |
2812 | } | |
2813 | ||
7781de74 | 2814 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
58367ed6 | 2815 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
2816 | crtc_req->count_connectors); |
2817 | ret = -EINVAL; | |
2818 | goto out; | |
2819 | } | |
2820 | ||
2821 | if (crtc_req->count_connectors > 0) { | |
2822 | u32 out_id; | |
2823 | ||
2824 | /* Avoid unbounded kernel memory allocation */ | |
2825 | if (crtc_req->count_connectors > config->num_connector) { | |
2826 | ret = -EINVAL; | |
2827 | goto out; | |
2828 | } | |
2829 | ||
2f6c5389 TR |
2830 | connector_set = kmalloc_array(crtc_req->count_connectors, |
2831 | sizeof(struct drm_connector *), | |
2832 | GFP_KERNEL); | |
f453ba04 DA |
2833 | if (!connector_set) { |
2834 | ret = -ENOMEM; | |
2835 | goto out; | |
2836 | } | |
2837 | ||
2838 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
81f6c7f8 | 2839 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
f453ba04 DA |
2840 | if (get_user(out_id, &set_connectors_ptr[i])) { |
2841 | ret = -EFAULT; | |
2842 | goto out; | |
2843 | } | |
2844 | ||
a2b34e22 RC |
2845 | connector = drm_connector_find(dev, out_id); |
2846 | if (!connector) { | |
58367ed6 ZY |
2847 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
2848 | out_id); | |
f27657f2 | 2849 | ret = -ENOENT; |
f453ba04 DA |
2850 | goto out; |
2851 | } | |
9440106b JG |
2852 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
2853 | connector->base.id, | |
25933820 | 2854 | connector->name); |
f453ba04 DA |
2855 | |
2856 | connector_set[i] = connector; | |
2857 | } | |
2858 | } | |
2859 | ||
2860 | set.crtc = crtc; | |
2861 | set.x = crtc_req->x; | |
2862 | set.y = crtc_req->y; | |
2863 | set.mode = mode; | |
2864 | set.connectors = connector_set; | |
2865 | set.num_connectors = crtc_req->count_connectors; | |
5ef5f72f | 2866 | set.fb = fb; |
2d13b679 | 2867 | ret = drm_mode_set_config_internal(&set); |
f453ba04 DA |
2868 | |
2869 | out: | |
b0d12325 DV |
2870 | if (fb) |
2871 | drm_framebuffer_unreference(fb); | |
2872 | ||
f453ba04 | 2873 | kfree(connector_set); |
ee34ab5b | 2874 | drm_mode_destroy(dev, mode); |
84849903 | 2875 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2876 | return ret; |
2877 | } | |
2878 | ||
161d0dc1 MR |
2879 | /** |
2880 | * drm_mode_cursor_universal - translate legacy cursor ioctl call into a | |
2881 | * universal plane handler call | |
2882 | * @crtc: crtc to update cursor for | |
2883 | * @req: data pointer for the ioctl | |
2884 | * @file_priv: drm file for the ioctl call | |
2885 | * | |
2886 | * Legacy cursor ioctl's work directly with driver buffer handles. To | |
2887 | * translate legacy ioctl calls into universal plane handler calls, we need to | |
2888 | * wrap the native buffer handle in a drm_framebuffer. | |
2889 | * | |
2890 | * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB | |
2891 | * buffer with a pitch of 4*width; the universal plane interface should be used | |
2892 | * directly in cases where the hardware can support other buffer settings and | |
2893 | * userspace wants to make use of these capabilities. | |
2894 | * | |
2895 | * Returns: | |
1a498633 | 2896 | * Zero on success, negative errno on failure. |
161d0dc1 MR |
2897 | */ |
2898 | static int drm_mode_cursor_universal(struct drm_crtc *crtc, | |
2899 | struct drm_mode_cursor2 *req, | |
2900 | struct drm_file *file_priv) | |
2901 | { | |
2902 | struct drm_device *dev = crtc->dev; | |
2903 | struct drm_framebuffer *fb = NULL; | |
2904 | struct drm_mode_fb_cmd2 fbreq = { | |
2905 | .width = req->width, | |
2906 | .height = req->height, | |
2907 | .pixel_format = DRM_FORMAT_ARGB8888, | |
2908 | .pitches = { req->width * 4 }, | |
2909 | .handles = { req->handle }, | |
2910 | }; | |
2911 | int32_t crtc_x, crtc_y; | |
2912 | uint32_t crtc_w = 0, crtc_h = 0; | |
2913 | uint32_t src_w = 0, src_h = 0; | |
2914 | int ret = 0; | |
2915 | ||
2916 | BUG_ON(!crtc->cursor); | |
f2b50c11 | 2917 | WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL); |
161d0dc1 MR |
2918 | |
2919 | /* | |
2920 | * Obtain fb we'll be using (either new or existing) and take an extra | |
2921 | * reference to it if fb != null. setplane will take care of dropping | |
2922 | * the reference if the plane update fails. | |
2923 | */ | |
2924 | if (req->flags & DRM_MODE_CURSOR_BO) { | |
2925 | if (req->handle) { | |
2926 | fb = add_framebuffer_internal(dev, &fbreq, file_priv); | |
2927 | if (IS_ERR(fb)) { | |
2928 | DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n"); | |
2929 | return PTR_ERR(fb); | |
2930 | } | |
2931 | ||
2932 | drm_framebuffer_reference(fb); | |
2933 | } else { | |
2934 | fb = NULL; | |
2935 | } | |
2936 | } else { | |
161d0dc1 MR |
2937 | fb = crtc->cursor->fb; |
2938 | if (fb) | |
2939 | drm_framebuffer_reference(fb); | |
161d0dc1 MR |
2940 | } |
2941 | ||
2942 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
2943 | crtc_x = req->x; | |
2944 | crtc_y = req->y; | |
2945 | } else { | |
2946 | crtc_x = crtc->cursor_x; | |
2947 | crtc_y = crtc->cursor_y; | |
2948 | } | |
2949 | ||
2950 | if (fb) { | |
2951 | crtc_w = fb->width; | |
2952 | crtc_h = fb->height; | |
2953 | src_w = fb->width << 16; | |
2954 | src_h = fb->height << 16; | |
2955 | } | |
2956 | ||
2957 | /* | |
2958 | * setplane_internal will take care of deref'ing either the old or new | |
2959 | * framebuffer depending on success. | |
2960 | */ | |
f2b50c11 | 2961 | ret = __setplane_internal(crtc->cursor, crtc, fb, |
161d0dc1 MR |
2962 | crtc_x, crtc_y, crtc_w, crtc_h, |
2963 | 0, 0, src_w, src_h); | |
2964 | ||
2965 | /* Update successful; save new cursor position, if necessary */ | |
2966 | if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) { | |
2967 | crtc->cursor_x = req->x; | |
2968 | crtc->cursor_y = req->y; | |
2969 | } | |
2970 | ||
2971 | return ret; | |
2972 | } | |
2973 | ||
4c813d4d DA |
2974 | static int drm_mode_cursor_common(struct drm_device *dev, |
2975 | struct drm_mode_cursor2 *req, | |
2976 | struct drm_file *file_priv) | |
f453ba04 | 2977 | { |
f453ba04 DA |
2978 | struct drm_crtc *crtc; |
2979 | int ret = 0; | |
2980 | ||
fb3b06c8 DA |
2981 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2982 | return -EINVAL; | |
2983 | ||
7c4eaca4 | 2984 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
f453ba04 | 2985 | return -EINVAL; |
f453ba04 | 2986 | |
a2b34e22 RC |
2987 | crtc = drm_crtc_find(dev, req->crtc_id); |
2988 | if (!crtc) { | |
58367ed6 | 2989 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
f27657f2 | 2990 | return -ENOENT; |
f453ba04 | 2991 | } |
f453ba04 | 2992 | |
161d0dc1 MR |
2993 | /* |
2994 | * If this crtc has a universal cursor plane, call that plane's update | |
2995 | * handler rather than using legacy cursor handlers. | |
2996 | */ | |
4d02e2de | 2997 | drm_modeset_lock_crtc(crtc, crtc->cursor); |
f2b50c11 DV |
2998 | if (crtc->cursor) { |
2999 | ret = drm_mode_cursor_universal(crtc, req, file_priv); | |
3000 | goto out; | |
3001 | } | |
3002 | ||
f453ba04 | 3003 | if (req->flags & DRM_MODE_CURSOR_BO) { |
4c813d4d | 3004 | if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { |
f453ba04 DA |
3005 | ret = -ENXIO; |
3006 | goto out; | |
3007 | } | |
3008 | /* Turns off the cursor if handle is 0 */ | |
4c813d4d DA |
3009 | if (crtc->funcs->cursor_set2) |
3010 | ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, | |
3011 | req->width, req->height, req->hot_x, req->hot_y); | |
3012 | else | |
3013 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, | |
3014 | req->width, req->height); | |
f453ba04 DA |
3015 | } |
3016 | ||
3017 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
3018 | if (crtc->funcs->cursor_move) { | |
3019 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); | |
3020 | } else { | |
f453ba04 DA |
3021 | ret = -EFAULT; |
3022 | goto out; | |
3023 | } | |
3024 | } | |
3025 | out: | |
d059f652 | 3026 | drm_modeset_unlock_crtc(crtc); |
dac35663 | 3027 | |
f453ba04 | 3028 | return ret; |
4c813d4d DA |
3029 | |
3030 | } | |
c8e32cc1 DV |
3031 | |
3032 | ||
3033 | /** | |
3034 | * drm_mode_cursor_ioctl - set CRTC's cursor configuration | |
3035 | * @dev: drm device for the ioctl | |
3036 | * @data: data pointer for the ioctl | |
3037 | * @file_priv: drm file for the ioctl call | |
3038 | * | |
3039 | * Set the cursor configuration based on user request. | |
3040 | * | |
3041 | * Called by the user via ioctl. | |
3042 | * | |
3043 | * Returns: | |
1a498633 | 3044 | * Zero on success, negative errno on failure. |
c8e32cc1 | 3045 | */ |
4c813d4d | 3046 | int drm_mode_cursor_ioctl(struct drm_device *dev, |
c8e32cc1 | 3047 | void *data, struct drm_file *file_priv) |
4c813d4d DA |
3048 | { |
3049 | struct drm_mode_cursor *req = data; | |
3050 | struct drm_mode_cursor2 new_req; | |
3051 | ||
3052 | memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); | |
3053 | new_req.hot_x = new_req.hot_y = 0; | |
3054 | ||
3055 | return drm_mode_cursor_common(dev, &new_req, file_priv); | |
3056 | } | |
3057 | ||
c8e32cc1 DV |
3058 | /** |
3059 | * drm_mode_cursor2_ioctl - set CRTC's cursor configuration | |
3060 | * @dev: drm device for the ioctl | |
3061 | * @data: data pointer for the ioctl | |
3062 | * @file_priv: drm file for the ioctl call | |
3063 | * | |
3064 | * Set the cursor configuration based on user request. This implements the 2nd | |
3065 | * version of the cursor ioctl, which allows userspace to additionally specify | |
3066 | * the hotspot of the pointer. | |
3067 | * | |
3068 | * Called by the user via ioctl. | |
3069 | * | |
3070 | * Returns: | |
1a498633 | 3071 | * Zero on success, negative errno on failure. |
c8e32cc1 | 3072 | */ |
4c813d4d DA |
3073 | int drm_mode_cursor2_ioctl(struct drm_device *dev, |
3074 | void *data, struct drm_file *file_priv) | |
3075 | { | |
3076 | struct drm_mode_cursor2 *req = data; | |
4dfd909f | 3077 | |
4c813d4d | 3078 | return drm_mode_cursor_common(dev, req, file_priv); |
f453ba04 DA |
3079 | } |
3080 | ||
c8e32cc1 DV |
3081 | /** |
3082 | * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description | |
3083 | * @bpp: bits per pixels | |
3084 | * @depth: bit depth per pixel | |
3085 | * | |
3086 | * Computes a drm fourcc pixel format code for the given @bpp/@depth values. | |
3087 | * Useful in fbdev emulation code, since that deals in those values. | |
3088 | */ | |
308e5bcb JB |
3089 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) |
3090 | { | |
3091 | uint32_t fmt; | |
3092 | ||
3093 | switch (bpp) { | |
3094 | case 8: | |
d84f031b | 3095 | fmt = DRM_FORMAT_C8; |
308e5bcb JB |
3096 | break; |
3097 | case 16: | |
3098 | if (depth == 15) | |
04b3924d | 3099 | fmt = DRM_FORMAT_XRGB1555; |
308e5bcb | 3100 | else |
04b3924d | 3101 | fmt = DRM_FORMAT_RGB565; |
308e5bcb JB |
3102 | break; |
3103 | case 24: | |
04b3924d | 3104 | fmt = DRM_FORMAT_RGB888; |
308e5bcb JB |
3105 | break; |
3106 | case 32: | |
3107 | if (depth == 24) | |
04b3924d | 3108 | fmt = DRM_FORMAT_XRGB8888; |
308e5bcb | 3109 | else if (depth == 30) |
04b3924d | 3110 | fmt = DRM_FORMAT_XRGB2101010; |
308e5bcb | 3111 | else |
04b3924d | 3112 | fmt = DRM_FORMAT_ARGB8888; |
308e5bcb JB |
3113 | break; |
3114 | default: | |
04b3924d VS |
3115 | DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); |
3116 | fmt = DRM_FORMAT_XRGB8888; | |
308e5bcb JB |
3117 | break; |
3118 | } | |
3119 | ||
3120 | return fmt; | |
3121 | } | |
3122 | EXPORT_SYMBOL(drm_mode_legacy_fb_format); | |
3123 | ||
f453ba04 DA |
3124 | /** |
3125 | * drm_mode_addfb - add an FB to the graphics configuration | |
065a50ed DV |
3126 | * @dev: drm device for the ioctl |
3127 | * @data: data pointer for the ioctl | |
3128 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3129 | * |
c8e32cc1 | 3130 | * Add a new FB to the specified CRTC, given a user request. This is the |
209f5527 | 3131 | * original addfb ioctl which only supported RGB formats. |
f453ba04 DA |
3132 | * |
3133 | * Called by the user via ioctl. | |
3134 | * | |
c8e32cc1 | 3135 | * Returns: |
1a498633 | 3136 | * Zero on success, negative errno on failure. |
f453ba04 DA |
3137 | */ |
3138 | int drm_mode_addfb(struct drm_device *dev, | |
3139 | void *data, struct drm_file *file_priv) | |
3140 | { | |
308e5bcb JB |
3141 | struct drm_mode_fb_cmd *or = data; |
3142 | struct drm_mode_fb_cmd2 r = {}; | |
228f2cb3 | 3143 | int ret; |
308e5bcb | 3144 | |
228f2cb3 | 3145 | /* convert to new format and call new ioctl */ |
308e5bcb JB |
3146 | r.fb_id = or->fb_id; |
3147 | r.width = or->width; | |
3148 | r.height = or->height; | |
3149 | r.pitches[0] = or->pitch; | |
3150 | r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); | |
3151 | r.handles[0] = or->handle; | |
3152 | ||
228f2cb3 CE |
3153 | ret = drm_mode_addfb2(dev, &r, file_priv); |
3154 | if (ret) | |
3155 | return ret; | |
308e5bcb | 3156 | |
228f2cb3 | 3157 | or->fb_id = r.fb_id; |
4b096ac1 | 3158 | |
baf698b0 | 3159 | return 0; |
308e5bcb JB |
3160 | } |
3161 | ||
cff91b62 | 3162 | static int format_check(const struct drm_mode_fb_cmd2 *r) |
935b5977 VS |
3163 | { |
3164 | uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; | |
3165 | ||
3166 | switch (format) { | |
3167 | case DRM_FORMAT_C8: | |
3168 | case DRM_FORMAT_RGB332: | |
3169 | case DRM_FORMAT_BGR233: | |
3170 | case DRM_FORMAT_XRGB4444: | |
3171 | case DRM_FORMAT_XBGR4444: | |
3172 | case DRM_FORMAT_RGBX4444: | |
3173 | case DRM_FORMAT_BGRX4444: | |
3174 | case DRM_FORMAT_ARGB4444: | |
3175 | case DRM_FORMAT_ABGR4444: | |
3176 | case DRM_FORMAT_RGBA4444: | |
3177 | case DRM_FORMAT_BGRA4444: | |
3178 | case DRM_FORMAT_XRGB1555: | |
