Commit | Line | Data |
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f453ba04 DA |
1 | /* |
2 | * Copyright (c) 2006-2008 Intel Corporation | |
3 | * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> | |
4 | * Copyright (c) 2008 Red Hat Inc. | |
5 | * | |
6 | * DRM core CRTC related functions | |
7 | * | |
8 | * Permission to use, copy, modify, distribute, and sell this software and its | |
9 | * documentation for any purpose is hereby granted without fee, provided that | |
10 | * the above copyright notice appear in all copies and that both that copyright | |
11 | * notice and this permission notice appear in supporting documentation, and | |
12 | * that the name of the copyright holders not be used in advertising or | |
13 | * publicity pertaining to distribution of the software without specific, | |
14 | * written prior permission. The copyright holders make no representations | |
15 | * about the suitability of this software for any purpose. It is provided "as | |
16 | * is" without express or implied warranty. | |
17 | * | |
18 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
19 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
20 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
21 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
22 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
23 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
24 | * OF THIS SOFTWARE. | |
25 | * | |
26 | * Authors: | |
27 | * Keith Packard | |
28 | * Eric Anholt <eric@anholt.net> | |
29 | * Dave Airlie <airlied@linux.ie> | |
30 | * Jesse Barnes <jesse.barnes@intel.com> | |
31 | */ | |
6ba6d03e | 32 | #include <linux/ctype.h> |
f453ba04 | 33 | #include <linux/list.h> |
5a0e3ad6 | 34 | #include <linux/slab.h> |
2d1a8a48 | 35 | #include <linux/export.h> |
760285e7 DH |
36 | #include <drm/drmP.h> |
37 | #include <drm/drm_crtc.h> | |
38 | #include <drm/drm_edid.h> | |
39 | #include <drm/drm_fourcc.h> | |
51fd371b | 40 | #include <drm/drm_modeset_lock.h> |
88a48e29 | 41 | #include <drm/drm_atomic.h> |
f453ba04 | 42 | |
8bd441b2 | 43 | #include "drm_crtc_internal.h" |
67d0ec4e | 44 | #include "drm_internal.h" |
8bd441b2 | 45 | |
9a6f5130 CW |
46 | static struct drm_framebuffer * |
47 | internal_framebuffer_create(struct drm_device *dev, | |
48 | struct drm_mode_fb_cmd2 *r, | |
49 | struct drm_file *file_priv); | |
c394c2b0 | 50 | |
f453ba04 DA |
51 | /* Avoid boilerplate. I'm tired of typing. */ |
52 | #define DRM_ENUM_NAME_FN(fnname, list) \ | |
d20d3174 | 53 | const char *fnname(int val) \ |
f453ba04 DA |
54 | { \ |
55 | int i; \ | |
56 | for (i = 0; i < ARRAY_SIZE(list); i++) { \ | |
57 | if (list[i].type == val) \ | |
58 | return list[i].name; \ | |
59 | } \ | |
60 | return "(unknown)"; \ | |
61 | } | |
62 | ||
63 | /* | |
64 | * Global properties | |
65 | */ | |
4dfd909f TR |
66 | static const struct drm_prop_enum_list drm_dpms_enum_list[] = { |
67 | { DRM_MODE_DPMS_ON, "On" }, | |
f453ba04 DA |
68 | { DRM_MODE_DPMS_STANDBY, "Standby" }, |
69 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, | |
70 | { DRM_MODE_DPMS_OFF, "Off" } | |
71 | }; | |
72 | ||
73 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) | |
74 | ||
4dfd909f | 75 | static const struct drm_prop_enum_list drm_plane_type_enum_list[] = { |
9922ab5a RC |
76 | { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, |
77 | { DRM_PLANE_TYPE_PRIMARY, "Primary" }, | |
78 | { DRM_PLANE_TYPE_CURSOR, "Cursor" }, | |
79 | }; | |
80 | ||
f453ba04 DA |
81 | /* |
82 | * Optional properties | |
83 | */ | |
4dfd909f | 84 | static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = { |
53bd8389 JB |
85 | { DRM_MODE_SCALE_NONE, "None" }, |
86 | { DRM_MODE_SCALE_FULLSCREEN, "Full" }, | |
87 | { DRM_MODE_SCALE_CENTER, "Center" }, | |
88 | { DRM_MODE_SCALE_ASPECT, "Full aspect" }, | |
f453ba04 DA |
89 | }; |
90 | ||
ff587e45 VK |
91 | static const struct drm_prop_enum_list drm_aspect_ratio_enum_list[] = { |
92 | { DRM_MODE_PICTURE_ASPECT_NONE, "Automatic" }, | |
93 | { DRM_MODE_PICTURE_ASPECT_4_3, "4:3" }, | |
94 | { DRM_MODE_PICTURE_ASPECT_16_9, "16:9" }, | |
95 | }; | |
96 | ||
f453ba04 DA |
97 | /* |
98 | * Non-global properties, but "required" for certain connectors. | |
99 | */ | |
4dfd909f | 100 | static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = { |
f453ba04 DA |
101 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
102 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
103 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
104 | }; | |
105 | ||
106 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) | |
107 | ||
4dfd909f | 108 | static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = { |
f453ba04 DA |
109 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
110 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
111 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
112 | }; | |
113 | ||
114 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, | |
115 | drm_dvi_i_subconnector_enum_list) | |
116 | ||
4dfd909f | 117 | static const struct drm_prop_enum_list drm_tv_select_enum_list[] = { |
f453ba04 DA |
118 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
119 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
120 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
121 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 122 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
123 | }; |
124 | ||
125 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) | |
126 | ||
4dfd909f | 127 | static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = { |
f453ba04 DA |
128 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
129 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
130 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
131 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 132 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
133 | }; |
134 | ||
135 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, | |
136 | drm_tv_subconnector_enum_list) | |
137 | ||
d20d3174 | 138 | static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = { |
884840aa JB |
139 | { DRM_MODE_DIRTY_OFF, "Off" }, |
140 | { DRM_MODE_DIRTY_ON, "On" }, | |
141 | { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, | |
142 | }; | |
143 | ||
f453ba04 DA |
144 | struct drm_conn_prop_enum_list { |
145 | int type; | |
d20d3174 | 146 | const char *name; |
b21e3afe | 147 | struct ida ida; |
f453ba04 DA |
148 | }; |
149 | ||
150 | /* | |
151 | * Connector and encoder types. | |
152 | */ | |
4dfd909f TR |
153 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = { |
154 | { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, | |
b21e3afe IM |
155 | { DRM_MODE_CONNECTOR_VGA, "VGA" }, |
156 | { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, | |
157 | { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, | |
158 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, | |
159 | { DRM_MODE_CONNECTOR_Composite, "Composite" }, | |
160 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, | |
161 | { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, | |
162 | { DRM_MODE_CONNECTOR_Component, "Component" }, | |
163 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, | |
164 | { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, | |
165 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, | |
166 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, | |
167 | { DRM_MODE_CONNECTOR_TV, "TV" }, | |
168 | { DRM_MODE_CONNECTOR_eDP, "eDP" }, | |
169 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, | |
b8923273 | 170 | { DRM_MODE_CONNECTOR_DSI, "DSI" }, |
f453ba04 DA |
171 | }; |
172 | ||
4dfd909f TR |
173 | static const struct drm_prop_enum_list drm_encoder_enum_list[] = { |
174 | { DRM_MODE_ENCODER_NONE, "None" }, | |
f453ba04 DA |
175 | { DRM_MODE_ENCODER_DAC, "DAC" }, |
176 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, | |
177 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, | |
178 | { DRM_MODE_ENCODER_TVDAC, "TV" }, | |
a7331e5c | 179 | { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, |
b8923273 | 180 | { DRM_MODE_ENCODER_DSI, "DSI" }, |
182407a6 | 181 | { DRM_MODE_ENCODER_DPMST, "DP MST" }, |
f453ba04 DA |
182 | }; |
183 | ||
4dfd909f | 184 | static const struct drm_prop_enum_list drm_subpixel_enum_list[] = { |
ac1bb36c JB |
185 | { SubPixelUnknown, "Unknown" }, |
186 | { SubPixelHorizontalRGB, "Horizontal RGB" }, | |
187 | { SubPixelHorizontalBGR, "Horizontal BGR" }, | |
188 | { SubPixelVerticalRGB, "Vertical RGB" }, | |
189 | { SubPixelVerticalBGR, "Vertical BGR" }, | |
190 | { SubPixelNone, "None" }, | |
191 | }; | |
192 | ||
b21e3afe IM |
193 | void drm_connector_ida_init(void) |
194 | { | |
195 | int i; | |
196 | ||
197 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
198 | ida_init(&drm_connector_enum_list[i].ida); | |
199 | } | |
200 | ||
201 | void drm_connector_ida_destroy(void) | |
202 | { | |
203 | int i; | |
204 | ||
205 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
206 | ida_destroy(&drm_connector_enum_list[i].ida); | |
207 | } | |
208 | ||
c8e32cc1 DV |
209 | /** |
210 | * drm_get_connector_status_name - return a string for connector status | |
211 | * @status: connector status to compute name of | |
212 | * | |
213 | * In contrast to the other drm_get_*_name functions this one here returns a | |
214 | * const pointer and hence is threadsafe. | |
215 | */ | |
d20d3174 | 216 | const char *drm_get_connector_status_name(enum drm_connector_status status) |
f453ba04 DA |
217 | { |
218 | if (status == connector_status_connected) | |
219 | return "connected"; | |
220 | else if (status == connector_status_disconnected) | |
221 | return "disconnected"; | |
222 | else | |
223 | return "unknown"; | |
224 | } | |
ed7951dc | 225 | EXPORT_SYMBOL(drm_get_connector_status_name); |
f453ba04 | 226 | |
ac1bb36c JB |
227 | /** |
228 | * drm_get_subpixel_order_name - return a string for a given subpixel enum | |
229 | * @order: enum of subpixel_order | |
230 | * | |
231 | * Note you could abuse this and return something out of bounds, but that | |
232 | * would be a caller error. No unscrubbed user data should make it here. | |
233 | */ | |
234 | const char *drm_get_subpixel_order_name(enum subpixel_order order) | |
235 | { | |
236 | return drm_subpixel_enum_list[order].name; | |
237 | } | |
238 | EXPORT_SYMBOL(drm_get_subpixel_order_name); | |
239 | ||
6ba6d03e VS |
240 | static char printable_char(int c) |
241 | { | |
242 | return isascii(c) && isprint(c) ? c : '?'; | |
243 | } | |
244 | ||
c8e32cc1 DV |
245 | /** |
246 | * drm_get_format_name - return a string for drm fourcc format | |
247 | * @format: format to compute name of | |
248 | * | |
249 | * Note that the buffer used by this function is globally shared and owned by | |
250 | * the function itself. | |
251 | * | |
252 | * FIXME: This isn't really multithreading safe. | |
253 | */ | |
d20d3174 | 254 | const char *drm_get_format_name(uint32_t format) |
6ba6d03e VS |
255 | { |
256 | static char buf[32]; | |
257 | ||
258 | snprintf(buf, sizeof(buf), | |
259 | "%c%c%c%c %s-endian (0x%08x)", | |
260 | printable_char(format & 0xff), | |
261 | printable_char((format >> 8) & 0xff), | |
262 | printable_char((format >> 16) & 0xff), | |
263 | printable_char((format >> 24) & 0x7f), | |
264 | format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little", | |
265 | format); | |
266 | ||
267 | return buf; | |
268 | } | |
269 | EXPORT_SYMBOL(drm_get_format_name); | |
270 | ||
2ee39452 DA |
271 | /* |
272 | * Internal function to assign a slot in the object idr and optionally | |
273 | * register the object into the idr. | |
274 | */ | |
275 | static int drm_mode_object_get_reg(struct drm_device *dev, | |
276 | struct drm_mode_object *obj, | |
277 | uint32_t obj_type, | |
278 | bool register_obj) | |
279 | { | |
280 | int ret; | |
281 | ||
282 | mutex_lock(&dev->mode_config.idr_mutex); | |
283 | ret = idr_alloc(&dev->mode_config.crtc_idr, register_obj ? obj : NULL, 1, 0, GFP_KERNEL); | |
284 | if (ret >= 0) { | |
285 | /* | |
286 | * Set up the object linking under the protection of the idr | |
287 | * lock so that other users can't see inconsistent state. | |
288 | */ | |
289 | obj->id = ret; | |
290 | obj->type = obj_type; | |
291 | } | |
292 | mutex_unlock(&dev->mode_config.idr_mutex); | |
293 | ||
294 | return ret < 0 ? ret : 0; | |
295 | } | |
296 | ||
f453ba04 | 297 | /** |
065a50ed | 298 | * drm_mode_object_get - allocate a new modeset identifier |
f453ba04 | 299 | * @dev: DRM device |
065a50ed DV |
300 | * @obj: object pointer, used to generate unique ID |
301 | * @obj_type: object type | |
f453ba04 | 302 | * |
f453ba04 | 303 | * Create a unique identifier based on @ptr in @dev's identifier space. Used |
c8e32cc1 DV |
304 | * for tracking modes, CRTCs and connectors. Note that despite the _get postfix |
305 | * modeset identifiers are _not_ reference counted. Hence don't use this for | |
306 | * reference counted modeset objects like framebuffers. | |
f453ba04 | 307 | * |
c8e32cc1 | 308 | * Returns: |
f453ba04 DA |
309 | * New unique (relative to other objects in @dev) integer identifier for the |
310 | * object. | |
311 | */ | |
8bd441b2 DV |
312 | int drm_mode_object_get(struct drm_device *dev, |
313 | struct drm_mode_object *obj, uint32_t obj_type) | |
f453ba04 | 314 | { |
2ee39452 DA |
315 | return drm_mode_object_get_reg(dev, obj, obj_type, true); |
316 | } | |
f453ba04 | 317 | |
2ee39452 DA |
318 | static void drm_mode_object_register(struct drm_device *dev, |
319 | struct drm_mode_object *obj) | |
320 | { | |
ad2563c2 | 321 | mutex_lock(&dev->mode_config.idr_mutex); |
2ee39452 | 322 | idr_replace(&dev->mode_config.crtc_idr, obj, obj->id); |
ad2563c2 | 323 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
324 | } |
325 | ||
326 | /** | |
065a50ed | 327 | * drm_mode_object_put - free a modeset identifer |
f453ba04 | 328 | * @dev: DRM device |
065a50ed | 329 | * @object: object to free |
f453ba04 | 330 | * |
c8e32cc1 DV |
331 | * Free @id from @dev's unique identifier pool. Note that despite the _get |
332 | * postfix modeset identifiers are _not_ reference counted. Hence don't use this | |
333 | * for reference counted modeset objects like framebuffers. | |
f453ba04 | 334 | */ |
8bd441b2 DV |
335 | void drm_mode_object_put(struct drm_device *dev, |
336 | struct drm_mode_object *object) | |
f453ba04 | 337 | { |
ad2563c2 | 338 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 | 339 | idr_remove(&dev->mode_config.crtc_idr, object->id); |
ad2563c2 | 340 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
341 | } |
342 | ||
98f75de4 RC |
343 | static struct drm_mode_object *_object_find(struct drm_device *dev, |
344 | uint32_t id, uint32_t type) | |
345 | { | |
346 | struct drm_mode_object *obj = NULL; | |
347 | ||
348 | mutex_lock(&dev->mode_config.idr_mutex); | |
349 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
168c02ec DV |
350 | if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type) |
351 | obj = NULL; | |
352 | if (obj && obj->id != id) | |
353 | obj = NULL; | |
354 | /* don't leak out unref'd fb's */ | |
355 | if (obj && (obj->type == DRM_MODE_OBJECT_FB)) | |
98f75de4 RC |
356 | obj = NULL; |
357 | mutex_unlock(&dev->mode_config.idr_mutex); | |
358 | ||
359 | return obj; | |
360 | } | |
361 | ||
786b99ed DV |
362 | /** |
363 | * drm_mode_object_find - look up a drm object with static lifetime | |
364 | * @dev: drm device | |
365 | * @id: id of the mode object | |
366 | * @type: type of the mode object | |
367 | * | |
368 | * Note that framebuffers cannot be looked up with this functions - since those | |
98f75de4 RC |
369 | * are reference counted, they need special treatment. Even with |
370 | * DRM_MODE_OBJECT_ANY (although that will simply return NULL | |
371 | * rather than WARN_ON()). | |
786b99ed | 372 | */ |
7a9c9060 DV |
373 | struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
374 | uint32_t id, uint32_t type) | |
f453ba04 | 375 | { |
ad2563c2 | 376 | struct drm_mode_object *obj = NULL; |
f453ba04 | 377 | |
786b99ed DV |
378 | /* Framebuffers are reference counted and need their own lookup |
379 | * function.*/ | |
380 | WARN_ON(type == DRM_MODE_OBJECT_FB); | |
98f75de4 | 381 | obj = _object_find(dev, id, type); |
f453ba04 DA |
382 | return obj; |
383 | } | |
384 | EXPORT_SYMBOL(drm_mode_object_find); | |
385 | ||
f453ba04 DA |
386 | /** |
387 | * drm_framebuffer_init - initialize a framebuffer | |
388 | * @dev: DRM device | |
065a50ed DV |
389 | * @fb: framebuffer to be initialized |
390 | * @funcs: ... with these functions | |
f453ba04 | 391 | * |
f453ba04 DA |
392 | * Allocates an ID for the framebuffer's parent mode object, sets its mode |
393 | * functions & device file and adds it to the master fd list. | |
394 | * | |
4b096ac1 DV |
395 | * IMPORTANT: |
396 | * This functions publishes the fb and makes it available for concurrent access | |
397 | * by other users. Which means by this point the fb _must_ be fully set up - | |
398 | * since all the fb attributes are invariant over its lifetime, no further | |
399 | * locking but only correct reference counting is required. | |
400 | * | |
c8e32cc1 | 401 | * Returns: |
af901ca1 | 402 | * Zero on success, error code on failure. |
f453ba04 DA |
403 | */ |
404 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, | |
405 | const struct drm_framebuffer_funcs *funcs) | |
406 | { | |
407 | int ret; | |
408 | ||
4b096ac1 | 409 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e | 410 | kref_init(&fb->refcount); |
4b096ac1 DV |
411 | INIT_LIST_HEAD(&fb->filp_head); |
412 | fb->dev = dev; | |
413 | fb->funcs = funcs; | |
f7eff60e | 414 | |
f453ba04 | 415 | ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); |
6bfc56aa | 416 | if (ret) |
4b096ac1 | 417 | goto out; |
f453ba04 | 418 | |
f453ba04 DA |
419 | dev->mode_config.num_fb++; |
420 | list_add(&fb->head, &dev->mode_config.fb_list); | |
4b096ac1 DV |
421 | out: |
422 | mutex_unlock(&dev->mode_config.fb_lock); | |
f453ba04 DA |
423 | |
424 | return 0; | |
425 | } | |
426 | EXPORT_SYMBOL(drm_framebuffer_init); | |
427 | ||
83f45fc3 DV |
428 | /* dev->mode_config.fb_lock must be held! */ |
429 | static void __drm_framebuffer_unregister(struct drm_device *dev, | |
430 | struct drm_framebuffer *fb) | |
431 | { | |
432 | mutex_lock(&dev->mode_config.idr_mutex); | |
433 | idr_remove(&dev->mode_config.crtc_idr, fb->base.id); | |
434 | mutex_unlock(&dev->mode_config.idr_mutex); | |
435 | ||
436 | fb->base.id = 0; | |
437 | } | |
438 | ||
f7eff60e RC |
439 | static void drm_framebuffer_free(struct kref *kref) |
440 | { | |
441 | struct drm_framebuffer *fb = | |
442 | container_of(kref, struct drm_framebuffer, refcount); | |
83f45fc3 DV |
443 | struct drm_device *dev = fb->dev; |
444 | ||
445 | /* | |
446 | * The lookup idr holds a weak reference, which has not necessarily been | |
447 | * removed at this point. Check for that. | |
448 | */ | |
449 | mutex_lock(&dev->mode_config.fb_lock); | |
450 | if (fb->base.id) { | |
451 | /* Mark fb as reaped and drop idr ref. */ | |
452 | __drm_framebuffer_unregister(dev, fb); | |
453 | } | |
454 | mutex_unlock(&dev->mode_config.fb_lock); | |
455 | ||
f7eff60e RC |
456 | fb->funcs->destroy(fb); |
457 | } | |
458 | ||
2b677e8c DV |
459 | static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev, |
460 | uint32_t id) | |
461 | { | |
462 | struct drm_mode_object *obj = NULL; | |
463 | struct drm_framebuffer *fb; | |
464 | ||
465 | mutex_lock(&dev->mode_config.idr_mutex); | |
466 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
467 | if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id)) | |
468 | fb = NULL; | |
469 | else | |
470 | fb = obj_to_fb(obj); | |
471 | mutex_unlock(&dev->mode_config.idr_mutex); | |
472 | ||
473 | return fb; | |
474 | } | |
475 | ||
786b99ed DV |
476 | /** |
477 | * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference | |
478 | * @dev: drm device | |
479 | * @id: id of the fb object | |
480 | * | |
481 | * If successful, this grabs an additional reference to the framebuffer - | |
482 | * callers need to make sure to eventually unreference the returned framebuffer | |
c8e32cc1 | 483 | * again, using @drm_framebuffer_unreference. |
786b99ed DV |
484 | */ |
485 | struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, | |
486 | uint32_t id) | |
487 | { | |
786b99ed DV |
488 | struct drm_framebuffer *fb; |
489 | ||
490 | mutex_lock(&dev->mode_config.fb_lock); | |
2b677e8c | 491 | fb = __drm_framebuffer_lookup(dev, id); |
83f45fc3 DV |
492 | if (fb) { |
493 | if (!kref_get_unless_zero(&fb->refcount)) | |
494 | fb = NULL; | |
495 | } | |
786b99ed DV |
496 | mutex_unlock(&dev->mode_config.fb_lock); |
497 | ||
498 | return fb; | |
499 | } | |
500 | EXPORT_SYMBOL(drm_framebuffer_lookup); | |
501 | ||
f7eff60e RC |
502 | /** |
503 | * drm_framebuffer_unreference - unref a framebuffer | |
065a50ed DV |
504 | * @fb: framebuffer to unref |
505 | * | |
506 | * This functions decrements the fb's refcount and frees it if it drops to zero. | |
f7eff60e RC |
507 | */ |
508 | void drm_framebuffer_unreference(struct drm_framebuffer *fb) | |
509 | { | |
8291272a | 510 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
f7eff60e RC |
511 | kref_put(&fb->refcount, drm_framebuffer_free); |
512 | } | |
513 | EXPORT_SYMBOL(drm_framebuffer_unreference); | |
514 | ||
515 | /** | |
516 | * drm_framebuffer_reference - incr the fb refcnt | |
065a50ed | 517 | * @fb: framebuffer |
c8e32cc1 DV |
518 | * |
519 | * This functions increments the fb's refcount. | |
f7eff60e RC |
520 | */ |
521 | void drm_framebuffer_reference(struct drm_framebuffer *fb) | |
522 | { | |
8291272a | 523 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
f7eff60e RC |
524 | kref_get(&fb->refcount); |
525 | } | |
526 | EXPORT_SYMBOL(drm_framebuffer_reference); | |
527 | ||
36206361 DV |
528 | /** |
529 | * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr | |
530 | * @fb: fb to unregister | |
531 | * | |
532 | * Drivers need to call this when cleaning up driver-private framebuffers, e.g. | |
533 | * those used for fbdev. Note that the caller must hold a reference of it's own, | |
534 | * i.e. the object may not be destroyed through this call (since it'll lead to a | |
535 | * locking inversion). | |
536 | */ | |
537 | void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) | |
538 | { | |
2b677e8c DV |
539 | struct drm_device *dev = fb->dev; |
540 | ||
541 | mutex_lock(&dev->mode_config.fb_lock); | |
542 | /* Mark fb as reaped and drop idr ref. */ | |
543 | __drm_framebuffer_unregister(dev, fb); | |
544 | mutex_unlock(&dev->mode_config.fb_lock); | |
36206361 DV |
545 | } |
546 | EXPORT_SYMBOL(drm_framebuffer_unregister_private); | |
547 | ||
f453ba04 DA |
548 | /** |
549 | * drm_framebuffer_cleanup - remove a framebuffer object | |
550 | * @fb: framebuffer to remove | |
551 | * | |
c8e32cc1 DV |
552 | * Cleanup framebuffer. This function is intended to be used from the drivers |
553 | * ->destroy callback. It can also be used to clean up driver private | |
554 | * framebuffers embedded into a larger structure. | |
36206361 DV |
555 | * |
556 | * Note that this function does not remove the fb from active usuage - if it is | |
557 | * still used anywhere, hilarity can ensue since userspace could call getfb on | |
558 | * the id and get back -EINVAL. Obviously no concern at driver unload time. | |
559 | * | |
560 | * Also, the framebuffer will not be removed from the lookup idr - for | |
561 | * user-created framebuffers this will happen in in the rmfb ioctl. For | |
562 | * driver-private objects (e.g. for fbdev) drivers need to explicitly call | |
563 | * drm_framebuffer_unregister_private. | |
f453ba04 DA |
564 | */ |
565 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) | |
f7eff60e RC |
566 | { |
567 | struct drm_device *dev = fb->dev; | |
8faf6b18 | 568 | |
4b096ac1 | 569 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e RC |
570 | list_del(&fb->head); |
571 | dev->mode_config.num_fb--; | |
4b096ac1 | 572 | mutex_unlock(&dev->mode_config.fb_lock); |
f7eff60e RC |
573 | } |
574 | EXPORT_SYMBOL(drm_framebuffer_cleanup); | |
575 | ||
576 | /** | |
577 | * drm_framebuffer_remove - remove and unreference a framebuffer object | |
578 | * @fb: framebuffer to remove | |
579 | * | |
f7eff60e | 580 | * Scans all the CRTCs and planes in @dev's mode_config. If they're |
36206361 | 581 | * using @fb, removes it, setting it to NULL. Then drops the reference to the |
b62584e3 DV |
582 | * passed-in framebuffer. Might take the modeset locks. |
583 | * | |
584 | * Note that this function optimizes the cleanup away if the caller holds the | |
585 | * last reference to the framebuffer. It is also guaranteed to not take the | |
586 | * modeset locks in this case. | |
f7eff60e RC |
587 | */ |
588 | void drm_framebuffer_remove(struct drm_framebuffer *fb) | |
f453ba04 DA |
589 | { |
590 | struct drm_device *dev = fb->dev; | |
591 | struct drm_crtc *crtc; | |
8cf5c917 | 592 | struct drm_plane *plane; |
5ef5f72f DA |
593 | struct drm_mode_set set; |
594 | int ret; | |
f453ba04 | 595 | |
4b096ac1 | 596 | WARN_ON(!list_empty(&fb->filp_head)); |
8faf6b18 | 597 | |
b62584e3 DV |
598 | /* |
599 | * drm ABI mandates that we remove any deleted framebuffers from active | |
600 | * useage. But since most sane clients only remove framebuffers they no | |
601 | * longer need, try to optimize this away. | |
602 | * | |
603 | * Since we're holding a reference ourselves, observing a refcount of 1 | |
604 | * means that we're the last holder and can skip it. Also, the refcount | |
605 | * can never increase from 1 again, so we don't need any barriers or | |
606 | * locks. | |
607 | * | |
608 | * Note that userspace could try to race with use and instate a new | |
609 | * usage _after_ we've cleared all current ones. End result will be an | |
610 | * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot | |
611 | * in this manner. | |
612 | */ | |
613 | if (atomic_read(&fb->refcount.refcount) > 1) { | |
614 | drm_modeset_lock_all(dev); | |
615 | /* remove from any CRTC */ | |
616 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
f4510a27 | 617 | if (crtc->primary->fb == fb) { |
b62584e3 DV |
618 | /* should turn off the crtc */ |
619 | memset(&set, 0, sizeof(struct drm_mode_set)); | |
620 | set.crtc = crtc; | |
621 | set.fb = NULL; | |
622 | ret = drm_mode_set_config_internal(&set); | |
623 | if (ret) | |
624 | DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); | |
625 | } | |
5ef5f72f | 626 | } |
f453ba04 | 627 | |
b62584e3 | 628 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) { |
9125e618 VS |
629 | if (plane->fb == fb) |
630 | drm_plane_force_disable(plane); | |
8cf5c917 | 631 | } |
b62584e3 | 632 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
633 | } |
634 | ||
f7eff60e | 635 | drm_framebuffer_unreference(fb); |
f453ba04 | 636 | } |
f7eff60e | 637 | EXPORT_SYMBOL(drm_framebuffer_remove); |
f453ba04 | 638 | |
51fd371b RC |
639 | DEFINE_WW_CLASS(crtc_ww_class); |
640 | ||
f453ba04 | 641 | /** |
e13161af MR |
642 | * drm_crtc_init_with_planes - Initialise a new CRTC object with |
643 | * specified primary and cursor planes. | |
f453ba04 DA |
644 | * @dev: DRM device |
645 | * @crtc: CRTC object to init | |
e13161af MR |
646 | * @primary: Primary plane for CRTC |
647 | * @cursor: Cursor plane for CRTC | |
f453ba04 DA |
648 | * @funcs: callbacks for the new CRTC |
649 | * | |
ad6f5c34 | 650 | * Inits a new object created as base part of a driver crtc object. |
6bfc56aa | 651 | * |
