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f453ba04 DA |
1 | /* |
2 | * Copyright (c) 2006-2008 Intel Corporation | |
3 | * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> | |
4 | * Copyright (c) 2008 Red Hat Inc. | |
5 | * | |
6 | * DRM core CRTC related functions | |
7 | * | |
8 | * Permission to use, copy, modify, distribute, and sell this software and its | |
9 | * documentation for any purpose is hereby granted without fee, provided that | |
10 | * the above copyright notice appear in all copies and that both that copyright | |
11 | * notice and this permission notice appear in supporting documentation, and | |
12 | * that the name of the copyright holders not be used in advertising or | |
13 | * publicity pertaining to distribution of the software without specific, | |
14 | * written prior permission. The copyright holders make no representations | |
15 | * about the suitability of this software for any purpose. It is provided "as | |
16 | * is" without express or implied warranty. | |
17 | * | |
18 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
19 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
20 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
21 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
22 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
23 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
24 | * OF THIS SOFTWARE. | |
25 | * | |
26 | * Authors: | |
27 | * Keith Packard | |
28 | * Eric Anholt <eric@anholt.net> | |
29 | * Dave Airlie <airlied@linux.ie> | |
30 | * Jesse Barnes <jesse.barnes@intel.com> | |
31 | */ | |
6ba6d03e | 32 | #include <linux/ctype.h> |
f453ba04 | 33 | #include <linux/list.h> |
5a0e3ad6 | 34 | #include <linux/slab.h> |
2d1a8a48 | 35 | #include <linux/export.h> |
760285e7 DH |
36 | #include <drm/drmP.h> |
37 | #include <drm/drm_crtc.h> | |
38 | #include <drm/drm_edid.h> | |
39 | #include <drm/drm_fourcc.h> | |
51fd371b | 40 | #include <drm/drm_modeset_lock.h> |
88a48e29 | 41 | #include <drm/drm_atomic.h> |
f453ba04 | 42 | |
8bd441b2 | 43 | #include "drm_crtc_internal.h" |
67d0ec4e | 44 | #include "drm_internal.h" |
8bd441b2 | 45 | |
9a6f5130 CW |
46 | static struct drm_framebuffer * |
47 | internal_framebuffer_create(struct drm_device *dev, | |
1eb83451 | 48 | const struct drm_mode_fb_cmd2 *r, |
9a6f5130 | 49 | struct drm_file *file_priv); |
c394c2b0 | 50 | |
f453ba04 DA |
51 | /* Avoid boilerplate. I'm tired of typing. */ |
52 | #define DRM_ENUM_NAME_FN(fnname, list) \ | |
d20d3174 | 53 | const char *fnname(int val) \ |
f453ba04 DA |
54 | { \ |
55 | int i; \ | |
56 | for (i = 0; i < ARRAY_SIZE(list); i++) { \ | |
57 | if (list[i].type == val) \ | |
58 | return list[i].name; \ | |
59 | } \ | |
60 | return "(unknown)"; \ | |
61 | } | |
62 | ||
63 | /* | |
64 | * Global properties | |
65 | */ | |
4dfd909f TR |
66 | static const struct drm_prop_enum_list drm_dpms_enum_list[] = { |
67 | { DRM_MODE_DPMS_ON, "On" }, | |
f453ba04 DA |
68 | { DRM_MODE_DPMS_STANDBY, "Standby" }, |
69 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, | |
70 | { DRM_MODE_DPMS_OFF, "Off" } | |
71 | }; | |
72 | ||
73 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) | |
74 | ||
4dfd909f | 75 | static const struct drm_prop_enum_list drm_plane_type_enum_list[] = { |
9922ab5a RC |
76 | { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, |
77 | { DRM_PLANE_TYPE_PRIMARY, "Primary" }, | |
78 | { DRM_PLANE_TYPE_CURSOR, "Cursor" }, | |
79 | }; | |
80 | ||
f453ba04 DA |
81 | /* |
82 | * Optional properties | |