3179 | case DRM_FORMAT_XBGR1555: | |
3180 | case DRM_FORMAT_RGBX5551: | |
3181 | case DRM_FORMAT_BGRX5551: | |
3182 | case DRM_FORMAT_ARGB1555: | |
3183 | case DRM_FORMAT_ABGR1555: | |
3184 | case DRM_FORMAT_RGBA5551: | |
3185 | case DRM_FORMAT_BGRA5551: | |
3186 | case DRM_FORMAT_RGB565: | |
3187 | case DRM_FORMAT_BGR565: | |
3188 | case DRM_FORMAT_RGB888: | |
3189 | case DRM_FORMAT_BGR888: | |
3190 | case DRM_FORMAT_XRGB8888: | |
3191 | case DRM_FORMAT_XBGR8888: | |
3192 | case DRM_FORMAT_RGBX8888: | |
3193 | case DRM_FORMAT_BGRX8888: | |
3194 | case DRM_FORMAT_ARGB8888: | |
3195 | case DRM_FORMAT_ABGR8888: | |
3196 | case DRM_FORMAT_RGBA8888: | |
3197 | case DRM_FORMAT_BGRA8888: | |
3198 | case DRM_FORMAT_XRGB2101010: | |
3199 | case DRM_FORMAT_XBGR2101010: | |
3200 | case DRM_FORMAT_RGBX1010102: | |
3201 | case DRM_FORMAT_BGRX1010102: | |
3202 | case DRM_FORMAT_ARGB2101010: | |
3203 | case DRM_FORMAT_ABGR2101010: | |
3204 | case DRM_FORMAT_RGBA1010102: | |
3205 | case DRM_FORMAT_BGRA1010102: | |
3206 | case DRM_FORMAT_YUYV: | |
3207 | case DRM_FORMAT_YVYU: | |
3208 | case DRM_FORMAT_UYVY: | |
3209 | case DRM_FORMAT_VYUY: | |
3210 | case DRM_FORMAT_AYUV: | |
3211 | case DRM_FORMAT_NV12: | |
3212 | case DRM_FORMAT_NV21: | |
3213 | case DRM_FORMAT_NV16: | |
3214 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
3215 | case DRM_FORMAT_NV24: |
3216 | case DRM_FORMAT_NV42: | |
935b5977 VS |
3217 | case DRM_FORMAT_YUV410: |
3218 | case DRM_FORMAT_YVU410: | |
3219 | case DRM_FORMAT_YUV411: | |
3220 | case DRM_FORMAT_YVU411: | |
3221 | case DRM_FORMAT_YUV420: | |
3222 | case DRM_FORMAT_YVU420: | |
3223 | case DRM_FORMAT_YUV422: | |
3224 | case DRM_FORMAT_YVU422: | |
3225 | case DRM_FORMAT_YUV444: | |
3226 | case DRM_FORMAT_YVU444: | |
3227 | return 0; | |
3228 | default: | |
23c453a4 VS |
3229 | DRM_DEBUG_KMS("invalid pixel format %s\n", |
3230 | drm_get_format_name(r->pixel_format)); | |
935b5977 VS |
3231 | return -EINVAL; |
3232 | } | |
3233 | } | |
3234 | ||
cff91b62 | 3235 | static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) |
d1b45d5f VS |
3236 | { |
3237 | int ret, hsub, vsub, num_planes, i; | |
3238 | ||
3239 | ret = format_check(r); | |
3240 | if (ret) { | |
6ba6d03e VS |
3241 | DRM_DEBUG_KMS("bad framebuffer format %s\n", |
3242 | drm_get_format_name(r->pixel_format)); | |
d1b45d5f VS |
3243 | return ret; |
3244 | } | |
3245 | ||
3246 | hsub = drm_format_horz_chroma_subsampling(r->pixel_format); | |
3247 | vsub = drm_format_vert_chroma_subsampling(r->pixel_format); | |
3248 | num_planes = drm_format_num_planes(r->pixel_format); | |
3249 | ||
3250 | if (r->width == 0 || r->width % hsub) { | |
209f5527 | 3251 | DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width); |
d1b45d5f VS |
3252 | return -EINVAL; |
3253 | } | |
3254 | ||
3255 | if (r->height == 0 || r->height % vsub) { | |
1aa1b11c | 3256 | DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); |
d1b45d5f VS |
3257 | return -EINVAL; |
3258 | } | |
3259 | ||
3260 | for (i = 0; i < num_planes; i++) { | |
3261 | unsigned int width = r->width / (i != 0 ? hsub : 1); | |
b180b5d1 VS |
3262 | unsigned int height = r->height / (i != 0 ? vsub : 1); |
3263 | unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); | |
d1b45d5f VS |
3264 | |
3265 | if (!r->handles[i]) { | |
1aa1b11c | 3266 | DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); |
d1b45d5f VS |
3267 | return -EINVAL; |
3268 | } | |
3269 | ||
b180b5d1 VS |
3270 | if ((uint64_t) width * cpp > UINT_MAX) |
3271 | return -ERANGE; | |
3272 | ||
3273 | if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) | |
3274 | return -ERANGE; | |
3275 | ||
3276 | if (r->pitches[i] < width * cpp) { | |
1aa1b11c | 3277 | DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); |
d1b45d5f VS |
3278 | return -EINVAL; |
3279 | } | |
e3eb3250 RC |
3280 | |
3281 | if (r->modifier[i] && !(r->flags & DRM_MODE_FB_MODIFIERS)) { | |
3282 | DRM_DEBUG_KMS("bad fb modifier %llu for plane %d\n", | |
3283 | r->modifier[i], i); | |
3284 | return -EINVAL; | |
3285 | } | |
d1b45d5f VS |
3286 | } |
3287 | ||
3288 | return 0; | |
3289 | } | |
3290 | ||
c394c2b0 MR |
3291 | static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev, |
3292 | struct drm_mode_fb_cmd2 *r, | |
3293 | struct drm_file *file_priv) | |
308e5bcb | 3294 | { |
f453ba04 DA |
3295 | struct drm_mode_config *config = &dev->mode_config; |
3296 | struct drm_framebuffer *fb; | |
4a1b0714 | 3297 | int ret; |
f453ba04 | 3298 | |
e3eb3250 | 3299 | if (r->flags & ~(DRM_MODE_FB_INTERLACED | DRM_MODE_FB_MODIFIERS)) { |
e3cc3520 | 3300 | DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); |
c394c2b0 | 3301 | return ERR_PTR(-EINVAL); |
e3cc3520 VS |
3302 | } |
3303 | ||
f453ba04 | 3304 | if ((config->min_width > r->width) || (r->width > config->max_width)) { |
1aa1b11c | 3305 | DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", |
8cf5c917 | 3306 | r->width, config->min_width, config->max_width); |
c394c2b0 | 3307 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
3308 | } |
3309 | if ((config->min_height > r->height) || (r->height > config->max_height)) { | |
1aa1b11c | 3310 | DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", |
8cf5c917 | 3311 | r->height, config->min_height, config->max_height); |
c394c2b0 | 3312 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
3313 | } |
3314 | ||
e3eb3250 RC |
3315 | if (r->flags & DRM_MODE_FB_MODIFIERS && |
3316 | !dev->mode_config.allow_fb_modifiers) { | |
3317 | DRM_DEBUG_KMS("driver does not support fb modifiers\n"); | |
3318 | return ERR_PTR(-EINVAL); | |
3319 | } | |
3320 | ||
d1b45d5f VS |
3321 | ret = framebuffer_check(r); |
3322 | if (ret) | |
c394c2b0 | 3323 | return ERR_PTR(ret); |
935b5977 | 3324 | |
f453ba04 | 3325 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
cce13ff7 | 3326 | if (IS_ERR(fb)) { |
1aa1b11c | 3327 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
c394c2b0 | 3328 | return fb; |
f453ba04 DA |
3329 | } |
3330 | ||
4b096ac1 | 3331 | mutex_lock(&file_priv->fbs_lock); |
e0c8463a | 3332 | r->fb_id = fb->base.id; |
f453ba04 | 3333 | list_add(&fb->filp_head, &file_priv->fbs); |
9440106b | 3334 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); |
4b096ac1 | 3335 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 3336 | |
c394c2b0 MR |
3337 | return fb; |
3338 | } | |
4b096ac1 | 3339 | |
c394c2b0 MR |
3340 | /** |
3341 | * drm_mode_addfb2 - add an FB to the graphics configuration | |
3342 | * @dev: drm device for the ioctl | |
3343 | * @data: data pointer for the ioctl | |
3344 | * @file_priv: drm file for the ioctl call | |
3345 | * | |
3346 | * Add a new FB to the specified CRTC, given a user request with format. This is | |
3347 | * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers | |
3348 | * and uses fourcc codes as pixel format specifiers. | |
3349 | * | |
3350 | * Called by the user via ioctl. | |
3351 | * | |
3352 | * Returns: | |
1a498633 | 3353 | * Zero on success, negative errno on failure. |
c394c2b0 MR |
3354 | */ |
3355 | int drm_mode_addfb2(struct drm_device *dev, | |
3356 | void *data, struct drm_file *file_priv) | |
3357 | { | |
3358 | struct drm_framebuffer *fb; | |
3359 | ||
3360 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3361 | return -EINVAL; | |
3362 | ||
3363 | fb = add_framebuffer_internal(dev, data, file_priv); | |
3364 | if (IS_ERR(fb)) | |
3365 | return PTR_ERR(fb); | |
3366 | ||
3367 | return 0; | |
f453ba04 DA |
3368 | } |
3369 | ||
3370 | /** | |
3371 | * drm_mode_rmfb - remove an FB from the configuration | |
065a50ed DV |
3372 | * @dev: drm device for the ioctl |
3373 | * @data: data pointer for the ioctl | |
3374 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3375 | * |
f453ba04 DA |
3376 | * Remove the FB specified by the user. |
3377 | * | |
3378 | * Called by the user via ioctl. | |
3379 | * | |
c8e32cc1 | 3380 | * Returns: |
1a498633 | 3381 | * Zero on success, negative errno on failure. |
f453ba04 DA |
3382 | */ |
3383 | int drm_mode_rmfb(struct drm_device *dev, | |
3384 | void *data, struct drm_file *file_priv) | |
3385 | { | |
f453ba04 DA |
3386 | struct drm_framebuffer *fb = NULL; |
3387 | struct drm_framebuffer *fbl = NULL; | |
3388 | uint32_t *id = data; | |
f453ba04 DA |
3389 | int found = 0; |
3390 | ||
fb3b06c8 DA |
3391 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3392 | return -EINVAL; | |
3393 | ||
4b096ac1 | 3394 | mutex_lock(&file_priv->fbs_lock); |
2b677e8c DV |
3395 | mutex_lock(&dev->mode_config.fb_lock); |
3396 | fb = __drm_framebuffer_lookup(dev, *id); | |
3397 | if (!fb) | |
3398 | goto fail_lookup; | |
3399 | ||
f453ba04 DA |
3400 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
3401 | if (fb == fbl) | |
3402 | found = 1; | |
2b677e8c DV |
3403 | if (!found) |
3404 | goto fail_lookup; | |
3405 | ||
3406 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
3407 | __drm_framebuffer_unregister(dev, fb); | |
f453ba04 | 3408 | |
4b096ac1 | 3409 | list_del_init(&fb->filp_head); |
2b677e8c | 3410 | mutex_unlock(&dev->mode_config.fb_lock); |
4b096ac1 | 3411 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 3412 | |
4b096ac1 | 3413 | drm_framebuffer_remove(fb); |
4b096ac1 | 3414 | |
2b677e8c DV |
3415 | return 0; |
3416 | ||
3417 | fail_lookup: | |
3418 | mutex_unlock(&dev->mode_config.fb_lock); | |
3419 | mutex_unlock(&file_priv->fbs_lock); | |
3420 | ||
37c4e705 | 3421 | return -ENOENT; |
f453ba04 DA |
3422 | } |
3423 | ||
3424 | /** | |
3425 | * drm_mode_getfb - get FB info | |
065a50ed DV |
3426 | * @dev: drm device for the ioctl |
3427 | * @data: data pointer for the ioctl | |
3428 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3429 | * |
f453ba04 DA |
3430 | * Lookup the FB given its ID and return info about it. |
3431 | * | |
3432 | * Called by the user via ioctl. | |
3433 | * | |
c8e32cc1 | 3434 | * Returns: |
1a498633 | 3435 | * Zero on success, negative errno on failure. |
f453ba04 DA |
3436 | */ |
3437 | int drm_mode_getfb(struct drm_device *dev, | |
3438 | void *data, struct drm_file *file_priv) | |
3439 | { | |
3440 | struct drm_mode_fb_cmd *r = data; | |
f453ba04 | 3441 | struct drm_framebuffer *fb; |
58c0dca1 | 3442 | int ret; |
f453ba04 | 3443 | |
fb3b06c8 DA |
3444 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3445 | return -EINVAL; | |
3446 | ||
786b99ed | 3447 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
58c0dca1 | 3448 | if (!fb) |
37c4e705 | 3449 | return -ENOENT; |
f453ba04 DA |
3450 | |
3451 | r->height = fb->height; | |
3452 | r->width = fb->width; | |
3453 | r->depth = fb->depth; | |
3454 | r->bpp = fb->bits_per_pixel; | |
01f2c773 | 3455 | r->pitch = fb->pitches[0]; |
101b96f3 | 3456 | if (fb->funcs->create_handle) { |
09f308f7 | 3457 | if (file_priv->is_master || capable(CAP_SYS_ADMIN) || |
43683057 | 3458 | drm_is_control_client(file_priv)) { |
101b96f3 DH |
3459 | ret = fb->funcs->create_handle(fb, file_priv, |
3460 | &r->handle); | |
3461 | } else { | |
3462 | /* GET_FB() is an unprivileged ioctl so we must not | |
3463 | * return a buffer-handle to non-master processes! For | |
3464 | * backwards-compatibility reasons, we cannot make | |
3465 | * GET_FB() privileged, so just return an invalid handle | |
3466 | * for non-masters. */ | |
3467 | r->handle = 0; | |
3468 | ret = 0; | |
3469 | } | |
3470 | } else { | |
af26ef3b | 3471 | ret = -ENODEV; |
101b96f3 | 3472 | } |
f453ba04 | 3473 | |
58c0dca1 DV |
3474 | drm_framebuffer_unreference(fb); |
3475 | ||
f453ba04 DA |
3476 | return ret; |
3477 | } | |
3478 | ||
c8e32cc1 DV |
3479 | /** |
3480 | * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB | |
3481 | * @dev: drm device for the ioctl | |
3482 | * @data: data pointer for the ioctl | |
3483 | * @file_priv: drm file for the ioctl call | |
3484 | * | |
3485 | * Lookup the FB and flush out the damaged area supplied by userspace as a clip | |
3486 | * rectangle list. Generic userspace which does frontbuffer rendering must call | |
3487 | * this ioctl to flush out the changes on manual-update display outputs, e.g. | |
3488 | * usb display-link, mipi manual update panels or edp panel self refresh modes. | |
3489 | * | |
3490 | * Modesetting drivers which always update the frontbuffer do not need to | |
3491 | * implement the corresponding ->dirty framebuffer callback. | |
3492 | * | |
3493 | * Called by the user via ioctl. | |
3494 | * | |
3495 | * Returns: | |
1a498633 | 3496 | * Zero on success, negative errno on failure. |
c8e32cc1 | 3497 | */ |
884840aa JB |
3498 | int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
3499 | void *data, struct drm_file *file_priv) | |
3500 | { | |
3501 | struct drm_clip_rect __user *clips_ptr; | |
3502 | struct drm_clip_rect *clips = NULL; | |
3503 | struct drm_mode_fb_dirty_cmd *r = data; | |
884840aa JB |
3504 | struct drm_framebuffer *fb; |
3505 | unsigned flags; | |
3506 | int num_clips; | |
4a1b0714 | 3507 | int ret; |
884840aa | 3508 | |
fb3b06c8 DA |
3509 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3510 | return -EINVAL; | |
3511 | ||
786b99ed | 3512 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
4ccf097f | 3513 | if (!fb) |
37c4e705 | 3514 | return -ENOENT; |
884840aa JB |
3515 | |
3516 | num_clips = r->num_clips; | |
81f6c7f8 | 3517 | clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; |
884840aa JB |
3518 | |
3519 | if (!num_clips != !clips_ptr) { | |
3520 | ret = -EINVAL; | |
3521 | goto out_err1; | |
3522 | } | |
3523 | ||
3524 | flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; | |
3525 | ||
3526 | /* If userspace annotates copy, clips must come in pairs */ | |