c8e32cc1 | 652 | * Returns: |
6bfc56aa | 653 | * Zero on success, error code on failure. |
f453ba04 | 654 | */ |
e13161af MR |
655 | int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, |
656 | struct drm_plane *primary, | |
fc1d3e44 | 657 | struct drm_plane *cursor, |
e13161af | 658 | const struct drm_crtc_funcs *funcs) |
f453ba04 | 659 | { |
51fd371b | 660 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
661 | int ret; |
662 | ||
f453ba04 DA |
663 | crtc->dev = dev; |
664 | crtc->funcs = funcs; | |
7c80e128 | 665 | crtc->invert_dimensions = false; |
f453ba04 | 666 | |
51fd371b | 667 | drm_modeset_lock_init(&crtc->mutex); |
6bfc56aa VS |
668 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); |
669 | if (ret) | |
baf698b0 | 670 | return ret; |
f453ba04 | 671 | |
bffd9de0 PZ |
672 | crtc->base.properties = &crtc->properties; |
673 | ||
51fd371b RC |
674 | list_add_tail(&crtc->head, &config->crtc_list); |
675 | config->num_crtc++; | |
6bfc56aa | 676 | |
e13161af | 677 | crtc->primary = primary; |
fc1d3e44 | 678 | crtc->cursor = cursor; |
e13161af MR |
679 | if (primary) |
680 | primary->possible_crtcs = 1 << drm_crtc_index(crtc); | |
fc1d3e44 MR |
681 | if (cursor) |
682 | cursor->possible_crtcs = 1 << drm_crtc_index(crtc); | |
e13161af | 683 | |
eab3bbef DV |
684 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
685 | drm_object_attach_property(&crtc->base, config->prop_active, 0); | |
686 | } | |
687 | ||
baf698b0 | 688 | return 0; |
f453ba04 | 689 | } |
e13161af | 690 | EXPORT_SYMBOL(drm_crtc_init_with_planes); |
f453ba04 DA |
691 | |
692 | /** | |
ad6f5c34 | 693 | * drm_crtc_cleanup - Clean up the core crtc usage |
f453ba04 DA |
694 | * @crtc: CRTC to cleanup |
695 | * | |
ad6f5c34 VS |
696 | * This function cleans up @crtc and removes it from the DRM mode setting |
697 | * core. Note that the function does *not* free the crtc structure itself, | |
698 | * this is the responsibility of the caller. | |
f453ba04 DA |
699 | */ |
700 | void drm_crtc_cleanup(struct drm_crtc *crtc) | |
701 | { | |
702 | struct drm_device *dev = crtc->dev; | |
703 | ||
9e1c156f SK |
704 | kfree(crtc->gamma_store); |
705 | crtc->gamma_store = NULL; | |
f453ba04 | 706 | |
51fd371b RC |
707 | drm_modeset_lock_fini(&crtc->mutex); |
708 | ||
f453ba04 DA |
709 | drm_mode_object_put(dev, &crtc->base); |
710 | list_del(&crtc->head); | |
711 | dev->mode_config.num_crtc--; | |
3009c037 TR |
712 | |
713 | WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); | |
714 | if (crtc->state && crtc->funcs->atomic_destroy_state) | |
715 | crtc->funcs->atomic_destroy_state(crtc, crtc->state); | |
a18c0af1 TR |
716 | |
717 | memset(crtc, 0, sizeof(*crtc)); | |
f453ba04 DA |
718 | } |
719 | EXPORT_SYMBOL(drm_crtc_cleanup); | |
720 | ||
db5f7a6e RK |
721 | /** |
722 | * drm_crtc_index - find the index of a registered CRTC | |
723 | * @crtc: CRTC to find index for | |
724 | * | |
725 | * Given a registered CRTC, return the index of that CRTC within a DRM | |
726 | * device's list of CRTCs. | |
727 | */ | |
728 | unsigned int drm_crtc_index(struct drm_crtc *crtc) | |
729 | { | |
730 | unsigned int index = 0; | |
731 | struct drm_crtc *tmp; | |
732 | ||
733 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { | |
734 | if (tmp == crtc) | |
735 | return index; | |
736 | ||
737 | index++; | |
738 | } | |
739 | ||
740 | BUG(); | |
741 | } | |
742 | EXPORT_SYMBOL(drm_crtc_index); | |
743 | ||
86f422d5 | 744 | /* |
f453ba04 DA |
745 | * drm_mode_remove - remove and free a mode |
746 | * @connector: connector list to modify | |
747 | * @mode: mode to remove | |
748 | * | |
f453ba04 DA |
749 | * Remove @mode from @connector's mode list, then free it. |
750 | */ | |
86f422d5 LD |
751 | static void drm_mode_remove(struct drm_connector *connector, |
752 | struct drm_display_mode *mode) | |
f453ba04 DA |
753 | { |
754 | list_del(&mode->head); | |
554f1d78 | 755 | drm_mode_destroy(connector->dev, mode); |
f453ba04 | 756 | } |
f453ba04 | 757 | |
b5571e9d BB |
758 | /** |
759 | * drm_display_info_set_bus_formats - set the supported bus formats | |
760 | * @info: display info to store bus formats in | |
e37bfa1a BB |
761 | * @formats: array containing the supported bus formats |
762 | * @num_formats: the number of entries in the fmts array | |
b5571e9d BB |
763 | * |
764 | * Store the supported bus formats in display info structure. | |
765 | * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for | |
766 | * a full list of available formats. | |
767 | */ | |
768 | int drm_display_info_set_bus_formats(struct drm_display_info *info, | |
769 | const u32 *formats, | |
770 | unsigned int num_formats) | |
771 | { | |
772 | u32 *fmts = NULL; | |
773 | ||
774 | if (!formats && num_formats) | |
775 | return -EINVAL; | |
776 | ||
777 | if (formats && num_formats) { | |
778 | fmts = kmemdup(formats, sizeof(*formats) * num_formats, | |
779 | GFP_KERNEL); | |
944579c5 | 780 | if (!fmts) |
b5571e9d BB |
781 | return -ENOMEM; |
782 | } | |
783 | ||
784 | kfree(info->bus_formats); | |
785 | info->bus_formats = fmts; | |
786 | info->num_bus_formats = num_formats; | |
787 | ||
788 | return 0; | |
789 | } | |
790 | EXPORT_SYMBOL(drm_display_info_set_bus_formats); | |
791 | ||
eaf99c74 CW |
792 | /** |
793 | * drm_connector_get_cmdline_mode - reads the user's cmdline mode | |
794 | * @connector: connector to quwery | |
eaf99c74 CW |
795 | * |
796 | * The kernel supports per-connector configration of its consoles through | |
797 | * use of the video= parameter. This function parses that option and | |
798 | * extracts the user's specified mode (or enable/disable status) for a | |
799 | * particular connector. This is typically only used during the early fbdev | |
800 | * setup. | |
801 | */ | |
802 | static void drm_connector_get_cmdline_mode(struct drm_connector *connector) | |
803 | { | |
804 | struct drm_cmdline_mode *mode = &connector->cmdline_mode; | |
805 | char *option = NULL; | |
806 | ||
807 | if (fb_get_options(connector->name, &option)) | |
808 | return; | |
809 | ||
810 | if (!drm_mode_parse_command_line_for_connector(option, | |
811 | connector, | |
812 | mode)) | |
813 | return; | |
814 | ||
815 | if (mode->force) { | |
816 | const char *s; | |
817 | ||
818 | switch (mode->force) { | |
819 | case DRM_FORCE_OFF: | |
820 | s = "OFF"; | |
821 | break; | |
822 | case DRM_FORCE_ON_DIGITAL: | |
823 | s = "ON - dig"; | |
824 | break; | |
825 | default: | |
826 | case DRM_FORCE_ON: | |
827 | s = "ON"; | |
828 | break; | |
829 | } | |
830 | ||
831 | DRM_INFO("forcing %s connector %s\n", connector->name, s); | |
832 | connector->force = mode->force; | |
833 | } | |
834 | ||
835 | DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", | |
836 | connector->name, | |
837 | mode->xres, mode->yres, | |
838 | mode->refresh_specified ? mode->refresh : 60, | |
839 | mode->rb ? " reduced blanking" : "", | |
840 | mode->margins ? " with margins" : "", | |
841 | mode->interlace ? " interlaced" : ""); | |
842 | } | |
843 | ||
f453ba04 DA |
844 | /** |
845 | * drm_connector_init - Init a preallocated connector | |
846 | * @dev: DRM device | |
847 | * @connector: the connector to init | |
848 | * @funcs: callbacks for this connector | |
065a50ed | 849 | * @connector_type: user visible type of the connector |
f453ba04 | 850 | * |
f453ba04 DA |
851 | * Initialises a preallocated connector. Connectors should be |
852 | * subclassed as part of driver connector objects. | |
6bfc56aa | 853 | * |
c8e32cc1 | 854 | * Returns: |
6bfc56aa | 855 | * Zero on success, error code on failure. |
f453ba04 | 856 | */ |
6bfc56aa VS |
857 | int drm_connector_init(struct drm_device *dev, |
858 | struct drm_connector *connector, | |
859 | const struct drm_connector_funcs *funcs, | |
860 | int connector_type) | |
f453ba04 | 861 | { |
ae16c597 | 862 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa | 863 | int ret; |
b21e3afe IM |
864 | struct ida *connector_ida = |
865 | &drm_connector_enum_list[connector_type].ida; | |
6bfc56aa | 866 | |
84849903 | 867 | drm_modeset_lock_all(dev); |
f453ba04 | 868 | |
2ee39452 | 869 | ret = drm_mode_object_get_reg(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR, false); |
6bfc56aa | 870 | if (ret) |
2abdd313 | 871 | goto out_unlock; |
6bfc56aa | 872 | |
7e3bdf4a | 873 | connector->base.properties = &connector->properties; |
f453ba04 DA |
874 | connector->dev = dev; |
875 | connector->funcs = funcs; | |
f453ba04 DA |
876 | connector->connector_type = connector_type; |
877 | connector->connector_type_id = | |
b21e3afe IM |
878 | ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); |
879 | if (connector->connector_type_id < 0) { | |
880 | ret = connector->connector_type_id; | |
2abdd313 | 881 | goto out_put; |
b21e3afe | 882 | } |
2abdd313 JN |
883 | connector->name = |
884 | kasprintf(GFP_KERNEL, "%s-%d", | |
885 | drm_connector_enum_list[connector_type].name, | |
886 | connector->connector_type_id); | |
887 | if (!connector->name) { | |
888 | ret = -ENOMEM; | |
889 | goto out_put; | |
890 | } | |
891 | ||
f453ba04 DA |
892 | INIT_LIST_HEAD(&connector->probed_modes); |
893 | INIT_LIST_HEAD(&connector->modes); | |
894 | connector->edid_blob_ptr = NULL; | |
5e2cb2f6 | 895 | connector->status = connector_status_unknown; |
f453ba04 | 896 | |
eaf99c74 CW |
897 | drm_connector_get_cmdline_mode(connector); |
898 | ||
c7eb76f4 DV |
899 | /* We should add connectors at the end to avoid upsetting the connector |
900 | * index too much. */ | |
ae16c597 RC |
901 | list_add_tail(&connector->head, &config->connector_list); |
902 | config->num_connector++; | |
f453ba04 | 903 | |
a7331e5c | 904 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) |
58495563 | 905 | drm_object_attach_property(&connector->base, |
ae16c597 | 906 | config->edid_property, |
a7331e5c | 907 | 0); |
f453ba04 | 908 | |
58495563 | 909 | drm_object_attach_property(&connector->base, |
ae16c597 RC |
910 | config->dpms_property, 0); |
911 | ||
912 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { | |
913 | drm_object_attach_property(&connector->base, config->prop_crtc_id, 0); | |
914 | } | |
f453ba04 | 915 | |
30f65707 TW |
916 | connector->debugfs_entry = NULL; |
917 | ||
2abdd313 JN |
918 | out_put: |
919 | if (ret) | |
920 | drm_mode_object_put(dev, &connector->base); | |
921 | ||
922 | out_unlock: | |
84849903 | 923 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
924 | |
925 | return ret; | |
f453ba04 DA |
926 | } |
927 | EXPORT_SYMBOL(drm_connector_init); | |
928 | ||
929 | /** | |
930 | * drm_connector_cleanup - cleans up an initialised connector | |
931 | * @connector: connector to cleanup | |
932 | * | |
f453ba04 DA |
933 | * Cleans up the connector but doesn't free the object. |
934 | */ | |
935 | void drm_connector_cleanup(struct drm_connector *connector) | |
936 | { | |
937 | struct drm_device *dev = connector->dev; | |
938 | struct drm_display_mode *mode, *t; | |
939 | ||
40d9b043 DA |
940 | if (connector->tile_group) { |
941 | drm_mode_put_tile_group(dev, connector->tile_group); | |
942 | connector->tile_group = NULL; | |
943 | } | |
944 | ||
f453ba04 DA |
945 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) |
946 | drm_mode_remove(connector, mode); | |
947 | ||
948 | list_for_each_entry_safe(mode, t, &connector->modes, head) | |
949 | drm_mode_remove(connector, mode); | |
950 | ||
b21e3afe IM |
951 | ida_remove(&drm_connector_enum_list[connector->connector_type].ida, |
952 | connector->connector_type_id); | |
953 | ||
b5571e9d | 954 | kfree(connector->display_info.bus_formats); |
f453ba04 | 955 | drm_mode_object_put(dev, &connector->base); |
2abdd313 JN |
956 | kfree(connector->name); |
957 | connector->name = NULL; | |
f453ba04 | 958 | list_del(&connector->head); |
6380c509 | 959 | dev->mode_config.num_connector--; |
3009c037 TR |
960 | |
961 | WARN_ON(connector->state && !connector->funcs->atomic_destroy_state); | |
962 | if (connector->state && connector->funcs->atomic_destroy_state) | |
963 | connector->funcs->atomic_destroy_state(connector, | |
964 | connector->state); | |
a18c0af1 TR |
965 | |
966 | memset(connector, 0, sizeof(*connector)); | |
f453ba04 DA |
967 | } |
968 | EXPORT_SYMBOL(drm_connector_cleanup); | |
969 | ||
10f637bf DV |
970 | /** |
971 | * drm_connector_index - find the index of a registered connector | |
972 | * @connector: connector to find index for | |
973 | * | |
974 | * Given a registered connector, return the index of that connector within a DRM | |
975 | * device's list of connectors. | |
976 | */ | |
977 | unsigned int drm_connector_index(struct drm_connector *connector) | |
978 | { | |
979 | unsigned int index = 0; | |
980 | struct drm_connector *tmp; | |
c7eb76f4 DV |
981 | struct drm_mode_config *config = &connector->dev->mode_config; |
982 | ||
983 | WARN_ON(!drm_modeset_is_locked(&config->connection_mutex)); | |
10f637bf DV |
984 | |
985 | list_for_each_entry(tmp, &connector->dev->mode_config.connector_list, head) { | |
986 | if (tmp == connector) | |
987 | return index; | |
988 | ||
989 | index++; | |
990 | } | |
991 | ||
992 | BUG(); | |
993 | } | |
994 | EXPORT_SYMBOL(drm_connector_index); | |
995 | ||
34ea3d38 TW |
996 | /** |
997 | * drm_connector_register - register a connector | |
998 | * @connector: the connector to register | |
999 | * | |
1000 | * Register userspace interfaces for a connector | |
1001 | * | |
1002 | * Returns: | |
1003 | * Zero on success, error code on failure. | |
1004 | */ | |
1005 | int drm_connector_register(struct drm_connector *connector) | |
1006 | { | |
30f65707 TW |
1007 | int ret; |
1008 | ||
2ee39452 DA |
1009 | drm_mode_object_register(connector->dev, &connector->base); |
1010 | ||
30f65707 TW |
1011 | ret = drm_sysfs_connector_add(connector); |
1012 | if (ret) | |
1013 | return ret; | |
1014 | ||
1015 | ret = drm_debugfs_connector_add(connector); | |
1016 | if (ret) { | |
1017 | drm_sysfs_connector_remove(connector); | |
1018 | return ret; | |
1019 | } | |
1020 | ||
1021 | return 0; | |
34ea3d38 TW |
1022 | } |
1023 | EXPORT_SYMBOL(drm_connector_register); | |
1024 | ||
1025 | /** | |
1026 | * drm_connector_unregister - unregister a connector | |
1027 | * @connector: the connector to unregister | |
1028 | * | |
1029 | * Unregister userspace interfaces for a connector | |
1030 | */ | |
1031 | void drm_connector_unregister(struct drm_connector *connector) | |
1032 | { | |
1033 | drm_sysfs_connector_remove(connector); | |
30f65707 | 1034 | drm_debugfs_connector_remove(connector); |
34ea3d38 TW |
1035 | } |
1036 | EXPORT_SYMBOL(drm_connector_unregister); | |
1037 | ||
1038 | ||
c8e32cc1 DV |
1039 | /** |
1040 | * drm_connector_unplug_all - unregister connector userspace interfaces | |
1041 | * @dev: drm device | |
1042 | * | |
1043 | * This function unregisters all connector userspace interfaces in sysfs. Should | |
1044 | * be call when the device is disconnected, e.g. from an usb driver's | |
1045 | * ->disconnect callback. | |
1046 | */ | |
cbc7e221 DA |
1047 | void drm_connector_unplug_all(struct drm_device *dev) |
1048 | { | |
1049 | struct drm_connector *connector; | |
1050 | ||
1051 | /* taking the mode config mutex ends up in a clash with sysfs */ | |
1052 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
34ea3d38 | 1053 | drm_connector_unregister(connector); |
cbc7e221 DA |
1054 | |
1055 | } | |
1056 | EXPORT_SYMBOL(drm_connector_unplug_all); | |
1057 | ||
c8e32cc1 DV |
1058 | /** |
1059 | * drm_encoder_init - Init a preallocated encoder | |
1060 | * @dev: drm device | |
1061 | * @encoder: the encoder to init | |
1062 | * @funcs: callbacks for this encoder | |
1063 | * @encoder_type: user visible type of the encoder | |
1064 | * | |
1065 | * Initialises a preallocated encoder. Encoder should be | |
1066 | * subclassed as part of driver encoder objects. | |
1067 | * | |
1068 | * Returns: | |
1069 | * Zero on success, error code on failure. | |
1070 | */ | |
6bfc56aa | 1071 | int drm_encoder_init(struct drm_device *dev, |
cbc7e221 DA |
1072 | struct drm_encoder *encoder, |
1073 | const struct drm_encoder_funcs *funcs, | |
1074 | int encoder_type) | |
f453ba04 | 1075 | { |
6bfc56aa VS |
1076 | int ret; |
1077 | ||
84849903 | 1078 | drm_modeset_lock_all(dev); |
f453ba04 | 1079 | |
6bfc56aa VS |
1080 | ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
1081 | if (ret) | |
e5748946 | 1082 | goto out_unlock; |
f453ba04 | 1083 | |
6bfc56aa | 1084 | encoder->dev = dev; |
f453ba04 DA |
1085 | encoder->encoder_type = encoder_type; |
1086 | encoder->funcs = funcs; | |
e5748946 JN |
1087 | encoder->name = kasprintf(GFP_KERNEL, "%s-%d", |
1088 | drm_encoder_enum_list[encoder_type].name, | |
1089 | encoder->base.id); | |
1090 | if (!encoder->name) { | |
1091 | ret = -ENOMEM; | |
1092 | goto out_put; | |
1093 | } | |
f453ba04 DA |
1094 | |
1095 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); | |
1096 | dev->mode_config.num_encoder++; | |
1097 | ||
e5748946 JN |
1098 | out_put: |
1099 | if (ret) | |
1100 | drm_mode_object_put(dev, &encoder->base); | |
1101 | ||
1102 | out_unlock: | |
84849903 | 1103 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
1104 | |
1105 | return ret; | |
f453ba04 DA |
1106 | } |
1107 | EXPORT_SYMBOL(drm_encoder_init); | |
1108 | ||
c8e32cc1 DV |
1109 | /** |
1110 | * drm_encoder_cleanup - cleans up an initialised encoder | |
1111 | * @encoder: encoder to cleanup | |
1112 | * | |
1113 | * Cleans up the encoder but doesn't free the object. | |
1114 | */ | |
f453ba04 DA |
1115 | void drm_encoder_cleanup(struct drm_encoder *encoder) |
1116 | { | |
1117 | struct drm_device *dev = encoder->dev; | |
4dfd909f | 1118 | |
84849903 | 1119 | drm_modeset_lock_all(dev); |
f453ba04 | 1120 | drm_mode_object_put(dev, &encoder->base); |
e5748946 | 1121 | kfree(encoder->name); |
f453ba04 | 1122 | list_del(&encoder->head); |
6380c509 | 1123 | dev->mode_config.num_encoder--; |
84849903 | 1124 | drm_modeset_unlock_all(dev); |
a18c0af1 TR |
1125 | |
1126 | memset(encoder, 0, sizeof(*encoder)); | |
f453ba04 DA |
1127 | } |
1128 | EXPORT_SYMBOL(drm_encoder_cleanup); | |
1129 | ||
35f2c3ae | 1130 | /** |
dc415ff9 | 1131 | * drm_universal_plane_init - Initialize a new universal plane object |
35f2c3ae VS |
1132 | * @dev: DRM device |
1133 | * @plane: plane object to init | |
1134 | * @possible_crtcs: bitmask of possible CRTCs | |
1135 | * @funcs: callbacks for the new plane | |
1136 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1137 | * @format_count: number of elements in @formats | |
dc415ff9 | 1138 | * @type: type of plane (overlay, primary, cursor) |
35f2c3ae | 1139 | * |
dc415ff9 | 1140 | * Initializes a plane object of type @type. |
35f2c3ae | 1141 | * |
c8e32cc1 | 1142 | * Returns: |
35f2c3ae VS |
1143 | * Zero on success, error code on failure. |
1144 | */ | |
dc415ff9 MR |
1145 | int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, |
1146 | unsigned long possible_crtcs, | |
1147 | const struct drm_plane_funcs *funcs, | |
1148 | const uint32_t *formats, uint32_t format_count, | |
1149 | enum drm_plane_type type) | |
8cf5c917 | 1150 | { |
6b4959f4 | 1151 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
1152 | int ret; |
1153 | ||
6bfc56aa VS |
1154 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
1155 | if (ret) | |
baf698b0 | 1156 | return ret; |
6bfc56aa | 1157 | |
4d02e2de DV |
1158 | drm_modeset_lock_init(&plane->mutex); |
1159 | ||
4d93914a | 1160 | plane->base.properties = &plane->properties; |
8cf5c917 | 1161 | plane->dev = dev; |
8cf5c917 | 1162 | plane->funcs = funcs; |
2f6c5389 TR |
1163 | plane->format_types = kmalloc_array(format_count, sizeof(uint32_t), |
1164 | GFP_KERNEL); | |
8cf5c917 JB |
1165 | if (!plane->format_types) { |
1166 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); | |
1167 | drm_mode_object_put(dev, &plane->base); | |
baf698b0 | 1168 | return -ENOMEM; |
8cf5c917 JB |
1169 | } |
1170 | ||
308e5bcb | 1171 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
8cf5c917 JB |
1172 | plane->format_count = format_count; |
1173 | plane->possible_crtcs = possible_crtcs; | |
dc415ff9 | 1174 | plane->type = type; |
8cf5c917 | 1175 | |
6b4959f4 RC |
1176 | list_add_tail(&plane->head, &config->plane_list); |
1177 | config->num_total_plane++; | |
dc415ff9 | 1178 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) |
6b4959f4 | 1179 | config->num_overlay_plane++; |
8cf5c917 | 1180 | |
9922ab5a | 1181 | drm_object_attach_property(&plane->base, |
6b4959f4 | 1182 | config->plane_type_property, |
9922ab5a RC |
1183 | plane->type); |
1184 | ||
6b4959f4 RC |
1185 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
1186 | drm_object_attach_property(&plane->base, config->prop_fb_id, 0); | |
1187 | drm_object_attach_property(&plane->base, config->prop_crtc_id, 0); | |
1188 | drm_object_attach_property(&plane->base, config->prop_crtc_x, 0); | |
1189 | drm_object_attach_property(&plane->base, config->prop_crtc_y, 0); | |
1190 | drm_object_attach_property(&plane->base, config->prop_crtc_w, 0); | |
1191 | drm_object_attach_property(&plane->base, config->prop_crtc_h, 0); | |
1192 | drm_object_attach_property(&plane->base, config->prop_src_x, 0); | |
1193 | drm_object_attach_property(&plane->base, config->prop_src_y, 0); | |
1194 | drm_object_attach_property(&plane->base, config->prop_src_w, 0); | |
1195 | drm_object_attach_property(&plane->base, config->prop_src_h, 0); | |
1196 | } | |
1197 | ||
baf698b0 | 1198 | return 0; |
8cf5c917 | 1199 | } |
dc415ff9 MR |
1200 | EXPORT_SYMBOL(drm_universal_plane_init); |
1201 | ||
1202 | /** | |
1203 | * drm_plane_init - Initialize a legacy plane | |
1204 | * @dev: DRM device | |
1205 | * @plane: plane object to init | |
1206 | * @possible_crtcs: bitmask of possible CRTCs | |
1207 | * @funcs: callbacks for the new plane | |
1208 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1209 | * @format_count: number of elements in @formats | |
1210 | * @is_primary: plane type (primary vs overlay) | |
1211 | * | |
1212 | * Legacy API to initialize a DRM plane. | |
1213 | * | |
1214 | * New drivers should call drm_universal_plane_init() instead. | |
1215 | * | |
1216 | * Returns: | |
1217 | * Zero on success, error code on failure. | |
1218 | */ | |
1219 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, | |
1220 | unsigned long possible_crtcs, | |
1221 | const struct drm_plane_funcs *funcs, | |
1222 | const uint32_t *formats, uint32_t format_count, | |
1223 | bool is_primary) | |
1224 | { | |
1225 | enum drm_plane_type type; | |
1226 | ||
1227 | type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; | |
1228 | return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, | |
1229 | formats, format_count, type); | |
1230 | } | |
8cf5c917 JB |
1231 | EXPORT_SYMBOL(drm_plane_init); |
1232 | ||
35f2c3ae VS |
1233 | /** |
1234 | * drm_plane_cleanup - Clean up the core plane usage | |
1235 | * @plane: plane to cleanup | |
1236 | * | |
1237 | * This function cleans up @plane and removes it from the DRM mode setting | |
1238 | * core. Note that the function does *not* free the plane structure itself, | |
1239 | * this is the responsibility of the caller. | |
1240 | */ | |
8cf5c917 JB |
1241 | void drm_plane_cleanup(struct drm_plane *plane) |
1242 | { | |
1243 | struct drm_device *dev = plane->dev; | |
1244 | ||
84849903 | 1245 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1246 | kfree(plane->format_types); |
1247 | drm_mode_object_put(dev, &plane->base); | |
dc415ff9 MR |
1248 | |
1249 | BUG_ON(list_empty(&plane->head)); | |
1250 | ||
1251 | list_del(&plane->head); | |
1252 | dev->mode_config.num_total_plane--; | |
1253 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) | |
1254 | dev->mode_config.num_overlay_plane--; | |
84849903 | 1255 | drm_modeset_unlock_all(dev); |
3009c037 TR |
1256 | |
1257 | WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); | |
1258 | if (plane->state && plane->funcs->atomic_destroy_state) | |
1259 | plane->funcs->atomic_destroy_state(plane, plane->state); | |
a18c0af1 TR |
1260 | |
1261 | memset(plane, 0, sizeof(*plane)); | |
8cf5c917 JB |
1262 | } |
1263 | EXPORT_SYMBOL(drm_plane_cleanup); | |
1264 | ||
10f637bf DV |
1265 | /** |
1266 | * drm_plane_index - find the index of a registered plane | |
1267 | * @plane: plane to find index for | |
1268 | * | |
1269 | * Given a registered plane, return the index of that CRTC within a DRM | |
1270 | * device's list of planes. | |
1271 | */ | |
1272 | unsigned int drm_plane_index(struct drm_plane *plane) | |
1273 | { | |
1274 | unsigned int index = 0; | |
1275 | struct drm_plane *tmp; | |
1276 | ||
1277 | list_for_each_entry(tmp, &plane->dev->mode_config.plane_list, head) { | |
1278 | if (tmp == plane) | |
1279 | return index; | |
1280 | ||
1281 | index++; | |
1282 | } | |
1283 | ||
1284 | BUG(); | |
1285 | } | |
1286 | EXPORT_SYMBOL(drm_plane_index); | |
1287 | ||
35f2c3ae VS |
1288 | /** |
1289 | * drm_plane_force_disable - Forcibly disable a plane | |
1290 | * @plane: plane to disable | |
1291 | * | |
1292 | * Forces the plane to be disabled. | |
1293 | * | |
1294 | * Used when the plane's current framebuffer is destroyed, | |
1295 | * and when restoring fbdev mode. | |
1296 | */ | |
9125e618 VS |
1297 | void drm_plane_force_disable(struct drm_plane *plane) |
1298 | { | |
1299 | int ret; | |
1300 | ||
3d30a59b | 1301 | if (!plane->fb) |
9125e618 VS |
1302 | return; |
1303 | ||
3d30a59b | 1304 | plane->old_fb = plane->fb; |
9125e618 | 1305 | ret = plane->funcs->disable_plane(plane); |
731cce48 | 1306 | if (ret) { |
9125e618 | 1307 | DRM_ERROR("failed to disable plane with busy fb\n"); |
3d30a59b | 1308 | plane->old_fb = NULL; |
731cce48 DV |
1309 | return; |
1310 | } | |
9125e618 | 1311 | /* disconnect the plane from the fb and crtc: */ |
220dd2bc | 1312 | drm_framebuffer_unreference(plane->old_fb); |
3d30a59b | 1313 | plane->old_fb = NULL; |
9125e618 VS |
1314 | plane->fb = NULL; |
1315 | plane->crtc = NULL; | |
1316 | } | |
1317 | EXPORT_SYMBOL(drm_plane_force_disable); | |
1318 | ||
6b4959f4 | 1319 | static int drm_mode_create_standard_properties(struct drm_device *dev) |
f453ba04 | 1320 | { |
356af0e1 | 1321 | struct drm_property *prop; |
f453ba04 DA |
1322 | |
1323 | /* | |
1324 | * Standard properties (apply to all connectors) | |
1325 | */ | |
356af0e1 | 1326 | prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | |
f453ba04 DA |
1327 | DRM_MODE_PROP_IMMUTABLE, |
1328 | "EDID", 0); | |
356af0e1 RC |
1329 | if (!prop) |
1330 | return -ENOMEM; | |
1331 | dev->mode_config.edid_property = prop; | |
f453ba04 | 1332 | |
356af0e1 | 1333 | prop = drm_property_create_enum(dev, 0, |
4a67d391 SH |
1334 | "DPMS", drm_dpms_enum_list, |
1335 | ARRAY_SIZE(drm_dpms_enum_list)); | |
356af0e1 RC |
1336 | if (!prop) |
1337 | return -ENOMEM; | |
1338 | dev->mode_config.dpms_property = prop; | |
6f134d7b | 1339 | |
356af0e1 RC |
1340 | prop = drm_property_create(dev, |
1341 | DRM_MODE_PROP_BLOB | | |
1342 | DRM_MODE_PROP_IMMUTABLE, | |
1343 | "PATH", 0); | |
1344 | if (!prop) | |
1345 | return -ENOMEM; | |
1346 | dev->mode_config.path_property = prop; | |
f453ba04 | 1347 | |
356af0e1 RC |
1348 | prop = drm_property_create(dev, |
1349 | DRM_MODE_PROP_BLOB | | |
1350 | DRM_MODE_PROP_IMMUTABLE, | |
1351 | "TILE", 0); | |
1352 | if (!prop) | |
1353 | return -ENOMEM; | |
1354 | dev->mode_config.tile_property = prop; | |
9922ab5a | 1355 | |
6b4959f4 | 1356 | prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
9922ab5a RC |
1357 | "type", drm_plane_type_enum_list, |
1358 | ARRAY_SIZE(drm_plane_type_enum_list)); | |
6b4959f4 RC |
1359 | if (!prop) |
1360 | return -ENOMEM; | |
1361 | dev->mode_config.plane_type_property = prop; | |