83 | */ | |
4dfd909f | 84 | static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = { |
53bd8389 JB |
85 | { DRM_MODE_SCALE_NONE, "None" }, |
86 | { DRM_MODE_SCALE_FULLSCREEN, "Full" }, | |
87 | { DRM_MODE_SCALE_CENTER, "Center" }, | |
88 | { DRM_MODE_SCALE_ASPECT, "Full aspect" }, | |
f453ba04 DA |
89 | }; |
90 | ||
ff587e45 VK |
91 | static const struct drm_prop_enum_list drm_aspect_ratio_enum_list[] = { |
92 | { DRM_MODE_PICTURE_ASPECT_NONE, "Automatic" }, | |
93 | { DRM_MODE_PICTURE_ASPECT_4_3, "4:3" }, | |
94 | { DRM_MODE_PICTURE_ASPECT_16_9, "16:9" }, | |
95 | }; | |
96 | ||
f453ba04 DA |
97 | /* |
98 | * Non-global properties, but "required" for certain connectors. | |
99 | */ | |
4dfd909f | 100 | static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = { |
f453ba04 DA |
101 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
102 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
103 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
104 | }; | |
105 | ||
106 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) | |
107 | ||
4dfd909f | 108 | static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = { |
f453ba04 DA |
109 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
110 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
111 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
112 | }; | |
113 | ||
114 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, | |
115 | drm_dvi_i_subconnector_enum_list) | |
116 | ||
4dfd909f | 117 | static const struct drm_prop_enum_list drm_tv_select_enum_list[] = { |
f453ba04 DA |
118 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
119 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
120 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
121 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 122 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
123 | }; |
124 | ||
125 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) | |
126 | ||
4dfd909f | 127 | static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = { |
f453ba04 DA |
128 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
129 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
130 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
131 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 132 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
133 | }; |
134 | ||
135 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, | |
136 | drm_tv_subconnector_enum_list) | |
137 | ||
d20d3174 | 138 | static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = { |
884840aa JB |
139 | { DRM_MODE_DIRTY_OFF, "Off" }, |
140 | { DRM_MODE_DIRTY_ON, "On" }, | |
141 | { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, | |
142 | }; | |
143 | ||
f453ba04 DA |
144 | struct drm_conn_prop_enum_list { |
145 | int type; | |
d20d3174 | 146 | const char *name; |
b21e3afe | 147 | struct ida ida; |
f453ba04 DA |
148 | }; |
149 | ||
150 | /* | |
151 | * Connector and encoder types. | |
152 | */ | |
4dfd909f TR |
153 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = { |
154 | { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, | |
b21e3afe IM |
155 | { DRM_MODE_CONNECTOR_VGA, "VGA" }, |
156 | { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, | |
157 | { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, | |
158 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, | |
159 | { DRM_MODE_CONNECTOR_Composite, "Composite" }, | |
160 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, | |