3527 | if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { | |
3528 | ret = -EINVAL; | |
3529 | goto out_err1; | |
3530 | } | |
3531 | ||
3532 | if (num_clips && clips_ptr) { | |
a5cd3351 XW |
3533 | if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { |
3534 | ret = -EINVAL; | |
3535 | goto out_err1; | |
3536 | } | |
bd3f0ff9 | 3537 | clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); |
884840aa JB |
3538 | if (!clips) { |
3539 | ret = -ENOMEM; | |
3540 | goto out_err1; | |
3541 | } | |
3542 | ||
3543 | ret = copy_from_user(clips, clips_ptr, | |
3544 | num_clips * sizeof(*clips)); | |
e902a358 DC |
3545 | if (ret) { |
3546 | ret = -EFAULT; | |
884840aa | 3547 | goto out_err2; |
e902a358 | 3548 | } |
884840aa JB |
3549 | } |
3550 | ||
3551 | if (fb->funcs->dirty) { | |
02b00162 TH |
3552 | ret = fb->funcs->dirty(fb, file_priv, flags, r->color, |
3553 | clips, num_clips); | |
884840aa JB |
3554 | } else { |
3555 | ret = -ENOSYS; | |
884840aa JB |
3556 | } |
3557 | ||
3558 | out_err2: | |
3559 | kfree(clips); | |
3560 | out_err1: | |
4ccf097f DV |
3561 | drm_framebuffer_unreference(fb); |
3562 | ||
884840aa JB |
3563 | return ret; |
3564 | } | |
3565 | ||
3566 | ||
f453ba04 DA |
3567 | /** |
3568 | * drm_fb_release - remove and free the FBs on this file | |
065a50ed | 3569 | * @priv: drm file for the ioctl |
f453ba04 | 3570 | * |
f453ba04 DA |
3571 | * Destroy all the FBs associated with @filp. |
3572 | * | |
3573 | * Called by the user via ioctl. | |
3574 | * | |
c8e32cc1 | 3575 | * Returns: |
1a498633 | 3576 | * Zero on success, negative errno on failure. |
f453ba04 | 3577 | */ |
ea39f835 | 3578 | void drm_fb_release(struct drm_file *priv) |
f453ba04 | 3579 | { |
f453ba04 DA |
3580 | struct drm_device *dev = priv->minor->dev; |
3581 | struct drm_framebuffer *fb, *tfb; | |
3582 | ||
1b116297 DV |
3583 | /* |
3584 | * When the file gets released that means no one else can access the fb | |
e2db726b | 3585 | * list any more, so no need to grab fpriv->fbs_lock. And we need to |
1b116297 DV |
3586 | * avoid upsetting lockdep since the universal cursor code adds a |
3587 | * framebuffer while holding mutex locks. | |
3588 | * | |
3589 | * Note that a real deadlock between fpriv->fbs_lock and the modeset | |
3590 | * locks is impossible here since no one else but this function can get | |
3591 | * at it any more. | |
3592 | */ | |
f453ba04 | 3593 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
2b677e8c DV |
3594 | |
3595 | mutex_lock(&dev->mode_config.fb_lock); | |
3596 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
3597 | __drm_framebuffer_unregister(dev, fb); | |
3598 | mutex_unlock(&dev->mode_config.fb_lock); | |
3599 | ||
4b096ac1 | 3600 | list_del_init(&fb->filp_head); |
2b677e8c DV |
3601 | |
3602 | /* This will also drop the fpriv->fbs reference. */ | |
f7eff60e | 3603 | drm_framebuffer_remove(fb); |
f453ba04 | 3604 | } |
f453ba04 DA |
3605 | } |
3606 | ||
c8e32cc1 DV |
3607 | /** |
3608 | * drm_property_create - create a new property type | |
3609 | * @dev: drm device | |
3610 | * @flags: flags specifying the property type | |
3611 | * @name: name of the property | |
3612 | * @num_values: number of pre-defined values | |
3613 | * | |
3614 | * This creates a new generic drm property which can then be attached to a drm | |
3615 | * object with drm_object_attach_property. The returned property object must be | |
3616 | * freed with drm_property_destroy. | |
3617 | * | |
3b5b9932 DL |
3618 | * Note that the DRM core keeps a per-device list of properties and that, if |
3619 | * drm_mode_config_cleanup() is called, it will destroy all properties created | |
3620 | * by the driver. | |
3621 | * | |
c8e32cc1 DV |
3622 | * Returns: |
3623 | * A pointer to the newly created property on success, NULL on failure. | |
3624 | */ | |
f453ba04 DA |
3625 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
3626 | const char *name, int num_values) | |
3627 | { | |
3628 | struct drm_property *property = NULL; | |
6bfc56aa | 3629 | int ret; |
f453ba04 DA |
3630 | |
3631 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); | |
3632 | if (!property) | |
3633 | return NULL; | |
3634 | ||
98f75de4 RC |
3635 | property->dev = dev; |
3636 | ||
f453ba04 | 3637 | if (num_values) { |
bd3f0ff9 TR |
3638 | property->values = kcalloc(num_values, sizeof(uint64_t), |
3639 | GFP_KERNEL); | |
f453ba04 DA |
3640 | if (!property->values) |
3641 | goto fail; | |
3642 | } | |
3643 | ||
6bfc56aa VS |
3644 | ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
3645 | if (ret) | |
3646 | goto fail; | |
3647 | ||
f453ba04 DA |
3648 | property->flags = flags; |
3649 | property->num_values = num_values; | |
3758b341 | 3650 | INIT_LIST_HEAD(&property->enum_list); |
f453ba04 | 3651 | |
471dd2ef | 3652 | if (name) { |
f453ba04 | 3653 | strncpy(property->name, name, DRM_PROP_NAME_LEN); |
471dd2ef VL |
3654 | property->name[DRM_PROP_NAME_LEN-1] = '\0'; |
3655 | } | |
f453ba04 DA |
3656 | |
3657 | list_add_tail(&property->head, &dev->mode_config.property_list); | |
5ea22f24 RC |
3658 | |
3659 | WARN_ON(!drm_property_type_valid(property)); | |
3660 | ||
f453ba04 DA |
3661 | return property; |
3662 | fail: | |
6bfc56aa | 3663 | kfree(property->values); |
f453ba04 DA |
3664 | kfree(property); |
3665 | return NULL; | |
3666 | } | |
3667 | EXPORT_SYMBOL(drm_property_create); | |
3668 | ||
c8e32cc1 | 3669 | /** |
2aa9d2bc | 3670 | * drm_property_create_enum - create a new enumeration property type |
c8e32cc1 DV |
3671 | * @dev: drm device |
3672 | * @flags: flags specifying the property type | |
3673 | * @name: name of the property | |
3674 | * @props: enumeration lists with property values | |
3675 | * @num_values: number of pre-defined values | |
3676 | * | |
3677 | * This creates a new generic drm property which can then be attached to a drm | |
3678 | * object with drm_object_attach_property. The returned property object must be | |
3679 | * freed with drm_property_destroy. | |
3680 | * | |
3681 | * Userspace is only allowed to set one of the predefined values for enumeration | |
3682 | * properties. | |
3683 | * | |
3684 | * Returns: | |
3685 | * A pointer to the newly created property on success, NULL on failure. | |
3686 | */ | |
4a67d391 SH |
3687 | struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
3688 | const char *name, | |
3689 | const struct drm_prop_enum_list *props, | |
3690 | int num_values) | |
3691 | { | |
3692 | struct drm_property *property; | |
3693 | int i, ret; | |
3694 | ||
3695 | flags |= DRM_MODE_PROP_ENUM; | |
3696 | ||
3697 | property = drm_property_create(dev, flags, name, num_values); | |
3698 | if (!property) | |
3699 | return NULL; | |
3700 | ||
3701 | for (i = 0; i < num_values; i++) { | |
3702 | ret = drm_property_add_enum(property, i, | |
3703 | props[i].type, | |
3704 | props[i].name); | |
3705 | if (ret) { | |
3706 | drm_property_destroy(dev, property); | |
3707 | return NULL; | |
3708 | } | |
3709 | } | |
3710 | ||
3711 | return property; | |
3712 | } | |
3713 | EXPORT_SYMBOL(drm_property_create_enum); | |
3714 | ||
c8e32cc1 | 3715 | /** |
2aa9d2bc | 3716 | * drm_property_create_bitmask - create a new bitmask property type |
c8e32cc1 DV |
3717 | * @dev: drm device |
3718 | * @flags: flags specifying the property type | |
3719 | * @name: name of the property | |
3720 | * @props: enumeration lists with property bitflags | |
295ee853 DV |
3721 | * @num_props: size of the @props array |
3722 | * @supported_bits: bitmask of all supported enumeration values | |
c8e32cc1 | 3723 | * |
295ee853 | 3724 | * This creates a new bitmask drm property which can then be attached to a drm |
c8e32cc1 DV |
3725 | * object with drm_object_attach_property. The returned property object must be |
3726 | * freed with drm_property_destroy. | |
3727 | * | |
3728 | * Compared to plain enumeration properties userspace is allowed to set any | |
3729 | * or'ed together combination of the predefined property bitflag values | |
3730 | * | |
3731 | * Returns: | |
3732 | * A pointer to the newly created property on success, NULL on failure. | |
3733 | */ | |
49e27545 RC |
3734 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
3735 | int flags, const char *name, | |
3736 | const struct drm_prop_enum_list *props, | |
7689ffb3 VS |
3737 | int num_props, |
3738 | uint64_t supported_bits) | |
49e27545 RC |
3739 | { |
3740 | struct drm_property *property; | |
7689ffb3 VS |
3741 | int i, ret, index = 0; |
3742 | int num_values = hweight64(supported_bits); | |
49e27545 RC |
3743 | |
3744 | flags |= DRM_MODE_PROP_BITMASK; | |
3745 | ||
3746 | property = drm_property_create(dev, flags, name, num_values); | |
3747 | if (!property) | |
3748 | return NULL; | |
7689ffb3 VS |
3749 | for (i = 0; i < num_props; i++) { |
3750 | if (!(supported_bits & (1ULL << props[i].type))) | |
3751 | continue; | |
49e27545 | 3752 | |
7689ffb3 VS |
3753 | if (WARN_ON(index >= num_values)) { |
3754 | drm_property_destroy(dev, property); | |
3755 | return NULL; | |
3756 | } | |
3757 | ||
3758 | ret = drm_property_add_enum(property, index++, | |
49e27545 RC |
3759 | props[i].type, |
3760 | props[i].name); | |
3761 | if (ret) { | |
3762 | drm_property_destroy(dev, property); | |
3763 | return NULL; | |
3764 | } | |
3765 | } | |
3766 | ||
3767 | return property; | |
3768 | } | |
3769 | EXPORT_SYMBOL(drm_property_create_bitmask); | |
3770 | ||
ebc44cf3 RC |
3771 | static struct drm_property *property_create_range(struct drm_device *dev, |
3772 | int flags, const char *name, | |
3773 | uint64_t min, uint64_t max) | |
3774 | { | |
3775 | struct drm_property *property; | |
3776 | ||
3777 | property = drm_property_create(dev, flags, name, 2); | |
3778 | if (!property) | |
3779 | return NULL; | |
3780 | ||
3781 | property->values[0] = min; | |
3782 | property->values[1] = max; | |
3783 | ||
3784 | return property; | |
3785 | } | |
3786 | ||
c8e32cc1 | 3787 | /** |
960cd9d4 | 3788 | * drm_property_create_range - create a new unsigned ranged property type |
c8e32cc1 DV |
3789 | * @dev: drm device |
3790 | * @flags: flags specifying the property type | |
3791 | * @name: name of the property | |
3792 | * @min: minimum value of the property | |
3793 | * @max: maximum value of the property | |
3794 | * | |
3795 | * This creates a new generic drm property which can then be attached to a drm | |
3796 | * object with drm_object_attach_property. The returned property object must be | |
3797 | * freed with drm_property_destroy. | |
3798 | * | |
960cd9d4 DV |
3799 | * Userspace is allowed to set any unsigned integer value in the (min, max) |
3800 | * range inclusive. | |
c8e32cc1 DV |
3801 | * |
3802 | * Returns: | |
3803 | * A pointer to the newly created property on success, NULL on failure. | |
3804 | */ | |
d9bc3c02 SH |
3805 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
3806 | const char *name, | |
3807 | uint64_t min, uint64_t max) | |
3808 | { | |
ebc44cf3 RC |
3809 | return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, |
3810 | name, min, max); | |
d9bc3c02 SH |
3811 | } |
3812 | EXPORT_SYMBOL(drm_property_create_range); | |
3813 | ||
960cd9d4 DV |
3814 | /** |
3815 | * drm_property_create_signed_range - create a new signed ranged property type | |
3816 | * @dev: drm device | |
3817 | * @flags: flags specifying the property type | |
3818 | * @name: name of the property | |
3819 | * @min: minimum value of the property | |
3820 | * @max: maximum value of the property | |
3821 | * | |
3822 | * This creates a new generic drm property which can then be attached to a drm | |
3823 | * object with drm_object_attach_property. The returned property object must be | |
3824 | * freed with drm_property_destroy. | |
3825 | * | |
3826 | * Userspace is allowed to set any signed integer value in the (min, max) | |
3827 | * range inclusive. | |
3828 | * | |
3829 | * Returns: | |
3830 | * A pointer to the newly created property on success, NULL on failure. | |
3831 | */ | |
ebc44cf3 RC |
3832 | struct drm_property *drm_property_create_signed_range(struct drm_device *dev, |
3833 | int flags, const char *name, | |
3834 | int64_t min, int64_t max) | |
3835 | { | |
3836 | return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, | |
3837 | name, I642U64(min), I642U64(max)); | |
3838 | } | |
3839 | EXPORT_SYMBOL(drm_property_create_signed_range); | |
3840 | ||
960cd9d4 DV |
3841 | /** |
3842 | * drm_property_create_object - create a new object property type | |
3843 | * @dev: drm device | |
3844 | * @flags: flags specifying the property type | |
3845 | * @name: name of the property | |
3846 | * @type: object type from DRM_MODE_OBJECT_* defines | |
3847 | * | |
3848 | * This creates a new generic drm property which can then be attached to a drm | |
3849 | * object with drm_object_attach_property. The returned property object must be | |
3850 | * freed with drm_property_destroy. | |
3851 | * | |
3852 | * Userspace is only allowed to set this to any property value of the given | |
3853 | * @type. Only useful for atomic properties, which is enforced. | |
3854 | * | |
3855 | * Returns: | |
3856 | * A pointer to the newly created property on success, NULL on failure. | |
3857 | */ | |
98f75de4 RC |
3858 | struct drm_property *drm_property_create_object(struct drm_device *dev, |
3859 | int flags, const char *name, uint32_t type) | |
3860 | { | |
3861 | struct drm_property *property; | |
3862 | ||
3863 | flags |= DRM_MODE_PROP_OBJECT; | |
3864 | ||
960cd9d4 DV |
3865 | if (WARN_ON(!(flags & DRM_MODE_PROP_ATOMIC))) |
3866 | return NULL; | |
3867 | ||
98f75de4 RC |