1362 | ||
1363 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1364 | "SRC_X", 0, UINT_MAX); | |
1365 | if (!prop) | |
1366 | return -ENOMEM; | |
1367 | dev->mode_config.prop_src_x = prop; | |
1368 | ||
1369 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1370 | "SRC_Y", 0, UINT_MAX); | |
1371 | if (!prop) | |
1372 | return -ENOMEM; | |
1373 | dev->mode_config.prop_src_y = prop; | |
1374 | ||
1375 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1376 | "SRC_W", 0, UINT_MAX); | |
1377 | if (!prop) | |
1378 | return -ENOMEM; | |
1379 | dev->mode_config.prop_src_w = prop; | |
1380 | ||
1381 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1382 | "SRC_H", 0, UINT_MAX); | |
1383 | if (!prop) | |
1384 | return -ENOMEM; | |
1385 | dev->mode_config.prop_src_h = prop; | |
1386 | ||
1387 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
1388 | "CRTC_X", INT_MIN, INT_MAX); | |
1389 | if (!prop) | |
1390 | return -ENOMEM; | |
1391 | dev->mode_config.prop_crtc_x = prop; | |
1392 | ||
1393 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
1394 | "CRTC_Y", INT_MIN, INT_MAX); | |
1395 | if (!prop) | |
1396 | return -ENOMEM; | |
1397 | dev->mode_config.prop_crtc_y = prop; | |
1398 | ||
1399 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1400 | "CRTC_W", 0, INT_MAX); | |
1401 | if (!prop) | |
1402 | return -ENOMEM; | |
1403 | dev->mode_config.prop_crtc_w = prop; | |
1404 | ||
1405 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1406 | "CRTC_H", 0, INT_MAX); | |
1407 | if (!prop) | |
1408 | return -ENOMEM; | |
1409 | dev->mode_config.prop_crtc_h = prop; | |
1410 | ||
1411 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, | |
1412 | "FB_ID", DRM_MODE_OBJECT_FB); | |
1413 | if (!prop) | |
1414 | return -ENOMEM; | |
1415 | dev->mode_config.prop_fb_id = prop; | |
1416 | ||
1417 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, | |
1418 | "CRTC_ID", DRM_MODE_OBJECT_CRTC); | |
1419 | if (!prop) | |
1420 | return -ENOMEM; | |
1421 | dev->mode_config.prop_crtc_id = prop; | |
9922ab5a | 1422 | |
eab3bbef DV |
1423 | prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, |
1424 | "ACTIVE"); | |
1425 | if (!prop) | |
1426 | return -ENOMEM; | |
1427 | dev->mode_config.prop_active = prop; | |
1428 | ||
9922ab5a RC |
1429 | return 0; |
1430 | } | |
1431 | ||
f453ba04 DA |
1432 | /** |
1433 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties | |
1434 | * @dev: DRM device | |
1435 | * | |
1436 | * Called by a driver the first time a DVI-I connector is made. | |
1437 | */ | |
1438 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) | |
1439 | { | |
1440 | struct drm_property *dvi_i_selector; | |
1441 | struct drm_property *dvi_i_subconnector; | |
f453ba04 DA |
1442 | |
1443 | if (dev->mode_config.dvi_i_select_subconnector_property) | |
1444 | return 0; | |
1445 | ||
1446 | dvi_i_selector = | |
4a67d391 | 1447 | drm_property_create_enum(dev, 0, |
f453ba04 | 1448 | "select subconnector", |
4a67d391 | 1449 | drm_dvi_i_select_enum_list, |
f453ba04 | 1450 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
f453ba04 DA |
1451 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
1452 | ||
4a67d391 | 1453 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
f453ba04 | 1454 | "subconnector", |
4a67d391 | 1455 | drm_dvi_i_subconnector_enum_list, |
f453ba04 | 1456 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
f453ba04 DA |
1457 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
1458 | ||
1459 | return 0; | |
1460 | } | |
1461 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); | |
1462 | ||
1463 | /** | |
1464 | * drm_create_tv_properties - create TV specific connector properties | |
1465 | * @dev: DRM device | |
1466 | * @num_modes: number of different TV formats (modes) supported | |
1467 | * @modes: array of pointers to strings containing name of each format | |
1468 | * | |
1469 | * Called by a driver's TV initialization routine, this function creates | |
1470 | * the TV specific connector properties for a given device. Caller is | |
1471 | * responsible for allocating a list of format names and passing them to | |
1472 | * this routine. | |
1473 | */ | |
2f763312 TR |
1474 | int drm_mode_create_tv_properties(struct drm_device *dev, |
1475 | unsigned int num_modes, | |
f453ba04 DA |
1476 | char *modes[]) |
1477 | { | |
1478 | struct drm_property *tv_selector; | |
1479 | struct drm_property *tv_subconnector; | |
2f763312 | 1480 | unsigned int i; |
f453ba04 DA |
1481 | |
1482 | if (dev->mode_config.tv_select_subconnector_property) | |
1483 | return 0; | |
1484 | ||
1485 | /* | |
1486 | * Basic connector properties | |
1487 | */ | |
4a67d391 | 1488 | tv_selector = drm_property_create_enum(dev, 0, |
f453ba04 | 1489 | "select subconnector", |
4a67d391 | 1490 | drm_tv_select_enum_list, |
f453ba04 | 1491 | ARRAY_SIZE(drm_tv_select_enum_list)); |
f453ba04 DA |
1492 | dev->mode_config.tv_select_subconnector_property = tv_selector; |
1493 | ||
1494 | tv_subconnector = | |
4a67d391 SH |
1495 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1496 | "subconnector", | |
1497 | drm_tv_subconnector_enum_list, | |
f453ba04 | 1498 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
f453ba04 DA |
1499 | dev->mode_config.tv_subconnector_property = tv_subconnector; |
1500 | ||
1501 | /* | |
1502 | * Other, TV specific properties: margins & TV modes. | |
1503 | */ | |
1504 | dev->mode_config.tv_left_margin_property = | |
d9bc3c02 | 1505 | drm_property_create_range(dev, 0, "left margin", 0, 100); |
f453ba04 DA |
1506 | |
1507 | dev->mode_config.tv_right_margin_property = | |
d9bc3c02 | 1508 | drm_property_create_range(dev, 0, "right margin", 0, 100); |
f453ba04 DA |
1509 | |
1510 | dev->mode_config.tv_top_margin_property = | |
d9bc3c02 | 1511 | drm_property_create_range(dev, 0, "top margin", 0, 100); |
f453ba04 DA |
1512 | |
1513 | dev->mode_config.tv_bottom_margin_property = | |
d9bc3c02 | 1514 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); |
f453ba04 DA |
1515 | |
1516 | dev->mode_config.tv_mode_property = | |
1517 | drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
1518 | "mode", num_modes); | |
1519 | for (i = 0; i < num_modes; i++) | |
1520 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, | |
1521 | i, modes[i]); | |
1522 | ||
b6b7902e | 1523 | dev->mode_config.tv_brightness_property = |
d9bc3c02 | 1524 | drm_property_create_range(dev, 0, "brightness", 0, 100); |
b6b7902e FJ |
1525 | |
1526 | dev->mode_config.tv_contrast_property = | |
d9bc3c02 | 1527 | drm_property_create_range(dev, 0, "contrast", 0, 100); |
b6b7902e FJ |
1528 | |
1529 | dev->mode_config.tv_flicker_reduction_property = | |
d9bc3c02 | 1530 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); |
b6b7902e | 1531 | |
a75f0236 | 1532 | dev->mode_config.tv_overscan_property = |
d9bc3c02 | 1533 | drm_property_create_range(dev, 0, "overscan", 0, 100); |
a75f0236 FJ |
1534 | |
1535 | dev->mode_config.tv_saturation_property = | |
d9bc3c02 | 1536 | drm_property_create_range(dev, 0, "saturation", 0, 100); |
a75f0236 FJ |
1537 | |
1538 | dev->mode_config.tv_hue_property = | |
d9bc3c02 | 1539 | drm_property_create_range(dev, 0, "hue", 0, 100); |
a75f0236 | 1540 | |
f453ba04 DA |
1541 | return 0; |
1542 | } | |
1543 | EXPORT_SYMBOL(drm_mode_create_tv_properties); | |
1544 | ||
1545 | /** | |
1546 | * drm_mode_create_scaling_mode_property - create scaling mode property | |
1547 | * @dev: DRM device | |
1548 | * | |
1549 | * Called by a driver the first time it's needed, must be attached to desired | |
1550 | * connectors. | |
1551 | */ | |
1552 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) | |
1553 | { | |
1554 | struct drm_property *scaling_mode; | |
f453ba04 DA |
1555 | |
1556 | if (dev->mode_config.scaling_mode_property) | |
1557 | return 0; | |
1558 | ||
1559 | scaling_mode = | |
4a67d391 SH |
1560 | drm_property_create_enum(dev, 0, "scaling mode", |
1561 | drm_scaling_mode_enum_list, | |
f453ba04 | 1562 | ARRAY_SIZE(drm_scaling_mode_enum_list)); |
f453ba04 DA |
1563 | |
1564 | dev->mode_config.scaling_mode_property = scaling_mode; | |
1565 | ||
1566 | return 0; | |
1567 | } | |
1568 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); | |
1569 | ||
ff587e45 VK |
1570 | /** |
1571 | * drm_mode_create_aspect_ratio_property - create aspect ratio property | |
1572 | * @dev: DRM device | |
1573 | * | |
1574 | * Called by a driver the first time it's needed, must be attached to desired | |
1575 | * connectors. | |
1576 | * | |
1577 | * Returns: | |
1a498633 | 1578 | * Zero on success, negative errno on failure. |
ff587e45 VK |
1579 | */ |
1580 | int drm_mode_create_aspect_ratio_property(struct drm_device *dev) | |
1581 | { | |
1582 | if (dev->mode_config.aspect_ratio_property) | |
1583 | return 0; | |
1584 | ||
1585 | dev->mode_config.aspect_ratio_property = | |
1586 | drm_property_create_enum(dev, 0, "aspect ratio", | |
1587 | drm_aspect_ratio_enum_list, | |
1588 | ARRAY_SIZE(drm_aspect_ratio_enum_list)); | |
1589 | ||
1590 | if (dev->mode_config.aspect_ratio_property == NULL) | |
1591 | return -ENOMEM; | |
1592 | ||
1593 | return 0; | |
1594 | } | |
1595 | EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); | |
1596 | ||
884840aa JB |
1597 | /** |
1598 | * drm_mode_create_dirty_property - create dirty property | |
1599 | * @dev: DRM device | |
1600 | * | |
1601 | * Called by a driver the first time it's needed, must be attached to desired | |
1602 | * connectors. | |
1603 | */ | |
1604 | int drm_mode_create_dirty_info_property(struct drm_device *dev) | |
1605 | { | |
1606 | struct drm_property *dirty_info; | |
884840aa JB |
1607 | |
1608 | if (dev->mode_config.dirty_info_property) | |
1609 | return 0; | |
1610 | ||
1611 | dirty_info = | |
4a67d391 | 1612 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
884840aa | 1613 | "dirty", |
4a67d391 | 1614 | drm_dirty_info_enum_list, |
884840aa | 1615 | ARRAY_SIZE(drm_dirty_info_enum_list)); |
884840aa JB |
1616 | dev->mode_config.dirty_info_property = dirty_info; |
1617 | ||
1618 | return 0; | |
1619 | } | |
1620 | EXPORT_SYMBOL(drm_mode_create_dirty_info_property); | |
1621 | ||
5bb2bbf5 DA |
1622 | /** |
1623 | * drm_mode_create_suggested_offset_properties - create suggests offset properties | |
1624 | * @dev: DRM device | |
1625 | * | |
1626 | * Create the the suggested x/y offset property for connectors. | |
1627 | */ | |
1628 | int drm_mode_create_suggested_offset_properties(struct drm_device *dev) | |
1629 | { | |
1630 | if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property) | |
1631 | return 0; | |
1632 | ||
1633 | dev->mode_config.suggested_x_property = | |
1634 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff); | |
1635 | ||
1636 | dev->mode_config.suggested_y_property = | |
1637 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff); | |
1638 | ||
1639 | if (dev->mode_config.suggested_x_property == NULL || | |
1640 | dev->mode_config.suggested_y_property == NULL) | |
1641 | return -ENOMEM; | |
1642 | return 0; | |
1643 | } | |
1644 | EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties); | |
1645 | ||
ea9cbb06 | 1646 | static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) |
f453ba04 DA |
1647 | { |
1648 | uint32_t total_objects = 0; | |
1649 | ||
1650 | total_objects += dev->mode_config.num_crtc; | |
1651 | total_objects += dev->mode_config.num_connector; | |
1652 | total_objects += dev->mode_config.num_encoder; | |
1653 | ||
bd3f0ff9 | 1654 | group->id_list = kcalloc(total_objects, sizeof(uint32_t), GFP_KERNEL); |
f453ba04 DA |
1655 | if (!group->id_list) |
1656 | return -ENOMEM; | |
1657 | ||
1658 | group->num_crtcs = 0; | |
1659 | group->num_connectors = 0; | |
1660 | group->num_encoders = 0; | |
1661 | return 0; | |
1662 | } | |
1663 | ||
ad222799 DA |
1664 | void drm_mode_group_destroy(struct drm_mode_group *group) |
1665 | { | |
1666 | kfree(group->id_list); | |
1667 | group->id_list = NULL; | |
1668 | } | |
1669 | ||
c8e32cc1 DV |
1670 | /* |
1671 | * NOTE: Driver's shouldn't ever call drm_mode_group_init_legacy_group - it is | |
1672 | * the drm core's responsibility to set up mode control groups. | |
1673 | */ | |
f453ba04 DA |
1674 | int drm_mode_group_init_legacy_group(struct drm_device *dev, |
1675 | struct drm_mode_group *group) | |
1676 | { | |
1677 | struct drm_crtc *crtc; | |
1678 | struct drm_encoder *encoder; | |
1679 | struct drm_connector *connector; | |
1680 | int ret; | |
1681 | ||
0cc0b223 TR |
1682 | ret = drm_mode_group_init(dev, group); |
1683 | if (ret) | |
f453ba04 DA |
1684 | return ret; |
1685 | ||
1686 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
1687 | group->id_list[group->num_crtcs++] = crtc->base.id; | |
1688 | ||
1689 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
1690 | group->id_list[group->num_crtcs + group->num_encoders++] = | |
1691 | encoder->base.id; | |
1692 | ||
1693 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
1694 | group->id_list[group->num_crtcs + group->num_encoders + | |
1695 | group->num_connectors++] = connector->base.id; | |
1696 | ||
1697 | return 0; | |
1698 | } | |
9c1dfc55 | 1699 | EXPORT_SYMBOL(drm_mode_group_init_legacy_group); |
f453ba04 | 1700 | |
2390cd11 DA |
1701 | void drm_reinit_primary_mode_group(struct drm_device *dev) |
1702 | { | |
1703 | drm_modeset_lock_all(dev); | |
1704 | drm_mode_group_destroy(&dev->primary->mode_group); | |
1705 | drm_mode_group_init_legacy_group(dev, &dev->primary->mode_group); | |
1706 | drm_modeset_unlock_all(dev); | |
1707 | } | |
1708 | EXPORT_SYMBOL(drm_reinit_primary_mode_group); | |
1709 | ||
f453ba04 DA |
1710 | /** |
1711 | * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo | |
1712 | * @out: drm_mode_modeinfo struct to return to the user | |
1713 | * @in: drm_display_mode to use | |
1714 | * | |
f453ba04 DA |
1715 | * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to |
1716 | * the user. | |
1717 | */ | |
93bbf6db VS |
1718 | static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, |
1719 | const struct drm_display_mode *in) | |
f453ba04 | 1720 | { |
e36fae38 VS |
1721 | WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX || |
1722 | in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX || | |
1723 | in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX || | |
1724 | in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX || | |
1725 | in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX, | |
1726 | "timing values too large for mode info\n"); | |
1727 | ||
f453ba04 DA |
1728 | out->clock = in->clock; |
1729 | out->hdisplay = in->hdisplay; | |
1730 | out->hsync_start = in->hsync_start; | |
1731 | out->hsync_end = in->hsync_end; | |
1732 | out->htotal = in->htotal; | |
1733 | out->hskew = in->hskew; | |
1734 | out->vdisplay = in->vdisplay; | |
1735 | out->vsync_start = in->vsync_start; | |
1736 | out->vsync_end = in->vsync_end; | |
1737 | out->vtotal = in->vtotal; | |
1738 | out->vscan = in->vscan; | |
1739 | out->vrefresh = in->vrefresh; | |
1740 | out->flags = in->flags; | |
1741 | out->type = in->type; | |
1742 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1743 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
1744 | } | |
1745 | ||
1746 | /** | |
74afee7d | 1747 | * drm_crtc_convert_umode - convert a modeinfo into a drm_display_mode |
f453ba04 DA |
1748 | * @out: drm_display_mode to return to the user |
1749 | * @in: drm_mode_modeinfo to use | |
1750 | * | |
f453ba04 DA |
1751 | * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to |
1752 | * the caller. | |
90367bf6 | 1753 | * |
c8e32cc1 | 1754 | * Returns: |
1a498633 | 1755 | * Zero on success, negative errno on failure. |
f453ba04 | 1756 | */ |
93bbf6db VS |
1757 | static int drm_crtc_convert_umode(struct drm_display_mode *out, |
1758 | const struct drm_mode_modeinfo *in) | |
f453ba04 | 1759 | { |
90367bf6 VS |
1760 | if (in->clock > INT_MAX || in->vrefresh > INT_MAX) |
1761 | return -ERANGE; | |
1762 | ||
5848ad40 DL |
1763 | if ((in->flags & DRM_MODE_FLAG_3D_MASK) > DRM_MODE_FLAG_3D_MAX) |
1764 | return -EINVAL; | |
1765 | ||
f453ba04 DA |
1766 | out->clock = in->clock; |
1767 | out->hdisplay = in->hdisplay; | |
1768 | out->hsync_start = in->hsync_start; | |
1769 | out->hsync_end = in->hsync_end; | |
1770 | out->htotal = in->htotal; | |
1771 | out->hskew = in->hskew; | |
1772 | out->vdisplay = in->vdisplay; | |
1773 | out->vsync_start = in->vsync_start; | |
1774 | out->vsync_end = in->vsync_end; | |
1775 | out->vtotal = in->vtotal; | |
1776 | out->vscan = in->vscan; | |
1777 | out->vrefresh = in->vrefresh; | |
1778 | out->flags = in->flags; | |
1779 | out->type = in->type; | |
1780 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1781 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
90367bf6 VS |
1782 | |
1783 | return 0; | |
f453ba04 DA |
1784 | } |
1785 | ||
1786 | /** | |
1787 | * drm_mode_getresources - get graphics configuration | |
065a50ed DV |
1788 | * @dev: drm device for the ioctl |
1789 | * @data: data pointer for the ioctl | |
1790 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1791 | * |
f453ba04 DA |
1792 | * Construct a set of configuration description structures and return |
1793 | * them to the user, including CRTC, connector and framebuffer configuration. | |
1794 | * | |
1795 | * Called by the user via ioctl. | |
1796 | * | |
c8e32cc1 | 1797 | * Returns: |
1a498633 | 1798 | * Zero on success, negative errno on failure. |
f453ba04 DA |
1799 | */ |
1800 | int drm_mode_getresources(struct drm_device *dev, void *data, | |
1801 | struct drm_file *file_priv) | |
1802 | { | |
1803 | struct drm_mode_card_res *card_res = data; | |
1804 | struct list_head *lh; | |
1805 | struct drm_framebuffer *fb; | |
1806 | struct drm_connector *connector; | |
1807 | struct drm_crtc *crtc; | |
1808 | struct drm_encoder *encoder; | |
1809 | int ret = 0; | |
1810 | int connector_count = 0; | |
1811 | int crtc_count = 0; | |
1812 | int fb_count = 0; | |
1813 | int encoder_count = 0; | |
1814 | int copied = 0, i; | |
1815 | uint32_t __user *fb_id; | |
1816 | uint32_t __user *crtc_id; | |
1817 | uint32_t __user *connector_id; | |
1818 | uint32_t __user *encoder_id; | |
1819 | struct drm_mode_group *mode_group; | |
1820 | ||
fb3b06c8 DA |
1821 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1822 | return -EINVAL; | |
1823 | ||
f453ba04 | 1824 | |
4b096ac1 | 1825 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
1826 | /* |
1827 | * For the non-control nodes we need to limit the list of resources | |
1828 | * by IDs in the group list for this node | |
1829 | */ | |
1830 | list_for_each(lh, &file_priv->fbs) | |
1831 | fb_count++; | |
1832 | ||
4b096ac1 DV |
1833 | /* handle this in 4 parts */ |
1834 | /* FBs */ | |
1835 | if (card_res->count_fbs >= fb_count) { | |
1836 | copied = 0; | |
1837 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; | |
1838 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { | |
1839 | if (put_user(fb->base.id, fb_id + copied)) { | |
1840 | mutex_unlock(&file_priv->fbs_lock); | |
1841 | return -EFAULT; | |
1842 | } | |
1843 | copied++; | |
1844 | } | |
1845 | } | |
1846 | card_res->count_fbs = fb_count; | |
1847 | mutex_unlock(&file_priv->fbs_lock); | |
1848 | ||
fcf93f69 DV |
1849 | /* mode_config.mutex protects the connector list against e.g. DP MST |
1850 | * connector hot-adding. CRTC/Plane lists are invariant. */ | |
1851 | mutex_lock(&dev->mode_config.mutex); | |
43683057 | 1852 | if (!drm_is_primary_client(file_priv)) { |
f453ba04 | 1853 | |
09f308f7 | 1854 | mode_group = NULL; |
f453ba04 DA |
1855 | list_for_each(lh, &dev->mode_config.crtc_list) |
1856 | crtc_count++; | |
1857 | ||
1858 | list_for_each(lh, &dev->mode_config.connector_list) | |
1859 | connector_count++; | |
1860 | ||
1861 | list_for_each(lh, &dev->mode_config.encoder_list) | |
1862 | encoder_count++; | |
1863 | } else { | |
1864 | ||
09f308f7 | 1865 | mode_group = &file_priv->master->minor->mode_group; |
f453ba04 DA |
1866 | crtc_count = mode_group->num_crtcs; |
1867 | connector_count = mode_group->num_connectors; | |
1868 | encoder_count = mode_group->num_encoders; | |
1869 | } | |
1870 | ||
1871 | card_res->max_height = dev->mode_config.max_height; | |
1872 | card_res->min_height = dev->mode_config.min_height; | |
1873 | card_res->max_width = dev->mode_config.max_width; | |
1874 | card_res->min_width = dev->mode_config.min_width; | |
1875 | ||
f453ba04 DA |
1876 | /* CRTCs */ |
1877 | if (card_res->count_crtcs >= crtc_count) { | |
1878 | copied = 0; | |
1879 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; | |
09f308f7 | 1880 | if (!mode_group) { |
f453ba04 DA |
1881 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, |
1882 | head) { | |
9440106b | 1883 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
1884 | if (put_user(crtc->base.id, crtc_id + copied)) { |
1885 | ret = -EFAULT; | |
1886 | goto out; | |
1887 | } | |
1888 | copied++; | |
1889 | } | |
1890 | } else { | |
1891 | for (i = 0; i < mode_group->num_crtcs; i++) { | |
1892 | if (put_user(mode_group->id_list[i], | |
1893 | crtc_id + copied)) { | |
1894 | ret = -EFAULT; | |
1895 | goto out; | |
1896 | } | |
1897 | copied++; | |
1898 | } | |
1899 | } | |
1900 | } | |
1901 | card_res->count_crtcs = crtc_count; | |
1902 | ||
1903 | /* Encoders */ | |
1904 | if (card_res->count_encoders >= encoder_count) { | |
1905 | copied = 0; | |
1906 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; | |
09f308f7 | 1907 | if (!mode_group) { |
f453ba04 DA |
1908 | list_for_each_entry(encoder, |
1909 | &dev->mode_config.encoder_list, | |
1910 | head) { | |
9440106b | 1911 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, |
83a8cfd3 | 1912 | encoder->name); |
f453ba04 DA |
1913 | if (put_user(encoder->base.id, encoder_id + |
1914 | copied)) { | |
1915 | ret = -EFAULT; | |
1916 | goto out; | |
1917 | } | |
1918 | copied++; | |
1919 | } | |
1920 | } else { | |
1921 | for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { | |
1922 | if (put_user(mode_group->id_list[i], | |
1923 | encoder_id + copied)) { | |
1924 | ret = -EFAULT; | |
1925 | goto out; | |
1926 | } | |
1927 | copied++; | |
1928 | } | |
1929 | ||
1930 | } | |
1931 | } | |
1932 | card_res->count_encoders = encoder_count; | |
1933 | ||
1934 | /* Connectors */ | |
1935 | if (card_res->count_connectors >= connector_count) { | |
1936 | copied = 0; | |
1937 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; | |
09f308f7 | 1938 | if (!mode_group) { |
f453ba04 DA |
1939 | list_for_each_entry(connector, |
1940 | &dev->mode_config.connector_list, | |
1941 | head) { | |
9440106b JG |
1942 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
1943 | connector->base.id, | |
25933820 | 1944 | connector->name); |
f453ba04 DA |
1945 | if (put_user(connector->base.id, |
1946 | connector_id + copied)) { | |
1947 | ret = -EFAULT; | |
1948 | goto out; | |
1949 | } | |
1950 | copied++; | |
1951 | } | |
1952 | } else { | |
1953 | int start = mode_group->num_crtcs + | |
1954 | mode_group->num_encoders; | |
1955 | for (i = start; i < start + mode_group->num_connectors; i++) { | |
1956 | if (put_user(mode_group->id_list[i], | |
1957 | connector_id + copied)) { | |
1958 | ret = -EFAULT; | |
1959 | goto out; | |
1960 | } | |
1961 | copied++; | |
1962 | } | |
1963 | } | |
1964 | } | |
1965 | card_res->count_connectors = connector_count; | |
1966 | ||
9440106b | 1967 | DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, |
f453ba04 DA |
1968 | card_res->count_connectors, card_res->count_encoders); |
1969 | ||
1970 | out: | |
fcf93f69 | 1971 | mutex_unlock(&dev->mode_config.mutex); |
f453ba04 DA |
1972 | return ret; |
1973 | } | |
1974 | ||
1975 | /** | |
1976 | * drm_mode_getcrtc - get CRTC configuration | |
065a50ed DV |
1977 | * @dev: drm device for the ioctl |
1978 | * @data: data pointer for the ioctl | |
1979 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1980 | * |
f453ba04 DA |
1981 | * Construct a CRTC configuration structure to return to the user. |
1982 | * | |
1983 | * Called by the user via ioctl. | |
1984 | * | |
c8e32cc1 | 1985 | * Returns: |
1a498633 | 1986 | * Zero on success, negative errno on failure. |
f453ba04 DA |
1987 | */ |
1988 | int drm_mode_getcrtc(struct drm_device *dev, | |
1989 | void *data, struct drm_file *file_priv) | |
1990 | { | |
1991 | struct drm_mode_crtc *crtc_resp = data; | |
1992 | struct drm_crtc *crtc; | |
f453ba04 | 1993 | |
fb3b06c8 DA |
1994 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1995 | return -EINVAL; | |
1996 | ||
a2b34e22 | 1997 | crtc = drm_crtc_find(dev, crtc_resp->crtc_id); |
fcf93f69 DV |
1998 | if (!crtc) |
1999 | return -ENOENT; | |
f453ba04 | 2000 | |
fcf93f69 | 2001 | drm_modeset_lock_crtc(crtc, crtc->primary); |
f453ba04 | 2002 | crtc_resp->gamma_size = crtc->gamma_size; |
f4510a27 MR |
2003 | if (crtc->primary->fb) |
2004 | crtc_resp->fb_id = crtc->primary->fb->base.id; | |
f453ba04 DA |
2005 | else |
2006 | crtc_resp->fb_id = 0; | |
2007 | ||
31c946e8 DV |
2008 | if (crtc->state) { |
2009 | crtc_resp->x = crtc->primary->state->src_x >> 16; | |
2010 | crtc_resp->y = crtc->primary->state->src_y >> 16; | |
2011 | if (crtc->state->enable) { | |
2012 | drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->state->mode); | |
2013 | crtc_resp->mode_valid = 1; | |
f453ba04 | 2014 | |
31c946e8 DV |
2015 | } else { |
2016 | crtc_resp->mode_valid = 0; | |
2017 | } | |
f453ba04 | 2018 | } else { |
31c946e8 DV |
2019 | crtc_resp->x = crtc->x; |
2020 | crtc_resp->y = crtc->y; | |
2021 | if (crtc->enabled) { | |
2022 | drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); | |
2023 | crtc_resp->mode_valid = 1; | |
2024 | ||
2025 | } else { | |
2026 | crtc_resp->mode_valid = 0; | |
2027 | } | |
f453ba04 | 2028 | } |
fcf93f69 | 2029 | drm_modeset_unlock_crtc(crtc); |
f453ba04 | 2030 | |
baf698b0 | 2031 | return 0; |
f453ba04 DA |
2032 | } |
2033 | ||
61d8e328 DL |
2034 | static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, |
2035 | const struct drm_file *file_priv) | |
2036 | { | |
2037 | /* | |
2038 | * If user-space hasn't configured the driver to expose the stereo 3D | |
2039 | * modes, don't expose them. | |
2040 | */ | |
2041 | if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) | |
2042 | return false; | |
2043 | ||
2044 | return true; | |
2045 | } | |
2046 | ||
abd69c55 DV |
2047 | static struct drm_encoder *drm_connector_get_encoder(struct drm_connector *connector) |
2048 | { | |
2049 | /* For atomic drivers only state objects are synchronously updated and | |
2050 | * protected by modeset locks, so check those first. */ | |
2051 | if (connector->state) | |
2052 | return connector->state->best_encoder; | |
2053 | return connector->encoder; | |
2054 | } | |
2055 | ||
95cbf110 | 2056 | /* helper for getconnector and getproperties ioctls */ |
88a48e29 | 2057 | static int get_properties(struct drm_mode_object *obj, bool atomic, |
95cbf110 RC |
2058 | uint32_t __user *prop_ptr, uint64_t __user *prop_values, |
2059 | uint32_t *arg_count_props) | |
2060 | { | |
88a48e29 RC |
2061 | int props_count; |
2062 | int i, ret, copied; | |
2063 | ||
2064 | props_count = obj->properties->count; | |
2065 | if (!atomic) | |
2066 | props_count -= obj->properties->atomic_count; | |
95cbf110 RC |
2067 | |
2068 | if ((*arg_count_props >= props_count) && props_count) { | |
88a48e29 | 2069 | for (i = 0, copied = 0; copied < props_count; i++) { |
95cbf110 RC |
2070 | struct drm_property *prop = obj->properties->properties[i]; |
2071 | uint64_t val; | |
2072 | ||
88a48e29 RC |
2073 | if ((prop->flags & DRM_MODE_PROP_ATOMIC) && !atomic) |
2074 | continue; | |