161 | { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, | |
162 | { DRM_MODE_CONNECTOR_Component, "Component" }, | |
163 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, | |
164 | { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, | |
165 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, | |
166 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, | |
167 | { DRM_MODE_CONNECTOR_TV, "TV" }, | |
168 | { DRM_MODE_CONNECTOR_eDP, "eDP" }, | |
169 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, | |
b8923273 | 170 | { DRM_MODE_CONNECTOR_DSI, "DSI" }, |
0b27c02a | 171 | { DRM_MODE_CONNECTOR_DPI, "DPI" }, |
f453ba04 DA |
172 | }; |
173 | ||
4dfd909f TR |
174 | static const struct drm_prop_enum_list drm_encoder_enum_list[] = { |
175 | { DRM_MODE_ENCODER_NONE, "None" }, | |
f453ba04 DA |
176 | { DRM_MODE_ENCODER_DAC, "DAC" }, |
177 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, | |
178 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, | |
179 | { DRM_MODE_ENCODER_TVDAC, "TV" }, | |
a7331e5c | 180 | { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, |
b8923273 | 181 | { DRM_MODE_ENCODER_DSI, "DSI" }, |
182407a6 | 182 | { DRM_MODE_ENCODER_DPMST, "DP MST" }, |
0b27c02a | 183 | { DRM_MODE_ENCODER_DPI, "DPI" }, |
f453ba04 DA |
184 | }; |
185 | ||
4dfd909f | 186 | static const struct drm_prop_enum_list drm_subpixel_enum_list[] = { |
ac1bb36c JB |
187 | { SubPixelUnknown, "Unknown" }, |
188 | { SubPixelHorizontalRGB, "Horizontal RGB" }, | |
189 | { SubPixelHorizontalBGR, "Horizontal BGR" }, | |
190 | { SubPixelVerticalRGB, "Vertical RGB" }, | |
191 | { SubPixelVerticalBGR, "Vertical BGR" }, | |
192 | { SubPixelNone, "None" }, | |
193 | }; | |
194 | ||
b21e3afe IM |
195 | void drm_connector_ida_init(void) |
196 | { | |
197 | int i; | |
198 | ||
199 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
200 | ida_init(&drm_connector_enum_list[i].ida); | |
201 | } | |
202 | ||
203 | void drm_connector_ida_destroy(void) | |
204 | { | |
205 | int i; | |
206 | ||
207 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
208 | ida_destroy(&drm_connector_enum_list[i].ida); | |
209 | } | |
210 | ||
c8e32cc1 DV |
211 | /** |
212 | * drm_get_connector_status_name - return a string for connector status | |
213 | * @status: connector status to compute name of | |
214 | * | |
215 | * In contrast to the other drm_get_*_name functions this one here returns a | |
216 | * const pointer and hence is threadsafe. | |
217 | */ | |
d20d3174 | 218 | const char *drm_get_connector_status_name(enum drm_connector_status status) |
f453ba04 DA |
219 | { |
220 | if (status == connector_status_connected) | |
221 | return "connected"; | |
222 | else if (status == connector_status_disconnected) | |
223 | return "disconnected"; | |
224 | else | |
225 | return "unknown"; | |
226 | } | |
ed7951dc | 227 | EXPORT_SYMBOL(drm_get_connector_status_name); |
f453ba04 | 228 | |
ac1bb36c JB |
229 | /** |
230 | * drm_get_subpixel_order_name - return a string for a given subpixel enum | |
231 | * @order: enum of subpixel_order | |
232 | * | |
233 | * Note you could abuse this and return something out of bounds, but that | |
234 | * would be a caller error. No unscrubbed user data should make it here. | |
235 | */ | |
236 | const char *drm_get_subpixel_order_name(enum subpixel_order order) | |
237 | { | |
238 | return drm_subpixel_enum_list[order].name; | |
239 | } | |
240 | EXPORT_SYMBOL(drm_get_subpixel_order_name); | |
241 | ||
2ee39452 DA |
242 | /* |