3868 | property = drm_property_create(dev, flags, name, 1); |
3869 | if (!property) | |
3870 | return NULL; | |
3871 | ||
3872 | property->values[0] = type; | |
3873 | ||
3874 | return property; | |
3875 | } | |
3876 | EXPORT_SYMBOL(drm_property_create_object); | |
3877 | ||
960cd9d4 DV |
3878 | /** |
3879 | * drm_property_create_bool - create a new boolean property type | |
3880 | * @dev: drm device | |
3881 | * @flags: flags specifying the property type | |
3882 | * @name: name of the property | |
3883 | * | |
3884 | * This creates a new generic drm property which can then be attached to a drm | |
3885 | * object with drm_object_attach_property. The returned property object must be | |
3886 | * freed with drm_property_destroy. | |
3887 | * | |
3888 | * This is implemented as a ranged property with only {0, 1} as valid values. | |
3889 | * | |
3890 | * Returns: | |
3891 | * A pointer to the newly created property on success, NULL on failure. | |
3892 | */ | |
3893 | struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags, | |
3894 | const char *name) | |
3895 | { | |
3896 | return drm_property_create_range(dev, flags, name, 0, 1); | |
3897 | } | |
3898 | EXPORT_SYMBOL(drm_property_create_bool); | |
3899 | ||
c8e32cc1 DV |
3900 | /** |
3901 | * drm_property_add_enum - add a possible value to an enumeration property | |
3902 | * @property: enumeration property to change | |
3903 | * @index: index of the new enumeration | |
3904 | * @value: value of the new enumeration | |
3905 | * @name: symbolic name of the new enumeration | |
3906 | * | |
3907 | * This functions adds enumerations to a property. | |
3908 | * | |
3909 | * It's use is deprecated, drivers should use one of the more specific helpers | |
3910 | * to directly create the property with all enumerations already attached. | |
3911 | * | |
3912 | * Returns: | |
3913 | * Zero on success, error code on failure. | |
3914 | */ | |
f453ba04 DA |
3915 | int drm_property_add_enum(struct drm_property *property, int index, |
3916 | uint64_t value, const char *name) | |
3917 | { | |
3918 | struct drm_property_enum *prop_enum; | |
3919 | ||
5ea22f24 RC |
3920 | if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3921 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) | |
49e27545 RC |
3922 | return -EINVAL; |
3923 | ||
3924 | /* | |
3925 | * Bitmask enum properties have the additional constraint of values | |
3926 | * from 0 to 63 | |
3927 | */ | |
5ea22f24 RC |
3928 | if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && |
3929 | (value > 63)) | |
f453ba04 DA |
3930 | return -EINVAL; |
3931 | ||
3758b341 DV |
3932 | if (!list_empty(&property->enum_list)) { |
3933 | list_for_each_entry(prop_enum, &property->enum_list, head) { | |
f453ba04 DA |
3934 | if (prop_enum->value == value) { |
3935 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3936 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3937 | return 0; | |
3938 | } | |
3939 | } | |
3940 | } | |
3941 | ||
3942 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); | |
3943 | if (!prop_enum) | |
3944 | return -ENOMEM; | |
3945 | ||
3946 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3947 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3948 | prop_enum->value = value; | |
3949 | ||
3950 | property->values[index] = value; | |
3758b341 | 3951 | list_add_tail(&prop_enum->head, &property->enum_list); |
f453ba04 DA |
3952 | return 0; |
3953 | } | |
3954 | EXPORT_SYMBOL(drm_property_add_enum); | |
3955 | ||
c8e32cc1 DV |
3956 | /** |
3957 | * drm_property_destroy - destroy a drm property | |
3958 | * @dev: drm device | |
3959 | * @property: property to destry | |
3960 | * | |
3961 | * This function frees a property including any attached resources like | |
3962 | * enumeration values. | |
3963 | */ | |
f453ba04 DA |
3964 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) |
3965 | { | |
3966 | struct drm_property_enum *prop_enum, *pt; | |
3967 | ||
3758b341 | 3968 | list_for_each_entry_safe(prop_enum, pt, &property->enum_list, head) { |
f453ba04 DA |
3969 | list_del(&prop_enum->head); |
3970 | kfree(prop_enum); | |
3971 | } | |
3972 | ||
3973 | if (property->num_values) | |
3974 | kfree(property->values); | |
3975 | drm_mode_object_put(dev, &property->base); | |
3976 | list_del(&property->head); | |
3977 | kfree(property); | |
3978 | } | |
3979 | EXPORT_SYMBOL(drm_property_destroy); | |
3980 | ||
c8e32cc1 DV |
3981 | /** |
3982 | * drm_object_attach_property - attach a property to a modeset object | |
3983 | * @obj: drm modeset object | |
3984 | * @property: property to attach | |
3985 | * @init_val: initial value of the property | |
3986 | * | |
3987 | * This attaches the given property to the modeset object with the given initial | |
3988 | * value. Currently this function cannot fail since the properties are stored in | |
3989 | * a statically sized array. | |
3990 | */ | |
c543188a PZ |
3991 | void drm_object_attach_property(struct drm_mode_object *obj, |
3992 | struct drm_property *property, | |
3993 | uint64_t init_val) | |
3994 | { | |
7f88a9be | 3995 | int count = obj->properties->count; |
c543188a | 3996 | |
7f88a9be PZ |
3997 | if (count == DRM_OBJECT_MAX_PROPERTY) { |
3998 | WARN(1, "Failed to attach object property (type: 0x%x). Please " | |
3999 | "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " | |
4000 | "you see this message on the same object type.\n", | |
4001 | obj->type); | |
4002 | return; | |
c543188a PZ |
4003 | } |
4004 | ||
b17cd757 | 4005 | obj->properties->properties[count] = property; |
7f88a9be PZ |
4006 | obj->properties->values[count] = init_val; |
4007 | obj->properties->count++; | |
88a48e29 RC |
4008 | if (property->flags & DRM_MODE_PROP_ATOMIC) |
4009 | obj->properties->atomic_count++; | |
c543188a PZ |
4010 | } |
4011 | EXPORT_SYMBOL(drm_object_attach_property); | |
4012 | ||
c8e32cc1 DV |
4013 | /** |
4014 | * drm_object_property_set_value - set the value of a property | |
4015 | * @obj: drm mode object to set property value for | |
4016 | * @property: property to set | |
4017 | * @val: value the property should be set to | |
4018 | * | |
4019 | * This functions sets a given property on a given object. This function only | |
4020 | * changes the software state of the property, it does not call into the | |
4021 | * driver's ->set_property callback. | |
4022 | * | |
4023 | * Returns: | |
4024 | * Zero on success, error code on failure. | |
4025 | */ | |
c543188a PZ |
4026 | int drm_object_property_set_value(struct drm_mode_object *obj, |
4027 | struct drm_property *property, uint64_t val) | |
4028 | { | |
4029 | int i; | |
4030 | ||
7f88a9be | 4031 | for (i = 0; i < obj->properties->count; i++) { |
b17cd757 | 4032 | if (obj->properties->properties[i] == property) { |
c543188a PZ |
4033 | obj->properties->values[i] = val; |
4034 | return 0; | |
4035 | } | |
4036 | } | |
4037 | ||
4038 | return -EINVAL; | |
4039 | } | |
4040 | EXPORT_SYMBOL(drm_object_property_set_value); | |
4041 | ||
c8e32cc1 DV |
4042 | /** |
4043 | * drm_object_property_get_value - retrieve the value of a property | |
4044 | * @obj: drm mode object to get property value from | |
4045 | * @property: property to retrieve | |
4046 | * @val: storage for the property value | |
4047 | * | |
4048 | * This function retrieves the softare state of the given property for the given | |
4049 | * property. Since there is no driver callback to retrieve the current property | |
4050 | * value this might be out of sync with the hardware, depending upon the driver | |
4051 | * and property. | |
4052 | * | |
4053 | * Returns: | |
4054 | * Zero on success, error code on failure. | |
4055 | */ | |
c543188a PZ |
4056 | int drm_object_property_get_value(struct drm_mode_object *obj, |
4057 | struct drm_property *property, uint64_t *val) | |
4058 | { | |
4059 | int i; | |
4060 | ||
88a48e29 RC |
4061 | /* read-only properties bypass atomic mechanism and still store |
4062 | * their value in obj->properties->values[].. mostly to avoid | |
4063 | * having to deal w/ EDID and similar props in atomic paths: | |
4064 | */ | |
4065 | if (drm_core_check_feature(property->dev, DRIVER_ATOMIC) && | |
4066 | !(property->flags & DRM_MODE_PROP_IMMUTABLE)) | |
4067 | return drm_atomic_get_property(obj, property, val); | |
4068 | ||
7f88a9be | 4069 | for (i = 0; i < obj->properties->count; i++) { |
b17cd757 | 4070 | if (obj->properties->properties[i] == property) { |
c543188a PZ |
4071 | *val = obj->properties->values[i]; |
4072 | return 0; | |
4073 | } | |
4074 | } | |
4075 | ||
4076 | return -EINVAL; | |
4077 | } | |
4078 | EXPORT_SYMBOL(drm_object_property_get_value); | |
4079 | ||
c8e32cc1 | 4080 | /** |
1a498633 | 4081 | * drm_mode_getproperty_ioctl - get the property metadata |
c8e32cc1 DV |
4082 | * @dev: DRM device |
4083 | * @data: ioctl data | |
4084 | * @file_priv: DRM file info | |
4085 | * | |
1a498633 DV |
4086 | * This function retrieves the metadata for a given property, like the different |
4087 | * possible values for an enum property or the limits for a range property. | |
4088 | * | |
4089 | * Blob properties are special | |
c8e32cc1 DV |
4090 | * |
4091 | * Called by the user via ioctl. | |
4092 | * | |
4093 | * Returns: | |
1a498633 | 4094 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4095 | */ |
f453ba04 DA |
4096 | int drm_mode_getproperty_ioctl(struct drm_device *dev, |
4097 | void *data, struct drm_file *file_priv) | |
4098 | { | |
f453ba04 DA |
4099 | struct drm_mode_get_property *out_resp = data; |
4100 | struct drm_property *property; | |
4101 | int enum_count = 0; | |
f453ba04 DA |
4102 | int value_count = 0; |
4103 | int ret = 0, i; | |
4104 | int copied; | |
4105 | struct drm_property_enum *prop_enum; | |
4106 | struct drm_mode_property_enum __user *enum_ptr; | |
f453ba04 | 4107 | uint64_t __user *values_ptr; |
f453ba04 | 4108 | |
fb3b06c8 DA |
4109 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4110 | return -EINVAL; | |
4111 | ||
84849903 | 4112 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4113 | property = drm_property_find(dev, out_resp->prop_id); |
4114 | if (!property) { | |
f27657f2 | 4115 | ret = -ENOENT; |
f453ba04 DA |
4116 | goto done; |
4117 | } | |
f453ba04 | 4118 | |
5ea22f24 RC |
4119 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
4120 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
3758b341 | 4121 | list_for_each_entry(prop_enum, &property->enum_list, head) |
f453ba04 | 4122 | enum_count++; |
f453ba04 DA |
4123 | } |
4124 | ||
4125 | value_count = property->num_values; | |
4126 | ||
4127 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); | |
4128 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; | |
4129 | out_resp->flags = property->flags; | |
4130 | ||
4131 | if ((out_resp->count_values >= value_count) && value_count) { | |
81f6c7f8 | 4132 | values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; |
f453ba04 DA |
4133 | for (i = 0; i < value_count; i++) { |
4134 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { | |
4135 | ret = -EFAULT; | |
4136 | goto done; | |
4137 | } | |
4138 | } | |
4139 | } | |
4140 | out_resp->count_values = value_count; | |
4141 | ||
5ea22f24 RC |
4142 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
4143 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
f453ba04 DA |
4144 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
4145 | copied = 0; | |
81f6c7f8 | 4146 | enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; |
3758b341 | 4147 | list_for_each_entry(prop_enum, &property->enum_list, head) { |
f453ba04 DA |
4148 | |
4149 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { | |
4150 | ret = -EFAULT; | |
4151 | goto done; | |
4152 | } | |
4153 | ||
4154 | if (copy_to_user(&enum_ptr[copied].name, | |
4155 | &prop_enum->name, DRM_PROP_NAME_LEN)) { | |
4156 | ret = -EFAULT; | |
4157 | goto done; | |
4158 | } | |
4159 | copied++; | |
4160 | } | |
4161 | } | |
4162 | out_resp->count_enum_blobs = enum_count; | |
4163 | } | |
4164 | ||
3758b341 DV |
4165 | /* |
4166 | * NOTE: The idea seems to have been to use this to read all the blob | |
4167 | * property values. But nothing ever added them to the corresponding | |
4168 | * list, userspace always used the special-purpose get_blob ioctl to | |
4169 | * read the value for a blob property. It also doesn't make a lot of | |
4170 | * sense to return values here when everything else is just metadata for | |
4171 | * the property itself. | |
4172 | */ | |
4173 | if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) | |
4174 | out_resp->count_enum_blobs = 0; | |
f453ba04 | 4175 | done: |
84849903 | 4176 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4177 | return ret; |
4178 | } | |
4179 | ||
ecbbe59b TR |
4180 | static struct drm_property_blob * |
4181 | drm_property_create_blob(struct drm_device *dev, size_t length, | |
12e6cecd | 4182 | const void *data) |
f453ba04 DA |
4183 | { |
4184 | struct drm_property_blob *blob; | |
6bfc56aa | 4185 | int ret; |
f453ba04 DA |
4186 | |
4187 | if (!length || !data) | |
4188 | return NULL; | |
4189 | ||
4190 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); | |
4191 | if (!blob) | |
4192 | return NULL; | |
4193 | ||
6bfc56aa VS |
4194 | ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); |
4195 | if (ret) { | |
4196 | kfree(blob); | |
4197 | return NULL; | |
4198 | } | |
4199 | ||
f453ba04 DA |
4200 | blob->length = length; |
4201 | ||
4202 | memcpy(blob->data, data, length); | |
4203 | ||
f453ba04 DA |
4204 | list_add_tail(&blob->head, &dev->mode_config.property_blob_list); |