2075 | ||
95cbf110 RC |
2076 | ret = drm_object_property_get_value(obj, prop, &val); |
2077 | if (ret) | |
2078 | return ret; | |
2079 | ||
2080 | if (put_user(prop->base.id, prop_ptr + copied)) | |
2081 | return -EFAULT; | |
2082 | ||
2083 | if (put_user(val, prop_values + copied)) | |
2084 | return -EFAULT; | |
2085 | ||
2086 | copied++; | |
2087 | } | |
2088 | } | |
2089 | *arg_count_props = props_count; | |
2090 | ||
2091 | return 0; | |
2092 | } | |
2093 | ||
f453ba04 DA |
2094 | /** |
2095 | * drm_mode_getconnector - get connector configuration | |
065a50ed DV |
2096 | * @dev: drm device for the ioctl |
2097 | * @data: data pointer for the ioctl | |
2098 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2099 | * |
f453ba04 DA |
2100 | * Construct a connector configuration structure to return to the user. |
2101 | * | |
2102 | * Called by the user via ioctl. | |
2103 | * | |
c8e32cc1 | 2104 | * Returns: |
1a498633 | 2105 | * Zero on success, negative errno on failure. |
f453ba04 DA |
2106 | */ |
2107 | int drm_mode_getconnector(struct drm_device *dev, void *data, | |
2108 | struct drm_file *file_priv) | |
2109 | { | |
2110 | struct drm_mode_get_connector *out_resp = data; | |
f453ba04 | 2111 | struct drm_connector *connector; |
abd69c55 | 2112 | struct drm_encoder *encoder; |
f453ba04 DA |
2113 | struct drm_display_mode *mode; |
2114 | int mode_count = 0; | |
f453ba04 DA |
2115 | int encoders_count = 0; |
2116 | int ret = 0; | |
2117 | int copied = 0; | |
2118 | int i; | |
2119 | struct drm_mode_modeinfo u_mode; | |
2120 | struct drm_mode_modeinfo __user *mode_ptr; | |
f453ba04 DA |
2121 | uint32_t __user *encoder_ptr; |
2122 | ||
fb3b06c8 DA |
2123 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2124 | return -EINVAL; | |
2125 | ||
f453ba04 DA |
2126 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
2127 | ||
9440106b | 2128 | DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); |
f453ba04 | 2129 | |
7b24056b | 2130 | mutex_lock(&dev->mode_config.mutex); |
f453ba04 | 2131 | |
a2b34e22 RC |
2132 | connector = drm_connector_find(dev, out_resp->connector_id); |
2133 | if (!connector) { | |
f27657f2 | 2134 | ret = -ENOENT; |
f453ba04 DA |
2135 | goto out; |
2136 | } | |
f453ba04 | 2137 | |
01073b08 TR |
2138 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) |
2139 | if (connector->encoder_ids[i] != 0) | |
f453ba04 | 2140 | encoders_count++; |
f453ba04 DA |
2141 | |
2142 | if (out_resp->count_modes == 0) { | |
2143 | connector->funcs->fill_modes(connector, | |
2144 | dev->mode_config.max_width, | |
2145 | dev->mode_config.max_height); | |
2146 | } | |
2147 | ||
2148 | /* delayed so we get modes regardless of pre-fill_modes state */ | |
2149 | list_for_each_entry(mode, &connector->modes, head) | |
61d8e328 DL |
2150 | if (drm_mode_expose_to_userspace(mode, file_priv)) |
2151 | mode_count++; | |
f453ba04 DA |
2152 | |
2153 | out_resp->connector_id = connector->base.id; | |
2154 | out_resp->connector_type = connector->connector_type; | |
2155 | out_resp->connector_type_id = connector->connector_type_id; | |
2156 | out_resp->mm_width = connector->display_info.width_mm; | |
2157 | out_resp->mm_height = connector->display_info.height_mm; | |
2158 | out_resp->subpixel = connector->display_info.subpixel_order; | |
2159 | out_resp->connection = connector->status; | |
2caa80e7 DV |
2160 | |
2161 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); | |
abd69c55 DV |
2162 | encoder = drm_connector_get_encoder(connector); |
2163 | if (encoder) | |
2164 | out_resp->encoder_id = encoder->base.id; | |
f453ba04 DA |
2165 | else |
2166 | out_resp->encoder_id = 0; | |
2167 | ||
2168 | /* | |
2169 | * This ioctl is called twice, once to determine how much space is | |
2170 | * needed, and the 2nd time to fill it. | |
2171 | */ | |
2172 | if ((out_resp->count_modes >= mode_count) && mode_count) { | |
2173 | copied = 0; | |
81f6c7f8 | 2174 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; |
f453ba04 | 2175 | list_for_each_entry(mode, &connector->modes, head) { |
61d8e328 DL |
2176 | if (!drm_mode_expose_to_userspace(mode, file_priv)) |
2177 | continue; | |
2178 | ||
f453ba04 DA |
2179 | drm_crtc_convert_to_umode(&u_mode, mode); |
2180 | if (copy_to_user(mode_ptr + copied, | |
2181 | &u_mode, sizeof(u_mode))) { | |
2182 | ret = -EFAULT; | |
2183 | goto out; | |
2184 | } | |
2185 | copied++; | |
2186 | } | |
2187 | } | |
2188 | out_resp->count_modes = mode_count; | |
2189 | ||
88a48e29 | 2190 | ret = get_properties(&connector->base, file_priv->atomic, |
95cbf110 RC |
2191 | (uint32_t __user *)(unsigned long)(out_resp->props_ptr), |
2192 | (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr), | |
2193 | &out_resp->count_props); | |
2194 | if (ret) | |
2195 | goto out; | |
f453ba04 DA |
2196 | |
2197 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { | |
2198 | copied = 0; | |
81f6c7f8 | 2199 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); |
f453ba04 DA |
2200 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
2201 | if (connector->encoder_ids[i] != 0) { | |
2202 | if (put_user(connector->encoder_ids[i], | |
2203 | encoder_ptr + copied)) { | |
2204 | ret = -EFAULT; | |
2205 | goto out; | |
2206 | } | |
2207 | copied++; | |
2208 | } | |
2209 | } | |
2210 | } | |
2211 | out_resp->count_encoders = encoders_count; | |
2212 | ||
2213 | out: | |
ccfc0865 | 2214 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
7b24056b DV |
2215 | mutex_unlock(&dev->mode_config.mutex); |
2216 | ||
f453ba04 DA |
2217 | return ret; |
2218 | } | |
2219 | ||
abd69c55 DV |
2220 | static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder) |
2221 | { | |
2222 | struct drm_connector *connector; | |
2223 | struct drm_device *dev = encoder->dev; | |
2224 | bool uses_atomic = false; | |
2225 | ||
2226 | /* For atomic drivers only state objects are synchronously updated and | |
2227 | * protected by modeset locks, so check those first. */ | |
2228 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
2229 | if (!connector->state) | |
2230 | continue; | |
2231 | ||
2232 | uses_atomic = true; | |
2233 | ||
2234 | if (connector->state->best_encoder != encoder) | |
2235 | continue; | |
2236 | ||
2237 | return connector->state->crtc; | |
2238 | } | |
2239 | ||
2240 | /* Don't return stale data (e.g. pending async disable). */ | |
2241 | if (uses_atomic) | |
2242 | return NULL; | |
2243 | ||
2244 | return encoder->crtc; | |
2245 | } | |
2246 | ||
c8e32cc1 DV |
2247 | /** |
2248 | * drm_mode_getencoder - get encoder configuration | |
2249 | * @dev: drm device for the ioctl | |
2250 | * @data: data pointer for the ioctl | |
2251 | * @file_priv: drm file for the ioctl call | |
2252 | * | |
2253 | * Construct a encoder configuration structure to return to the user. | |
2254 | * | |
2255 | * Called by the user via ioctl. | |
2256 | * | |
2257 | * Returns: | |
1a498633 | 2258 | * Zero on success, negative errno on failure. |
c8e32cc1 | 2259 | */ |
f453ba04 DA |
2260 | int drm_mode_getencoder(struct drm_device *dev, void *data, |
2261 | struct drm_file *file_priv) | |
2262 | { | |
2263 | struct drm_mode_get_encoder *enc_resp = data; | |
f453ba04 | 2264 | struct drm_encoder *encoder; |
abd69c55 | 2265 | struct drm_crtc *crtc; |
f453ba04 | 2266 | |
fb3b06c8 DA |
2267 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2268 | return -EINVAL; | |
2269 | ||
a2b34e22 | 2270 | encoder = drm_encoder_find(dev, enc_resp->encoder_id); |
fcf93f69 DV |
2271 | if (!encoder) |
2272 | return -ENOENT; | |
f453ba04 | 2273 | |
fcf93f69 | 2274 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
abd69c55 DV |
2275 | crtc = drm_encoder_get_crtc(encoder); |
2276 | if (crtc) | |
2277 | enc_resp->crtc_id = crtc->base.id; | |
f453ba04 DA |
2278 | else |
2279 | enc_resp->crtc_id = 0; | |
fcf93f69 DV |
2280 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
2281 | ||
f453ba04 DA |
2282 | enc_resp->encoder_type = encoder->encoder_type; |
2283 | enc_resp->encoder_id = encoder->base.id; | |
2284 | enc_resp->possible_crtcs = encoder->possible_crtcs; | |
2285 | enc_resp->possible_clones = encoder->possible_clones; | |
2286 | ||
baf698b0 | 2287 | return 0; |
f453ba04 DA |
2288 | } |
2289 | ||
8cf5c917 | 2290 | /** |
c8e32cc1 | 2291 | * drm_mode_getplane_res - enumerate all plane resources |
8cf5c917 JB |
2292 | * @dev: DRM device |
2293 | * @data: ioctl data | |
2294 | * @file_priv: DRM file info | |
2295 | * | |
c8e32cc1 DV |
2296 | * Construct a list of plane ids to return to the user. |
2297 | * | |
2298 | * Called by the user via ioctl. | |
2299 | * | |
2300 | * Returns: | |
1a498633 | 2301 | * Zero on success, negative errno on failure. |
8cf5c917 JB |
2302 | */ |
2303 | int drm_mode_getplane_res(struct drm_device *dev, void *data, | |
c8e32cc1 | 2304 | struct drm_file *file_priv) |
8cf5c917 JB |
2305 | { |
2306 | struct drm_mode_get_plane_res *plane_resp = data; | |
2307 | struct drm_mode_config *config; | |
2308 | struct drm_plane *plane; | |
2309 | uint32_t __user *plane_ptr; | |
fcf93f69 | 2310 | int copied = 0; |
681e7ec7 | 2311 | unsigned num_planes; |
8cf5c917 JB |
2312 | |
2313 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2314 | return -EINVAL; | |
2315 | ||
8cf5c917 JB |
2316 | config = &dev->mode_config; |
2317 | ||
681e7ec7 MR |
2318 | if (file_priv->universal_planes) |
2319 | num_planes = config->num_total_plane; | |
2320 | else | |
2321 | num_planes = config->num_overlay_plane; | |
2322 | ||
8cf5c917 JB |
2323 | /* |
2324 | * This ioctl is called twice, once to determine how much space is | |
2325 | * needed, and the 2nd time to fill it. | |
2326 | */ | |
681e7ec7 MR |
2327 | if (num_planes && |
2328 | (plane_resp->count_planes >= num_planes)) { | |
81f6c7f8 | 2329 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
8cf5c917 | 2330 | |
fcf93f69 | 2331 | /* Plane lists are invariant, no locking needed. */ |
8cf5c917 | 2332 | list_for_each_entry(plane, &config->plane_list, head) { |
681e7ec7 MR |
2333 | /* |
2334 | * Unless userspace set the 'universal planes' | |
2335 | * capability bit, only advertise overlays. | |
2336 | */ | |
2337 | if (plane->type != DRM_PLANE_TYPE_OVERLAY && | |
2338 | !file_priv->universal_planes) | |
e27dde3e MR |
2339 | continue; |
2340 | ||
fcf93f69 DV |
2341 | if (put_user(plane->base.id, plane_ptr + copied)) |
2342 | return -EFAULT; | |
8cf5c917 JB |
2343 | copied++; |
2344 | } | |
2345 | } | |
681e7ec7 | 2346 | plane_resp->count_planes = num_planes; |
8cf5c917 | 2347 | |
fcf93f69 | 2348 | return 0; |
8cf5c917 JB |
2349 | } |
2350 | ||
2351 | /** | |
c8e32cc1 | 2352 | * drm_mode_getplane - get plane configuration |
8cf5c917 JB |
2353 | * @dev: DRM device |
2354 | * @data: ioctl data | |
2355 | * @file_priv: DRM file info | |
2356 | * | |
c8e32cc1 DV |
2357 | * Construct a plane configuration structure to return to the user. |
2358 | * | |
2359 | * Called by the user via ioctl. | |
2360 | * | |
2361 | * Returns: | |
1a498633 | 2362 | * Zero on success, negative errno on failure. |
8cf5c917 JB |
2363 | */ |
2364 | int drm_mode_getplane(struct drm_device *dev, void *data, | |
c8e32cc1 | 2365 | struct drm_file *file_priv) |
8cf5c917 JB |
2366 | { |
2367 | struct drm_mode_get_plane *plane_resp = data; | |
8cf5c917 JB |
2368 | struct drm_plane *plane; |
2369 | uint32_t __user *format_ptr; | |
8cf5c917 JB |
2370 | |
2371 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2372 | return -EINVAL; | |
2373 | ||
a2b34e22 | 2374 | plane = drm_plane_find(dev, plane_resp->plane_id); |
fcf93f69 DV |
2375 | if (!plane) |
2376 | return -ENOENT; | |
8cf5c917 | 2377 | |
fcf93f69 | 2378 | drm_modeset_lock(&plane->mutex, NULL); |
8cf5c917 JB |
2379 | if (plane->crtc) |
2380 | plane_resp->crtc_id = plane->crtc->base.id; | |
2381 | else | |
2382 | plane_resp->crtc_id = 0; | |
2383 | ||
2384 | if (plane->fb) | |
2385 | plane_resp->fb_id = plane->fb->base.id; | |
2386 | else | |
2387 | plane_resp->fb_id = 0; | |
fcf93f69 | 2388 | drm_modeset_unlock(&plane->mutex); |
8cf5c917 JB |
2389 | |
2390 | plane_resp->plane_id = plane->base.id; | |
2391 | plane_resp->possible_crtcs = plane->possible_crtcs; | |
778ad903 | 2392 | plane_resp->gamma_size = 0; |
8cf5c917 JB |
2393 | |
2394 | /* | |
2395 | * This ioctl is called twice, once to determine how much space is | |
2396 | * needed, and the 2nd time to fill it. | |
2397 | */ | |
2398 | if (plane->format_count && | |
2399 | (plane_resp->count_format_types >= plane->format_count)) { | |
81f6c7f8 | 2400 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
8cf5c917 JB |
2401 | if (copy_to_user(format_ptr, |
2402 | plane->format_types, | |
2403 | sizeof(uint32_t) * plane->format_count)) { | |
fcf93f69 | 2404 | return -EFAULT; |
8cf5c917 JB |
2405 | } |
2406 | } | |
2407 | plane_resp->count_format_types = plane->format_count; | |
2408 | ||
baf698b0 | 2409 | return 0; |
8cf5c917 JB |
2410 | } |
2411 | ||
ead8610d LP |
2412 | /** |
2413 | * drm_plane_check_pixel_format - Check if the plane supports the pixel format | |
2414 | * @plane: plane to check for format support | |
2415 | * @format: the pixel format | |
2416 | * | |
2417 | * Returns: | |
2418 | * Zero of @plane has @format in its list of supported pixel formats, -EINVAL | |
2419 | * otherwise. | |
2420 | */ | |
2421 | int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format) | |
2422 | { | |
2423 | unsigned int i; | |
2424 | ||
2425 | for (i = 0; i < plane->format_count; i++) { | |
2426 | if (format == plane->format_types[i]) | |
2427 | return 0; | |
2428 | } | |
2429 | ||
2430 | return -EINVAL; | |
2431 | } | |
2432 | ||
b36552b3 MR |
2433 | /* |
2434 | * setplane_internal - setplane handler for internal callers | |
8cf5c917 | 2435 | * |
b36552b3 MR |
2436 | * Note that we assume an extra reference has already been taken on fb. If the |
2437 | * update fails, this reference will be dropped before return; if it succeeds, | |
2438 | * the previous framebuffer (if any) will be unreferenced instead. | |
c8e32cc1 | 2439 | * |
b36552b3 | 2440 | * src_{x,y,w,h} are provided in 16.16 fixed point format |
8cf5c917 | 2441 | */ |
f2b50c11 DV |
2442 | static int __setplane_internal(struct drm_plane *plane, |
2443 | struct drm_crtc *crtc, | |
2444 | struct drm_framebuffer *fb, | |
2445 | int32_t crtc_x, int32_t crtc_y, | |
2446 | uint32_t crtc_w, uint32_t crtc_h, | |
2447 | /* src_{x,y,w,h} values are 16.16 fixed point */ | |
2448 | uint32_t src_x, uint32_t src_y, | |
2449 | uint32_t src_w, uint32_t src_h) | |
8cf5c917 | 2450 | { |
8cf5c917 | 2451 | int ret = 0; |
42ef8789 | 2452 | unsigned int fb_width, fb_height; |
8cf5c917 | 2453 | |
8cf5c917 | 2454 | /* No fb means shut it down */ |
b36552b3 | 2455 | if (!fb) { |
3d30a59b | 2456 | plane->old_fb = plane->fb; |
731cce48 DV |
2457 | ret = plane->funcs->disable_plane(plane); |
2458 | if (!ret) { | |
2459 | plane->crtc = NULL; | |
2460 | plane->fb = NULL; | |
2461 | } else { | |
3d30a59b | 2462 | plane->old_fb = NULL; |
731cce48 | 2463 | } |
8cf5c917 JB |
2464 | goto out; |
2465 | } | |
2466 | ||
7f994f3f MR |
2467 | /* Check whether this plane is usable on this CRTC */ |
2468 | if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { | |
2469 | DRM_DEBUG_KMS("Invalid crtc for plane\n"); | |
2470 | ret = -EINVAL; | |
2471 | goto out; | |
2472 | } | |
2473 | ||
62443be6 | 2474 | /* Check whether this plane supports the fb pixel format. */ |
ead8610d LP |
2475 | ret = drm_plane_check_pixel_format(plane, fb->pixel_format); |
2476 | if (ret) { | |
6ba6d03e VS |
2477 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
2478 | drm_get_format_name(fb->pixel_format)); | |
62443be6 VS |
2479 | goto out; |
2480 | } | |
2481 | ||
42ef8789 VS |
2482 | fb_width = fb->width << 16; |
2483 | fb_height = fb->height << 16; | |
2484 | ||
2485 | /* Make sure source coordinates are inside the fb. */ | |
b36552b3 MR |
2486 | if (src_w > fb_width || |
2487 | src_x > fb_width - src_w || | |
2488 | src_h > fb_height || | |
2489 | src_y > fb_height - src_h) { | |
42ef8789 VS |
2490 | DRM_DEBUG_KMS("Invalid source coordinates " |
2491 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", | |
b36552b3 MR |
2492 | src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, |
2493 | src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, | |
2494 | src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, | |
2495 | src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); | |
42ef8789 VS |
2496 | ret = -ENOSPC; |
2497 | goto out; | |
2498 | } | |
2499 | ||
3d30a59b | 2500 | plane->old_fb = plane->fb; |
8cf5c917 | 2501 | ret = plane->funcs->update_plane(plane, crtc, fb, |
b36552b3 MR |
2502 | crtc_x, crtc_y, crtc_w, crtc_h, |
2503 | src_x, src_y, src_w, src_h); | |
8cf5c917 JB |
2504 | if (!ret) { |
2505 | plane->crtc = crtc; | |
2506 | plane->fb = fb; | |
35f8badc | 2507 | fb = NULL; |
0fe27f06 | 2508 | } else { |
3d30a59b | 2509 | plane->old_fb = NULL; |
8cf5c917 JB |
2510 | } |
2511 | ||
2512 | out: | |
6c2a7532 DV |
2513 | if (fb) |
2514 | drm_framebuffer_unreference(fb); | |
3d30a59b DV |
2515 | if (plane->old_fb) |
2516 | drm_framebuffer_unreference(plane->old_fb); | |
2517 | plane->old_fb = NULL; | |
8cf5c917 JB |
2518 | |
2519 | return ret; | |
f2b50c11 | 2520 | } |
b36552b3 | 2521 | |
f2b50c11 DV |
2522 | static int setplane_internal(struct drm_plane *plane, |
2523 | struct drm_crtc *crtc, | |
2524 | struct drm_framebuffer *fb, | |
2525 | int32_t crtc_x, int32_t crtc_y, | |
2526 | uint32_t crtc_w, uint32_t crtc_h, | |
2527 | /* src_{x,y,w,h} values are 16.16 fixed point */ | |
2528 | uint32_t src_x, uint32_t src_y, | |
2529 | uint32_t src_w, uint32_t src_h) | |
2530 | { | |
2531 | int ret; | |
2532 | ||
2533 | drm_modeset_lock_all(plane->dev); | |
2534 | ret = __setplane_internal(plane, crtc, fb, | |
2535 | crtc_x, crtc_y, crtc_w, crtc_h, | |
2536 | src_x, src_y, src_w, src_h); | |
2537 | drm_modeset_unlock_all(plane->dev); | |
2538 | ||
2539 | return ret; | |
b36552b3 MR |
2540 | } |
2541 | ||
2542 | /** | |
2543 | * drm_mode_setplane - configure a plane's configuration | |
2544 | * @dev: DRM device | |
2545 | * @data: ioctl data* | |
2546 | * @file_priv: DRM file info | |
2547 | * | |
2548 | * Set plane configuration, including placement, fb, scaling, and other factors. | |
2549 | * Or pass a NULL fb to disable (planes may be disabled without providing a | |
2550 | * valid crtc). | |
2551 | * | |
2552 | * Returns: | |
1a498633 | 2553 | * Zero on success, negative errno on failure. |
b36552b3 MR |
2554 | */ |
2555 | int drm_mode_setplane(struct drm_device *dev, void *data, | |
2556 | struct drm_file *file_priv) | |
2557 | { | |
2558 | struct drm_mode_set_plane *plane_req = data; | |
b36552b3 MR |
2559 | struct drm_plane *plane; |
2560 | struct drm_crtc *crtc = NULL; | |
2561 | struct drm_framebuffer *fb = NULL; | |
2562 | ||
2563 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2564 | return -EINVAL; | |
2565 | ||
2566 | /* Give drivers some help against integer overflows */ | |
2567 | if (plane_req->crtc_w > INT_MAX || | |
2568 | plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w || | |
2569 | plane_req->crtc_h > INT_MAX || | |
2570 | plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) { | |
2571 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", | |
2572 | plane_req->crtc_w, plane_req->crtc_h, | |
2573 | plane_req->crtc_x, plane_req->crtc_y); | |
2574 | return -ERANGE; | |
2575 | } | |
2576 | ||
2577 | /* | |
2578 | * First, find the plane, crtc, and fb objects. If not available, | |
2579 | * we don't bother to call the driver. | |
2580 | */ | |
933f622f RC |
2581 | plane = drm_plane_find(dev, plane_req->plane_id); |
2582 | if (!plane) { | |
b36552b3 MR |
2583 | DRM_DEBUG_KMS("Unknown plane ID %d\n", |
2584 | plane_req->plane_id); | |
2585 | return -ENOENT; | |
2586 | } | |
b36552b3 MR |
2587 | |
2588 | if (plane_req->fb_id) { | |
2589 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); | |
2590 | if (!fb) { | |
2591 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", | |
2592 | plane_req->fb_id); | |
2593 | return -ENOENT; | |
2594 | } | |
2595 | ||
933f622f RC |
2596 | crtc = drm_crtc_find(dev, plane_req->crtc_id); |
2597 | if (!crtc) { | |
b36552b3 MR |
2598 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", |
2599 | plane_req->crtc_id); | |
2600 | return -ENOENT; | |
2601 | } | |
b36552b3 MR |
2602 | } |
2603 | ||
161d0dc1 MR |
2604 | /* |
2605 | * setplane_internal will take care of deref'ing either the old or new | |
2606 | * framebuffer depending on success. | |
2607 | */ | |
17cfd91f | 2608 | return setplane_internal(plane, crtc, fb, |
b36552b3 MR |
2609 | plane_req->crtc_x, plane_req->crtc_y, |
2610 | plane_req->crtc_w, plane_req->crtc_h, | |
2611 | plane_req->src_x, plane_req->src_y, | |
2612 | plane_req->src_w, plane_req->src_h); | |
8cf5c917 JB |
2613 | } |
2614 | ||
2d13b679 DV |
2615 | /** |
2616 | * drm_mode_set_config_internal - helper to call ->set_config | |
2617 | * @set: modeset config to set | |
2618 | * | |
2619 | * This is a little helper to wrap internal calls to the ->set_config driver | |
2620 | * interface. The only thing it adds is correct refcounting dance. | |
4dfd909f | 2621 | * |
c8e32cc1 | 2622 | * Returns: |
1a498633 | 2623 | * Zero on success, negative errno on failure. |
2d13b679 DV |
2624 | */ |
2625 | int drm_mode_set_config_internal(struct drm_mode_set *set) | |
2626 | { | |
2627 | struct drm_crtc *crtc = set->crtc; | |
5cef29aa DV |
2628 | struct drm_framebuffer *fb; |
2629 | struct drm_crtc *tmp; | |
b0d12325 DV |
2630 | int ret; |
2631 | ||
5cef29aa DV |
2632 | /* |
2633 | * NOTE: ->set_config can also disable other crtcs (if we steal all | |
2634 | * connectors from it), hence we need to refcount the fbs across all | |
2635 | * crtcs. Atomic modeset will have saner semantics ... | |
2636 | */ | |
2637 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) | |
3d30a59b | 2638 | tmp->primary->old_fb = tmp->primary->fb; |
5cef29aa | 2639 | |
b0d12325 | 2640 | fb = set->fb; |
2d13b679 | 2641 | |
b0d12325 DV |
2642 | ret = crtc->funcs->set_config(set); |
2643 | if (ret == 0) { | |
e13161af | 2644 | crtc->primary->crtc = crtc; |
0fe27f06 | 2645 | crtc->primary->fb = fb; |
5cef29aa | 2646 | } |
cc85e121 | 2647 | |
5cef29aa | 2648 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { |
f4510a27 MR |
2649 | if (tmp->primary->fb) |
2650 | drm_framebuffer_reference(tmp->primary->fb); | |
3d30a59b DV |
2651 | if (tmp->primary->old_fb) |
2652 | drm_framebuffer_unreference(tmp->primary->old_fb); | |
2653 | tmp->primary->old_fb = NULL; | |
b0d12325 DV |
2654 | } |
2655 | ||
2656 | return ret; | |
2d13b679 DV |
2657 | } |
2658 | EXPORT_SYMBOL(drm_mode_set_config_internal); | |
2659 | ||
ecb7e16b GP |
2660 | /** |
2661 | * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode | |
2662 | * @mode: mode to query | |
2663 | * @hdisplay: hdisplay value to fill in | |
2664 | * @vdisplay: vdisplay value to fill in | |
2665 | * | |
2666 | * The vdisplay value will be doubled if the specified mode is a stereo mode of | |
2667 | * the appropriate layout. | |
2668 | */ | |
2669 | void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, | |
2670 | int *hdisplay, int *vdisplay) | |
2671 | { | |
2672 | struct drm_display_mode adjusted; | |
2673 | ||
2674 | drm_mode_copy(&adjusted, mode); | |
2675 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); | |
2676 | *hdisplay = adjusted.crtc_hdisplay; | |
2677 | *vdisplay = adjusted.crtc_vdisplay; | |
2678 | } | |
2679 | EXPORT_SYMBOL(drm_crtc_get_hv_timing); | |
2680 | ||
af93629d MR |
2681 | /** |
2682 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the | |
2683 | * CRTC viewport | |
2684 | * @crtc: CRTC that framebuffer will be displayed on | |
2685 | * @x: x panning | |
2686 | * @y: y panning | |
2687 | * @mode: mode that framebuffer will be displayed under | |
2688 | * @fb: framebuffer to check size of | |
c11e9283 | 2689 | */ |
af93629d MR |
2690 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
2691 | int x, int y, | |
2692 | const struct drm_display_mode *mode, | |
2693 | const struct drm_framebuffer *fb) | |
c11e9283 DL |
2694 | |
2695 | { | |
2696 | int hdisplay, vdisplay; | |
2697 | ||
ecb7e16b | 2698 | drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); |
a0c1bbb0 | 2699 | |
c11e9283 DL |
2700 | if (crtc->invert_dimensions) |
2701 | swap(hdisplay, vdisplay); | |
2702 | ||
2703 | if (hdisplay > fb->width || | |
2704 | vdisplay > fb->height || | |
2705 | x > fb->width - hdisplay || | |
2706 | y > fb->height - vdisplay) { | |
2707 | DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", | |
2708 | fb->width, fb->height, hdisplay, vdisplay, x, y, | |
2709 | crtc->invert_dimensions ? " (inverted)" : ""); | |
2710 | return -ENOSPC; | |
2711 | } | |
2712 | ||
2713 | return 0; | |
2714 | } | |
af93629d | 2715 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
c11e9283 | 2716 | |
f453ba04 DA |
2717 | /** |
2718 | * drm_mode_setcrtc - set CRTC configuration | |
065a50ed DV |
2719 | * @dev: drm device for the ioctl |
2720 | * @data: data pointer for the ioctl | |
2721 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2722 | * |
f453ba04 DA |
2723 | * Build a new CRTC configuration based on user request. |
2724 | * | |
2725 | * Called by the user via ioctl. | |
2726 | * | |
c8e32cc1 | 2727 | * Returns: |
1a498633 | 2728 | * Zero on success, negative errno on failure. |
f453ba04 DA |
2729 | */ |
2730 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
2731 | struct drm_file *file_priv) | |
2732 | { | |
2733 | struct drm_mode_config *config = &dev->mode_config; | |
2734 | struct drm_mode_crtc *crtc_req = data; | |
6653cc8d | 2735 | struct drm_crtc *crtc; |
f453ba04 DA |
2736 | struct drm_connector **connector_set = NULL, *connector; |
2737 | struct drm_framebuffer *fb = NULL; | |
2738 | struct drm_display_mode *mode = NULL; | |
2739 | struct drm_mode_set set; | |
2740 | uint32_t __user *set_connectors_ptr; | |
4a1b0714 | 2741 | int ret; |
f453ba04 DA |
2742 | int i; |
2743 | ||
fb3b06c8 DA |
2744 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2745 | return -EINVAL; | |
2746 | ||
1d97e915 VS |
2747 | /* For some reason crtc x/y offsets are signed internally. */ |
2748 | if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX) | |
2749 | return -ERANGE; | |
2750 | ||
84849903 | 2751 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
2752 | crtc = drm_crtc_find(dev, crtc_req->crtc_id); |
2753 | if (!crtc) { | |
58367ed6 | 2754 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
f27657f2 | 2755 | ret = -ENOENT; |
f453ba04 DA |
2756 | goto out; |
2757 | } | |
9440106b | 2758 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
2759 | |
2760 | if (crtc_req->mode_valid) { | |
2761 | /* If we have a mode we need a framebuffer. */ | |
2762 | /* If we pass -1, set the mode with the currently bound fb */ | |
2763 | if (crtc_req->fb_id == -1) { | |
f4510a27 | 2764 | if (!crtc->primary->fb) { |
6653cc8d VS |
2765 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
2766 | ret = -EINVAL; | |
2767 | goto out; | |
f453ba04 | 2768 | } |
f4510a27 | 2769 | fb = crtc->primary->fb; |
b0d12325 DV |
2770 | /* Make refcounting symmetric with the lookup path. */ |
2771 | drm_framebuffer_reference(fb); | |
f453ba04 | 2772 | } else { |
786b99ed DV |
2773 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
2774 | if (!fb) { | |
58367ed6 ZY |
2775 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
2776 | crtc_req->fb_id); | |
37c4e705 | 2777 | ret = -ENOENT; |
f453ba04 DA |
2778 | goto out; |
2779 | } | |
f453ba04 DA |
2780 | } |
2781 | ||