243 | * Internal function to assign a slot in the object idr and optionally | |
244 | * register the object into the idr. | |
245 | */ | |
246 | static int drm_mode_object_get_reg(struct drm_device *dev, | |
247 | struct drm_mode_object *obj, | |
248 | uint32_t obj_type, | |
d0f37cf6 DA |
249 | bool register_obj, |
250 | void (*obj_free_cb)(struct kref *kref)) | |
2ee39452 DA |
251 | { |
252 | int ret; | |
253 | ||
254 | mutex_lock(&dev->mode_config.idr_mutex); | |
255 | ret = idr_alloc(&dev->mode_config.crtc_idr, register_obj ? obj : NULL, 1, 0, GFP_KERNEL); | |
256 | if (ret >= 0) { | |
257 | /* | |
258 | * Set up the object linking under the protection of the idr | |
259 | * lock so that other users can't see inconsistent state. | |
260 | */ | |
261 | obj->id = ret; | |
262 | obj->type = obj_type; | |
d0f37cf6 DA |
263 | if (obj_free_cb) { |
264 | obj->free_cb = obj_free_cb; | |
265 | kref_init(&obj->refcount); | |
266 | } | |
2ee39452 DA |
267 | } |
268 | mutex_unlock(&dev->mode_config.idr_mutex); | |
269 | ||
270 | return ret < 0 ? ret : 0; | |
271 | } | |
272 | ||
f453ba04 | 273 | /** |
065a50ed | 274 | * drm_mode_object_get - allocate a new modeset identifier |
f453ba04 | 275 | * @dev: DRM device |
065a50ed DV |
276 | * @obj: object pointer, used to generate unique ID |
277 | * @obj_type: object type | |
f453ba04 | 278 | * |
f453ba04 | 279 | * Create a unique identifier based on @ptr in @dev's identifier space. Used |
c8e32cc1 DV |
280 | * for tracking modes, CRTCs and connectors. Note that despite the _get postfix |
281 | * modeset identifiers are _not_ reference counted. Hence don't use this for | |
282 | * reference counted modeset objects like framebuffers. | |
f453ba04 | 283 | * |
c8e32cc1 | 284 | * Returns: |
3c67d839 | 285 | * Zero on success, error code on failure. |
f453ba04 | 286 | */ |
8bd441b2 DV |
287 | int drm_mode_object_get(struct drm_device *dev, |
288 | struct drm_mode_object *obj, uint32_t obj_type) | |
f453ba04 | 289 | { |
d0f37cf6 | 290 | return drm_mode_object_get_reg(dev, obj, obj_type, true, NULL); |
2ee39452 | 291 | } |
f453ba04 | 292 | |
2ee39452 DA |
293 | static void drm_mode_object_register(struct drm_device *dev, |
294 | struct drm_mode_object *obj) | |
295 | { | |
ad2563c2 | 296 | mutex_lock(&dev->mode_config.idr_mutex); |
2ee39452 | 297 | idr_replace(&dev->mode_config.crtc_idr, obj, obj->id); |
ad2563c2 | 298 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
299 | } |
300 | ||
301 | /** | |
7c8f6d25 | 302 | * drm_mode_object_unregister - free a modeset identifer |
f453ba04 | 303 | * @dev: DRM device |
065a50ed | 304 | * @object: object to free |
f453ba04 | 305 | * |
7c8f6d25 DA |
306 | * Free @id from @dev's unique identifier pool. |
307 | * This function can be called multiple times, and guards against | |
308 | * multiple removals. | |
309 | * These modeset identifiers are _not_ reference counted. Hence don't use this | |
c8e32cc1 | 310 | * for reference counted modeset objects like framebuffers. |
f453ba04 | 311 | */ |
7c8f6d25 | 312 | void drm_mode_object_unregister(struct drm_device *dev, |
8bd441b2 | 313 | struct drm_mode_object *object) |
f453ba04 | 314 | { |
ad2563c2 | 315 | mutex_lock(&dev->mode_config.idr_mutex); |
7c8f6d25 DA |
316 | if (object->id) { |
317 | idr_remove(&dev->mode_config.crtc_idr, object->id); | |
318 | object->id = 0; | |
319 | } | |
ad2563c2 | 320 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
321 | } |
322 | ||
98f75de4 RC |
323 | static struct drm_mode_object *_object_find(struct drm_device *dev, |