4205 | return blob; | |
4206 | } | |
4207 | ||
4208 | static void drm_property_destroy_blob(struct drm_device *dev, | |
4209 | struct drm_property_blob *blob) | |
4210 | { | |
4211 | drm_mode_object_put(dev, &blob->base); | |
4212 | list_del(&blob->head); | |
4213 | kfree(blob); | |
4214 | } | |
4215 | ||
c8e32cc1 DV |
4216 | /** |
4217 | * drm_mode_getblob_ioctl - get the contents of a blob property value | |
4218 | * @dev: DRM device | |
4219 | * @data: ioctl data | |
4220 | * @file_priv: DRM file info | |
4221 | * | |
4222 | * This function retrieves the contents of a blob property. The value stored in | |
4223 | * an object's blob property is just a normal modeset object id. | |
4224 | * | |
4225 | * Called by the user via ioctl. | |
4226 | * | |
4227 | * Returns: | |
1a498633 | 4228 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4229 | */ |
f453ba04 DA |
4230 | int drm_mode_getblob_ioctl(struct drm_device *dev, |
4231 | void *data, struct drm_file *file_priv) | |
4232 | { | |
f453ba04 DA |
4233 | struct drm_mode_get_blob *out_resp = data; |
4234 | struct drm_property_blob *blob; | |
4235 | int ret = 0; | |
81f6c7f8 | 4236 | void __user *blob_ptr; |
f453ba04 | 4237 | |
fb3b06c8 DA |
4238 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4239 | return -EINVAL; | |
4240 | ||
84849903 | 4241 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4242 | blob = drm_property_blob_find(dev, out_resp->blob_id); |
4243 | if (!blob) { | |
f27657f2 | 4244 | ret = -ENOENT; |
f453ba04 DA |
4245 | goto done; |
4246 | } | |
f453ba04 DA |
4247 | |
4248 | if (out_resp->length == blob->length) { | |
81f6c7f8 | 4249 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
4dfd909f | 4250 | if (copy_to_user(blob_ptr, blob->data, blob->length)) { |
f453ba04 DA |
4251 | ret = -EFAULT; |
4252 | goto done; | |
4253 | } | |
4254 | } | |
4255 | out_resp->length = blob->length; | |
4256 | ||
4257 | done: | |
84849903 | 4258 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4259 | return ret; |
4260 | } | |
4261 | ||
cc7096fb DA |
4262 | /** |
4263 | * drm_mode_connector_set_path_property - set tile property on connector | |
4264 | * @connector: connector to set property on. | |
4265 | * @path: path to use for property. | |
4266 | * | |
4267 | * This creates a property to expose to userspace to specify a | |
4268 | * connector path. This is mainly used for DisplayPort MST where | |
4269 | * connectors have a topology and we want to allow userspace to give | |
4270 | * them more meaningful names. | |
4271 | * | |
4272 | * Returns: | |
1a498633 | 4273 | * Zero on success, negative errno on failure. |
cc7096fb | 4274 | */ |
43aba7eb | 4275 | int drm_mode_connector_set_path_property(struct drm_connector *connector, |
12e6cecd | 4276 | const char *path) |
43aba7eb DA |
4277 | { |
4278 | struct drm_device *dev = connector->dev; | |
ecbbe59b TR |
4279 | size_t size = strlen(path) + 1; |
4280 | int ret; | |
43aba7eb DA |
4281 | |
4282 | connector->path_blob_ptr = drm_property_create_blob(connector->dev, | |
4283 | size, path); | |
4284 | if (!connector->path_blob_ptr) | |
4285 | return -EINVAL; | |
4286 | ||
4287 | ret = drm_object_property_set_value(&connector->base, | |
4288 | dev->mode_config.path_property, | |
4289 | connector->path_blob_ptr->base.id); | |
4290 | return ret; | |
4291 | } | |
4292 | EXPORT_SYMBOL(drm_mode_connector_set_path_property); | |
4293 | ||
6f134d7b DA |
4294 | /** |
4295 | * drm_mode_connector_set_tile_property - set tile property on connector | |
4296 | * @connector: connector to set property on. | |
4297 | * | |
4298 | * This looks up the tile information for a connector, and creates a | |
4299 | * property for userspace to parse if it exists. The property is of | |
4300 | * the form of 8 integers using ':' as a separator. | |
4301 | * | |
4302 | * Returns: | |
4303 | * Zero on success, errno on failure. | |
4304 | */ | |
4305 | int drm_mode_connector_set_tile_property(struct drm_connector *connector) | |
4306 | { | |
4307 | struct drm_device *dev = connector->dev; | |
4308 | int ret, size; | |
4309 | char tile[256]; | |
4310 | ||
4311 | if (connector->tile_blob_ptr) | |
4312 | drm_property_destroy_blob(dev, connector->tile_blob_ptr); | |
4313 | ||
4314 | if (!connector->has_tile) { | |
4315 | connector->tile_blob_ptr = NULL; | |
4316 | ret = drm_object_property_set_value(&connector->base, | |
4317 | dev->mode_config.tile_property, 0); | |
4318 | return ret; | |
4319 | } | |
4320 | ||
4321 | snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d", | |
4322 | connector->tile_group->id, connector->tile_is_single_monitor, | |
4323 | connector->num_h_tile, connector->num_v_tile, | |
4324 | connector->tile_h_loc, connector->tile_v_loc, | |
4325 | connector->tile_h_size, connector->tile_v_size); | |
4326 | size = strlen(tile) + 1; | |
4327 | ||
4328 | connector->tile_blob_ptr = drm_property_create_blob(connector->dev, | |
4329 | size, tile); | |
4330 | if (!connector->tile_blob_ptr) | |
4331 | return -EINVAL; | |
4332 | ||
4333 | ret = drm_object_property_set_value(&connector->base, | |
4334 | dev->mode_config.tile_property, | |
4335 | connector->tile_blob_ptr->base.id); | |
4336 | return ret; | |
4337 | } | |
4338 | EXPORT_SYMBOL(drm_mode_connector_set_tile_property); | |
4339 | ||
c8e32cc1 DV |
4340 | /** |
4341 | * drm_mode_connector_update_edid_property - update the edid property of a connector | |
4342 | * @connector: drm connector | |
4343 | * @edid: new value of the edid property | |
4344 | * | |
4345 | * This function creates a new blob modeset object and assigns its id to the | |
4346 | * connector's edid property. | |
4347 | * | |
4348 | * Returns: | |
1a498633 | 4349 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4350 | */ |
f453ba04 | 4351 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
12e6cecd | 4352 | const struct edid *edid) |
f453ba04 DA |
4353 | { |
4354 | struct drm_device *dev = connector->dev; | |
ecbbe59b TR |
4355 | size_t size; |
4356 | int ret; | |
f453ba04 | 4357 | |
4cf2b281 TW |
4358 | /* ignore requests to set edid when overridden */ |
4359 | if (connector->override_edid) | |
4360 | return 0; | |
4361 | ||
f453ba04 DA |
4362 | if (connector->edid_blob_ptr) |
4363 | drm_property_destroy_blob(dev, connector->edid_blob_ptr); | |
4364 | ||
4365 | /* Delete edid, when there is none. */ | |
4366 | if (!edid) { | |
4367 | connector->edid_blob_ptr = NULL; | |
58495563 | 4368 | ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0); |
f453ba04 DA |
4369 | return ret; |
4370 | } | |
4371 | ||
7466f4cc AJ |
4372 | size = EDID_LENGTH * (1 + edid->extensions); |
4373 | connector->edid_blob_ptr = drm_property_create_blob(connector->dev, | |
4374 | size, edid); | |
e655d122 SK |
4375 | if (!connector->edid_blob_ptr) |
4376 | return -EINVAL; | |
f453ba04 | 4377 | |
58495563 | 4378 | ret = drm_object_property_set_value(&connector->base, |
f453ba04 DA |
4379 | dev->mode_config.edid_property, |
4380 | connector->edid_blob_ptr->base.id); | |
4381 | ||
4382 | return ret; | |
4383 | } | |
4384 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); | |
4385 | ||
3843e71f RC |
4386 | /* Some properties could refer to dynamic refcnt'd objects, or things that |
4387 | * need special locking to handle lifetime issues (ie. to ensure the prop | |
4388 | * value doesn't become invalid part way through the property update due to | |
4389 | * race). The value returned by reference via 'obj' should be passed back | |
4390 | * to drm_property_change_valid_put() after the property is set (and the | |
4391 | * object to which the property is attached has a chance to take it's own | |
4392 | * reference). | |
4393 | */ | |
d34f20d6 | 4394 | bool drm_property_change_valid_get(struct drm_property *property, |
3843e71f | 4395 | uint64_t value, struct drm_mode_object **ref) |
26a34815 | 4396 | { |
2ca651d1 TR |
4397 | int i; |
4398 | ||
26a34815 PZ |
4399 | if (property->flags & DRM_MODE_PROP_IMMUTABLE) |
4400 | return false; | |
5ea22f24 | 4401 | |
3843e71f RC |
4402 | *ref = NULL; |
4403 | ||
5ea22f24 | 4404 | if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) { |
26a34815 PZ |
4405 | if (value < property->values[0] || value > property->values[1]) |
4406 | return false; | |
4407 | return true; | |
ebc44cf3 RC |
4408 | } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) { |
4409 | int64_t svalue = U642I64(value); | |
4dfd909f | 4410 | |
ebc44cf3 RC |
4411 | if (svalue < U642I64(property->values[0]) || |
4412 | svalue > U642I64(property->values[1])) | |
4413 | return false; | |
4414 | return true; | |
5ea22f24 | 4415 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
592c20ee | 4416 | uint64_t valid_mask = 0; |
4dfd909f | 4417 | |
49e27545 RC |
4418 | for (i = 0; i < property->num_values; i++) |
4419 | valid_mask |= (1ULL << property->values[i]); | |
4420 | return !(value & ~valid_mask); | |
5ea22f24 | 4421 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
c4a56750 VS |
4422 | /* Only the driver knows */ |
4423 | return true; | |
98f75de4 | 4424 | } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { |
98f75de4 RC |
4425 | /* a zero value for an object property translates to null: */ |
4426 | if (value == 0) | |
4427 | return true; | |
3843e71f RC |
4428 | |
4429 | /* handle refcnt'd objects specially: */ | |
4430 | if (property->values[0] == DRM_MODE_OBJECT_FB) { | |
4431 | struct drm_framebuffer *fb; | |
4432 | fb = drm_framebuffer_lookup(property->dev, value); | |
4433 | if (fb) { | |
4434 | *ref = &fb->base; | |
4435 | return true; | |
4436 | } else { | |
4437 | return false; | |
4438 | } | |
4439 | } else { | |
4440 | return _object_find(property->dev, value, property->values[0]) != NULL; | |
4441 | } | |
26a34815 | 4442 | } |
2ca651d1 TR |
4443 | |
4444 | for (i = 0; i < property->num_values; i++) | |
4445 | if (property->values[i] == value) | |
4446 | return true; | |
4447 | return false; | |
26a34815 PZ |
4448 | } |
4449 | ||
d34f20d6 | 4450 | void drm_property_change_valid_put(struct drm_property *property, |
3843e71f RC |
4451 | struct drm_mode_object *ref) |
4452 | { | |
4453 | if (!ref) | |
4454 | return; | |
4455 | ||
4456 | if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { | |
4457 | if (property->values[0] == DRM_MODE_OBJECT_FB) | |
4458 | drm_framebuffer_unreference(obj_to_fb(ref)); | |
4459 | } | |
4460 | } | |
4461 | ||
c8e32cc1 DV |
4462 | /** |
4463 | * drm_mode_connector_property_set_ioctl - set the current value of a connector property | |
4464 | * @dev: DRM device | |
4465 | * @data: ioctl data | |
4466 | * @file_priv: DRM file info | |
4467 | * | |
4468 | * This function sets the current value for a connectors's property. It also | |
4469 | * calls into a driver's ->set_property callback to update the hardware state | |
4470 | * | |
4471 | * Called by the user via ioctl. | |
4472 | * | |
4473 | * Returns: | |
1a498633 | 4474 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4475 | */ |
f453ba04 DA |
4476 | int drm_mode_connector_property_set_ioctl(struct drm_device *dev, |
4477 | void *data, struct drm_file *file_priv) | |
4478 | { | |
0057d8dd PZ |
4479 | struct drm_mode_connector_set_property *conn_set_prop = data; |
4480 | struct drm_mode_obj_set_property obj_set_prop = { | |
4481 | .value = conn_set_prop->value, | |
4482 | .prop_id = conn_set_prop->prop_id, | |
4483 | .obj_id = conn_set_prop->connector_id, | |
4484 | .obj_type = DRM_MODE_OBJECT_CONNECTOR | |
4485 | }; | |
fb3b06c8 | 4486 | |
0057d8dd PZ |
4487 | /* It does all the locking and checking we need */ |
4488 | return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); | |
f453ba04 DA |
4489 | } |
4490 | ||
c543188a PZ |
4491 | static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, |
4492 | struct drm_property *property, | |
4493 | uint64_t value) | |
4494 | { | |
4495 | int ret = -EINVAL; | |
4496 | struct drm_connector *connector = obj_to_connector(obj); | |
4497 | ||
4498 | /* Do DPMS ourselves */ | |
4499 | if (property == connector->dev->mode_config.dpms_property) { | |
4500 | if (connector->funcs->dpms) | |
4501 | (*connector->funcs->dpms)(connector, (int)value); | |
4502 | ret = 0; | |
4503 | } else if (connector->funcs->set_property) | |
4504 | ret = connector->funcs->set_property(connector, property, value); | |
4505 | ||
4506 | /* store the property value if successful */ | |
4507 | if (!ret) | |
58495563 | 4508 | drm_object_property_set_value(&connector->base, property, value); |
c543188a PZ |
4509 | return ret; |
4510 | } | |
4511 | ||
bffd9de0 PZ |
4512 | static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
4513 | struct drm_property *property, | |
4514 | uint64_t value) | |
4515 | { | |
4516 | int ret = -EINVAL; | |
4517 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
4518 | ||
4519 | if (crtc->funcs->set_property) | |
4520 | ret = crtc->funcs->set_property(crtc, property, value); | |
4521 | if (!ret) | |
4522 | drm_object_property_set_value(obj, property, value); | |
4523 | ||
4524 | return ret; | |
4525 | } | |
4526 | ||
3a5f87c2 TW |
4527 | /** |
4528 | * drm_mode_plane_set_obj_prop - set the value of a property | |
4529 | * @plane: drm plane object to set property value for | |
4530 | * @property: property to set | |
4531 | * @value: value the property should be set to | |
4532 | * | |
4533 | * This functions sets a given property on a given plane object. This function | |
4534 | * calls the driver's ->set_property callback and changes the software state of | |
4535 | * the property if the callback succeeds. | |
4536 | * | |
4537 | * Returns: | |