2782 | mode = drm_mode_create(dev); | |
ee34ab5b VS |
2783 | if (!mode) { |
2784 | ret = -ENOMEM; | |
2785 | goto out; | |
2786 | } | |
2787 | ||
90367bf6 VS |
2788 | ret = drm_crtc_convert_umode(mode, &crtc_req->mode); |
2789 | if (ret) { | |
2790 | DRM_DEBUG_KMS("Invalid mode\n"); | |
2791 | goto out; | |
2792 | } | |
2793 | ||
23e1ce89 VS |
2794 | mode->status = drm_mode_validate_basic(mode); |
2795 | if (mode->status != MODE_OK) { | |
2796 | ret = -EINVAL; | |
2797 | goto out; | |
2798 | } | |
2799 | ||
f453ba04 | 2800 | drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); |
5f61bb42 | 2801 | |
7eb5f302 LP |
2802 | /* |
2803 | * Check whether the primary plane supports the fb pixel format. | |
2804 | * Drivers not implementing the universal planes API use a | |
2805 | * default formats list provided by the DRM core which doesn't | |
2806 | * match real hardware capabilities. Skip the check in that | |
2807 | * case. | |
2808 | */ | |
2809 | if (!crtc->primary->format_default) { | |
2810 | ret = drm_plane_check_pixel_format(crtc->primary, | |
2811 | fb->pixel_format); | |
2812 | if (ret) { | |
2813 | DRM_DEBUG_KMS("Invalid pixel format %s\n", | |
2814 | drm_get_format_name(fb->pixel_format)); | |
2815 | goto out; | |
2816 | } | |
2817 | } | |
2818 | ||
c11e9283 DL |
2819 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
2820 | mode, fb); | |
2821 | if (ret) | |
5f61bb42 | 2822 | goto out; |
c11e9283 | 2823 | |
f453ba04 DA |
2824 | } |
2825 | ||
2826 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 2827 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
2828 | ret = -EINVAL; |
2829 | goto out; | |
2830 | } | |
2831 | ||
7781de74 | 2832 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
58367ed6 | 2833 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
2834 | crtc_req->count_connectors); |
2835 | ret = -EINVAL; | |
2836 | goto out; | |
2837 | } | |
2838 | ||
2839 | if (crtc_req->count_connectors > 0) { | |
2840 | u32 out_id; | |
2841 | ||
2842 | /* Avoid unbounded kernel memory allocation */ | |
2843 | if (crtc_req->count_connectors > config->num_connector) { | |
2844 | ret = -EINVAL; | |
2845 | goto out; | |
2846 | } | |
2847 | ||
2f6c5389 TR |
2848 | connector_set = kmalloc_array(crtc_req->count_connectors, |
2849 | sizeof(struct drm_connector *), | |
2850 | GFP_KERNEL); | |
f453ba04 DA |
2851 | if (!connector_set) { |
2852 | ret = -ENOMEM; | |
2853 | goto out; | |
2854 | } | |
2855 | ||
2856 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
81f6c7f8 | 2857 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
f453ba04 DA |
2858 | if (get_user(out_id, &set_connectors_ptr[i])) { |
2859 | ret = -EFAULT; | |
2860 | goto out; | |
2861 | } | |
2862 | ||
a2b34e22 RC |
2863 | connector = drm_connector_find(dev, out_id); |
2864 | if (!connector) { | |
58367ed6 ZY |
2865 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
2866 | out_id); | |
f27657f2 | 2867 | ret = -ENOENT; |
f453ba04 DA |
2868 | goto out; |
2869 | } | |
9440106b JG |
2870 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
2871 | connector->base.id, | |
25933820 | 2872 | connector->name); |
f453ba04 DA |
2873 | |
2874 | connector_set[i] = connector; | |
2875 | } | |
2876 | } | |
2877 | ||
2878 | set.crtc = crtc; | |
2879 | set.x = crtc_req->x; | |
2880 | set.y = crtc_req->y; | |
2881 | set.mode = mode; | |
2882 | set.connectors = connector_set; | |
2883 | set.num_connectors = crtc_req->count_connectors; | |
5ef5f72f | 2884 | set.fb = fb; |
2d13b679 | 2885 | ret = drm_mode_set_config_internal(&set); |
f453ba04 DA |
2886 | |
2887 | out: | |
b0d12325 DV |
2888 | if (fb) |
2889 | drm_framebuffer_unreference(fb); | |
2890 | ||
f453ba04 | 2891 | kfree(connector_set); |
ee34ab5b | 2892 | drm_mode_destroy(dev, mode); |
84849903 | 2893 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2894 | return ret; |
2895 | } | |
2896 | ||
161d0dc1 MR |
2897 | /** |
2898 | * drm_mode_cursor_universal - translate legacy cursor ioctl call into a | |
2899 | * universal plane handler call | |
2900 | * @crtc: crtc to update cursor for | |
2901 | * @req: data pointer for the ioctl | |
2902 | * @file_priv: drm file for the ioctl call | |
2903 | * | |
2904 | * Legacy cursor ioctl's work directly with driver buffer handles. To | |
2905 | * translate legacy ioctl calls into universal plane handler calls, we need to | |
2906 | * wrap the native buffer handle in a drm_framebuffer. | |
2907 | * | |
2908 | * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB | |
2909 | * buffer with a pitch of 4*width; the universal plane interface should be used | |
2910 | * directly in cases where the hardware can support other buffer settings and | |
2911 | * userspace wants to make use of these capabilities. | |
2912 | * | |
2913 | * Returns: | |
1a498633 | 2914 | * Zero on success, negative errno on failure. |
161d0dc1 MR |
2915 | */ |
2916 | static int drm_mode_cursor_universal(struct drm_crtc *crtc, | |
2917 | struct drm_mode_cursor2 *req, | |
2918 | struct drm_file *file_priv) | |
2919 | { | |
2920 | struct drm_device *dev = crtc->dev; | |
2921 | struct drm_framebuffer *fb = NULL; | |
2922 | struct drm_mode_fb_cmd2 fbreq = { | |
2923 | .width = req->width, | |
2924 | .height = req->height, | |
2925 | .pixel_format = DRM_FORMAT_ARGB8888, | |
2926 | .pitches = { req->width * 4 }, | |
2927 | .handles = { req->handle }, | |
2928 | }; | |
2929 | int32_t crtc_x, crtc_y; | |
2930 | uint32_t crtc_w = 0, crtc_h = 0; | |
2931 | uint32_t src_w = 0, src_h = 0; | |
2932 | int ret = 0; | |
2933 | ||
2934 | BUG_ON(!crtc->cursor); | |
f2b50c11 | 2935 | WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL); |
161d0dc1 MR |
2936 | |
2937 | /* | |
2938 | * Obtain fb we'll be using (either new or existing) and take an extra | |
2939 | * reference to it if fb != null. setplane will take care of dropping | |
2940 | * the reference if the plane update fails. | |
2941 | */ | |
2942 | if (req->flags & DRM_MODE_CURSOR_BO) { | |
2943 | if (req->handle) { | |
9a6f5130 | 2944 | fb = internal_framebuffer_create(dev, &fbreq, file_priv); |
161d0dc1 MR |
2945 | if (IS_ERR(fb)) { |
2946 | DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n"); | |
2947 | return PTR_ERR(fb); | |
2948 | } | |
161d0dc1 MR |
2949 | } else { |
2950 | fb = NULL; | |
2951 | } | |
2952 | } else { | |
161d0dc1 MR |
2953 | fb = crtc->cursor->fb; |
2954 | if (fb) | |
2955 | drm_framebuffer_reference(fb); | |
161d0dc1 MR |
2956 | } |
2957 | ||
2958 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
2959 | crtc_x = req->x; | |
2960 | crtc_y = req->y; | |
2961 | } else { | |
2962 | crtc_x = crtc->cursor_x; | |
2963 | crtc_y = crtc->cursor_y; | |
2964 | } | |
2965 | ||
2966 | if (fb) { | |
2967 | crtc_w = fb->width; | |
2968 | crtc_h = fb->height; | |
2969 | src_w = fb->width << 16; | |
2970 | src_h = fb->height << 16; | |
2971 | } | |
2972 | ||
2973 | /* | |
2974 | * setplane_internal will take care of deref'ing either the old or new | |
2975 | * framebuffer depending on success. | |
2976 | */ | |
f2b50c11 | 2977 | ret = __setplane_internal(crtc->cursor, crtc, fb, |
161d0dc1 MR |
2978 | crtc_x, crtc_y, crtc_w, crtc_h, |
2979 | 0, 0, src_w, src_h); | |
2980 | ||
2981 | /* Update successful; save new cursor position, if necessary */ | |
2982 | if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) { | |
2983 | crtc->cursor_x = req->x; | |
2984 | crtc->cursor_y = req->y; | |
2985 | } | |
2986 | ||
2987 | return ret; | |
2988 | } | |
2989 | ||
4c813d4d DA |
2990 | static int drm_mode_cursor_common(struct drm_device *dev, |
2991 | struct drm_mode_cursor2 *req, | |
2992 | struct drm_file *file_priv) | |
f453ba04 | 2993 | { |
f453ba04 DA |
2994 | struct drm_crtc *crtc; |
2995 | int ret = 0; | |
2996 | ||
fb3b06c8 DA |
2997 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2998 | return -EINVAL; | |
2999 | ||
7c4eaca4 | 3000 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
f453ba04 | 3001 | return -EINVAL; |
f453ba04 | 3002 | |
a2b34e22 RC |
3003 | crtc = drm_crtc_find(dev, req->crtc_id); |
3004 | if (!crtc) { | |
58367ed6 | 3005 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
f27657f2 | 3006 | return -ENOENT; |
f453ba04 | 3007 | } |
f453ba04 | 3008 | |
161d0dc1 MR |
3009 | /* |
3010 | * If this crtc has a universal cursor plane, call that plane's update | |
3011 | * handler rather than using legacy cursor handlers. | |
3012 | */ | |
4d02e2de | 3013 | drm_modeset_lock_crtc(crtc, crtc->cursor); |
f2b50c11 DV |
3014 | if (crtc->cursor) { |
3015 | ret = drm_mode_cursor_universal(crtc, req, file_priv); | |
3016 | goto out; | |
3017 | } | |
3018 | ||
f453ba04 | 3019 | if (req->flags & DRM_MODE_CURSOR_BO) { |
4c813d4d | 3020 | if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { |
f453ba04 DA |
3021 | ret = -ENXIO; |
3022 | goto out; | |
3023 | } | |
3024 | /* Turns off the cursor if handle is 0 */ | |
4c813d4d DA |
3025 | if (crtc->funcs->cursor_set2) |
3026 | ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, | |
3027 | req->width, req->height, req->hot_x, req->hot_y); | |
3028 | else | |
3029 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, | |
3030 | req->width, req->height); | |
f453ba04 DA |
3031 | } |
3032 | ||
3033 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
3034 | if (crtc->funcs->cursor_move) { | |
3035 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); | |
3036 | } else { | |
f453ba04 DA |
3037 | ret = -EFAULT; |
3038 | goto out; | |
3039 | } | |
3040 | } | |
3041 | out: | |
d059f652 | 3042 | drm_modeset_unlock_crtc(crtc); |
dac35663 | 3043 | |
f453ba04 | 3044 | return ret; |
4c813d4d DA |
3045 | |
3046 | } | |
c8e32cc1 DV |
3047 | |
3048 | ||
3049 | /** | |
3050 | * drm_mode_cursor_ioctl - set CRTC's cursor configuration | |
3051 | * @dev: drm device for the ioctl | |
3052 | * @data: data pointer for the ioctl | |
3053 | * @file_priv: drm file for the ioctl call | |
3054 | * | |
3055 | * Set the cursor configuration based on user request. | |
3056 | * | |
3057 | * Called by the user via ioctl. | |
3058 | * | |
3059 | * Returns: | |
1a498633 | 3060 | * Zero on success, negative errno on failure. |
c8e32cc1 | 3061 | */ |
4c813d4d | 3062 | int drm_mode_cursor_ioctl(struct drm_device *dev, |
c8e32cc1 | 3063 | void *data, struct drm_file *file_priv) |
4c813d4d DA |
3064 | { |
3065 | struct drm_mode_cursor *req = data; | |
3066 | struct drm_mode_cursor2 new_req; | |
3067 | ||
3068 | memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); | |
3069 | new_req.hot_x = new_req.hot_y = 0; | |
3070 | ||
3071 | return drm_mode_cursor_common(dev, &new_req, file_priv); | |
3072 | } | |
3073 | ||
c8e32cc1 DV |
3074 | /** |
3075 | * drm_mode_cursor2_ioctl - set CRTC's cursor configuration | |
3076 | * @dev: drm device for the ioctl | |
3077 | * @data: data pointer for the ioctl | |
3078 | * @file_priv: drm file for the ioctl call | |
3079 | * | |
3080 | * Set the cursor configuration based on user request. This implements the 2nd | |
3081 | * version of the cursor ioctl, which allows userspace to additionally specify | |
3082 | * the hotspot of the pointer. | |
3083 | * | |
3084 | * Called by the user via ioctl. | |
3085 | * | |
3086 | * Returns: | |
1a498633 | 3087 | * Zero on success, negative errno on failure. |
c8e32cc1 | 3088 | */ |
4c813d4d DA |
3089 | int drm_mode_cursor2_ioctl(struct drm_device *dev, |
3090 | void *data, struct drm_file *file_priv) | |
3091 | { | |
3092 | struct drm_mode_cursor2 *req = data; | |
4dfd909f | 3093 | |
4c813d4d | 3094 | return drm_mode_cursor_common(dev, req, file_priv); |
f453ba04 DA |
3095 | } |
3096 | ||
c8e32cc1 DV |
3097 | /** |
3098 | * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description | |
3099 | * @bpp: bits per pixels | |
3100 | * @depth: bit depth per pixel | |
3101 | * | |
3102 | * Computes a drm fourcc pixel format code for the given @bpp/@depth values. | |
3103 | * Useful in fbdev emulation code, since that deals in those values. | |
3104 | */ | |
308e5bcb JB |
3105 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) |
3106 | { | |
3107 | uint32_t fmt; | |
3108 | ||
3109 | switch (bpp) { | |
3110 | case 8: | |
d84f031b | 3111 | fmt = DRM_FORMAT_C8; |
308e5bcb JB |
3112 | break; |
3113 | case 16: | |
3114 | if (depth == 15) | |
04b3924d | 3115 | fmt = DRM_FORMAT_XRGB1555; |
308e5bcb | 3116 | else |
04b3924d | 3117 | fmt = DRM_FORMAT_RGB565; |
308e5bcb JB |
3118 | break; |
3119 | case 24: | |
04b3924d | 3120 | fmt = DRM_FORMAT_RGB888; |
308e5bcb JB |
3121 | break; |
3122 | case 32: | |
3123 | if (depth == 24) | |
04b3924d | 3124 | fmt = DRM_FORMAT_XRGB8888; |
308e5bcb | 3125 | else if (depth == 30) |
04b3924d | 3126 | fmt = DRM_FORMAT_XRGB2101010; |
308e5bcb | 3127 | else |
04b3924d | 3128 | fmt = DRM_FORMAT_ARGB8888; |
308e5bcb JB |
3129 | break; |
3130 | default: | |
04b3924d VS |
3131 | DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); |
3132 | fmt = DRM_FORMAT_XRGB8888; | |
308e5bcb JB |
3133 | break; |
3134 | } | |
3135 | ||
3136 | return fmt; | |
3137 | } | |
3138 | EXPORT_SYMBOL(drm_mode_legacy_fb_format); | |
3139 | ||
f453ba04 DA |
3140 | /** |
3141 | * drm_mode_addfb - add an FB to the graphics configuration | |
065a50ed DV |
3142 | * @dev: drm device for the ioctl |
3143 | * @data: data pointer for the ioctl | |
3144 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3145 | * |
c8e32cc1 | 3146 | * Add a new FB to the specified CRTC, given a user request. This is the |
209f5527 | 3147 | * original addfb ioctl which only supported RGB formats. |
f453ba04 DA |
3148 | * |
3149 | * Called by the user via ioctl. | |
3150 | * | |
c8e32cc1 | 3151 | * Returns: |
1a498633 | 3152 | * Zero on success, negative errno on failure. |
f453ba04 DA |
3153 | */ |
3154 | int drm_mode_addfb(struct drm_device *dev, | |
3155 | void *data, struct drm_file *file_priv) | |
3156 | { | |
308e5bcb JB |
3157 | struct drm_mode_fb_cmd *or = data; |
3158 | struct drm_mode_fb_cmd2 r = {}; | |
228f2cb3 | 3159 | int ret; |
308e5bcb | 3160 | |
228f2cb3 | 3161 | /* convert to new format and call new ioctl */ |
308e5bcb JB |
3162 | r.fb_id = or->fb_id; |
3163 | r.width = or->width; | |
3164 | r.height = or->height; | |
3165 | r.pitches[0] = or->pitch; | |
3166 | r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); | |
3167 | r.handles[0] = or->handle; | |
3168 | ||
228f2cb3 CE |
3169 | ret = drm_mode_addfb2(dev, &r, file_priv); |
3170 | if (ret) | |
3171 | return ret; | |
308e5bcb | 3172 | |
228f2cb3 | 3173 | or->fb_id = r.fb_id; |
4b096ac1 | 3174 | |
baf698b0 | 3175 | return 0; |
308e5bcb JB |
3176 | } |
3177 | ||
cff91b62 | 3178 | static int format_check(const struct drm_mode_fb_cmd2 *r) |
935b5977 VS |
3179 | { |
3180 | uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; | |
3181 | ||
3182 | switch (format) { | |
3183 | case DRM_FORMAT_C8: | |
3184 | case DRM_FORMAT_RGB332: | |
3185 | case DRM_FORMAT_BGR233: | |
3186 | case DRM_FORMAT_XRGB4444: | |
3187 | case DRM_FORMAT_XBGR4444: | |
3188 | case DRM_FORMAT_RGBX4444: | |
3189 | case DRM_FORMAT_BGRX4444: | |
3190 | case DRM_FORMAT_ARGB4444: | |
3191 | case DRM_FORMAT_ABGR4444: | |
3192 | case DRM_FORMAT_RGBA4444: | |
3193 | case DRM_FORMAT_BGRA4444: | |
3194 | case DRM_FORMAT_XRGB1555: | |
3195 | case DRM_FORMAT_XBGR1555: | |
3196 | case DRM_FORMAT_RGBX5551: | |
3197 | case DRM_FORMAT_BGRX5551: | |
3198 | case DRM_FORMAT_ARGB1555: | |
3199 | case DRM_FORMAT_ABGR1555: | |
3200 | case DRM_FORMAT_RGBA5551: | |
3201 | case DRM_FORMAT_BGRA5551: | |
3202 | case DRM_FORMAT_RGB565: | |
3203 | case DRM_FORMAT_BGR565: | |
3204 | case DRM_FORMAT_RGB888: | |
3205 | case DRM_FORMAT_BGR888: | |
3206 | case DRM_FORMAT_XRGB8888: | |
3207 | case DRM_FORMAT_XBGR8888: | |
3208 | case DRM_FORMAT_RGBX8888: | |
3209 | case DRM_FORMAT_BGRX8888: | |
3210 | case DRM_FORMAT_ARGB8888: | |
3211 | case DRM_FORMAT_ABGR8888: | |
3212 | case DRM_FORMAT_RGBA8888: | |
3213 | case DRM_FORMAT_BGRA8888: | |
3214 | case DRM_FORMAT_XRGB2101010: | |
3215 | case DRM_FORMAT_XBGR2101010: | |
3216 | case DRM_FORMAT_RGBX1010102: | |
3217 | case DRM_FORMAT_BGRX1010102: | |
3218 | case DRM_FORMAT_ARGB2101010: | |
3219 | case DRM_FORMAT_ABGR2101010: | |
3220 | case DRM_FORMAT_RGBA1010102: | |
3221 | case DRM_FORMAT_BGRA1010102: | |
3222 | case DRM_FORMAT_YUYV: | |
3223 | case DRM_FORMAT_YVYU: | |
3224 | case DRM_FORMAT_UYVY: | |
3225 | case DRM_FORMAT_VYUY: | |
3226 | case DRM_FORMAT_AYUV: | |
3227 | case DRM_FORMAT_NV12: | |
3228 | case DRM_FORMAT_NV21: | |
3229 | case DRM_FORMAT_NV16: | |
3230 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
3231 | case DRM_FORMAT_NV24: |
3232 | case DRM_FORMAT_NV42: | |
935b5977 VS |
3233 | case DRM_FORMAT_YUV410: |
3234 | case DRM_FORMAT_YVU410: | |
3235 | case DRM_FORMAT_YUV411: | |
3236 | case DRM_FORMAT_YVU411: | |
3237 | case DRM_FORMAT_YUV420: | |
3238 | case DRM_FORMAT_YVU420: | |
3239 | case DRM_FORMAT_YUV422: | |
3240 | case DRM_FORMAT_YVU422: | |
3241 | case DRM_FORMAT_YUV444: | |
3242 | case DRM_FORMAT_YVU444: | |
3243 | return 0; | |
3244 | default: | |
23c453a4 VS |
3245 | DRM_DEBUG_KMS("invalid pixel format %s\n", |
3246 | drm_get_format_name(r->pixel_format)); | |
935b5977 VS |
3247 | return -EINVAL; |
3248 | } | |
3249 | } | |
3250 | ||
cff91b62 | 3251 | static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) |
d1b45d5f VS |
3252 | { |
3253 | int ret, hsub, vsub, num_planes, i; | |
3254 | ||
3255 | ret = format_check(r); | |
3256 | if (ret) { | |
6ba6d03e VS |
3257 | DRM_DEBUG_KMS("bad framebuffer format %s\n", |
3258 | drm_get_format_name(r->pixel_format)); | |
d1b45d5f VS |
3259 | return ret; |
3260 | } | |
3261 | ||
3262 | hsub = drm_format_horz_chroma_subsampling(r->pixel_format); | |
3263 | vsub = drm_format_vert_chroma_subsampling(r->pixel_format); | |
3264 | num_planes = drm_format_num_planes(r->pixel_format); | |
3265 | ||
3266 | if (r->width == 0 || r->width % hsub) { | |
209f5527 | 3267 | DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width); |
d1b45d5f VS |
3268 | return -EINVAL; |
3269 | } | |
3270 | ||
3271 | if (r->height == 0 || r->height % vsub) { | |
1aa1b11c | 3272 | DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); |
d1b45d5f VS |
3273 | return -EINVAL; |
3274 | } | |
3275 | ||
3276 | for (i = 0; i < num_planes; i++) { | |
3277 | unsigned int width = r->width / (i != 0 ? hsub : 1); | |
b180b5d1 VS |
3278 | unsigned int height = r->height / (i != 0 ? vsub : 1); |
3279 | unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); | |
d1b45d5f VS |
3280 | |
3281 | if (!r->handles[i]) { | |
1aa1b11c | 3282 | DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); |
d1b45d5f VS |
3283 | return -EINVAL; |
3284 | } | |
3285 | ||
b180b5d1 VS |
3286 | if ((uint64_t) width * cpp > UINT_MAX) |
3287 | return -ERANGE; | |
3288 | ||
3289 | if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) | |
3290 | return -ERANGE; | |
3291 | ||
3292 | if (r->pitches[i] < width * cpp) { | |
1aa1b11c | 3293 | DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); |
d1b45d5f VS |
3294 | return -EINVAL; |
3295 | } | |
e3eb3250 RC |
3296 | |
3297 | if (r->modifier[i] && !(r->flags & DRM_MODE_FB_MODIFIERS)) { | |
3298 | DRM_DEBUG_KMS("bad fb modifier %llu for plane %d\n", | |
3299 | r->modifier[i], i); | |
3300 | return -EINVAL; | |
3301 | } | |
d1b45d5f VS |
3302 | } |
3303 | ||
3304 | return 0; | |
3305 | } | |
3306 | ||
9a6f5130 CW |
3307 | static struct drm_framebuffer * |
3308 | internal_framebuffer_create(struct drm_device *dev, | |
3309 | struct drm_mode_fb_cmd2 *r, | |
3310 | struct drm_file *file_priv) | |
308e5bcb | 3311 | { |
f453ba04 DA |
3312 | struct drm_mode_config *config = &dev->mode_config; |
3313 | struct drm_framebuffer *fb; | |
4a1b0714 | 3314 | int ret; |
f453ba04 | 3315 | |
e3eb3250 | 3316 | if (r->flags & ~(DRM_MODE_FB_INTERLACED | DRM_MODE_FB_MODIFIERS)) { |
e3cc3520 | 3317 | DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); |
c394c2b0 | 3318 | return ERR_PTR(-EINVAL); |
e3cc3520 VS |
3319 | } |
3320 | ||
f453ba04 | 3321 | if ((config->min_width > r->width) || (r->width > config->max_width)) { |
1aa1b11c | 3322 | DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", |
8cf5c917 | 3323 | r->width, config->min_width, config->max_width); |
c394c2b0 | 3324 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
3325 | } |
3326 | if ((config->min_height > r->height) || (r->height > config->max_height)) { | |
1aa1b11c | 3327 | DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", |
8cf5c917 | 3328 | r->height, config->min_height, config->max_height); |
c394c2b0 | 3329 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
3330 | } |
3331 | ||
e3eb3250 RC |
3332 | if (r->flags & DRM_MODE_FB_MODIFIERS && |
3333 | !dev->mode_config.allow_fb_modifiers) { | |
3334 | DRM_DEBUG_KMS("driver does not support fb modifiers\n"); | |
3335 | return ERR_PTR(-EINVAL); | |
3336 | } | |
3337 | ||
d1b45d5f VS |
3338 | ret = framebuffer_check(r); |
3339 | if (ret) | |
c394c2b0 | 3340 | return ERR_PTR(ret); |
935b5977 | 3341 | |
f453ba04 | 3342 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
cce13ff7 | 3343 | if (IS_ERR(fb)) { |
1aa1b11c | 3344 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
c394c2b0 | 3345 | return fb; |
f453ba04 DA |
3346 | } |
3347 | ||
c394c2b0 MR |
3348 | return fb; |
3349 | } | |
4b096ac1 | 3350 | |
c394c2b0 MR |
3351 | /** |
3352 | * drm_mode_addfb2 - add an FB to the graphics configuration | |
3353 | * @dev: drm device for the ioctl | |
3354 | * @data: data pointer for the ioctl | |
3355 | * @file_priv: drm file for the ioctl call | |
3356 | * | |
3357 | * Add a new FB to the specified CRTC, given a user request with format. This is | |
3358 | * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers | |
3359 | * and uses fourcc codes as pixel format specifiers. | |
3360 | * | |
3361 | * Called by the user via ioctl. | |
3362 | * | |
3363 | * Returns: | |
1a498633 | 3364 | * Zero on success, negative errno on failure. |
c394c2b0 MR |
3365 | */ |
3366 | int drm_mode_addfb2(struct drm_device *dev, | |
3367 | void *data, struct drm_file *file_priv) | |
3368 | { | |
9a6f5130 | 3369 | struct drm_mode_fb_cmd2 *r = data; |
c394c2b0 MR |
3370 | struct drm_framebuffer *fb; |
3371 | ||
3372 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3373 | return -EINVAL; | |
3374 | ||
9a6f5130 | 3375 | fb = internal_framebuffer_create(dev, r, file_priv); |
c394c2b0 MR |
3376 | if (IS_ERR(fb)) |
3377 | return PTR_ERR(fb); | |
3378 | ||
9a6f5130 CW |
3379 | /* Transfer ownership to the filp for reaping on close */ |
3380 | ||
3381 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); | |
3382 | mutex_lock(&file_priv->fbs_lock); | |
3383 | r->fb_id = fb->base.id; | |
3384 | list_add(&fb->filp_head, &file_priv->fbs); | |
3385 | mutex_unlock(&file_priv->fbs_lock); | |
3386 | ||
c394c2b0 | 3387 | return 0; |
f453ba04 DA |
3388 | } |
3389 | ||
3390 | /** | |
3391 | * drm_mode_rmfb - remove an FB from the configuration | |
065a50ed DV |
3392 | * @dev: drm device for the ioctl |
3393 | * @data: data pointer for the ioctl | |
3394 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3395 | * |
f453ba04 DA |
3396 | * Remove the FB specified by the user. |
3397 | * | |
3398 | * Called by the user via ioctl. | |
3399 | * | |
c8e32cc1 | 3400 | * Returns: |
1a498633 | 3401 | * Zero on success, negative errno on failure. |
f453ba04 DA |
3402 | */ |
3403 | int drm_mode_rmfb(struct drm_device *dev, | |
3404 | void *data, struct drm_file *file_priv) | |
3405 | { | |
f453ba04 DA |
3406 | struct drm_framebuffer *fb = NULL; |
3407 | struct drm_framebuffer *fbl = NULL; | |
3408 | uint32_t *id = data; | |
f453ba04 DA |
3409 | int found = 0; |
3410 | ||
fb3b06c8 DA |
3411 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3412 | return -EINVAL; | |
3413 | ||
4b096ac1 | 3414 | mutex_lock(&file_priv->fbs_lock); |
2b677e8c DV |
3415 | mutex_lock(&dev->mode_config.fb_lock); |
3416 | fb = __drm_framebuffer_lookup(dev, *id); | |
3417 | if (!fb) | |
3418 | goto fail_lookup; | |
3419 | ||
f453ba04 DA |
3420 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
3421 | if (fb == fbl) | |
3422 | found = 1; | |
2b677e8c DV |
3423 | if (!found) |
3424 | goto fail_lookup; | |
3425 | ||
3426 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
3427 | __drm_framebuffer_unregister(dev, fb); | |
f453ba04 | 3428 | |
4b096ac1 | 3429 | list_del_init(&fb->filp_head); |
2b677e8c | 3430 | mutex_unlock(&dev->mode_config.fb_lock); |
4b096ac1 | 3431 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 3432 | |
4b096ac1 | 3433 | drm_framebuffer_remove(fb); |
4b096ac1 | 3434 | |
2b677e8c DV |
3435 | return 0; |
3436 | ||
3437 | fail_lookup: | |
3438 | mutex_unlock(&dev->mode_config.fb_lock); | |
3439 | mutex_unlock(&file_priv->fbs_lock); | |
3440 | ||
37c4e705 | 3441 | return -ENOENT; |
f453ba04 DA |
3442 | } |
3443 | ||
3444 | /** | |
3445 | * drm_mode_getfb - get FB info | |
065a50ed DV |
3446 | * @dev: drm device for the ioctl |
3447 | * @data: data pointer for the ioctl | |
3448 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3449 | * |
f453ba04 DA |
3450 | * Lookup the FB given its ID and return info about it. |
3451 | * | |
3452 | * Called by the user via ioctl. | |
3453 | * | |
c8e32cc1 | 3454 | * Returns: |
1a498633 | 3455 | * Zero on success, negative errno on failure. |
f453ba04 DA |
3456 | */ |
3457 | int drm_mode_getfb(struct drm_device *dev, | |
3458 | void *data, struct drm_file *file_priv) | |
3459 | { | |
3460 | struct drm_mode_fb_cmd *r = data; | |
f453ba04 | 3461 | struct drm_framebuffer *fb; |
58c0dca1 | 3462 | int ret; |
f453ba04 | 3463 | |
fb3b06c8 DA |
3464 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3465 | return -EINVAL; | |
3466 | ||
786b99ed | 3467 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
58c0dca1 | 3468 | if (!fb) |
37c4e705 | 3469 | return -ENOENT; |
f453ba04 DA |
3470 | |
3471 | r->height = fb->height; | |
3472 | r->width = fb->width; | |
3473 | r->depth = fb->depth; | |
3474 | r->bpp = fb->bits_per_pixel; | |
01f2c773 | 3475 | r->pitch = fb->pitches[0]; |
101b96f3 | 3476 | if (fb->funcs->create_handle) { |
09f308f7 | 3477 | if (file_priv->is_master || capable(CAP_SYS_ADMIN) || |
43683057 | 3478 | drm_is_control_client(file_priv)) { |
101b96f3 DH |
3479 | ret = fb->funcs->create_handle(fb, file_priv, |
3480 | &r->handle); | |
3481 | } else { | |
3482 | /* GET_FB() is an unprivileged ioctl so we must not | |
3483 | * return a buffer-handle to non-master processes! For | |
3484 | * backwards-compatibility reasons, we cannot make | |
3485 | * GET_FB() privileged, so just return an invalid handle | |
3486 | * for non-masters. */ | |
3487 | r->handle = 0; | |
3488 | ret = 0; | |
3489 | } | |
3490 | } else { | |
af26ef3b | 3491 | ret = -ENODEV; |
101b96f3 | 3492 | } |
f453ba04 | 3493 | |
58c0dca1 DV |
3494 | drm_framebuffer_unreference(fb); |
3495 | ||
f453ba04 DA |
3496 | return ret; |
3497 | } | |
3498 | ||
c8e32cc1 DV |
3499 | /** |
3500 | * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB | |
3501 | * @dev: drm device for the ioctl | |
3502 | * @data: data pointer for the ioctl | |
3503 | * @file_priv: drm file for the ioctl call | |
3504 | * | |
3505 | * Lookup the FB and flush out the damaged area supplied by userspace as a clip | |
3506 | * rectangle list. Generic userspace which does frontbuffer rendering must call | |
3507 | * this ioctl to flush out the changes on manual-update display outputs, e.g. | |
3508 | * usb display-link, mipi manual update panels or edp panel self refresh modes. | |
3509 | * | |
3510 | * Modesetting drivers which always update the frontbuffer do not need to | |