324 | uint32_t id, uint32_t type) | |
325 | { | |
326 | struct drm_mode_object *obj = NULL; | |
327 | ||
328 | mutex_lock(&dev->mode_config.idr_mutex); | |
329 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
168c02ec DV |
330 | if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type) |
331 | obj = NULL; | |
332 | if (obj && obj->id != id) | |
333 | obj = NULL; | |
72fe90b8 DA |
334 | |
335 | if (obj && obj->free_cb) { | |
336 | if (!kref_get_unless_zero(&obj->refcount)) | |
337 | obj = NULL; | |
338 | } | |
98f75de4 RC |
339 | mutex_unlock(&dev->mode_config.idr_mutex); |
340 | ||
341 | return obj; | |
342 | } | |
343 | ||
786b99ed DV |
344 | /** |
345 | * drm_mode_object_find - look up a drm object with static lifetime | |
346 | * @dev: drm device | |
347 | * @id: id of the mode object | |
348 | * @type: type of the mode object | |
349 | * | |
05981422 DV |
350 | * This function is used to look up a modeset object. It will acquire a |
351 | * reference for reference counted objects. This reference must be dropped again | |
352 | * by callind drm_mode_object_unreference(). | |
786b99ed | 353 | */ |
7a9c9060 DV |
354 | struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
355 | uint32_t id, uint32_t type) | |
f453ba04 | 356 | { |
ad2563c2 | 357 | struct drm_mode_object *obj = NULL; |
f453ba04 | 358 | |
98f75de4 | 359 | obj = _object_find(dev, id, type); |
f453ba04 DA |
360 | return obj; |
361 | } | |
362 | EXPORT_SYMBOL(drm_mode_object_find); | |
363 | ||
05981422 DV |
364 | /** |
365 | * drm_mode_object_unreference - decr the object refcnt | |
366 | * @obj: mode_object | |
367 | * | |
368 | * This functions decrements the object's refcount if it is a refcounted modeset | |
369 | * object. It is a no-op on any other object. This is used to drop references | |
370 | * acquired with drm_mode_object_reference(). | |
371 | */ | |
d0f37cf6 DA |
372 | void drm_mode_object_unreference(struct drm_mode_object *obj) |
373 | { | |
374 | if (obj->free_cb) { | |
375 | DRM_DEBUG("OBJ ID: %d (%d)\n", obj->id, atomic_read(&obj->refcount.refcount)); | |
376 | kref_put(&obj->refcount, obj->free_cb); | |
377 | } | |
378 | } | |
379 | EXPORT_SYMBOL(drm_mode_object_unreference); | |
380 | ||
381 | /** | |
05981422 | 382 | * drm_mode_object_reference - incr the object refcnt |
d0f37cf6 DA |
383 | * @obj: mode_object |
384 | * | |
05981422 DV |
385 | * This functions increments the object's refcount if it is a refcounted modeset |
386 | * object. It is a no-op on any other object. References should be dropped again | |
387 | * by calling drm_mode_object_unreference(). | |
d0f37cf6 DA |
388 | */ |
389 | void drm_mode_object_reference(struct drm_mode_object *obj) | |
390 | { | |
391 | if (obj->free_cb) { | |
392 | DRM_DEBUG("OBJ ID: %d (%d)\n", obj->id, atomic_read(&obj->refcount.refcount)); | |
393 | kref_get(&obj->refcount); | |
394 | } | |
395 | } | |
396 | EXPORT_SYMBOL(drm_mode_object_reference); | |
397 | ||
f55f1f91 DA |
398 | static void drm_framebuffer_free(struct kref *kref) |
399 | { | |
400 | struct drm_framebuffer *fb = | |
d0f37cf6 | 401 | container_of(kref, struct drm_framebuffer, base.refcount); |
f55f1f91 DA |
402 | struct drm_device *dev = fb->dev; |
403 | ||
404 | /* | |
405 | * The lookup idr holds a weak reference, which has not necessarily been | |
406 | * removed at this point. Check for that. | |
407 | */ | |
19ab3f8b | 408 | drm_mode_object_unregister(dev, &fb->base); |
f55f1f91 DA |
409 | |
410 | fb->funcs->destroy(fb); | |
411 | } | |
412 | ||
f453ba04 DA |