4538 | * Zero on success, error code on failure. | |
4539 | */ | |
4540 | int drm_mode_plane_set_obj_prop(struct drm_plane *plane, | |
4541 | struct drm_property *property, | |
4542 | uint64_t value) | |
4d93914a RC |
4543 | { |
4544 | int ret = -EINVAL; | |
3a5f87c2 | 4545 | struct drm_mode_object *obj = &plane->base; |
4d93914a RC |
4546 | |
4547 | if (plane->funcs->set_property) | |
4548 | ret = plane->funcs->set_property(plane, property, value); | |
4549 | if (!ret) | |
4550 | drm_object_property_set_value(obj, property, value); | |
4551 | ||
4552 | return ret; | |
4553 | } | |
3a5f87c2 | 4554 | EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); |
4d93914a | 4555 | |
c8e32cc1 | 4556 | /** |
1a498633 | 4557 | * drm_mode_obj_get_properties_ioctl - get the current value of a object's property |
c8e32cc1 DV |
4558 | * @dev: DRM device |
4559 | * @data: ioctl data | |
4560 | * @file_priv: DRM file info | |
4561 | * | |
4562 | * This function retrieves the current value for an object's property. Compared | |
4563 | * to the connector specific ioctl this one is extended to also work on crtc and | |
4564 | * plane objects. | |
4565 | * | |
4566 | * Called by the user via ioctl. | |
4567 | * | |
4568 | * Returns: | |
1a498633 | 4569 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4570 | */ |
c543188a PZ |
4571 | int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
4572 | struct drm_file *file_priv) | |
4573 | { | |
4574 | struct drm_mode_obj_get_properties *arg = data; | |
4575 | struct drm_mode_object *obj; | |
4576 | int ret = 0; | |
c543188a PZ |
4577 | |
4578 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4579 | return -EINVAL; | |
4580 | ||
84849903 | 4581 | drm_modeset_lock_all(dev); |
c543188a PZ |
4582 | |
4583 | obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
4584 | if (!obj) { | |
f27657f2 | 4585 | ret = -ENOENT; |
c543188a PZ |
4586 | goto out; |
4587 | } | |
4588 | if (!obj->properties) { | |
4589 | ret = -EINVAL; | |
4590 | goto out; | |
4591 | } | |
4592 | ||
88a48e29 | 4593 | ret = get_properties(obj, file_priv->atomic, |
95cbf110 RC |
4594 | (uint32_t __user *)(unsigned long)(arg->props_ptr), |
4595 | (uint64_t __user *)(unsigned long)(arg->prop_values_ptr), | |
4596 | &arg->count_props); | |
c543188a | 4597 | |
c543188a | 4598 | out: |
84849903 | 4599 | drm_modeset_unlock_all(dev); |
c543188a PZ |
4600 | return ret; |
4601 | } | |
4602 | ||
c8e32cc1 DV |
4603 | /** |
4604 | * drm_mode_obj_set_property_ioctl - set the current value of an object's property | |
4605 | * @dev: DRM device | |
4606 | * @data: ioctl data | |
4607 | * @file_priv: DRM file info | |
4608 | * | |
4609 | * This function sets the current value for an object's property. It also calls | |
4610 | * into a driver's ->set_property callback to update the hardware state. | |
4611 | * Compared to the connector specific ioctl this one is extended to also work on | |
4612 | * crtc and plane objects. | |
4613 | * | |
4614 | * Called by the user via ioctl. | |
4615 | * | |
4616 | * Returns: | |
1a498633 | 4617 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4618 | */ |
c543188a PZ |
4619 | int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, |
4620 | struct drm_file *file_priv) | |
4621 | { | |
4622 | struct drm_mode_obj_set_property *arg = data; | |
4623 | struct drm_mode_object *arg_obj; | |
4624 | struct drm_mode_object *prop_obj; | |
4625 | struct drm_property *property; | |
3843e71f RC |
4626 | int i, ret = -EINVAL; |
4627 | struct drm_mode_object *ref; | |
c543188a PZ |
4628 | |
4629 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4630 | return -EINVAL; | |
4631 | ||
84849903 | 4632 | drm_modeset_lock_all(dev); |
c543188a PZ |
4633 | |
4634 | arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
f27657f2 VS |
4635 | if (!arg_obj) { |
4636 | ret = -ENOENT; | |
c543188a | 4637 | goto out; |
f27657f2 | 4638 | } |
c543188a PZ |
4639 | if (!arg_obj->properties) |
4640 | goto out; | |
4641 | ||
7f88a9be | 4642 | for (i = 0; i < arg_obj->properties->count; i++) |
b17cd757 | 4643 | if (arg_obj->properties->properties[i]->base.id == arg->prop_id) |
c543188a PZ |
4644 | break; |
4645 | ||
7f88a9be | 4646 | if (i == arg_obj->properties->count) |
c543188a PZ |
4647 | goto out; |
4648 | ||
4649 | prop_obj = drm_mode_object_find(dev, arg->prop_id, | |
4650 | DRM_MODE_OBJECT_PROPERTY); | |
f27657f2 VS |
4651 | if (!prop_obj) { |
4652 | ret = -ENOENT; | |
c543188a | 4653 | goto out; |
f27657f2 | 4654 | } |
c543188a PZ |
4655 | property = obj_to_property(prop_obj); |
4656 | ||
3843e71f | 4657 | if (!drm_property_change_valid_get(property, arg->value, &ref)) |
c543188a PZ |
4658 | goto out; |
4659 | ||
4660 | switch (arg_obj->type) { | |
4661 | case DRM_MODE_OBJECT_CONNECTOR: | |
4662 | ret = drm_mode_connector_set_obj_prop(arg_obj, property, | |
4663 | arg->value); | |
4664 | break; | |
bffd9de0 PZ |
4665 | case DRM_MODE_OBJECT_CRTC: |
4666 | ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); | |
4667 | break; | |
4d93914a | 4668 | case DRM_MODE_OBJECT_PLANE: |
3a5f87c2 TW |
4669 | ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj), |
4670 | property, arg->value); | |
4d93914a | 4671 | break; |
c543188a PZ |
4672 | } |
4673 | ||
3843e71f RC |
4674 | drm_property_change_valid_put(property, ref); |
4675 | ||
c543188a | 4676 | out: |
84849903 | 4677 | drm_modeset_unlock_all(dev); |
c543188a PZ |
4678 | return ret; |
4679 | } | |
4680 | ||
c8e32cc1 DV |
4681 | /** |
4682 | * drm_mode_connector_attach_encoder - attach a connector to an encoder | |
4683 | * @connector: connector to attach | |
4684 | * @encoder: encoder to attach @connector to | |
4685 | * | |
4686 | * This function links up a connector to an encoder. Note that the routing | |
4687 | * restrictions between encoders and crtcs are exposed to userspace through the | |
4688 | * possible_clones and possible_crtcs bitmasks. | |
4689 | * | |
4690 | * Returns: | |
1a498633 | 4691 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4692 | */ |
f453ba04 DA |
4693 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
4694 | struct drm_encoder *encoder) | |
4695 | { | |
4696 | int i; | |
4697 | ||
4698 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
4699 | if (connector->encoder_ids[i] == 0) { | |
4700 | connector->encoder_ids[i] = encoder->base.id; | |
4701 | return 0; | |
4702 | } | |
4703 | } | |
4704 | return -ENOMEM; | |
4705 | } | |
4706 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); | |
4707 | ||
c8e32cc1 DV |
4708 | /** |
4709 | * drm_mode_crtc_set_gamma_size - set the gamma table size | |
4710 | * @crtc: CRTC to set the gamma table size for | |
4711 | * @gamma_size: size of the gamma table | |
4712 | * | |
4713 | * Drivers which support gamma tables should set this to the supported gamma | |
4714 | * table size when initializing the CRTC. Currently the drm core only supports a | |
4715 | * fixed gamma table size. | |
4716 | * | |
4717 | * Returns: | |
1a498633 | 4718 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4719 | */ |
4cae5b84 | 4720 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
c8e32cc1 | 4721 | int gamma_size) |
f453ba04 DA |
4722 | { |
4723 | crtc->gamma_size = gamma_size; | |
4724 | ||
bd3f0ff9 TR |
4725 | crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3, |
4726 | GFP_KERNEL); | |
f453ba04 DA |
4727 | if (!crtc->gamma_store) { |
4728 | crtc->gamma_size = 0; | |
4cae5b84 | 4729 | return -ENOMEM; |
f453ba04 DA |
4730 | } |
4731 | ||
4cae5b84 | 4732 | return 0; |
f453ba04 DA |
4733 | } |
4734 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); | |
4735 | ||
c8e32cc1 DV |
4736 | /** |
4737 | * drm_mode_gamma_set_ioctl - set the gamma table | |
4738 | * @dev: DRM device | |
4739 | * @data: ioctl data | |
4740 | * @file_priv: DRM file info | |
4741 | * | |
4742 | * Set the gamma table of a CRTC to the one passed in by the user. Userspace can | |
4743 | * inquire the required gamma table size through drm_mode_gamma_get_ioctl. | |
4744 | * | |
4745 | * Called by the user via ioctl. | |
4746 | * | |
4747 | * Returns: | |
1a498633 | 4748 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4749 | */ |
f453ba04 DA |
4750 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
4751 | void *data, struct drm_file *file_priv) | |
4752 | { | |
4753 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
4754 | struct drm_crtc *crtc; |
4755 | void *r_base, *g_base, *b_base; | |
4756 | int size; | |
4757 | int ret = 0; | |
4758 | ||
fb3b06c8 DA |
4759 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4760 | return -EINVAL; | |
4761 | ||
84849903 | 4762 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4763 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
4764 | if (!crtc) { | |
f27657f2 | 4765 | ret = -ENOENT; |
f453ba04 DA |
4766 | goto out; |
4767 | } | |
f453ba04 | 4768 | |
ebe0f244 LP |
4769 | if (crtc->funcs->gamma_set == NULL) { |
4770 | ret = -ENOSYS; | |
4771 | goto out; | |
4772 | } | |
4773 | ||
f453ba04 DA |
4774 | /* memcpy into gamma store */ |
4775 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
4776 | ret = -EINVAL; | |
4777 | goto out; | |
4778 | } | |
4779 | ||
4780 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
4781 | r_base = crtc->gamma_store; | |
4782 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { | |
4783 | ret = -EFAULT; | |
4784 | goto out; | |
4785 | } | |
4786 | ||
4787 | g_base = r_base + size; | |
4788 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { | |
4789 | ret = -EFAULT; | |
4790 | goto out; | |
4791 | } | |
4792 | ||
4793 | b_base = g_base + size; | |
4794 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { | |
4795 | ret = -EFAULT; | |
4796 | goto out; | |
4797 | } | |
4798 | ||
7203425a | 4799 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
f453ba04 DA |
4800 | |
4801 | out: | |
84849903 | 4802 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4803 | return ret; |
4804 | ||
4805 | } | |
4806 | ||
c8e32cc1 DV |
4807 | /** |
4808 | * drm_mode_gamma_get_ioctl - get the gamma table | |
4809 | * @dev: DRM device | |
4810 | * @data: ioctl data | |
4811 | * @file_priv: DRM file info | |
4812 | * | |
4813 | * Copy the current gamma table into the storage provided. This also provides | |
4814 | * the gamma table size the driver expects, which can be used to size the | |
4815 | * allocated storage. | |
4816 | * | |
4817 | * Called by the user via ioctl. | |
4818 | * | |
4819 | * Returns: | |
1a498633 | 4820 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4821 | */ |
f453ba04 DA |
4822 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
4823 | void *data, struct drm_file *file_priv) | |
4824 | { | |
4825 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
4826 | struct drm_crtc *crtc; |
4827 | void *r_base, *g_base, *b_base; | |
4828 | int size; | |
4829 | int ret = 0; | |
4830 | ||
fb3b06c8 DA |
4831 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4832 | return -EINVAL; | |
4833 | ||
84849903 | 4834 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4835 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
4836 | if (!crtc) { | |
f27657f2 | 4837 | ret = -ENOENT; |
f453ba04 DA |
4838 | goto out; |
4839 | } | |
f453ba04 DA |
4840 | |
4841 | /* memcpy into gamma store */ | |
4842 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
4843 | ret = -EINVAL; | |
4844 | goto out; | |
4845 | } | |
4846 | ||
4847 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
4848 | r_base = crtc->gamma_store; | |
4849 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { | |
4850 | ret = -EFAULT; | |
4851 | goto out; | |
4852 | } | |
4853 | ||
4854 | g_base = r_base + size; | |
4855 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { | |
4856 | ret = -EFAULT; | |
4857 | goto out; | |
4858 | } | |
4859 | ||
4860 | b_base = g_base + size; | |
4861 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { | |
4862 | ret = -EFAULT; | |
4863 | goto out; | |
4864 | } | |
4865 | out: | |
84849903 | 4866 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4867 | return ret; |
4868 | } | |
d91d8a3f | 4869 | |
c8e32cc1 DV |
4870 | /** |
4871 | * drm_mode_page_flip_ioctl - schedule an asynchronous fb update | |
4872 | * @dev: DRM device | |
4873 | * @data: ioctl data | |
4874 | * @file_priv: DRM file info | |
4875 | * | |
4876 | * This schedules an asynchronous update on a given CRTC, called page flip. | |
4877 | * Optionally a drm event is generated to signal the completion of the event. | |
4878 | * Generic drivers cannot assume that a pageflip with changed framebuffer | |
4879 | * properties (including driver specific metadata like tiling layout) will work, | |
4880 | * but some drivers support e.g. pixel format changes through the pageflip | |
4881 | * ioctl. | |
4882 | * | |
4883 | * Called by the user via ioctl. | |
4884 | * | |
4885 | * Returns: | |
1a498633 | 4886 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4887 | */ |
d91d8a3f KH |
4888 | int drm_mode_page_flip_ioctl(struct drm_device *dev, |
4889 | void *data, struct drm_file *file_priv) | |
4890 | { | |
4891 | struct drm_mode_crtc_page_flip *page_flip = data; | |
d91d8a3f | 4892 | struct drm_crtc *crtc; |
3d30a59b | 4893 | struct drm_framebuffer *fb = NULL; |
d91d8a3f KH |
4894 | struct drm_pending_vblank_event *e = NULL; |
4895 | unsigned long flags; | |
4896 | int ret = -EINVAL; | |
4897 | ||
4898 | if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || | |
4899 | page_flip->reserved != 0) | |
4900 | return -EINVAL; | |
4901 | ||
62f2104f KP |
4902 | if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) |