3511 | * implement the corresponding ->dirty framebuffer callback. | |
3512 | * | |
3513 | * Called by the user via ioctl. | |
3514 | * | |
3515 | * Returns: | |
1a498633 | 3516 | * Zero on success, negative errno on failure. |
c8e32cc1 | 3517 | */ |
884840aa JB |
3518 | int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
3519 | void *data, struct drm_file *file_priv) | |
3520 | { | |
3521 | struct drm_clip_rect __user *clips_ptr; | |
3522 | struct drm_clip_rect *clips = NULL; | |
3523 | struct drm_mode_fb_dirty_cmd *r = data; | |
884840aa JB |
3524 | struct drm_framebuffer *fb; |
3525 | unsigned flags; | |
3526 | int num_clips; | |
4a1b0714 | 3527 | int ret; |
884840aa | 3528 | |
fb3b06c8 DA |
3529 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3530 | return -EINVAL; | |
3531 | ||
786b99ed | 3532 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
4ccf097f | 3533 | if (!fb) |
37c4e705 | 3534 | return -ENOENT; |
884840aa JB |
3535 | |
3536 | num_clips = r->num_clips; | |
81f6c7f8 | 3537 | clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; |
884840aa JB |
3538 | |
3539 | if (!num_clips != !clips_ptr) { | |
3540 | ret = -EINVAL; | |
3541 | goto out_err1; | |
3542 | } | |
3543 | ||
3544 | flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; | |
3545 | ||
3546 | /* If userspace annotates copy, clips must come in pairs */ | |
3547 | if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { | |
3548 | ret = -EINVAL; | |
3549 | goto out_err1; | |
3550 | } | |
3551 | ||
3552 | if (num_clips && clips_ptr) { | |
a5cd3351 XW |
3553 | if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { |
3554 | ret = -EINVAL; | |
3555 | goto out_err1; | |
3556 | } | |
bd3f0ff9 | 3557 | clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); |
884840aa JB |
3558 | if (!clips) { |
3559 | ret = -ENOMEM; | |
3560 | goto out_err1; | |
3561 | } | |
3562 | ||
3563 | ret = copy_from_user(clips, clips_ptr, | |
3564 | num_clips * sizeof(*clips)); | |
e902a358 DC |
3565 | if (ret) { |
3566 | ret = -EFAULT; | |
884840aa | 3567 | goto out_err2; |
e902a358 | 3568 | } |
884840aa JB |
3569 | } |
3570 | ||
3571 | if (fb->funcs->dirty) { | |
02b00162 TH |
3572 | ret = fb->funcs->dirty(fb, file_priv, flags, r->color, |
3573 | clips, num_clips); | |
884840aa JB |
3574 | } else { |
3575 | ret = -ENOSYS; | |
884840aa JB |
3576 | } |
3577 | ||
3578 | out_err2: | |
3579 | kfree(clips); | |
3580 | out_err1: | |
4ccf097f DV |
3581 | drm_framebuffer_unreference(fb); |
3582 | ||
884840aa JB |
3583 | return ret; |
3584 | } | |
3585 | ||
3586 | ||
f453ba04 DA |
3587 | /** |
3588 | * drm_fb_release - remove and free the FBs on this file | |
065a50ed | 3589 | * @priv: drm file for the ioctl |
f453ba04 | 3590 | * |
f453ba04 DA |
3591 | * Destroy all the FBs associated with @filp. |
3592 | * | |
3593 | * Called by the user via ioctl. | |
3594 | * | |
c8e32cc1 | 3595 | * Returns: |
1a498633 | 3596 | * Zero on success, negative errno on failure. |
f453ba04 | 3597 | */ |
ea39f835 | 3598 | void drm_fb_release(struct drm_file *priv) |
f453ba04 | 3599 | { |
f453ba04 DA |
3600 | struct drm_device *dev = priv->minor->dev; |
3601 | struct drm_framebuffer *fb, *tfb; | |
3602 | ||
1b116297 DV |
3603 | /* |
3604 | * When the file gets released that means no one else can access the fb | |
e2db726b | 3605 | * list any more, so no need to grab fpriv->fbs_lock. And we need to |
1b116297 DV |
3606 | * avoid upsetting lockdep since the universal cursor code adds a |
3607 | * framebuffer while holding mutex locks. | |
3608 | * | |
3609 | * Note that a real deadlock between fpriv->fbs_lock and the modeset | |
3610 | * locks is impossible here since no one else but this function can get | |
3611 | * at it any more. | |
3612 | */ | |
f453ba04 | 3613 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
2b677e8c DV |
3614 | |
3615 | mutex_lock(&dev->mode_config.fb_lock); | |
3616 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
3617 | __drm_framebuffer_unregister(dev, fb); | |
3618 | mutex_unlock(&dev->mode_config.fb_lock); | |
3619 | ||
4b096ac1 | 3620 | list_del_init(&fb->filp_head); |
2b677e8c DV |
3621 | |
3622 | /* This will also drop the fpriv->fbs reference. */ | |
f7eff60e | 3623 | drm_framebuffer_remove(fb); |
f453ba04 | 3624 | } |
f453ba04 DA |
3625 | } |
3626 | ||
c8e32cc1 DV |
3627 | /** |
3628 | * drm_property_create - create a new property type | |
3629 | * @dev: drm device | |
3630 | * @flags: flags specifying the property type | |
3631 | * @name: name of the property | |
3632 | * @num_values: number of pre-defined values | |
3633 | * | |
3634 | * This creates a new generic drm property which can then be attached to a drm | |
3635 | * object with drm_object_attach_property. The returned property object must be | |
3636 | * freed with drm_property_destroy. | |
3637 | * | |
3b5b9932 DL |
3638 | * Note that the DRM core keeps a per-device list of properties and that, if |
3639 | * drm_mode_config_cleanup() is called, it will destroy all properties created | |
3640 | * by the driver. | |
3641 | * | |
c8e32cc1 DV |
3642 | * Returns: |
3643 | * A pointer to the newly created property on success, NULL on failure. | |
3644 | */ | |
f453ba04 DA |
3645 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
3646 | const char *name, int num_values) | |
3647 | { | |
3648 | struct drm_property *property = NULL; | |
6bfc56aa | 3649 | int ret; |
f453ba04 DA |
3650 | |
3651 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); | |
3652 | if (!property) | |
3653 | return NULL; | |
3654 | ||
98f75de4 RC |
3655 | property->dev = dev; |
3656 | ||
f453ba04 | 3657 | if (num_values) { |
bd3f0ff9 TR |
3658 | property->values = kcalloc(num_values, sizeof(uint64_t), |
3659 | GFP_KERNEL); | |
f453ba04 DA |
3660 | if (!property->values) |
3661 | goto fail; | |
3662 | } | |
3663 | ||
6bfc56aa VS |
3664 | ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
3665 | if (ret) | |
3666 | goto fail; | |
3667 | ||
f453ba04 DA |
3668 | property->flags = flags; |
3669 | property->num_values = num_values; | |
3758b341 | 3670 | INIT_LIST_HEAD(&property->enum_list); |
f453ba04 | 3671 | |
471dd2ef | 3672 | if (name) { |
f453ba04 | 3673 | strncpy(property->name, name, DRM_PROP_NAME_LEN); |
471dd2ef VL |
3674 | property->name[DRM_PROP_NAME_LEN-1] = '\0'; |
3675 | } | |
f453ba04 DA |
3676 | |
3677 | list_add_tail(&property->head, &dev->mode_config.property_list); | |
5ea22f24 RC |
3678 | |
3679 | WARN_ON(!drm_property_type_valid(property)); | |
3680 | ||
f453ba04 DA |
3681 | return property; |
3682 | fail: | |
6bfc56aa | 3683 | kfree(property->values); |
f453ba04 DA |
3684 | kfree(property); |
3685 | return NULL; | |
3686 | } | |
3687 | EXPORT_SYMBOL(drm_property_create); | |
3688 | ||
c8e32cc1 | 3689 | /** |
2aa9d2bc | 3690 | * drm_property_create_enum - create a new enumeration property type |
c8e32cc1 DV |
3691 | * @dev: drm device |
3692 | * @flags: flags specifying the property type | |
3693 | * @name: name of the property | |
3694 | * @props: enumeration lists with property values | |
3695 | * @num_values: number of pre-defined values | |
3696 | * | |
3697 | * This creates a new generic drm property which can then be attached to a drm | |
3698 | * object with drm_object_attach_property. The returned property object must be | |
3699 | * freed with drm_property_destroy. | |
3700 | * | |
3701 | * Userspace is only allowed to set one of the predefined values for enumeration | |
3702 | * properties. | |
3703 | * | |
3704 | * Returns: | |
3705 | * A pointer to the newly created property on success, NULL on failure. | |
3706 | */ | |
4a67d391 SH |
3707 | struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
3708 | const char *name, | |
3709 | const struct drm_prop_enum_list *props, | |
3710 | int num_values) | |
3711 | { | |
3712 | struct drm_property *property; | |
3713 | int i, ret; | |
3714 | ||
3715 | flags |= DRM_MODE_PROP_ENUM; | |
3716 | ||
3717 | property = drm_property_create(dev, flags, name, num_values); | |
3718 | if (!property) | |
3719 | return NULL; | |
3720 | ||
3721 | for (i = 0; i < num_values; i++) { | |
3722 | ret = drm_property_add_enum(property, i, | |
3723 | props[i].type, | |
3724 | props[i].name); | |
3725 | if (ret) { | |
3726 | drm_property_destroy(dev, property); | |
3727 | return NULL; | |
3728 | } | |
3729 | } | |
3730 | ||
3731 | return property; | |
3732 | } | |
3733 | EXPORT_SYMBOL(drm_property_create_enum); | |
3734 | ||
c8e32cc1 | 3735 | /** |
2aa9d2bc | 3736 | * drm_property_create_bitmask - create a new bitmask property type |
c8e32cc1 DV |
3737 | * @dev: drm device |
3738 | * @flags: flags specifying the property type | |
3739 | * @name: name of the property | |
3740 | * @props: enumeration lists with property bitflags | |
295ee853 DV |
3741 | * @num_props: size of the @props array |
3742 | * @supported_bits: bitmask of all supported enumeration values | |
c8e32cc1 | 3743 | * |
295ee853 | 3744 | * This creates a new bitmask drm property which can then be attached to a drm |
c8e32cc1 DV |
3745 | * object with drm_object_attach_property. The returned property object must be |
3746 | * freed with drm_property_destroy. | |
3747 | * | |
3748 | * Compared to plain enumeration properties userspace is allowed to set any | |
3749 | * or'ed together combination of the predefined property bitflag values | |
3750 | * | |
3751 | * Returns: | |
3752 | * A pointer to the newly created property on success, NULL on failure. | |
3753 | */ | |
49e27545 RC |
3754 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
3755 | int flags, const char *name, | |
3756 | const struct drm_prop_enum_list *props, | |
7689ffb3 VS |
3757 | int num_props, |
3758 | uint64_t supported_bits) | |
49e27545 RC |
3759 | { |
3760 | struct drm_property *property; | |
7689ffb3 VS |
3761 | int i, ret, index = 0; |
3762 | int num_values = hweight64(supported_bits); | |
49e27545 RC |
3763 | |
3764 | flags |= DRM_MODE_PROP_BITMASK; | |
3765 | ||
3766 | property = drm_property_create(dev, flags, name, num_values); | |
3767 | if (!property) | |
3768 | return NULL; | |
7689ffb3 VS |
3769 | for (i = 0; i < num_props; i++) { |
3770 | if (!(supported_bits & (1ULL << props[i].type))) | |
3771 | continue; | |
49e27545 | 3772 | |
7689ffb3 VS |
3773 | if (WARN_ON(index >= num_values)) { |
3774 | drm_property_destroy(dev, property); | |
3775 | return NULL; | |
3776 | } | |
3777 | ||
3778 | ret = drm_property_add_enum(property, index++, | |
49e27545 RC |
3779 | props[i].type, |
3780 | props[i].name); | |
3781 | if (ret) { | |
3782 | drm_property_destroy(dev, property); | |
3783 | return NULL; | |
3784 | } | |
3785 | } | |
3786 | ||
3787 | return property; | |
3788 | } | |
3789 | EXPORT_SYMBOL(drm_property_create_bitmask); | |
3790 | ||
ebc44cf3 RC |
3791 | static struct drm_property *property_create_range(struct drm_device *dev, |
3792 | int flags, const char *name, | |
3793 | uint64_t min, uint64_t max) | |
3794 | { | |
3795 | struct drm_property *property; | |
3796 | ||
3797 | property = drm_property_create(dev, flags, name, 2); | |
3798 | if (!property) | |
3799 | return NULL; | |
3800 | ||
3801 | property->values[0] = min; | |
3802 | property->values[1] = max; | |
3803 | ||
3804 | return property; | |
3805 | } | |
3806 | ||
c8e32cc1 | 3807 | /** |
960cd9d4 | 3808 | * drm_property_create_range - create a new unsigned ranged property type |
c8e32cc1 DV |
3809 | * @dev: drm device |
3810 | * @flags: flags specifying the property type | |
3811 | * @name: name of the property | |
3812 | * @min: minimum value of the property | |
3813 | * @max: maximum value of the property | |
3814 | * | |
3815 | * This creates a new generic drm property which can then be attached to a drm | |
3816 | * object with drm_object_attach_property. The returned property object must be | |
3817 | * freed with drm_property_destroy. | |
3818 | * | |
960cd9d4 DV |
3819 | * Userspace is allowed to set any unsigned integer value in the (min, max) |
3820 | * range inclusive. | |
c8e32cc1 DV |
3821 | * |
3822 | * Returns: | |
3823 | * A pointer to the newly created property on success, NULL on failure. | |
3824 | */ | |
d9bc3c02 SH |
3825 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
3826 | const char *name, | |
3827 | uint64_t min, uint64_t max) | |
3828 | { | |
ebc44cf3 RC |
3829 | return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, |
3830 | name, min, max); | |
d9bc3c02 SH |
3831 | } |
3832 | EXPORT_SYMBOL(drm_property_create_range); | |
3833 | ||
960cd9d4 DV |
3834 | /** |
3835 | * drm_property_create_signed_range - create a new signed ranged property type | |
3836 | * @dev: drm device | |
3837 | * @flags: flags specifying the property type | |
3838 | * @name: name of the property | |
3839 | * @min: minimum value of the property | |
3840 | * @max: maximum value of the property | |
3841 | * | |
3842 | * This creates a new generic drm property which can then be attached to a drm | |
3843 | * object with drm_object_attach_property. The returned property object must be | |
3844 | * freed with drm_property_destroy. | |
3845 | * | |
3846 | * Userspace is allowed to set any signed integer value in the (min, max) | |
3847 | * range inclusive. | |
3848 | * | |
3849 | * Returns: | |
3850 | * A pointer to the newly created property on success, NULL on failure. | |
3851 | */ | |
ebc44cf3 RC |
3852 | struct drm_property *drm_property_create_signed_range(struct drm_device *dev, |
3853 | int flags, const char *name, | |
3854 | int64_t min, int64_t max) | |
3855 | { | |
3856 | return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, | |
3857 | name, I642U64(min), I642U64(max)); | |
3858 | } | |
3859 | EXPORT_SYMBOL(drm_property_create_signed_range); | |
3860 | ||
960cd9d4 DV |
3861 | /** |
3862 | * drm_property_create_object - create a new object property type | |
3863 | * @dev: drm device | |
3864 | * @flags: flags specifying the property type | |
3865 | * @name: name of the property | |
3866 | * @type: object type from DRM_MODE_OBJECT_* defines | |
3867 | * | |
3868 | * This creates a new generic drm property which can then be attached to a drm | |
3869 | * object with drm_object_attach_property. The returned property object must be | |
3870 | * freed with drm_property_destroy. | |
3871 | * | |
3872 | * Userspace is only allowed to set this to any property value of the given | |
3873 | * @type. Only useful for atomic properties, which is enforced. | |
3874 | * | |
3875 | * Returns: | |
3876 | * A pointer to the newly created property on success, NULL on failure. | |
3877 | */ | |
98f75de4 RC |
3878 | struct drm_property *drm_property_create_object(struct drm_device *dev, |
3879 | int flags, const char *name, uint32_t type) | |
3880 | { | |
3881 | struct drm_property *property; | |
3882 | ||
3883 | flags |= DRM_MODE_PROP_OBJECT; | |
3884 | ||
960cd9d4 DV |
3885 | if (WARN_ON(!(flags & DRM_MODE_PROP_ATOMIC))) |
3886 | return NULL; | |
3887 | ||
98f75de4 RC |
3888 | property = drm_property_create(dev, flags, name, 1); |
3889 | if (!property) | |
3890 | return NULL; | |
3891 | ||
3892 | property->values[0] = type; | |
3893 | ||
3894 | return property; | |
3895 | } | |
3896 | EXPORT_SYMBOL(drm_property_create_object); | |
3897 | ||
960cd9d4 DV |
3898 | /** |
3899 | * drm_property_create_bool - create a new boolean property type | |
3900 | * @dev: drm device | |
3901 | * @flags: flags specifying the property type | |
3902 | * @name: name of the property | |
3903 | * | |
3904 | * This creates a new generic drm property which can then be attached to a drm | |
3905 | * object with drm_object_attach_property. The returned property object must be | |
3906 | * freed with drm_property_destroy. | |
3907 | * | |
3908 | * This is implemented as a ranged property with only {0, 1} as valid values. | |
3909 | * | |
3910 | * Returns: | |
3911 | * A pointer to the newly created property on success, NULL on failure. | |
3912 | */ | |
3913 | struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags, | |
3914 | const char *name) | |
3915 | { | |
3916 | return drm_property_create_range(dev, flags, name, 0, 1); | |
3917 | } | |
3918 | EXPORT_SYMBOL(drm_property_create_bool); | |
3919 | ||
c8e32cc1 DV |
3920 | /** |
3921 | * drm_property_add_enum - add a possible value to an enumeration property | |
3922 | * @property: enumeration property to change | |
3923 | * @index: index of the new enumeration | |
3924 | * @value: value of the new enumeration | |
3925 | * @name: symbolic name of the new enumeration | |
3926 | * | |
3927 | * This functions adds enumerations to a property. | |
3928 | * | |
3929 | * It's use is deprecated, drivers should use one of the more specific helpers | |
3930 | * to directly create the property with all enumerations already attached. | |
3931 | * | |
3932 | * Returns: | |
3933 | * Zero on success, error code on failure. | |
3934 | */ | |
f453ba04 DA |
3935 | int drm_property_add_enum(struct drm_property *property, int index, |
3936 | uint64_t value, const char *name) | |
3937 | { | |
3938 | struct drm_property_enum *prop_enum; | |
3939 | ||
5ea22f24 RC |
3940 | if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3941 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) | |
49e27545 RC |
3942 | return -EINVAL; |
3943 | ||
3944 | /* | |
3945 | * Bitmask enum properties have the additional constraint of values | |
3946 | * from 0 to 63 | |
3947 | */ | |
5ea22f24 RC |
3948 | if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && |
3949 | (value > 63)) | |
f453ba04 DA |
3950 | return -EINVAL; |
3951 | ||
3758b341 DV |
3952 | if (!list_empty(&property->enum_list)) { |
3953 | list_for_each_entry(prop_enum, &property->enum_list, head) { | |
f453ba04 DA |
3954 | if (prop_enum->value == value) { |
3955 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3956 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3957 | return 0; | |
3958 | } | |
3959 | } | |
3960 | } | |
3961 | ||
3962 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); | |
3963 | if (!prop_enum) | |
3964 | return -ENOMEM; | |
3965 | ||
3966 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3967 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3968 | prop_enum->value = value; | |
3969 | ||
3970 | property->values[index] = value; | |
3758b341 | 3971 | list_add_tail(&prop_enum->head, &property->enum_list); |
f453ba04 DA |
3972 | return 0; |
3973 | } | |
3974 | EXPORT_SYMBOL(drm_property_add_enum); | |
3975 | ||
c8e32cc1 DV |
3976 | /** |
3977 | * drm_property_destroy - destroy a drm property | |
3978 | * @dev: drm device | |
3979 | * @property: property to destry | |
3980 | * | |
3981 | * This function frees a property including any attached resources like | |
3982 | * enumeration values. | |
3983 | */ | |
f453ba04 DA |
3984 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) |
3985 | { | |
3986 | struct drm_property_enum *prop_enum, *pt; | |
3987 | ||
3758b341 | 3988 | list_for_each_entry_safe(prop_enum, pt, &property->enum_list, head) { |
f453ba04 DA |
3989 | list_del(&prop_enum->head); |
3990 | kfree(prop_enum); | |
3991 | } | |
3992 | ||
3993 | if (property->num_values) | |
3994 | kfree(property->values); | |
3995 | drm_mode_object_put(dev, &property->base); | |
3996 | list_del(&property->head); | |
3997 | kfree(property); | |
3998 | } | |
3999 | EXPORT_SYMBOL(drm_property_destroy); | |
4000 | ||
c8e32cc1 DV |
4001 | /** |
4002 | * drm_object_attach_property - attach a property to a modeset object | |
4003 | * @obj: drm modeset object | |
4004 | * @property: property to attach | |
4005 | * @init_val: initial value of the property | |
4006 | * | |
4007 | * This attaches the given property to the modeset object with the given initial | |
4008 | * value. Currently this function cannot fail since the properties are stored in | |
4009 | * a statically sized array. | |
4010 | */ | |
c543188a PZ |
4011 | void drm_object_attach_property(struct drm_mode_object *obj, |
4012 | struct drm_property *property, | |
4013 | uint64_t init_val) | |
4014 | { | |
7f88a9be | 4015 | int count = obj->properties->count; |
c543188a | 4016 | |
7f88a9be PZ |
4017 | if (count == DRM_OBJECT_MAX_PROPERTY) { |
4018 | WARN(1, "Failed to attach object property (type: 0x%x). Please " | |
4019 | "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " | |
4020 | "you see this message on the same object type.\n", | |
4021 | obj->type); | |
4022 | return; | |
c543188a PZ |
4023 | } |
4024 | ||
b17cd757 | 4025 | obj->properties->properties[count] = property; |
7f88a9be PZ |
4026 | obj->properties->values[count] = init_val; |
4027 | obj->properties->count++; | |
88a48e29 RC |
4028 | if (property->flags & DRM_MODE_PROP_ATOMIC) |
4029 | obj->properties->atomic_count++; | |
c543188a PZ |
4030 | } |
4031 | EXPORT_SYMBOL(drm_object_attach_property); | |
4032 | ||
c8e32cc1 DV |
4033 | /** |
4034 | * drm_object_property_set_value - set the value of a property | |
4035 | * @obj: drm mode object to set property value for | |
4036 | * @property: property to set | |
4037 | * @val: value the property should be set to | |
4038 | * | |
4039 | * This functions sets a given property on a given object. This function only | |
4040 | * changes the software state of the property, it does not call into the | |
4041 | * driver's ->set_property callback. | |
4042 | * | |
4043 | * Returns: | |
4044 | * Zero on success, error code on failure. | |
4045 | */ | |
c543188a PZ |
4046 | int drm_object_property_set_value(struct drm_mode_object *obj, |
4047 | struct drm_property *property, uint64_t val) | |
4048 | { | |
4049 | int i; | |
4050 | ||
7f88a9be | 4051 | for (i = 0; i < obj->properties->count; i++) { |
b17cd757 | 4052 | if (obj->properties->properties[i] == property) { |
c543188a PZ |
4053 | obj->properties->values[i] = val; |
4054 | return 0; | |
4055 | } | |
4056 | } | |
4057 | ||
4058 | return -EINVAL; | |
4059 | } | |
4060 | EXPORT_SYMBOL(drm_object_property_set_value); | |
4061 | ||
c8e32cc1 DV |
4062 | /** |
4063 | * drm_object_property_get_value - retrieve the value of a property | |
4064 | * @obj: drm mode object to get property value from | |
4065 | * @property: property to retrieve | |
4066 | * @val: storage for the property value | |
4067 | * | |
4068 | * This function retrieves the softare state of the given property for the given | |
4069 | * property. Since there is no driver callback to retrieve the current property | |
4070 | * value this might be out of sync with the hardware, depending upon the driver | |
4071 | * and property. | |
4072 | * | |
4073 | * Returns: | |
4074 | * Zero on success, error code on failure. | |
4075 | */ | |
c543188a PZ |
4076 | int drm_object_property_get_value(struct drm_mode_object *obj, |
4077 | struct drm_property *property, uint64_t *val) | |
4078 | { | |
4079 | int i; | |
4080 | ||
88a48e29 RC |
4081 | /* read-only properties bypass atomic mechanism and still store |
4082 | * their value in obj->properties->values[].. mostly to avoid | |
4083 | * having to deal w/ EDID and similar props in atomic paths: | |
4084 | */ | |
4085 | if (drm_core_check_feature(property->dev, DRIVER_ATOMIC) && | |
4086 | !(property->flags & DRM_MODE_PROP_IMMUTABLE)) | |
4087 | return drm_atomic_get_property(obj, property, val); | |
4088 | ||
7f88a9be | 4089 | for (i = 0; i < obj->properties->count; i++) { |
b17cd757 | 4090 | if (obj->properties->properties[i] == property) { |
c543188a PZ |
4091 | *val = obj->properties->values[i]; |
4092 | return 0; | |
4093 | } | |
4094 | } | |
4095 | ||
4096 | return -EINVAL; | |
4097 | } | |
4098 | EXPORT_SYMBOL(drm_object_property_get_value); | |
4099 | ||
c8e32cc1 | 4100 | /** |
1a498633 | 4101 | * drm_mode_getproperty_ioctl - get the property metadata |
c8e32cc1 DV |
4102 | * @dev: DRM device |
4103 | * @data: ioctl data | |
4104 | * @file_priv: DRM file info | |
4105 | * | |
1a498633 DV |
4106 | * This function retrieves the metadata for a given property, like the different |
4107 | * possible values for an enum property or the limits for a range property. | |
4108 | * | |
4109 | * Blob properties are special | |
c8e32cc1 DV |
4110 | * |
4111 | * Called by the user via ioctl. | |
4112 | * | |
4113 | * Returns: | |
1a498633 | 4114 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4115 | */ |
f453ba04 DA |
4116 | int drm_mode_getproperty_ioctl(struct drm_device *dev, |
4117 | void *data, struct drm_file *file_priv) | |
4118 | { | |
f453ba04 DA |
4119 | struct drm_mode_get_property *out_resp = data; |
4120 | struct drm_property *property; | |
4121 | int enum_count = 0; | |
f453ba04 DA |
4122 | int value_count = 0; |
4123 | int ret = 0, i; | |
4124 | int copied; | |
4125 | struct drm_property_enum *prop_enum; | |
4126 | struct drm_mode_property_enum __user *enum_ptr; | |
f453ba04 | 4127 | uint64_t __user *values_ptr; |
f453ba04 | 4128 | |
fb3b06c8 DA |
4129 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4130 | return -EINVAL; | |
4131 | ||
84849903 | 4132 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4133 | property = drm_property_find(dev, out_resp->prop_id); |
4134 | if (!property) { | |
f27657f2 | 4135 | ret = -ENOENT; |
f453ba04 DA |
4136 | goto done; |
4137 | } | |
f453ba04 | 4138 | |
5ea22f24 RC |
4139 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
4140 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
3758b341 | 4141 | list_for_each_entry(prop_enum, &property->enum_list, head) |
f453ba04 | 4142 | enum_count++; |
f453ba04 DA |
4143 | } |
4144 | ||
4145 | value_count = property->num_values; | |
4146 | ||
4147 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); | |
4148 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; | |
4149 | out_resp->flags = property->flags; | |
4150 | ||
4151 | if ((out_resp->count_values >= value_count) && value_count) { | |
81f6c7f8 | 4152 | values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; |
f453ba04 DA |
4153 | for (i = 0; i < value_count; i++) { |
4154 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { | |
4155 | ret = -EFAULT; | |
4156 | goto done; | |
4157 | } | |
4158 | } | |
4159 | } | |
4160 | out_resp->count_values = value_count; | |
4161 | ||
5ea22f24 RC |
4162 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
4163 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
f453ba04 DA |
4164 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
4165 | copied = 0; | |
81f6c7f8 | 4166 | enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; |
3758b341 | 4167 | list_for_each_entry(prop_enum, &property->enum_list, head) { |
f453ba04 DA |
4168 | |
4169 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { | |
4170 | ret = -EFAULT; | |
4171 | goto done; | |
4172 | } | |
4173 | ||
4174 | if (copy_to_user(&enum_ptr[copied].name, | |
4175 | &prop_enum->name, DRM_PROP_NAME_LEN)) { | |
4176 | ret = -EFAULT; | |
4177 | goto done; | |
4178 | } | |
4179 | copied++; | |
4180 | } | |
4181 | } | |
4182 | out_resp->count_enum_blobs = enum_count; | |
4183 | } | |
4184 | ||
3758b341 DV |
4185 | /* |
4186 | * NOTE: The idea seems to have been to use this to read all the blob | |
4187 | * property values. But nothing ever added them to the corresponding | |
4188 | * list, userspace always used the special-purpose get_blob ioctl to | |
4189 | * read the value for a blob property. It also doesn't make a lot of | |
4190 | * sense to return values here when everything else is just metadata for | |
4191 | * the property itself. | |
4192 | */ | |
4193 | if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) | |
4194 | out_resp->count_enum_blobs = 0; | |
f453ba04 | 4195 | done: |
84849903 | 4196 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4197 | return ret; |