413 | /** |
414 | * drm_framebuffer_init - initialize a framebuffer | |
415 | * @dev: DRM device | |
065a50ed DV |
416 | * @fb: framebuffer to be initialized |
417 | * @funcs: ... with these functions | |
f453ba04 | 418 | * |
f453ba04 DA |
419 | * Allocates an ID for the framebuffer's parent mode object, sets its mode |
420 | * functions & device file and adds it to the master fd list. | |
421 | * | |
4b096ac1 DV |
422 | * IMPORTANT: |
423 | * This functions publishes the fb and makes it available for concurrent access | |
424 | * by other users. Which means by this point the fb _must_ be fully set up - | |
425 | * since all the fb attributes are invariant over its lifetime, no further | |
426 | * locking but only correct reference counting is required. | |
427 | * | |
c8e32cc1 | 428 | * Returns: |
af901ca1 | 429 | * Zero on success, error code on failure. |
f453ba04 DA |
430 | */ |
431 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, | |
432 | const struct drm_framebuffer_funcs *funcs) | |
433 | { | |
434 | int ret; | |
435 | ||
4b096ac1 DV |
436 | INIT_LIST_HEAD(&fb->filp_head); |
437 | fb->dev = dev; | |
438 | fb->funcs = funcs; | |
f7eff60e | 439 | |
d0f37cf6 | 440 | ret = drm_mode_object_get_reg(dev, &fb->base, DRM_MODE_OBJECT_FB, |
9cd47424 | 441 | false, drm_framebuffer_free); |
6bfc56aa | 442 | if (ret) |
4b096ac1 | 443 | goto out; |
f453ba04 | 444 | |
9cd47424 | 445 | mutex_lock(&dev->mode_config.fb_lock); |
f453ba04 DA |
446 | dev->mode_config.num_fb++; |
447 | list_add(&fb->head, &dev->mode_config.fb_list); | |
2ddea3fd | 448 | mutex_unlock(&dev->mode_config.fb_lock); |
f453ba04 | 449 | |
9cd47424 | 450 | drm_mode_object_register(dev, &fb->base); |
9cd47424 | 451 | out: |
3c67d839 | 452 | return ret; |
f453ba04 DA |
453 | } |
454 | EXPORT_SYMBOL(drm_framebuffer_init); | |
455 | ||
786b99ed DV |
456 | /** |
457 | * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference | |
458 | * @dev: drm device | |
459 | * @id: id of the fb object | |
460 | * | |
461 | * If successful, this grabs an additional reference to the framebuffer - | |
462 | * callers need to make sure to eventually unreference the returned framebuffer | |
c8e32cc1 | 463 | * again, using @drm_framebuffer_unreference. |
786b99ed DV |
464 | */ |
465 | struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, | |
466 | uint32_t id) | |
467 | { | |
cee26ac4 DA |
468 | struct drm_mode_object *obj; |
469 | struct drm_framebuffer *fb = NULL; | |
786b99ed | 470 | |
cee26ac4 | 471 | obj = _object_find(dev, id, DRM_MODE_OBJECT_FB); |
72fe90b8 | 472 | if (obj) |
cee26ac4 | 473 | fb = obj_to_fb(obj); |
786b99ed DV |
474 | return fb; |
475 | } | |
476 | EXPORT_SYMBOL(drm_framebuffer_lookup); | |
477 | ||
36206361 DV |
478 | /** |
479 | * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr | |
480 | * @fb: fb to unregister | |
481 | * | |
482 | * Drivers need to call this when cleaning up driver-private framebuffers, e.g. | |
483 | * those used for fbdev. Note that the caller must hold a reference of it's own, | |
484 | * i.e. the object may not be destroyed through this call (since it'll lead to a | |
485 | * locking inversion). | |
486 | */ | |
487 | void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) | |
488 | { | |
a39a357c DV |
489 | struct drm_device *dev; |
490 | ||
491 | if (!fb) | |
492 | return; | |
493 | ||
494 | dev = fb->dev; | |
2b677e8c | 495 | |
2b677e8c | 496 | /* Mark fb as reaped and drop idr ref. */ |
19ab3f8b | 497 | drm_mode_object_unregister(dev, &fb->base); |