4903 | return -EINVAL; | |
4904 | ||
a2b34e22 RC |
4905 | crtc = drm_crtc_find(dev, page_flip->crtc_id); |
4906 | if (!crtc) | |
f27657f2 | 4907 | return -ENOENT; |
d91d8a3f | 4908 | |
4d02e2de | 4909 | drm_modeset_lock_crtc(crtc, crtc->primary); |
f4510a27 | 4910 | if (crtc->primary->fb == NULL) { |
90c1efdd CW |
4911 | /* The framebuffer is currently unbound, presumably |
4912 | * due to a hotplug event, that userspace has not | |
4913 | * yet discovered. | |
4914 | */ | |
4915 | ret = -EBUSY; | |
4916 | goto out; | |
4917 | } | |
4918 | ||
d91d8a3f KH |
4919 | if (crtc->funcs->page_flip == NULL) |
4920 | goto out; | |
4921 | ||
786b99ed | 4922 | fb = drm_framebuffer_lookup(dev, page_flip->fb_id); |
37c4e705 VS |
4923 | if (!fb) { |
4924 | ret = -ENOENT; | |
d91d8a3f | 4925 | goto out; |
37c4e705 | 4926 | } |
d91d8a3f | 4927 | |
c11e9283 DL |
4928 | ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); |
4929 | if (ret) | |
5f61bb42 | 4930 | goto out; |
5f61bb42 | 4931 | |
f4510a27 | 4932 | if (crtc->primary->fb->pixel_format != fb->pixel_format) { |
909d9cda LP |
4933 | DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); |
4934 | ret = -EINVAL; | |
4935 | goto out; | |
4936 | } | |
4937 | ||
d91d8a3f KH |
4938 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
4939 | ret = -ENOMEM; | |
4940 | spin_lock_irqsave(&dev->event_lock, flags); | |
f76511b9 | 4941 | if (file_priv->event_space < sizeof(e->event)) { |
d91d8a3f KH |
4942 | spin_unlock_irqrestore(&dev->event_lock, flags); |
4943 | goto out; | |
4944 | } | |
f76511b9 | 4945 | file_priv->event_space -= sizeof(e->event); |
d91d8a3f KH |
4946 | spin_unlock_irqrestore(&dev->event_lock, flags); |
4947 | ||
f76511b9 | 4948 | e = kzalloc(sizeof(*e), GFP_KERNEL); |
d91d8a3f KH |
4949 | if (e == NULL) { |
4950 | spin_lock_irqsave(&dev->event_lock, flags); | |
f76511b9 | 4951 | file_priv->event_space += sizeof(e->event); |
d91d8a3f KH |
4952 | spin_unlock_irqrestore(&dev->event_lock, flags); |
4953 | goto out; | |
4954 | } | |
4955 | ||
7bd4d7be | 4956 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; |
f76511b9 | 4957 | e->event.base.length = sizeof(e->event); |
d91d8a3f KH |
4958 | e->event.user_data = page_flip->user_data; |
4959 | e->base.event = &e->event.base; | |
4960 | e->base.file_priv = file_priv; | |
4961 | e->base.destroy = | |
4962 | (void (*) (struct drm_pending_event *)) kfree; | |
4963 | } | |
4964 | ||
3d30a59b | 4965 | crtc->primary->old_fb = crtc->primary->fb; |
ed8d1975 | 4966 | ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); |
d91d8a3f | 4967 | if (ret) { |
aef6a7ee JS |
4968 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
4969 | spin_lock_irqsave(&dev->event_lock, flags); | |
f76511b9 | 4970 | file_priv->event_space += sizeof(e->event); |
aef6a7ee JS |
4971 | spin_unlock_irqrestore(&dev->event_lock, flags); |
4972 | kfree(e); | |
4973 | } | |
b0d12325 | 4974 | /* Keep the old fb, don't unref it. */ |
3d30a59b | 4975 | crtc->primary->old_fb = NULL; |
b0d12325 | 4976 | } else { |
8cf1e981 TR |
4977 | /* |
4978 | * Warn if the driver hasn't properly updated the crtc->fb | |
4979 | * field to reflect that the new framebuffer is now used. | |
4980 | * Failing to do so will screw with the reference counting | |
4981 | * on framebuffers. | |
4982 | */ | |
f4510a27 | 4983 | WARN_ON(crtc->primary->fb != fb); |
b0d12325 DV |
4984 | /* Unref only the old framebuffer. */ |
4985 | fb = NULL; | |
d91d8a3f KH |
4986 | } |
4987 | ||
4988 | out: | |
b0d12325 DV |
4989 | if (fb) |
4990 | drm_framebuffer_unreference(fb); | |
3d30a59b DV |
4991 | if (crtc->primary->old_fb) |
4992 | drm_framebuffer_unreference(crtc->primary->old_fb); | |
4993 | crtc->primary->old_fb = NULL; | |
d059f652 | 4994 | drm_modeset_unlock_crtc(crtc); |
b4d5e7d1 | 4995 | |
d91d8a3f KH |
4996 | return ret; |
4997 | } | |
eb033556 | 4998 | |
c8e32cc1 DV |
4999 | /** |
5000 | * drm_mode_config_reset - call ->reset callbacks | |
5001 | * @dev: drm device | |
5002 | * | |
5003 | * This functions calls all the crtc's, encoder's and connector's ->reset | |
5004 | * callback. Drivers can use this in e.g. their driver load or resume code to | |
5005 | * reset hardware and software state. | |
5006 | */ | |
eb033556 CW |
5007 | void drm_mode_config_reset(struct drm_device *dev) |
5008 | { | |
5009 | struct drm_crtc *crtc; | |
2a0d7cfd | 5010 | struct drm_plane *plane; |
eb033556 CW |
5011 | struct drm_encoder *encoder; |
5012 | struct drm_connector *connector; | |
5013 | ||
2a0d7cfd DV |
5014 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) |
5015 | if (plane->funcs->reset) | |
5016 | plane->funcs->reset(plane); | |
5017 | ||
eb033556 CW |
5018 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) |
5019 | if (crtc->funcs->reset) | |
5020 | crtc->funcs->reset(crtc); | |
5021 | ||
5022 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
5023 | if (encoder->funcs->reset) | |
5024 | encoder->funcs->reset(encoder); | |
5025 | ||
5e2cb2f6 DV |
5026 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
5027 | connector->status = connector_status_unknown; | |
5028 | ||
eb033556 CW |
5029 | if (connector->funcs->reset) |
5030 | connector->funcs->reset(connector); | |
5e2cb2f6 | 5031 | } |
eb033556 CW |
5032 | } |
5033 | EXPORT_SYMBOL(drm_mode_config_reset); | |
ff72145b | 5034 | |
c8e32cc1 DV |
5035 | /** |
5036 | * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer | |
5037 | * @dev: DRM device | |
5038 | * @data: ioctl data | |
5039 | * @file_priv: DRM file info | |
5040 | * | |
5041 | * This creates a new dumb buffer in the driver's backing storage manager (GEM, | |
5042 | * TTM or something else entirely) and returns the resulting buffer handle. This | |
5043 | * handle can then be wrapped up into a framebuffer modeset object. | |
5044 | * | |
5045 | * Note that userspace is not allowed to use such objects for render | |
5046 | * acceleration - drivers must create their own private ioctls for such a use | |
5047 | * case. | |
5048 | * | |
5049 | * Called by the user via ioctl. | |
5050 | * | |
5051 | * Returns: | |
1a498633 | 5052 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5053 | */ |
ff72145b DA |
5054 | int drm_mode_create_dumb_ioctl(struct drm_device *dev, |
5055 | void *data, struct drm_file *file_priv) | |
5056 | { | |
5057 | struct drm_mode_create_dumb *args = data; | |
b28cd41f | 5058 | u32 cpp, stride, size; |
ff72145b DA |
5059 | |
5060 | if (!dev->driver->dumb_create) | |
5061 | return -ENOSYS; | |
b28cd41f DH |
5062 | if (!args->width || !args->height || !args->bpp) |
5063 | return -EINVAL; | |
5064 | ||
5065 | /* overflow checks for 32bit size calculations */ | |
00e72089 | 5066 | /* NOTE: DIV_ROUND_UP() can overflow */ |
b28cd41f | 5067 | cpp = DIV_ROUND_UP(args->bpp, 8); |
00e72089 | 5068 | if (!cpp || cpp > 0xffffffffU / args->width) |
b28cd41f DH |
5069 | return -EINVAL; |
5070 | stride = cpp * args->width; | |
5071 | if (args->height > 0xffffffffU / stride) | |
5072 | return -EINVAL; | |
5073 | ||
5074 | /* test for wrap-around */ | |
5075 | size = args->height * stride; | |
5076 | if (PAGE_ALIGN(size) == 0) | |
5077 | return -EINVAL; | |
5078 | ||
f6085952 TR |
5079 | /* |
5080 | * handle, pitch and size are output parameters. Zero them out to | |
5081 | * prevent drivers from accidentally using uninitialized data. Since | |
5082 | * not all existing userspace is clearing these fields properly we | |
5083 | * cannot reject IOCTL with garbage in them. | |
5084 | */ | |
5085 | args->handle = 0; | |
5086 | args->pitch = 0; | |
5087 | args->size = 0; | |
5088 | ||
ff72145b DA |
5089 | return dev->driver->dumb_create(file_priv, dev, args); |
5090 | } | |
5091 | ||
c8e32cc1 DV |
5092 | /** |
5093 | * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer | |
5094 | * @dev: DRM device | |
5095 | * @data: ioctl data | |
5096 | * @file_priv: DRM file info | |
5097 | * | |
5098 | * Allocate an offset in the drm device node's address space to be able to | |
5099 | * memory map a dumb buffer. | |
5100 | * | |
5101 | * Called by the user via ioctl. | |
5102 | * | |
5103 | * Returns: | |
1a498633 | 5104 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5105 | */ |
ff72145b DA |
5106 | int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, |
5107 | void *data, struct drm_file *file_priv) | |
5108 | { | |
5109 | struct drm_mode_map_dumb *args = data; | |
5110 | ||
5111 | /* call driver ioctl to get mmap offset */ | |
5112 | if (!dev->driver->dumb_map_offset) | |
5113 | return -ENOSYS; | |
5114 | ||
5115 | return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); | |
5116 | } | |
5117 | ||
c8e32cc1 DV |
5118 | /** |
5119 | * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer | |
5120 | * @dev: DRM device | |
5121 | * @data: ioctl data | |
5122 | * @file_priv: DRM file info | |
5123 | * | |
5124 | * This destroys the userspace handle for the given dumb backing storage buffer. | |
5125 | * Since buffer objects must be reference counted in the kernel a buffer object | |
5126 | * won't be immediately freed if a framebuffer modeset object still uses it. | |
5127 | * | |
5128 | * Called by the user via ioctl. | |
5129 | * | |
5130 | * Returns: | |
1a498633 | 5131 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5132 | */ |
ff72145b DA |
5133 | int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, |
5134 | void *data, struct drm_file *file_priv) | |
5135 | { | |
5136 | struct drm_mode_destroy_dumb *args = data; | |
5137 | ||
5138 | if (!dev->driver->dumb_destroy) | |
5139 | return -ENOSYS; | |
5140 | ||
5141 | return dev->driver->dumb_destroy(file_priv, dev, args->handle); | |
5142 | } | |
248dbc23 | 5143 | |
c8e32cc1 DV |
5144 | /** |
5145 | * drm_fb_get_bpp_depth - get the bpp/depth values for format | |
5146 | * @format: pixel format (DRM_FORMAT_*) | |
5147 | * @depth: storage for the depth value | |
5148 | * @bpp: storage for the bpp value | |
5149 | * | |
5150 | * This only supports RGB formats here for compat with code that doesn't use | |
5151 | * pixel formats directly yet. | |
248dbc23 DA |
5152 | */ |
5153 | void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, | |
5154 | int *bpp) | |
5155 | { | |
5156 | switch (format) { | |
c51a6bc5 | 5157 | case DRM_FORMAT_C8: |
04b3924d VS |
5158 | case DRM_FORMAT_RGB332: |
5159 | case DRM_FORMAT_BGR233: | |
248dbc23 DA |
5160 | *depth = 8; |
5161 | *bpp = 8; | |
5162 | break; | |
04b3924d VS |
5163 | case DRM_FORMAT_XRGB1555: |
5164 | case DRM_FORMAT_XBGR1555: | |
5165 | case DRM_FORMAT_RGBX5551: | |
5166 | case DRM_FORMAT_BGRX5551: | |
5167 | case DRM_FORMAT_ARGB1555: | |
5168 | case DRM_FORMAT_ABGR1555: | |
5169 | case DRM_FORMAT_RGBA5551: | |
5170 | case DRM_FORMAT_BGRA5551: | |
248dbc23 DA |
5171 | *depth = 15; |
5172 | *bpp = 16; | |
5173 | break; | |
04b3924d VS |
5174 | case DRM_FORMAT_RGB565: |
5175 | case DRM_FORMAT_BGR565: | |
248dbc23 DA |
5176 | *depth = 16; |
5177 | *bpp = 16; | |
5178 | break; | |
04b3924d VS |
5179 | case DRM_FORMAT_RGB888: |
5180 | case DRM_FORMAT_BGR888: | |
5181 | *depth = 24; | |
5182 | *bpp = 24; | |
5183 | break; | |
5184 | case DRM_FORMAT_XRGB8888: | |
5185 | case DRM_FORMAT_XBGR8888: | |
5186 | case DRM_FORMAT_RGBX8888: | |
5187 | case DRM_FORMAT_BGRX8888: | |
248dbc23 DA |
5188 | *depth = 24; |
5189 | *bpp = 32; | |
5190 | break; | |
04b3924d VS |
5191 | case DRM_FORMAT_XRGB2101010: |
5192 | case DRM_FORMAT_XBGR2101010: | |
5193 | case DRM_FORMAT_RGBX1010102: | |
5194 | case DRM_FORMAT_BGRX1010102: | |
5195 | case DRM_FORMAT_ARGB2101010: | |
5196 | case DRM_FORMAT_ABGR2101010: | |
5197 | case DRM_FORMAT_RGBA1010102: | |
5198 | case DRM_FORMAT_BGRA1010102: | |
248dbc23 DA |
5199 | *depth = 30; |
5200 | *bpp = 32; | |
5201 | break; | |
04b3924d VS |
5202 | case DRM_FORMAT_ARGB8888: |
5203 | case DRM_FORMAT_ABGR8888: | |
5204 | case DRM_FORMAT_RGBA8888: | |
5205 | case DRM_FORMAT_BGRA8888: | |
248dbc23 DA |
5206 | *depth = 32; |
5207 | *bpp = 32; | |
5208 | break; | |
5209 | default: | |
23c453a4 VS |
5210 | DRM_DEBUG_KMS("unsupported pixel format %s\n", |
5211 | drm_get_format_name(format)); | |
248dbc23 DA |
5212 | *depth = 0; |
5213 | *bpp = 0; | |
5214 | break; | |
5215 | } | |
5216 | } | |
5217 | EXPORT_SYMBOL(drm_fb_get_bpp_depth); | |
141670e9 VS |
5218 | |
5219 | /** | |
5220 | * drm_format_num_planes - get the number of planes for format | |
5221 | * @format: pixel format (DRM_FORMAT_*) | |
5222 | * | |
c8e32cc1 | 5223 | * Returns: |
141670e9 VS |
5224 | * The number of planes used by the specified pixel format. |
5225 | */ | |
5226 | int drm_format_num_planes(uint32_t format) | |
5227 | { | |
5228 | switch (format) { | |
5229 | case DRM_FORMAT_YUV410: | |
5230 | case DRM_FORMAT_YVU410: | |
5231 | case DRM_FORMAT_YUV411: | |
5232 | case DRM_FORMAT_YVU411: | |
5233 | case DRM_FORMAT_YUV420: | |
5234 | case DRM_FORMAT_YVU420: | |
5235 | case DRM_FORMAT_YUV422: | |
5236 | case DRM_FORMAT_YVU422: | |
5237 | case DRM_FORMAT_YUV444: | |
5238 | case DRM_FORMAT_YVU444: | |
5239 | return 3; | |
5240 | case DRM_FORMAT_NV12: | |
5241 | case DRM_FORMAT_NV21: | |
5242 | case DRM_FORMAT_NV16: | |
5243 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
5244 | case DRM_FORMAT_NV24: |
5245 | case DRM_FORMAT_NV42: | |
141670e9 VS |
5246 | return 2; |
5247 | default: | |
5248 | return 1; | |
5249 | } | |
5250 | } | |
5251 | EXPORT_SYMBOL(drm_format_num_planes); | |
5a86bd55 VS |
5252 | |
5253 | /** | |
5254 | * drm_format_plane_cpp - determine the bytes per pixel value | |
5255 | * @format: pixel format (DRM_FORMAT_*) | |
5256 | * @plane: plane index | |
5257 | * | |