4198 | } | |
4199 | ||
ecbbe59b TR |
4200 | static struct drm_property_blob * |
4201 | drm_property_create_blob(struct drm_device *dev, size_t length, | |
12e6cecd | 4202 | const void *data) |
f453ba04 DA |
4203 | { |
4204 | struct drm_property_blob *blob; | |
6bfc56aa | 4205 | int ret; |
f453ba04 DA |
4206 | |
4207 | if (!length || !data) | |
4208 | return NULL; | |
4209 | ||
4210 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); | |
4211 | if (!blob) | |
4212 | return NULL; | |
4213 | ||
6bfc56aa VS |
4214 | ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); |
4215 | if (ret) { | |
4216 | kfree(blob); | |
4217 | return NULL; | |
4218 | } | |
4219 | ||
f453ba04 DA |
4220 | blob->length = length; |
4221 | ||
4222 | memcpy(blob->data, data, length); | |
4223 | ||
f453ba04 DA |
4224 | list_add_tail(&blob->head, &dev->mode_config.property_blob_list); |
4225 | return blob; | |
4226 | } | |
4227 | ||
4228 | static void drm_property_destroy_blob(struct drm_device *dev, | |
4229 | struct drm_property_blob *blob) | |
4230 | { | |
4231 | drm_mode_object_put(dev, &blob->base); | |
4232 | list_del(&blob->head); | |
4233 | kfree(blob); | |
4234 | } | |
4235 | ||
c8e32cc1 DV |
4236 | /** |
4237 | * drm_mode_getblob_ioctl - get the contents of a blob property value | |
4238 | * @dev: DRM device | |
4239 | * @data: ioctl data | |
4240 | * @file_priv: DRM file info | |
4241 | * | |
4242 | * This function retrieves the contents of a blob property. The value stored in | |
4243 | * an object's blob property is just a normal modeset object id. | |
4244 | * | |
4245 | * Called by the user via ioctl. | |
4246 | * | |
4247 | * Returns: | |
1a498633 | 4248 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4249 | */ |
f453ba04 DA |
4250 | int drm_mode_getblob_ioctl(struct drm_device *dev, |
4251 | void *data, struct drm_file *file_priv) | |
4252 | { | |
f453ba04 DA |
4253 | struct drm_mode_get_blob *out_resp = data; |
4254 | struct drm_property_blob *blob; | |
4255 | int ret = 0; | |
81f6c7f8 | 4256 | void __user *blob_ptr; |
f453ba04 | 4257 | |
fb3b06c8 DA |
4258 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4259 | return -EINVAL; | |
4260 | ||
84849903 | 4261 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4262 | blob = drm_property_blob_find(dev, out_resp->blob_id); |
4263 | if (!blob) { | |
f27657f2 | 4264 | ret = -ENOENT; |
f453ba04 DA |
4265 | goto done; |
4266 | } | |
f453ba04 DA |
4267 | |
4268 | if (out_resp->length == blob->length) { | |
81f6c7f8 | 4269 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
4dfd909f | 4270 | if (copy_to_user(blob_ptr, blob->data, blob->length)) { |
f453ba04 DA |
4271 | ret = -EFAULT; |
4272 | goto done; | |
4273 | } | |
4274 | } | |
4275 | out_resp->length = blob->length; | |
4276 | ||
4277 | done: | |
84849903 | 4278 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4279 | return ret; |
4280 | } | |
4281 | ||
cc7096fb DA |
4282 | /** |
4283 | * drm_mode_connector_set_path_property - set tile property on connector | |
4284 | * @connector: connector to set property on. | |
4285 | * @path: path to use for property. | |
4286 | * | |
4287 | * This creates a property to expose to userspace to specify a | |
4288 | * connector path. This is mainly used for DisplayPort MST where | |
4289 | * connectors have a topology and we want to allow userspace to give | |
4290 | * them more meaningful names. | |
4291 | * | |
4292 | * Returns: | |
1a498633 | 4293 | * Zero on success, negative errno on failure. |
cc7096fb | 4294 | */ |
43aba7eb | 4295 | int drm_mode_connector_set_path_property(struct drm_connector *connector, |
12e6cecd | 4296 | const char *path) |
43aba7eb DA |
4297 | { |
4298 | struct drm_device *dev = connector->dev; | |
ecbbe59b TR |
4299 | size_t size = strlen(path) + 1; |
4300 | int ret; | |
43aba7eb DA |
4301 | |
4302 | connector->path_blob_ptr = drm_property_create_blob(connector->dev, | |
4303 | size, path); | |
4304 | if (!connector->path_blob_ptr) | |
4305 | return -EINVAL; | |
4306 | ||
4307 | ret = drm_object_property_set_value(&connector->base, | |
4308 | dev->mode_config.path_property, | |
4309 | connector->path_blob_ptr->base.id); | |
4310 | return ret; | |
4311 | } | |
4312 | EXPORT_SYMBOL(drm_mode_connector_set_path_property); | |
4313 | ||
6f134d7b DA |
4314 | /** |
4315 | * drm_mode_connector_set_tile_property - set tile property on connector | |
4316 | * @connector: connector to set property on. | |
4317 | * | |
4318 | * This looks up the tile information for a connector, and creates a | |
4319 | * property for userspace to parse if it exists. The property is of | |
4320 | * the form of 8 integers using ':' as a separator. | |
4321 | * | |
4322 | * Returns: | |
4323 | * Zero on success, errno on failure. | |
4324 | */ | |
4325 | int drm_mode_connector_set_tile_property(struct drm_connector *connector) | |
4326 | { | |
4327 | struct drm_device *dev = connector->dev; | |
4328 | int ret, size; | |
4329 | char tile[256]; | |
4330 | ||
4331 | if (connector->tile_blob_ptr) | |
4332 | drm_property_destroy_blob(dev, connector->tile_blob_ptr); | |
4333 | ||
4334 | if (!connector->has_tile) { | |
4335 | connector->tile_blob_ptr = NULL; | |
4336 | ret = drm_object_property_set_value(&connector->base, | |
4337 | dev->mode_config.tile_property, 0); | |
4338 | return ret; | |
4339 | } | |
4340 | ||
4341 | snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d", | |
4342 | connector->tile_group->id, connector->tile_is_single_monitor, | |
4343 | connector->num_h_tile, connector->num_v_tile, | |
4344 | connector->tile_h_loc, connector->tile_v_loc, | |
4345 | connector->tile_h_size, connector->tile_v_size); | |
4346 | size = strlen(tile) + 1; | |
4347 | ||
4348 | connector->tile_blob_ptr = drm_property_create_blob(connector->dev, | |
4349 | size, tile); | |
4350 | if (!connector->tile_blob_ptr) | |
4351 | return -EINVAL; | |
4352 | ||
4353 | ret = drm_object_property_set_value(&connector->base, | |
4354 | dev->mode_config.tile_property, | |
4355 | connector->tile_blob_ptr->base.id); | |
4356 | return ret; | |
4357 | } | |
4358 | EXPORT_SYMBOL(drm_mode_connector_set_tile_property); | |
4359 | ||
c8e32cc1 DV |
4360 | /** |
4361 | * drm_mode_connector_update_edid_property - update the edid property of a connector | |
4362 | * @connector: drm connector | |
4363 | * @edid: new value of the edid property | |
4364 | * | |
4365 | * This function creates a new blob modeset object and assigns its id to the | |
4366 | * connector's edid property. | |
4367 | * | |
4368 | * Returns: | |
1a498633 | 4369 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4370 | */ |
f453ba04 | 4371 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
12e6cecd | 4372 | const struct edid *edid) |
f453ba04 DA |
4373 | { |
4374 | struct drm_device *dev = connector->dev; | |
ecbbe59b TR |
4375 | size_t size; |
4376 | int ret; | |
f453ba04 | 4377 | |
4cf2b281 TW |
4378 | /* ignore requests to set edid when overridden */ |
4379 | if (connector->override_edid) | |
4380 | return 0; | |
4381 | ||
f453ba04 DA |
4382 | if (connector->edid_blob_ptr) |
4383 | drm_property_destroy_blob(dev, connector->edid_blob_ptr); | |
4384 | ||
4385 | /* Delete edid, when there is none. */ | |
4386 | if (!edid) { | |
4387 | connector->edid_blob_ptr = NULL; | |
58495563 | 4388 | ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0); |
f453ba04 DA |
4389 | return ret; |
4390 | } | |
4391 | ||
7466f4cc AJ |
4392 | size = EDID_LENGTH * (1 + edid->extensions); |
4393 | connector->edid_blob_ptr = drm_property_create_blob(connector->dev, | |
4394 | size, edid); | |
e655d122 SK |
4395 | if (!connector->edid_blob_ptr) |
4396 | return -EINVAL; | |
f453ba04 | 4397 | |
58495563 | 4398 | ret = drm_object_property_set_value(&connector->base, |
f453ba04 DA |
4399 | dev->mode_config.edid_property, |
4400 | connector->edid_blob_ptr->base.id); | |
4401 | ||
4402 | return ret; | |
4403 | } | |
4404 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); | |
4405 | ||
3843e71f RC |
4406 | /* Some properties could refer to dynamic refcnt'd objects, or things that |
4407 | * need special locking to handle lifetime issues (ie. to ensure the prop | |
4408 | * value doesn't become invalid part way through the property update due to | |
4409 | * race). The value returned by reference via 'obj' should be passed back | |
4410 | * to drm_property_change_valid_put() after the property is set (and the | |
4411 | * object to which the property is attached has a chance to take it's own | |
4412 | * reference). | |
4413 | */ | |
d34f20d6 | 4414 | bool drm_property_change_valid_get(struct drm_property *property, |
3843e71f | 4415 | uint64_t value, struct drm_mode_object **ref) |
26a34815 | 4416 | { |
2ca651d1 TR |
4417 | int i; |
4418 | ||
26a34815 PZ |
4419 | if (property->flags & DRM_MODE_PROP_IMMUTABLE) |
4420 | return false; | |
5ea22f24 | 4421 | |
3843e71f RC |
4422 | *ref = NULL; |
4423 | ||
5ea22f24 | 4424 | if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) { |
26a34815 PZ |
4425 | if (value < property->values[0] || value > property->values[1]) |
4426 | return false; | |
4427 | return true; | |
ebc44cf3 RC |
4428 | } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) { |
4429 | int64_t svalue = U642I64(value); | |
4dfd909f | 4430 | |
ebc44cf3 RC |
4431 | if (svalue < U642I64(property->values[0]) || |
4432 | svalue > U642I64(property->values[1])) | |
4433 | return false; | |
4434 | return true; | |
5ea22f24 | 4435 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
592c20ee | 4436 | uint64_t valid_mask = 0; |
4dfd909f | 4437 | |
49e27545 RC |
4438 | for (i = 0; i < property->num_values; i++) |
4439 | valid_mask |= (1ULL << property->values[i]); | |
4440 | return !(value & ~valid_mask); | |
5ea22f24 | 4441 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
c4a56750 VS |
4442 | /* Only the driver knows */ |
4443 | return true; | |
98f75de4 | 4444 | } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { |
98f75de4 RC |
4445 | /* a zero value for an object property translates to null: */ |
4446 | if (value == 0) | |
4447 | return true; | |
3843e71f RC |
4448 | |
4449 | /* handle refcnt'd objects specially: */ | |
4450 | if (property->values[0] == DRM_MODE_OBJECT_FB) { | |
4451 | struct drm_framebuffer *fb; | |
4452 | fb = drm_framebuffer_lookup(property->dev, value); | |
4453 | if (fb) { | |
4454 | *ref = &fb->base; | |
4455 | return true; | |
4456 | } else { | |
4457 | return false; | |
4458 | } | |
4459 | } else { | |
4460 | return _object_find(property->dev, value, property->values[0]) != NULL; | |
4461 | } | |
26a34815 | 4462 | } |
2ca651d1 TR |
4463 | |
4464 | for (i = 0; i < property->num_values; i++) | |
4465 | if (property->values[i] == value) | |
4466 | return true; | |
4467 | return false; | |
26a34815 PZ |
4468 | } |
4469 | ||
d34f20d6 | 4470 | void drm_property_change_valid_put(struct drm_property *property, |
3843e71f RC |
4471 | struct drm_mode_object *ref) |
4472 | { | |
4473 | if (!ref) | |
4474 | return; | |
4475 | ||
4476 | if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { | |
4477 | if (property->values[0] == DRM_MODE_OBJECT_FB) | |
4478 | drm_framebuffer_unreference(obj_to_fb(ref)); | |
4479 | } | |
4480 | } | |
4481 | ||
c8e32cc1 DV |
4482 | /** |
4483 | * drm_mode_connector_property_set_ioctl - set the current value of a connector property | |
4484 | * @dev: DRM device | |
4485 | * @data: ioctl data | |
4486 | * @file_priv: DRM file info | |
4487 | * | |
4488 | * This function sets the current value for a connectors's property. It also | |
4489 | * calls into a driver's ->set_property callback to update the hardware state | |
4490 | * | |
4491 | * Called by the user via ioctl. | |
4492 | * | |
4493 | * Returns: | |
1a498633 | 4494 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4495 | */ |
f453ba04 DA |
4496 | int drm_mode_connector_property_set_ioctl(struct drm_device *dev, |
4497 | void *data, struct drm_file *file_priv) | |
4498 | { | |
0057d8dd PZ |
4499 | struct drm_mode_connector_set_property *conn_set_prop = data; |
4500 | struct drm_mode_obj_set_property obj_set_prop = { | |
4501 | .value = conn_set_prop->value, | |
4502 | .prop_id = conn_set_prop->prop_id, | |
4503 | .obj_id = conn_set_prop->connector_id, | |
4504 | .obj_type = DRM_MODE_OBJECT_CONNECTOR | |
4505 | }; | |
fb3b06c8 | 4506 | |
0057d8dd PZ |
4507 | /* It does all the locking and checking we need */ |
4508 | return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); | |
f453ba04 DA |
4509 | } |
4510 | ||
c543188a PZ |
4511 | static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, |
4512 | struct drm_property *property, | |
4513 | uint64_t value) | |
4514 | { | |
4515 | int ret = -EINVAL; | |
4516 | struct drm_connector *connector = obj_to_connector(obj); | |
4517 | ||
4518 | /* Do DPMS ourselves */ | |
4519 | if (property == connector->dev->mode_config.dpms_property) { | |
4520 | if (connector->funcs->dpms) | |
4521 | (*connector->funcs->dpms)(connector, (int)value); | |
4522 | ret = 0; | |
4523 | } else if (connector->funcs->set_property) | |
4524 | ret = connector->funcs->set_property(connector, property, value); | |
4525 | ||
4526 | /* store the property value if successful */ | |
4527 | if (!ret) | |
58495563 | 4528 | drm_object_property_set_value(&connector->base, property, value); |
c543188a PZ |
4529 | return ret; |
4530 | } | |
4531 | ||
bffd9de0 PZ |
4532 | static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
4533 | struct drm_property *property, | |
4534 | uint64_t value) | |
4535 | { | |
4536 | int ret = -EINVAL; | |
4537 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
4538 | ||
4539 | if (crtc->funcs->set_property) | |
4540 | ret = crtc->funcs->set_property(crtc, property, value); | |
4541 | if (!ret) | |
4542 | drm_object_property_set_value(obj, property, value); | |
4543 | ||
4544 | return ret; | |
4545 | } | |
4546 | ||
3a5f87c2 TW |
4547 | /** |
4548 | * drm_mode_plane_set_obj_prop - set the value of a property | |
4549 | * @plane: drm plane object to set property value for | |
4550 | * @property: property to set | |
4551 | * @value: value the property should be set to | |
4552 | * | |
4553 | * This functions sets a given property on a given plane object. This function | |
4554 | * calls the driver's ->set_property callback and changes the software state of | |
4555 | * the property if the callback succeeds. | |
4556 | * | |
4557 | * Returns: | |
4558 | * Zero on success, error code on failure. | |
4559 | */ | |
4560 | int drm_mode_plane_set_obj_prop(struct drm_plane *plane, | |
4561 | struct drm_property *property, | |
4562 | uint64_t value) | |
4d93914a RC |
4563 | { |
4564 | int ret = -EINVAL; | |
3a5f87c2 | 4565 | struct drm_mode_object *obj = &plane->base; |
4d93914a RC |
4566 | |
4567 | if (plane->funcs->set_property) | |
4568 | ret = plane->funcs->set_property(plane, property, value); | |
4569 | if (!ret) | |
4570 | drm_object_property_set_value(obj, property, value); | |
4571 | ||
4572 | return ret; | |
4573 | } | |
3a5f87c2 | 4574 | EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); |
4d93914a | 4575 | |
c8e32cc1 | 4576 | /** |
1a498633 | 4577 | * drm_mode_obj_get_properties_ioctl - get the current value of a object's property |
c8e32cc1 DV |
4578 | * @dev: DRM device |
4579 | * @data: ioctl data | |
4580 | * @file_priv: DRM file info | |
4581 | * | |
4582 | * This function retrieves the current value for an object's property. Compared | |
4583 | * to the connector specific ioctl this one is extended to also work on crtc and | |
4584 | * plane objects. | |
4585 | * | |
4586 | * Called by the user via ioctl. | |
4587 | * | |
4588 | * Returns: | |
1a498633 | 4589 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4590 | */ |
c543188a PZ |
4591 | int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
4592 | struct drm_file *file_priv) | |
4593 | { | |
4594 | struct drm_mode_obj_get_properties *arg = data; | |
4595 | struct drm_mode_object *obj; | |
4596 | int ret = 0; | |
c543188a PZ |
4597 | |
4598 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4599 | return -EINVAL; | |
4600 | ||
84849903 | 4601 | drm_modeset_lock_all(dev); |
c543188a PZ |
4602 | |
4603 | obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
4604 | if (!obj) { | |
f27657f2 | 4605 | ret = -ENOENT; |
c543188a PZ |
4606 | goto out; |
4607 | } | |
4608 | if (!obj->properties) { | |
4609 | ret = -EINVAL; | |
4610 | goto out; | |
4611 | } | |
4612 | ||
88a48e29 | 4613 | ret = get_properties(obj, file_priv->atomic, |
95cbf110 RC |
4614 | (uint32_t __user *)(unsigned long)(arg->props_ptr), |
4615 | (uint64_t __user *)(unsigned long)(arg->prop_values_ptr), | |
4616 | &arg->count_props); | |
c543188a | 4617 | |
c543188a | 4618 | out: |
84849903 | 4619 | drm_modeset_unlock_all(dev); |
c543188a PZ |
4620 | return ret; |
4621 | } | |
4622 | ||
c8e32cc1 DV |
4623 | /** |
4624 | * drm_mode_obj_set_property_ioctl - set the current value of an object's property | |
4625 | * @dev: DRM device | |
4626 | * @data: ioctl data | |
4627 | * @file_priv: DRM file info | |
4628 | * | |
4629 | * This function sets the current value for an object's property. It also calls | |
4630 | * into a driver's ->set_property callback to update the hardware state. | |
4631 | * Compared to the connector specific ioctl this one is extended to also work on | |
4632 | * crtc and plane objects. | |
4633 | * | |
4634 | * Called by the user via ioctl. | |
4635 | * | |
4636 | * Returns: | |
1a498633 | 4637 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4638 | */ |
c543188a PZ |
4639 | int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, |
4640 | struct drm_file *file_priv) | |
4641 | { | |
4642 | struct drm_mode_obj_set_property *arg = data; | |
4643 | struct drm_mode_object *arg_obj; | |
4644 | struct drm_mode_object *prop_obj; | |
4645 | struct drm_property *property; | |
3843e71f RC |
4646 | int i, ret = -EINVAL; |
4647 | struct drm_mode_object *ref; | |
c543188a PZ |
4648 | |
4649 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4650 | return -EINVAL; | |
4651 | ||
84849903 | 4652 | drm_modeset_lock_all(dev); |
c543188a PZ |
4653 | |
4654 | arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
f27657f2 VS |
4655 | if (!arg_obj) { |
4656 | ret = -ENOENT; | |
c543188a | 4657 | goto out; |
f27657f2 | 4658 | } |
c543188a PZ |
4659 | if (!arg_obj->properties) |
4660 | goto out; | |
4661 | ||
7f88a9be | 4662 | for (i = 0; i < arg_obj->properties->count; i++) |
b17cd757 | 4663 | if (arg_obj->properties->properties[i]->base.id == arg->prop_id) |
c543188a PZ |
4664 | break; |
4665 | ||
7f88a9be | 4666 | if (i == arg_obj->properties->count) |
c543188a PZ |
4667 | goto out; |
4668 | ||
4669 | prop_obj = drm_mode_object_find(dev, arg->prop_id, | |
4670 | DRM_MODE_OBJECT_PROPERTY); | |
f27657f2 VS |
4671 | if (!prop_obj) { |
4672 | ret = -ENOENT; | |
c543188a | 4673 | goto out; |
f27657f2 | 4674 | } |
c543188a PZ |
4675 | property = obj_to_property(prop_obj); |
4676 | ||
3843e71f | 4677 | if (!drm_property_change_valid_get(property, arg->value, &ref)) |
c543188a PZ |
4678 | goto out; |
4679 | ||
4680 | switch (arg_obj->type) { | |
4681 | case DRM_MODE_OBJECT_CONNECTOR: | |
4682 | ret = drm_mode_connector_set_obj_prop(arg_obj, property, | |
4683 | arg->value); | |
4684 | break; | |
bffd9de0 PZ |
4685 | case DRM_MODE_OBJECT_CRTC: |
4686 | ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); | |
4687 | break; | |
4d93914a | 4688 | case DRM_MODE_OBJECT_PLANE: |
3a5f87c2 TW |
4689 | ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj), |
4690 | property, arg->value); | |
4d93914a | 4691 | break; |
c543188a PZ |
4692 | } |
4693 | ||
3843e71f RC |
4694 | drm_property_change_valid_put(property, ref); |
4695 | ||
c543188a | 4696 | out: |
84849903 | 4697 | drm_modeset_unlock_all(dev); |
c543188a PZ |
4698 | return ret; |
4699 | } | |
4700 | ||
c8e32cc1 DV |
4701 | /** |
4702 | * drm_mode_connector_attach_encoder - attach a connector to an encoder | |
4703 | * @connector: connector to attach | |
4704 | * @encoder: encoder to attach @connector to | |
4705 | * | |
4706 | * This function links up a connector to an encoder. Note that the routing | |
4707 | * restrictions between encoders and crtcs are exposed to userspace through the | |
4708 | * possible_clones and possible_crtcs bitmasks. | |
4709 | * | |
4710 | * Returns: | |
1a498633 | 4711 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4712 | */ |
f453ba04 DA |
4713 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
4714 | struct drm_encoder *encoder) | |
4715 | { | |
4716 | int i; | |
4717 | ||
4718 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
4719 | if (connector->encoder_ids[i] == 0) { | |
4720 | connector->encoder_ids[i] = encoder->base.id; | |
4721 | return 0; | |
4722 | } | |
4723 | } | |
4724 | return -ENOMEM; | |
4725 | } | |
4726 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); | |
4727 | ||
c8e32cc1 DV |
4728 | /** |
4729 | * drm_mode_crtc_set_gamma_size - set the gamma table size | |
4730 | * @crtc: CRTC to set the gamma table size for | |
4731 | * @gamma_size: size of the gamma table | |
4732 | * | |
4733 | * Drivers which support gamma tables should set this to the supported gamma | |
4734 | * table size when initializing the CRTC. Currently the drm core only supports a | |
4735 | * fixed gamma table size. | |
4736 | * | |
4737 | * Returns: | |
1a498633 | 4738 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4739 | */ |
4cae5b84 | 4740 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
c8e32cc1 | 4741 | int gamma_size) |
f453ba04 DA |
4742 | { |
4743 | crtc->gamma_size = gamma_size; | |
4744 | ||
bd3f0ff9 TR |
4745 | crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3, |
4746 | GFP_KERNEL); | |
f453ba04 DA |
4747 | if (!crtc->gamma_store) { |
4748 | crtc->gamma_size = 0; | |
4cae5b84 | 4749 | return -ENOMEM; |
f453ba04 DA |
4750 | } |
4751 | ||
4cae5b84 | 4752 | return 0; |
f453ba04 DA |
4753 | } |
4754 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); | |
4755 | ||
c8e32cc1 DV |
4756 | /** |
4757 | * drm_mode_gamma_set_ioctl - set the gamma table | |
4758 | * @dev: DRM device | |
4759 | * @data: ioctl data | |
4760 | * @file_priv: DRM file info | |
4761 | * | |
4762 | * Set the gamma table of a CRTC to the one passed in by the user. Userspace can | |
4763 | * inquire the required gamma table size through drm_mode_gamma_get_ioctl. | |
4764 | * | |
4765 | * Called by the user via ioctl. | |
4766 | * | |
4767 | * Returns: | |
1a498633 | 4768 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4769 | */ |
f453ba04 DA |
4770 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
4771 | void *data, struct drm_file *file_priv) | |
4772 | { | |
4773 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
4774 | struct drm_crtc *crtc; |
4775 | void *r_base, *g_base, *b_base; | |
4776 | int size; | |
4777 | int ret = 0; | |
4778 | ||
fb3b06c8 DA |
4779 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4780 | return -EINVAL; | |
4781 | ||
84849903 | 4782 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4783 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
4784 | if (!crtc) { | |
f27657f2 | 4785 | ret = -ENOENT; |
f453ba04 DA |
4786 | goto out; |
4787 | } | |
f453ba04 | 4788 | |
ebe0f244 LP |
4789 | if (crtc->funcs->gamma_set == NULL) { |
4790 | ret = -ENOSYS; | |
4791 | goto out; | |
4792 | } | |
4793 | ||
f453ba04 DA |
4794 | /* memcpy into gamma store */ |
4795 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
4796 | ret = -EINVAL; | |
4797 | goto out; | |
4798 | } | |
4799 | ||
4800 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
4801 | r_base = crtc->gamma_store; | |
4802 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { | |
4803 | ret = -EFAULT; | |
4804 | goto out; | |
4805 | } | |
4806 | ||
4807 | g_base = r_base + size; | |
4808 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { | |
4809 | ret = -EFAULT; | |
4810 | goto out; | |
4811 | } | |
4812 | ||
4813 | b_base = g_base + size; | |
4814 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { | |
4815 | ret = -EFAULT; | |
4816 | goto out; | |
4817 | } | |
4818 | ||
7203425a | 4819 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
f453ba04 DA |
4820 | |
4821 | out: | |
84849903 | 4822 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4823 | return ret; |
4824 | ||
4825 | } | |
4826 | ||
c8e32cc1 DV |
4827 | /** |
4828 | * drm_mode_gamma_get_ioctl - get the gamma table | |
4829 | * @dev: DRM device | |
4830 | * @data: ioctl data | |
4831 | * @file_priv: DRM file info | |
4832 | * | |
4833 | * Copy the current gamma table into the storage provided. This also provides | |
4834 | * the gamma table size the driver expects, which can be used to size the | |
4835 | * allocated storage. | |
4836 | * | |
4837 | * Called by the user via ioctl. | |
4838 | * | |
4839 | * Returns: | |
1a498633 | 4840 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4841 | */ |
f453ba04 DA |
4842 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
4843 | void *data, struct drm_file *file_priv) | |
4844 | { | |
4845 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
4846 | struct drm_crtc *crtc; |
4847 | void *r_base, *g_base, *b_base; | |
4848 | int size; | |
4849 | int ret = 0; | |
4850 | ||
fb3b06c8 DA |
4851 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4852 | return -EINVAL; | |
4853 | ||
84849903 | 4854 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4855 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
4856 | if (!crtc) { | |
f27657f2 | 4857 | ret = -ENOENT; |
f453ba04 DA |
4858 | goto out; |
4859 | } | |
f453ba04 DA |
4860 | |
4861 | /* memcpy into gamma store */ | |
4862 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
4863 | ret = -EINVAL; | |
4864 | goto out; | |
4865 | } | |
4866 | ||
4867 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
4868 | r_base = crtc->gamma_store; | |
4869 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { | |
4870 | ret = -EFAULT; | |
4871 | goto out; | |
4872 | } | |
4873 | ||
4874 | g_base = r_base + size; | |
4875 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { | |
4876 | ret = -EFAULT; | |
4877 | goto out; | |
4878 | } | |
4879 | ||
4880 | b_base = g_base + size; | |
4881 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { | |
4882 | ret = -EFAULT; | |
4883 | goto out; | |
4884 | } | |
4885 | out: | |
84849903 | 4886 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4887 | return ret; |
4888 | } | |
d91d8a3f | 4889 | |
c8e32cc1 DV |
4890 | /** |
4891 | * drm_mode_page_flip_ioctl - schedule an asynchronous fb update | |
4892 | * @dev: DRM device | |
4893 | * @data: ioctl data | |
4894 | * @file_priv: DRM file info | |
4895 | * | |
4896 | * This schedules an asynchronous update on a given CRTC, called page flip. | |
4897 | * Optionally a drm event is generated to signal the completion of the event. | |
4898 | * Generic drivers cannot assume that a pageflip with changed framebuffer | |
4899 | * properties (including driver specific metadata like tiling layout) will work, | |
4900 | * but some drivers support e.g. pixel format changes through the pageflip | |
4901 | * ioctl. | |
4902 | * | |
4903 | * Called by the user via ioctl. | |
4904 | * | |
4905 | * Returns: | |
1a498633 | 4906 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4907 | */ |
d91d8a3f KH |
4908 | int drm_mode_page_flip_ioctl(struct drm_device *dev, |
4909 | void *data, struct drm_file *file_priv) | |
4910 | { | |
4911 | struct drm_mode_crtc_page_flip *page_flip = data; | |