36206361 DV |
498 | } |
499 | EXPORT_SYMBOL(drm_framebuffer_unregister_private); | |
500 | ||
f453ba04 DA |
501 | /** |
502 | * drm_framebuffer_cleanup - remove a framebuffer object | |
503 | * @fb: framebuffer to remove | |
504 | * | |
c8e32cc1 DV |
505 | * Cleanup framebuffer. This function is intended to be used from the drivers |
506 | * ->destroy callback. It can also be used to clean up driver private | |
2e7a5701 | 507 | * framebuffers embedded into a larger structure. |
36206361 DV |
508 | * |
509 | * Note that this function does not remove the fb from active usuage - if it is | |
510 | * still used anywhere, hilarity can ensue since userspace could call getfb on | |
511 | * the id and get back -EINVAL. Obviously no concern at driver unload time. | |
512 | * | |
513 | * Also, the framebuffer will not be removed from the lookup idr - for | |
514 | * user-created framebuffers this will happen in in the rmfb ioctl. For | |
515 | * driver-private objects (e.g. for fbdev) drivers need to explicitly call | |
516 | * drm_framebuffer_unregister_private. | |
f453ba04 DA |
517 | */ |
518 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) | |
f7eff60e RC |
519 | { |
520 | struct drm_device *dev = fb->dev; | |
8faf6b18 | 521 | |
4b096ac1 | 522 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e RC |
523 | list_del(&fb->head); |
524 | dev->mode_config.num_fb--; | |
4b096ac1 | 525 | mutex_unlock(&dev->mode_config.fb_lock); |
f7eff60e RC |
526 | } |
527 | EXPORT_SYMBOL(drm_framebuffer_cleanup); | |
528 | ||
529 | /** | |
530 | * drm_framebuffer_remove - remove and unreference a framebuffer object | |
531 | * @fb: framebuffer to remove | |
532 | * | |
f7eff60e | 533 | * Scans all the CRTCs and planes in @dev's mode_config. If they're |
36206361 | 534 | * using @fb, removes it, setting it to NULL. Then drops the reference to the |
b62584e3 DV |
535 | * passed-in framebuffer. Might take the modeset locks. |
536 | * | |
537 | * Note that this function optimizes the cleanup away if the caller holds the | |
538 | * last reference to the framebuffer. It is also guaranteed to not take the | |
539 | * modeset locks in this case. | |
f7eff60e RC |
540 | */ |
541 | void drm_framebuffer_remove(struct drm_framebuffer *fb) | |
f453ba04 | 542 | { |
a39a357c | 543 | struct drm_device *dev; |
f453ba04 | 544 | struct drm_crtc *crtc; |
8cf5c917 | 545 | struct drm_plane *plane; |
5ef5f72f DA |
546 | struct drm_mode_set set; |
547 | int ret; | |
f453ba04 | 548 | |
a39a357c DV |
549 | if (!fb) |
550 | return; | |
551 | ||
552 | dev = fb->dev; | |
553 | ||
4b096ac1 | 554 | WARN_ON(!list_empty(&fb->filp_head)); |
8faf6b18 | 555 | |
b62584e3 DV |
556 | /* |
557 | * drm ABI mandates that we remove any deleted framebuffers from active | |
558 | * useage. But since most sane clients only remove framebuffers they no | |
559 | * longer need, try to optimize this away. | |
560 | * | |
561 | * Since we're holding a reference ourselves, observing a refcount of 1 | |
562 | * means that we're the last holder and can skip it. Also, the refcount | |
563 | * can never increase from 1 again, so we don't need any barriers or | |
564 | * locks. | |
565 | * | |
566 | * Note that userspace could try to race with use and instate a new | |
567 | * usage _after_ we've cleared all current ones. End result will be an | |
568 | * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot | |
569 | * in this manner. | |
570 | */ | |
747a598f | 571 | if (drm_framebuffer_read_refcount(fb) > 1) { |
b62584e3 DV |