c8e32cc1 | 5258 | * Returns: |
5a86bd55 VS |
5259 | * The bytes per pixel value for the specified plane. |
5260 | */ | |
5261 | int drm_format_plane_cpp(uint32_t format, int plane) | |
5262 | { | |
5263 | unsigned int depth; | |
5264 | int bpp; | |
5265 | ||
5266 | if (plane >= drm_format_num_planes(format)) | |
5267 | return 0; | |
5268 | ||
5269 | switch (format) { | |
5270 | case DRM_FORMAT_YUYV: | |
5271 | case DRM_FORMAT_YVYU: | |
5272 | case DRM_FORMAT_UYVY: | |
5273 | case DRM_FORMAT_VYUY: | |
5274 | return 2; | |
5275 | case DRM_FORMAT_NV12: | |
5276 | case DRM_FORMAT_NV21: | |
5277 | case DRM_FORMAT_NV16: | |
5278 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
5279 | case DRM_FORMAT_NV24: |
5280 | case DRM_FORMAT_NV42: | |
5a86bd55 VS |
5281 | return plane ? 2 : 1; |
5282 | case DRM_FORMAT_YUV410: | |
5283 | case DRM_FORMAT_YVU410: | |
5284 | case DRM_FORMAT_YUV411: | |
5285 | case DRM_FORMAT_YVU411: | |
5286 | case DRM_FORMAT_YUV420: | |
5287 | case DRM_FORMAT_YVU420: | |
5288 | case DRM_FORMAT_YUV422: | |
5289 | case DRM_FORMAT_YVU422: | |
5290 | case DRM_FORMAT_YUV444: | |
5291 | case DRM_FORMAT_YVU444: | |
5292 | return 1; | |
5293 | default: | |
5294 | drm_fb_get_bpp_depth(format, &depth, &bpp); | |
5295 | return bpp >> 3; | |
5296 | } | |
5297 | } | |
5298 | EXPORT_SYMBOL(drm_format_plane_cpp); | |
01b68b04 VS |
5299 | |
5300 | /** | |
5301 | * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor | |
5302 | * @format: pixel format (DRM_FORMAT_*) | |
5303 | * | |
c8e32cc1 | 5304 | * Returns: |
01b68b04 VS |
5305 | * The horizontal chroma subsampling factor for the |
5306 | * specified pixel format. | |
5307 | */ | |
5308 | int drm_format_horz_chroma_subsampling(uint32_t format) | |
5309 | { | |
5310 | switch (format) { | |
5311 | case DRM_FORMAT_YUV411: | |
5312 | case DRM_FORMAT_YVU411: | |
5313 | case DRM_FORMAT_YUV410: | |
5314 | case DRM_FORMAT_YVU410: | |
5315 | return 4; | |
5316 | case DRM_FORMAT_YUYV: | |
5317 | case DRM_FORMAT_YVYU: | |
5318 | case DRM_FORMAT_UYVY: | |
5319 | case DRM_FORMAT_VYUY: | |
5320 | case DRM_FORMAT_NV12: | |
5321 | case DRM_FORMAT_NV21: | |
5322 | case DRM_FORMAT_NV16: | |
5323 | case DRM_FORMAT_NV61: | |
5324 | case DRM_FORMAT_YUV422: | |
5325 | case DRM_FORMAT_YVU422: | |
5326 | case DRM_FORMAT_YUV420: | |
5327 | case DRM_FORMAT_YVU420: | |
5328 | return 2; | |
5329 | default: | |
5330 | return 1; | |
5331 | } | |
5332 | } | |
5333 | EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); | |
5334 | ||
5335 | /** | |
5336 | * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor | |
5337 | * @format: pixel format (DRM_FORMAT_*) | |
5338 | * | |
c8e32cc1 | 5339 | * Returns: |
01b68b04 VS |
5340 | * The vertical chroma subsampling factor for the |
5341 | * specified pixel format. | |
5342 | */ | |
5343 | int drm_format_vert_chroma_subsampling(uint32_t format) | |
5344 | { | |
5345 | switch (format) { | |
5346 | case DRM_FORMAT_YUV410: | |
5347 | case DRM_FORMAT_YVU410: | |
5348 | return 4; | |
5349 | case DRM_FORMAT_YUV420: | |
5350 | case DRM_FORMAT_YVU420: | |
5351 | case DRM_FORMAT_NV12: | |
5352 | case DRM_FORMAT_NV21: | |
5353 | return 2; | |
5354 | default: | |
5355 | return 1; | |
5356 | } | |
5357 | } | |
5358 | EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); | |
87d24fc3 | 5359 | |
3c9855f6 VS |
5360 | /** |
5361 | * drm_rotation_simplify() - Try to simplify the rotation | |
5362 | * @rotation: Rotation to be simplified | |
5363 | * @supported_rotations: Supported rotations | |
5364 | * | |
5365 | * Attempt to simplify the rotation to a form that is supported. | |
5366 | * Eg. if the hardware supports everything except DRM_REFLECT_X | |
5367 | * one could call this function like this: | |
5368 | * | |
5369 | * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) | | |
5370 | * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) | | |
5371 | * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y)); | |
5372 | * | |
5373 | * to eliminate the DRM_ROTATE_X flag. Depending on what kind of | |
5374 | * transforms the hardware supports, this function may not | |
5375 | * be able to produce a supported transform, so the caller should | |
5376 | * check the result afterwards. | |
5377 | */ | |
5378 | unsigned int drm_rotation_simplify(unsigned int rotation, | |
5379 | unsigned int supported_rotations) | |
5380 | { | |
5381 | if (rotation & ~supported_rotations) { | |
5382 | rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y); | |
5383 | rotation = (rotation & ~0xf) | BIT((ffs(rotation & 0xf) + 1) % 4); | |
5384 | } | |
5385 | ||
5386 | return rotation; | |
5387 | } | |
5388 | EXPORT_SYMBOL(drm_rotation_simplify); | |
5389 | ||
87d24fc3 LP |
5390 | /** |
5391 | * drm_mode_config_init - initialize DRM mode_configuration structure | |
5392 | * @dev: DRM device | |
5393 | * | |
5394 | * Initialize @dev's mode_config structure, used for tracking the graphics | |
5395 | * configuration of @dev. | |
5396 | * | |
5397 | * Since this initializes the modeset locks, no locking is possible. Which is no | |
5398 | * problem, since this should happen single threaded at init time. It is the | |
5399 | * driver's problem to ensure this guarantee. | |
5400 | * | |
5401 | */ | |
5402 | void drm_mode_config_init(struct drm_device *dev) | |
5403 | { | |
5404 | mutex_init(&dev->mode_config.mutex); | |
51fd371b | 5405 | drm_modeset_lock_init(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
5406 | mutex_init(&dev->mode_config.idr_mutex); |
5407 | mutex_init(&dev->mode_config.fb_lock); | |
5408 | INIT_LIST_HEAD(&dev->mode_config.fb_list); | |
5409 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); | |
5410 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
5411 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); | |
5412 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
5413 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
5414 | INIT_LIST_HEAD(&dev->mode_config.plane_list); | |
5415 | idr_init(&dev->mode_config.crtc_idr); | |
138f9ebb | 5416 | idr_init(&dev->mode_config.tile_idr); |
87d24fc3 LP |
5417 | |
5418 | drm_modeset_lock_all(dev); | |
6b4959f4 | 5419 | drm_mode_create_standard_properties(dev); |
87d24fc3 LP |
5420 | drm_modeset_unlock_all(dev); |
5421 | ||
5422 | /* Just to be sure */ | |
5423 | dev->mode_config.num_fb = 0; | |
5424 | dev->mode_config.num_connector = 0; | |
5425 | dev->mode_config.num_crtc = 0; | |
5426 | dev->mode_config.num_encoder = 0; | |
e27dde3e MR |
5427 | dev->mode_config.num_overlay_plane = 0; |
5428 | dev->mode_config.num_total_plane = 0; | |
87d24fc3 LP |
5429 | } |
5430 | EXPORT_SYMBOL(drm_mode_config_init); | |
5431 | ||
5432 | /** | |
5433 | * drm_mode_config_cleanup - free up DRM mode_config info | |
5434 | * @dev: DRM device | |
5435 | * | |
5436 | * Free up all the connectors and CRTCs associated with this DRM device, then | |
5437 | * free up the framebuffers and associated buffer objects. | |
5438 | * | |
5439 | * Note that since this /should/ happen single-threaded at driver/device | |
5440 | * teardown time, no locking is required. It's the driver's job to ensure that | |
5441 | * this guarantee actually holds true. | |
5442 | * | |
5443 | * FIXME: cleanup any dangling user buffer objects too | |
5444 | */ | |
5445 | void drm_mode_config_cleanup(struct drm_device *dev) | |
5446 | { | |
5447 | struct drm_connector *connector, *ot; | |
5448 | struct drm_crtc *crtc, *ct; | |
5449 | struct drm_encoder *encoder, *enct; | |
5450 | struct drm_framebuffer *fb, *fbt; | |
5451 | struct drm_property *property, *pt; | |
5452 | struct drm_property_blob *blob, *bt; | |
5453 | struct drm_plane *plane, *plt; | |
5454 | ||
5455 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
5456 | head) { | |
5457 | encoder->funcs->destroy(encoder); | |
5458 | } | |
5459 | ||
5460 | list_for_each_entry_safe(connector, ot, | |
5461 | &dev->mode_config.connector_list, head) { | |
5462 | connector->funcs->destroy(connector); | |
5463 | } | |
5464 | ||
5465 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
5466 | head) { | |
5467 | drm_property_destroy(dev, property); | |
5468 | } | |
5469 | ||
5470 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, | |
5471 | head) { | |
5472 | drm_property_destroy_blob(dev, blob); | |
5473 | } | |
5474 | ||
5475 | /* | |
5476 | * Single-threaded teardown context, so it's not required to grab the | |
5477 | * fb_lock to protect against concurrent fb_list access. Contrary, it | |
5478 | * would actually deadlock with the drm_framebuffer_cleanup function. | |
5479 | * | |
5480 | * Also, if there are any framebuffers left, that's a driver leak now, | |
5481 | * so politely WARN about this. | |
5482 | */ | |
5483 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); | |
5484 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { | |
5485 | drm_framebuffer_remove(fb); | |
5486 | } | |
5487 | ||
5488 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, | |
5489 | head) { | |
5490 | plane->funcs->destroy(plane); | |
5491 | } | |
5492 | ||
5493 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { | |
5494 | crtc->funcs->destroy(crtc); | |
5495 | } | |
5496 | ||
138f9ebb | 5497 | idr_destroy(&dev->mode_config.tile_idr); |
87d24fc3 | 5498 | idr_destroy(&dev->mode_config.crtc_idr); |
51fd371b | 5499 | drm_modeset_lock_fini(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
5500 | } |
5501 | EXPORT_SYMBOL(drm_mode_config_cleanup); | |
c1df5f3c VS |
5502 | |
5503 | struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, | |
5504 | unsigned int supported_rotations) | |
5505 | { | |
5506 | static const struct drm_prop_enum_list props[] = { | |
5507 | { DRM_ROTATE_0, "rotate-0" }, | |
5508 | { DRM_ROTATE_90, "rotate-90" }, | |
5509 | { DRM_ROTATE_180, "rotate-180" }, | |
5510 | { DRM_ROTATE_270, "rotate-270" }, | |
5511 | { DRM_REFLECT_X, "reflect-x" }, | |
5512 | { DRM_REFLECT_Y, "reflect-y" }, | |
5513 | }; | |
5514 | ||
5515 | return drm_property_create_bitmask(dev, 0, "rotation", | |
5516 | props, ARRAY_SIZE(props), | |
5517 | supported_rotations); | |
5518 | } | |
5519 | EXPORT_SYMBOL(drm_mode_create_rotation_property); | |
138f9ebb DA |
5520 | |
5521 | /** | |
5522 | * DOC: Tile group | |
5523 | * | |
5524 | * Tile groups are used to represent tiled monitors with a unique | |
5525 | * integer identifier. Tiled monitors using DisplayID v1.3 have | |
5526 | * a unique 8-byte handle, we store this in a tile group, so we | |
5527 | * have a common identifier for all tiles in a monitor group. | |
5528 | */ | |
5529 | static void drm_tile_group_free(struct kref *kref) | |
5530 | { | |
5531 | struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount); | |
5532 | struct drm_device *dev = tg->dev; | |
5533 | mutex_lock(&dev->mode_config.idr_mutex); | |
5534 | idr_remove(&dev->mode_config.tile_idr, tg->id); | |
5535 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5536 | kfree(tg); | |
5537 | } | |
5538 | ||
5539 | /** | |
5540 | * drm_mode_put_tile_group - drop a reference to a tile group. | |
5541 | * @dev: DRM device | |
5542 | * @tg: tile group to drop reference to. | |
5543 | * | |
5544 | * drop reference to tile group and free if 0. | |
5545 | */ | |
5546 | void drm_mode_put_tile_group(struct drm_device *dev, | |
5547 | struct drm_tile_group *tg) | |
5548 | { | |
5549 | kref_put(&tg->refcount, drm_tile_group_free); | |
5550 | } | |
5551 | ||
5552 | /** | |
5553 | * drm_mode_get_tile_group - get a reference to an existing tile group | |
5554 | * @dev: DRM device | |
5555 | * @topology: 8-bytes unique per monitor. | |
5556 | * | |
5557 | * Use the unique bytes to get a reference to an existing tile group. | |
5558 | * | |
5559 | * RETURNS: | |
5560 | * tile group or NULL if not found. | |
5561 | */ | |
5562 | struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, | |
5563 | char topology[8]) | |
5564 | { | |
5565 | struct drm_tile_group *tg; | |
5566 | int id; | |
5567 | mutex_lock(&dev->mode_config.idr_mutex); | |
5568 | idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) { | |
5569 | if (!memcmp(tg->group_data, topology, 8)) { | |
5570 | if (!kref_get_unless_zero(&tg->refcount)) | |
5571 | tg = NULL; | |
5572 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5573 | return tg; | |
5574 | } | |
5575 | } | |
5576 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5577 | return NULL; | |
5578 | } | |
5579 | ||
5580 | /** | |
5581 | * drm_mode_create_tile_group - create a tile group from a displayid description | |
5582 | * @dev: DRM device | |
5583 | * @topology: 8-bytes unique per monitor. | |
5584 | * | |
5585 | * Create a tile group for the unique monitor, and get a unique | |
5586 | * identifier for the tile group. | |
5587 | * | |
5588 | * RETURNS: | |
5589 | * new tile group or error. | |
5590 | */ | |
5591 | struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, | |
5592 | char topology[8]) | |
5593 | { | |
5594 | struct drm_tile_group *tg; | |
5595 | int ret; | |
5596 | ||
5597 | tg = kzalloc(sizeof(*tg), GFP_KERNEL); | |
5598 | if (!tg) | |
5599 | return ERR_PTR(-ENOMEM); | |
5600 | ||
5601 | kref_init(&tg->refcount); | |
5602 | memcpy(tg->group_data, topology, 8); | |
5603 | tg->dev = dev; | |
5604 | ||
5605 | mutex_lock(&dev->mode_config.idr_mutex); | |
5606 | ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL); | |
5607 | if (ret >= 0) { | |
5608 | tg->id = ret; | |
5609 | } else { | |
5610 | kfree(tg); | |
5611 | tg = ERR_PTR(ret); | |
5612 | } | |
5613 | ||
5614 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5615 | return tg; | |
5616 | } |