d91d8a3f | 4912 | struct drm_crtc *crtc; |
3d30a59b | 4913 | struct drm_framebuffer *fb = NULL; |
d91d8a3f KH |
4914 | struct drm_pending_vblank_event *e = NULL; |
4915 | unsigned long flags; | |
4916 | int ret = -EINVAL; | |
4917 | ||
4918 | if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || | |
4919 | page_flip->reserved != 0) | |
4920 | return -EINVAL; | |
4921 | ||
62f2104f KP |
4922 | if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) |
4923 | return -EINVAL; | |
4924 | ||
a2b34e22 RC |
4925 | crtc = drm_crtc_find(dev, page_flip->crtc_id); |
4926 | if (!crtc) | |
f27657f2 | 4927 | return -ENOENT; |
d91d8a3f | 4928 | |
4d02e2de | 4929 | drm_modeset_lock_crtc(crtc, crtc->primary); |
f4510a27 | 4930 | if (crtc->primary->fb == NULL) { |
90c1efdd CW |
4931 | /* The framebuffer is currently unbound, presumably |
4932 | * due to a hotplug event, that userspace has not | |
4933 | * yet discovered. | |
4934 | */ | |
4935 | ret = -EBUSY; | |
4936 | goto out; | |
4937 | } | |
4938 | ||
d91d8a3f KH |
4939 | if (crtc->funcs->page_flip == NULL) |
4940 | goto out; | |
4941 | ||
786b99ed | 4942 | fb = drm_framebuffer_lookup(dev, page_flip->fb_id); |
37c4e705 VS |
4943 | if (!fb) { |
4944 | ret = -ENOENT; | |
d91d8a3f | 4945 | goto out; |
37c4e705 | 4946 | } |
d91d8a3f | 4947 | |
c11e9283 DL |
4948 | ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); |
4949 | if (ret) | |
5f61bb42 | 4950 | goto out; |
5f61bb42 | 4951 | |
f4510a27 | 4952 | if (crtc->primary->fb->pixel_format != fb->pixel_format) { |
909d9cda LP |
4953 | DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); |
4954 | ret = -EINVAL; | |
4955 | goto out; | |
4956 | } | |
4957 | ||
d91d8a3f KH |
4958 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
4959 | ret = -ENOMEM; | |
4960 | spin_lock_irqsave(&dev->event_lock, flags); | |
f76511b9 | 4961 | if (file_priv->event_space < sizeof(e->event)) { |
d91d8a3f KH |
4962 | spin_unlock_irqrestore(&dev->event_lock, flags); |
4963 | goto out; | |
4964 | } | |
f76511b9 | 4965 | file_priv->event_space -= sizeof(e->event); |
d91d8a3f KH |
4966 | spin_unlock_irqrestore(&dev->event_lock, flags); |
4967 | ||
f76511b9 | 4968 | e = kzalloc(sizeof(*e), GFP_KERNEL); |
d91d8a3f KH |
4969 | if (e == NULL) { |
4970 | spin_lock_irqsave(&dev->event_lock, flags); | |
f76511b9 | 4971 | file_priv->event_space += sizeof(e->event); |
d91d8a3f KH |
4972 | spin_unlock_irqrestore(&dev->event_lock, flags); |
4973 | goto out; | |
4974 | } | |
4975 | ||
7bd4d7be | 4976 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; |
f76511b9 | 4977 | e->event.base.length = sizeof(e->event); |
d91d8a3f KH |
4978 | e->event.user_data = page_flip->user_data; |
4979 | e->base.event = &e->event.base; | |
4980 | e->base.file_priv = file_priv; | |
4981 | e->base.destroy = | |
4982 | (void (*) (struct drm_pending_event *)) kfree; | |
4983 | } | |
4984 | ||
3d30a59b | 4985 | crtc->primary->old_fb = crtc->primary->fb; |
ed8d1975 | 4986 | ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); |
d91d8a3f | 4987 | if (ret) { |
aef6a7ee JS |
4988 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
4989 | spin_lock_irqsave(&dev->event_lock, flags); | |
f76511b9 | 4990 | file_priv->event_space += sizeof(e->event); |
aef6a7ee JS |
4991 | spin_unlock_irqrestore(&dev->event_lock, flags); |
4992 | kfree(e); | |
4993 | } | |
b0d12325 | 4994 | /* Keep the old fb, don't unref it. */ |
3d30a59b | 4995 | crtc->primary->old_fb = NULL; |
b0d12325 | 4996 | } else { |
8cf1e981 TR |
4997 | /* |
4998 | * Warn if the driver hasn't properly updated the crtc->fb | |
4999 | * field to reflect that the new framebuffer is now used. | |
5000 | * Failing to do so will screw with the reference counting | |
5001 | * on framebuffers. | |
5002 | */ | |
f4510a27 | 5003 | WARN_ON(crtc->primary->fb != fb); |
b0d12325 DV |
5004 | /* Unref only the old framebuffer. */ |
5005 | fb = NULL; | |
d91d8a3f KH |
5006 | } |
5007 | ||
5008 | out: | |
b0d12325 DV |
5009 | if (fb) |
5010 | drm_framebuffer_unreference(fb); | |
3d30a59b DV |
5011 | if (crtc->primary->old_fb) |
5012 | drm_framebuffer_unreference(crtc->primary->old_fb); | |
5013 | crtc->primary->old_fb = NULL; | |
d059f652 | 5014 | drm_modeset_unlock_crtc(crtc); |
b4d5e7d1 | 5015 | |
d91d8a3f KH |
5016 | return ret; |
5017 | } | |
eb033556 | 5018 | |
c8e32cc1 DV |
5019 | /** |
5020 | * drm_mode_config_reset - call ->reset callbacks | |
5021 | * @dev: drm device | |
5022 | * | |
5023 | * This functions calls all the crtc's, encoder's and connector's ->reset | |
5024 | * callback. Drivers can use this in e.g. their driver load or resume code to | |
5025 | * reset hardware and software state. | |
5026 | */ | |
eb033556 CW |
5027 | void drm_mode_config_reset(struct drm_device *dev) |
5028 | { | |
5029 | struct drm_crtc *crtc; | |
2a0d7cfd | 5030 | struct drm_plane *plane; |
eb033556 CW |
5031 | struct drm_encoder *encoder; |
5032 | struct drm_connector *connector; | |
5033 | ||
2a0d7cfd DV |
5034 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) |
5035 | if (plane->funcs->reset) | |
5036 | plane->funcs->reset(plane); | |
5037 | ||
eb033556 CW |
5038 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) |
5039 | if (crtc->funcs->reset) | |
5040 | crtc->funcs->reset(crtc); | |
5041 | ||
5042 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
5043 | if (encoder->funcs->reset) | |
5044 | encoder->funcs->reset(encoder); | |
5045 | ||
5e2cb2f6 DV |
5046 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
5047 | connector->status = connector_status_unknown; | |
5048 | ||
eb033556 CW |
5049 | if (connector->funcs->reset) |
5050 | connector->funcs->reset(connector); | |
5e2cb2f6 | 5051 | } |
eb033556 CW |
5052 | } |
5053 | EXPORT_SYMBOL(drm_mode_config_reset); | |
ff72145b | 5054 | |
c8e32cc1 DV |
5055 | /** |
5056 | * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer | |
5057 | * @dev: DRM device | |
5058 | * @data: ioctl data | |
5059 | * @file_priv: DRM file info | |
5060 | * | |
5061 | * This creates a new dumb buffer in the driver's backing storage manager (GEM, | |
5062 | * TTM or something else entirely) and returns the resulting buffer handle. This | |
5063 | * handle can then be wrapped up into a framebuffer modeset object. | |
5064 | * | |
5065 | * Note that userspace is not allowed to use such objects for render | |
5066 | * acceleration - drivers must create their own private ioctls for such a use | |
5067 | * case. | |
5068 | * | |
5069 | * Called by the user via ioctl. | |
5070 | * | |
5071 | * Returns: | |
1a498633 | 5072 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5073 | */ |
ff72145b DA |
5074 | int drm_mode_create_dumb_ioctl(struct drm_device *dev, |
5075 | void *data, struct drm_file *file_priv) | |
5076 | { | |
5077 | struct drm_mode_create_dumb *args = data; | |
b28cd41f | 5078 | u32 cpp, stride, size; |
ff72145b DA |
5079 | |
5080 | if (!dev->driver->dumb_create) | |
5081 | return -ENOSYS; | |
b28cd41f DH |
5082 | if (!args->width || !args->height || !args->bpp) |
5083 | return -EINVAL; | |
5084 | ||
5085 | /* overflow checks for 32bit size calculations */ | |
00e72089 | 5086 | /* NOTE: DIV_ROUND_UP() can overflow */ |
b28cd41f | 5087 | cpp = DIV_ROUND_UP(args->bpp, 8); |
00e72089 | 5088 | if (!cpp || cpp > 0xffffffffU / args->width) |
b28cd41f DH |
5089 | return -EINVAL; |
5090 | stride = cpp * args->width; | |
5091 | if (args->height > 0xffffffffU / stride) | |
5092 | return -EINVAL; | |
5093 | ||
5094 | /* test for wrap-around */ | |
5095 | size = args->height * stride; | |
5096 | if (PAGE_ALIGN(size) == 0) | |
5097 | return -EINVAL; | |
5098 | ||
f6085952 TR |
5099 | /* |
5100 | * handle, pitch and size are output parameters. Zero them out to | |
5101 | * prevent drivers from accidentally using uninitialized data. Since | |
5102 | * not all existing userspace is clearing these fields properly we | |
5103 | * cannot reject IOCTL with garbage in them. | |
5104 | */ | |
5105 | args->handle = 0; | |
5106 | args->pitch = 0; | |
5107 | args->size = 0; | |
5108 | ||
ff72145b DA |
5109 | return dev->driver->dumb_create(file_priv, dev, args); |
5110 | } | |
5111 | ||
c8e32cc1 DV |
5112 | /** |
5113 | * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer | |
5114 | * @dev: DRM device | |
5115 | * @data: ioctl data | |
5116 | * @file_priv: DRM file info | |
5117 | * | |
5118 | * Allocate an offset in the drm device node's address space to be able to | |
5119 | * memory map a dumb buffer. | |
5120 | * | |
5121 | * Called by the user via ioctl. | |
5122 | * | |
5123 | * Returns: | |
1a498633 | 5124 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5125 | */ |
ff72145b DA |
5126 | int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, |
5127 | void *data, struct drm_file *file_priv) | |
5128 | { | |
5129 | struct drm_mode_map_dumb *args = data; | |
5130 | ||
5131 | /* call driver ioctl to get mmap offset */ | |
5132 | if (!dev->driver->dumb_map_offset) | |
5133 | return -ENOSYS; | |
5134 | ||
5135 | return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); | |
5136 | } | |
5137 | ||
c8e32cc1 DV |
5138 | /** |
5139 | * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer | |
5140 | * @dev: DRM device | |
5141 | * @data: ioctl data | |
5142 | * @file_priv: DRM file info | |
5143 | * | |
5144 | * This destroys the userspace handle for the given dumb backing storage buffer. | |
5145 | * Since buffer objects must be reference counted in the kernel a buffer object | |
5146 | * won't be immediately freed if a framebuffer modeset object still uses it. | |
5147 | * | |
5148 | * Called by the user via ioctl. | |
5149 | * | |
5150 | * Returns: | |
1a498633 | 5151 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5152 | */ |
ff72145b DA |
5153 | int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, |
5154 | void *data, struct drm_file *file_priv) | |
5155 | { | |
5156 | struct drm_mode_destroy_dumb *args = data; | |
5157 | ||
5158 | if (!dev->driver->dumb_destroy) | |
5159 | return -ENOSYS; | |
5160 | ||
5161 | return dev->driver->dumb_destroy(file_priv, dev, args->handle); | |
5162 | } | |
248dbc23 | 5163 | |
c8e32cc1 DV |
5164 | /** |
5165 | * drm_fb_get_bpp_depth - get the bpp/depth values for format | |
5166 | * @format: pixel format (DRM_FORMAT_*) | |
5167 | * @depth: storage for the depth value | |
5168 | * @bpp: storage for the bpp value | |
5169 | * | |
5170 | * This only supports RGB formats here for compat with code that doesn't use | |
5171 | * pixel formats directly yet. | |
248dbc23 DA |
5172 | */ |
5173 | void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, | |
5174 | int *bpp) | |
5175 | { | |
5176 | switch (format) { | |
c51a6bc5 | 5177 | case DRM_FORMAT_C8: |
04b3924d VS |
5178 | case DRM_FORMAT_RGB332: |
5179 | case DRM_FORMAT_BGR233: | |
248dbc23 DA |
5180 | *depth = 8; |
5181 | *bpp = 8; | |
5182 | break; | |
04b3924d VS |
5183 | case DRM_FORMAT_XRGB1555: |
5184 | case DRM_FORMAT_XBGR1555: | |
5185 | case DRM_FORMAT_RGBX5551: | |
5186 | case DRM_FORMAT_BGRX5551: | |
5187 | case DRM_FORMAT_ARGB1555: | |
5188 | case DRM_FORMAT_ABGR1555: | |
5189 | case DRM_FORMAT_RGBA5551: | |
5190 | case DRM_FORMAT_BGRA5551: | |
248dbc23 DA |
5191 | *depth = 15; |
5192 | *bpp = 16; | |
5193 | break; | |
04b3924d VS |
5194 | case DRM_FORMAT_RGB565: |
5195 | case DRM_FORMAT_BGR565: | |
248dbc23 DA |
5196 | *depth = 16; |
5197 | *bpp = 16; | |
5198 | break; | |
04b3924d VS |
5199 | case DRM_FORMAT_RGB888: |
5200 | case DRM_FORMAT_BGR888: | |
5201 | *depth = 24; | |
5202 | *bpp = 24; | |
5203 | break; | |
5204 | case DRM_FORMAT_XRGB8888: | |
5205 | case DRM_FORMAT_XBGR8888: | |
5206 | case DRM_FORMAT_RGBX8888: | |
5207 | case DRM_FORMAT_BGRX8888: | |
248dbc23 DA |
5208 | *depth = 24; |
5209 | *bpp = 32; | |
5210 | break; | |
04b3924d VS |
5211 | case DRM_FORMAT_XRGB2101010: |
5212 | case DRM_FORMAT_XBGR2101010: | |
5213 | case DRM_FORMAT_RGBX1010102: | |
5214 | case DRM_FORMAT_BGRX1010102: | |
5215 | case DRM_FORMAT_ARGB2101010: | |
5216 | case DRM_FORMAT_ABGR2101010: | |
5217 | case DRM_FORMAT_RGBA1010102: | |
5218 | case DRM_FORMAT_BGRA1010102: | |
248dbc23 DA |
5219 | *depth = 30; |
5220 | *bpp = 32; | |
5221 | break; | |
04b3924d VS |
5222 | case DRM_FORMAT_ARGB8888: |
5223 | case DRM_FORMAT_ABGR8888: | |
5224 | case DRM_FORMAT_RGBA8888: | |
5225 | case DRM_FORMAT_BGRA8888: | |
248dbc23 DA |
5226 | *depth = 32; |
5227 | *bpp = 32; | |
5228 | break; | |
5229 | default: | |
23c453a4 VS |
5230 | DRM_DEBUG_KMS("unsupported pixel format %s\n", |
5231 | drm_get_format_name(format)); | |
248dbc23 DA |
5232 | *depth = 0; |
5233 | *bpp = 0; | |
5234 | break; | |
5235 | } | |
5236 | } | |
5237 | EXPORT_SYMBOL(drm_fb_get_bpp_depth); | |
141670e9 VS |
5238 | |
5239 | /** | |
5240 | * drm_format_num_planes - get the number of planes for format | |
5241 | * @format: pixel format (DRM_FORMAT_*) | |
5242 | * | |
c8e32cc1 | 5243 | * Returns: |
141670e9 VS |
5244 | * The number of planes used by the specified pixel format. |
5245 | */ | |
5246 | int drm_format_num_planes(uint32_t format) | |
5247 | { | |
5248 | switch (format) { | |
5249 | case DRM_FORMAT_YUV410: | |
5250 | case DRM_FORMAT_YVU410: | |
5251 | case DRM_FORMAT_YUV411: | |
5252 | case DRM_FORMAT_YVU411: | |
5253 | case DRM_FORMAT_YUV420: | |
5254 | case DRM_FORMAT_YVU420: | |
5255 | case DRM_FORMAT_YUV422: | |
5256 | case DRM_FORMAT_YVU422: | |
5257 | case DRM_FORMAT_YUV444: | |
5258 | case DRM_FORMAT_YVU444: | |
5259 | return 3; | |
5260 | case DRM_FORMAT_NV12: | |
5261 | case DRM_FORMAT_NV21: | |
5262 | case DRM_FORMAT_NV16: | |
5263 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
5264 | case DRM_FORMAT_NV24: |
5265 | case DRM_FORMAT_NV42: | |
141670e9 VS |
5266 | return 2; |
5267 | default: | |
5268 | return 1; | |
5269 | } | |
5270 | } | |
5271 | EXPORT_SYMBOL(drm_format_num_planes); | |
5a86bd55 VS |
5272 | |
5273 | /** | |
5274 | * drm_format_plane_cpp - determine the bytes per pixel value | |
5275 | * @format: pixel format (DRM_FORMAT_*) | |
5276 | * @plane: plane index | |
5277 | * | |
c8e32cc1 | 5278 | * Returns: |
5a86bd55 VS |
5279 | * The bytes per pixel value for the specified plane. |
5280 | */ | |
5281 | int drm_format_plane_cpp(uint32_t format, int plane) | |
5282 | { | |
5283 | unsigned int depth; | |
5284 | int bpp; | |
5285 | ||
5286 | if (plane >= drm_format_num_planes(format)) | |
5287 | return 0; | |
5288 | ||
5289 | switch (format) { | |
5290 | case DRM_FORMAT_YUYV: | |
5291 | case DRM_FORMAT_YVYU: | |
5292 | case DRM_FORMAT_UYVY: | |
5293 | case DRM_FORMAT_VYUY: | |
5294 | return 2; | |
5295 | case DRM_FORMAT_NV12: | |
5296 | case DRM_FORMAT_NV21: | |
5297 | case DRM_FORMAT_NV16: | |
5298 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
5299 | case DRM_FORMAT_NV24: |
5300 | case DRM_FORMAT_NV42: | |
5a86bd55 VS |
5301 | return plane ? 2 : 1; |
5302 | case DRM_FORMAT_YUV410: | |
5303 | case DRM_FORMAT_YVU410: | |
5304 | case DRM_FORMAT_YUV411: | |
5305 | case DRM_FORMAT_YVU411: | |
5306 | case DRM_FORMAT_YUV420: | |
5307 | case DRM_FORMAT_YVU420: | |
5308 | case DRM_FORMAT_YUV422: | |
5309 | case DRM_FORMAT_YVU422: | |
5310 | case DRM_FORMAT_YUV444: | |
5311 | case DRM_FORMAT_YVU444: | |
5312 | return 1; | |
5313 | default: | |
5314 | drm_fb_get_bpp_depth(format, &depth, &bpp); | |
5315 | return bpp >> 3; | |
5316 | } | |
5317 | } | |
5318 | EXPORT_SYMBOL(drm_format_plane_cpp); | |
01b68b04 VS |
5319 | |
5320 | /** | |
5321 | * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor | |
5322 | * @format: pixel format (DRM_FORMAT_*) | |
5323 | * | |
c8e32cc1 | 5324 | * Returns: |
01b68b04 VS |
5325 | * The horizontal chroma subsampling factor for the |
5326 | * specified pixel format. | |
5327 | */ | |
5328 | int drm_format_horz_chroma_subsampling(uint32_t format) | |
5329 | { | |
5330 | switch (format) { | |
5331 | case DRM_FORMAT_YUV411: | |
5332 | case DRM_FORMAT_YVU411: | |
5333 | case DRM_FORMAT_YUV410: | |
5334 | case DRM_FORMAT_YVU410: | |
5335 | return 4; | |
5336 | case DRM_FORMAT_YUYV: | |
5337 | case DRM_FORMAT_YVYU: | |
5338 | case DRM_FORMAT_UYVY: | |
5339 | case DRM_FORMAT_VYUY: | |
5340 | case DRM_FORMAT_NV12: | |
5341 | case DRM_FORMAT_NV21: | |
5342 | case DRM_FORMAT_NV16: | |
5343 | case DRM_FORMAT_NV61: | |
5344 | case DRM_FORMAT_YUV422: | |
5345 | case DRM_FORMAT_YVU422: | |
5346 | case DRM_FORMAT_YUV420: | |
5347 | case DRM_FORMAT_YVU420: | |
5348 | return 2; | |
5349 | default: | |
5350 | return 1; | |
5351 | } | |
5352 | } | |
5353 | EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); | |
5354 | ||
5355 | /** | |
5356 | * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor | |
5357 | * @format: pixel format (DRM_FORMAT_*) | |
5358 | * | |
c8e32cc1 | 5359 | * Returns: |
01b68b04 VS |
5360 | * The vertical chroma subsampling factor for the |
5361 | * specified pixel format. | |
5362 | */ | |
5363 | int drm_format_vert_chroma_subsampling(uint32_t format) | |
5364 | { | |
5365 | switch (format) { | |
5366 | case DRM_FORMAT_YUV410: | |
5367 | case DRM_FORMAT_YVU410: | |
5368 | return 4; | |
5369 | case DRM_FORMAT_YUV420: | |
5370 | case DRM_FORMAT_YVU420: | |
5371 | case DRM_FORMAT_NV12: | |
5372 | case DRM_FORMAT_NV21: | |
5373 | return 2; | |
5374 | default: | |
5375 | return 1; | |
5376 | } | |
5377 | } | |
5378 | EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); | |
87d24fc3 | 5379 | |
3c9855f6 VS |
5380 | /** |
5381 | * drm_rotation_simplify() - Try to simplify the rotation | |
5382 | * @rotation: Rotation to be simplified | |
5383 | * @supported_rotations: Supported rotations | |
5384 | * | |
5385 | * Attempt to simplify the rotation to a form that is supported. | |
5386 | * Eg. if the hardware supports everything except DRM_REFLECT_X | |
5387 | * one could call this function like this: | |
5388 | * | |
5389 | * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) | | |
5390 | * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) | | |
5391 | * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y)); | |
5392 | * | |
5393 | * to eliminate the DRM_ROTATE_X flag. Depending on what kind of | |
5394 | * transforms the hardware supports, this function may not | |
5395 | * be able to produce a supported transform, so the caller should | |
5396 | * check the result afterwards. | |
5397 | */ | |
5398 | unsigned int drm_rotation_simplify(unsigned int rotation, | |
5399 | unsigned int supported_rotations) | |
5400 | { | |
5401 | if (rotation & ~supported_rotations) { | |
5402 | rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y); | |
5403 | rotation = (rotation & ~0xf) | BIT((ffs(rotation & 0xf) + 1) % 4); | |
5404 | } | |
5405 | ||
5406 | return rotation; | |
5407 | } | |
5408 | EXPORT_SYMBOL(drm_rotation_simplify); | |
5409 | ||
87d24fc3 LP |
5410 | /** |
5411 | * drm_mode_config_init - initialize DRM mode_configuration structure | |
5412 | * @dev: DRM device | |
5413 | * | |
5414 | * Initialize @dev's mode_config structure, used for tracking the graphics | |
5415 | * configuration of @dev. | |
5416 | * | |
5417 | * Since this initializes the modeset locks, no locking is possible. Which is no | |
5418 | * problem, since this should happen single threaded at init time. It is the | |
5419 | * driver's problem to ensure this guarantee. | |
5420 | * | |
5421 | */ | |
5422 | void drm_mode_config_init(struct drm_device *dev) | |
5423 | { | |
5424 | mutex_init(&dev->mode_config.mutex); | |
51fd371b | 5425 | drm_modeset_lock_init(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
5426 | mutex_init(&dev->mode_config.idr_mutex); |
5427 | mutex_init(&dev->mode_config.fb_lock); | |
5428 | INIT_LIST_HEAD(&dev->mode_config.fb_list); | |
5429 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); | |
5430 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
5431 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); | |
5432 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
5433 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
5434 | INIT_LIST_HEAD(&dev->mode_config.plane_list); | |
5435 | idr_init(&dev->mode_config.crtc_idr); | |
138f9ebb | 5436 | idr_init(&dev->mode_config.tile_idr); |
87d24fc3 LP |
5437 | |
5438 | drm_modeset_lock_all(dev); | |
6b4959f4 | 5439 | drm_mode_create_standard_properties(dev); |
87d24fc3 LP |
5440 | drm_modeset_unlock_all(dev); |
5441 | ||
5442 | /* Just to be sure */ | |
5443 | dev->mode_config.num_fb = 0; | |
5444 | dev->mode_config.num_connector = 0; | |
5445 | dev->mode_config.num_crtc = 0; | |
5446 | dev->mode_config.num_encoder = 0; | |
e27dde3e MR |
5447 | dev->mode_config.num_overlay_plane = 0; |
5448 | dev->mode_config.num_total_plane = 0; | |
87d24fc3 LP |
5449 | } |
5450 | EXPORT_SYMBOL(drm_mode_config_init); | |
5451 | ||
5452 | /** | |
5453 | * drm_mode_config_cleanup - free up DRM mode_config info | |
5454 | * @dev: DRM device | |
5455 | * | |
5456 | * Free up all the connectors and CRTCs associated with this DRM device, then | |
5457 | * free up the framebuffers and associated buffer objects. | |
5458 | * | |
5459 | * Note that since this /should/ happen single-threaded at driver/device | |
5460 | * teardown time, no locking is required. It's the driver's job to ensure that | |
5461 | * this guarantee actually holds true. | |
5462 | * | |
5463 | * FIXME: cleanup any dangling user buffer objects too | |
5464 | */ | |
5465 | void drm_mode_config_cleanup(struct drm_device *dev) | |
5466 | { | |
5467 | struct drm_connector *connector, *ot; | |
5468 | struct drm_crtc *crtc, *ct; | |
5469 | struct drm_encoder *encoder, *enct; | |
5470 | struct drm_framebuffer *fb, *fbt; | |
5471 | struct drm_property *property, *pt; | |
5472 | struct drm_property_blob *blob, *bt; | |
5473 | struct drm_plane *plane, *plt; | |
5474 | ||
5475 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
5476 | head) { | |
5477 | encoder->funcs->destroy(encoder); | |
5478 | } | |
5479 | ||
5480 | list_for_each_entry_safe(connector, ot, | |
5481 | &dev->mode_config.connector_list, head) { | |
5482 | connector->funcs->destroy(connector); | |
5483 | } | |
5484 | ||
5485 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
5486 | head) { | |
5487 | drm_property_destroy(dev, property); | |
5488 | } | |
5489 | ||
5490 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, | |
5491 | head) { | |
5492 | drm_property_destroy_blob(dev, blob); | |
5493 | } | |
5494 | ||
5495 | /* | |
5496 | * Single-threaded teardown context, so it's not required to grab the | |
5497 | * fb_lock to protect against concurrent fb_list access. Contrary, it | |
5498 | * would actually deadlock with the drm_framebuffer_cleanup function. | |
5499 | * | |
5500 | * Also, if there are any framebuffers left, that's a driver leak now, | |
5501 | * so politely WARN about this. | |
5502 | */ | |
5503 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); | |
5504 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { | |
5505 | drm_framebuffer_remove(fb); | |
5506 | } | |
5507 | ||
5508 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, | |
5509 | head) { | |
5510 | plane->funcs->destroy(plane); | |
5511 | } | |
5512 | ||
5513 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { | |
5514 | crtc->funcs->destroy(crtc); | |
5515 | } | |
5516 | ||
138f9ebb | 5517 | idr_destroy(&dev->mode_config.tile_idr); |
87d24fc3 | 5518 | idr_destroy(&dev->mode_config.crtc_idr); |
51fd371b | 5519 | drm_modeset_lock_fini(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
5520 | } |
5521 | EXPORT_SYMBOL(drm_mode_config_cleanup); | |
c1df5f3c VS |
5522 | |
5523 | struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, | |
5524 | unsigned int supported_rotations) | |
5525 | { | |
5526 | static const struct drm_prop_enum_list props[] = { | |
5527 | { DRM_ROTATE_0, "rotate-0" }, | |
5528 | { DRM_ROTATE_90, "rotate-90" }, | |
5529 | { DRM_ROTATE_180, "rotate-180" }, | |
5530 | { DRM_ROTATE_270, "rotate-270" }, | |
5531 | { DRM_REFLECT_X, "reflect-x" }, | |
5532 | { DRM_REFLECT_Y, "reflect-y" }, | |
5533 | }; | |
5534 | ||
5535 | return drm_property_create_bitmask(dev, 0, "rotation", | |
5536 | props, ARRAY_SIZE(props), | |
5537 | supported_rotations); | |
5538 | } | |
5539 | EXPORT_SYMBOL(drm_mode_create_rotation_property); | |
138f9ebb DA |
5540 | |
5541 | /** | |
5542 | * DOC: Tile group | |
5543 | * | |
5544 | * Tile groups are used to represent tiled monitors with a unique | |
5545 | * integer identifier. Tiled monitors using DisplayID v1.3 have | |
5546 | * a unique 8-byte handle, we store this in a tile group, so we | |
5547 | * have a common identifier for all tiles in a monitor group. | |
5548 | */ | |
5549 | static void drm_tile_group_free(struct kref *kref) | |
5550 | { | |
5551 | struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount); | |
5552 | struct drm_device *dev = tg->dev; | |
5553 | mutex_lock(&dev->mode_config.idr_mutex); | |
5554 | idr_remove(&dev->mode_config.tile_idr, tg->id); | |
5555 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5556 | kfree(tg); | |
5557 | } | |
5558 | ||
5559 | /** | |
5560 | * drm_mode_put_tile_group - drop a reference to a tile group. | |
5561 | * @dev: DRM device | |
5562 | * @tg: tile group to drop reference to. | |
5563 | * | |
5564 | * drop reference to tile group and free if 0. | |
5565 | */ | |
5566 | void drm_mode_put_tile_group(struct drm_device *dev, | |
5567 | struct drm_tile_group *tg) | |
5568 | { | |
5569 | kref_put(&tg->refcount, drm_tile_group_free); | |
5570 | } | |
5571 | ||
5572 | /** | |
5573 | * drm_mode_get_tile_group - get a reference to an existing tile group | |
5574 | * @dev: DRM device | |
5575 | * @topology: 8-bytes unique per monitor. | |
5576 | * | |
5577 | * Use the unique bytes to get a reference to an existing tile group. | |
5578 | * | |
5579 | * RETURNS: | |
5580 | * tile group or NULL if not found. | |
5581 | */ | |
5582 | struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, | |
5583 | char topology[8]) | |
5584 | { | |
5585 | struct drm_tile_group *tg; | |
5586 | int id; | |
5587 | mutex_lock(&dev->mode_config.idr_mutex); | |
5588 | idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) { | |
5589 | if (!memcmp(tg->group_data, topology, 8)) { | |
5590 | if (!kref_get_unless_zero(&tg->refcount)) | |
5591 | tg = NULL; | |
5592 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5593 | return tg; | |
5594 | } | |
5595 | } | |
5596 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5597 | return NULL; | |
5598 | } | |
5599 | ||
5600 | /** | |
5601 | * drm_mode_create_tile_group - create a tile group from a displayid description | |
5602 | * @dev: DRM device | |
5603 | * @topology: 8-bytes unique per monitor. | |
5604 | * | |
5605 | * Create a tile group for the unique monitor, and get a unique | |
5606 | * identifier for the tile group. | |
5607 | * | |
5608 | * RETURNS: | |
5609 | * new tile group or error. | |
5610 | */ | |
5611 | struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, | |
5612 | char topology[8]) | |
5613 | { | |
5614 | struct drm_tile_group *tg; | |
5615 | int ret; | |
5616 | ||
5617 | tg = kzalloc(sizeof(*tg), GFP_KERNEL); | |
5618 | if (!tg) | |
5619 | return ERR_PTR(-ENOMEM); | |
5620 | ||
5621 | kref_init(&tg->refcount); | |
5622 | memcpy(tg->group_data, topology, 8); | |
5623 | tg->dev = dev; | |
5624 | ||
5625 | mutex_lock(&dev->mode_config.idr_mutex); | |
5626 | ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL); | |
5627 | if (ret >= 0) { | |
5628 | tg->id = ret; | |
5629 | } else { | |
5630 | kfree(tg); | |
5631 | tg = ERR_PTR(ret); | |
5632 | } | |
5633 | ||
5634 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5635 | return tg; | |
5636 | } |