572 | drm_modeset_lock_all(dev); |
573 | /* remove from any CRTC */ | |
6295d607 | 574 | drm_for_each_crtc(crtc, dev) { |
f4510a27 | 575 | if (crtc->primary->fb == fb) { |
b62584e3 DV |
576 | /* should turn off the crtc */ |
577 | memset(&set, 0, sizeof(struct drm_mode_set)); | |
578 | set.crtc = crtc; | |
579 | set.fb = NULL; | |
580 | ret = drm_mode_set_config_internal(&set); | |
581 | if (ret) | |
582 | DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); | |
583 | } | |
5ef5f72f | 584 | } |
f453ba04 | 585 | |
6295d607 | 586 | drm_for_each_plane(plane, dev) { |
9125e618 VS |
587 | if (plane->fb == fb) |
588 | drm_plane_force_disable(plane); | |
8cf5c917 | 589 | } |
b62584e3 | 590 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
591 | } |
592 | ||
f7eff60e | 593 | drm_framebuffer_unreference(fb); |
f453ba04 | 594 | } |
f7eff60e | 595 | EXPORT_SYMBOL(drm_framebuffer_remove); |
f453ba04 | 596 | |
51fd371b RC |
597 | DEFINE_WW_CLASS(crtc_ww_class); |
598 | ||
fa3ab4c2 VS |
599 | static unsigned int drm_num_crtcs(struct drm_device *dev) |
600 | { | |
601 | unsigned int num = 0; | |
602 | struct drm_crtc *tmp; | |
603 | ||
604 | drm_for_each_crtc(tmp, dev) { | |
605 | num++; | |
606 | } | |
607 | ||
608 | return num; | |
609 | } | |
610 | ||
f453ba04 | 611 | /** |
e13161af MR |
612 | * drm_crtc_init_with_planes - Initialise a new CRTC object with |
613 | * specified primary and cursor planes. | |
f453ba04 DA |
614 | * @dev: DRM device |
615 | * @crtc: CRTC object to init | |
e13161af MR |
616 | * @primary: Primary plane for CRTC |
617 | * @cursor: Cursor plane for CRTC | |
f453ba04 | 618 | * @funcs: callbacks for the new CRTC |
f9882876 | 619 | * @name: printf style format string for the CRTC name, or NULL for default name |
f453ba04 | 620 | * |
ad6f5c34 | 621 | * Inits a new object created as base part of a driver crtc object. |
6bfc56aa | 622 | * |
c8e32cc1 | 623 | * Returns: |
6bfc56aa | 624 | * Zero on success, error code on failure. |
f453ba04 | 625 | */ |
e13161af MR |
626 | int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, |
627 | struct drm_plane *primary, | |
fc1d3e44 | 628 | struct drm_plane *cursor, |
f9882876 VS |
629 | const struct drm_crtc_funcs *funcs, |
630 | const char *name, ...) | |
f453ba04 | 631 | { |
51fd371b | 632 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
633 | int ret; |
634 | ||
522cf91f BG |
635 | WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY); |
636 | WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR); | |
637 | ||
f453ba04 DA |
638 | crtc->dev = dev; |
639 | crtc->funcs = funcs; | |
640 | ||
3b24f7d6 DV |
641 | INIT_LIST_HEAD(&crtc->commit_list); |
642 | spin_lock_init(&crtc->commit_lock); | |
643 | ||
51fd371b | 644 | drm_modeset_lock_init(&crtc->mutex); |
6bfc56aa VS |
645 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); |
646 | if (ret) | |
baf698b0 | 647 | return ret; |
f453ba04 | 648 | |
fa3ab4c2 VS |
649 | if (name) { |
650 | va_list ap; | |
651 | ||
652 | va_start(ap, name); | |
653 | crtc->name = kvasprintf(GFP_KERNEL, name, ap); | |
654 | va_end(ap); | |
655 | } else { | |
656 | crtc->name = kasprintf(GFP_KERNEL, "crtc-%d", | |
657 | drm_num_crtcs(dev)); | |
658 | } | |
659 | if (!crtc->name) { | |
7c8f6d25 | 660 | drm_mode_object_unregister(dev, &crtc->base); |
fa3ab4c2 VS |
661 | return -ENOMEM; |
662 | } | |
663 | ||
bffd9de0 PZ |
664 | crtc->base.properties = &crtc->properties; |
665 | ||
51fd371b | 666 | list_add_tail(&crtc->head, &config->crtc_list); |
490d3d1b | 667 | crtc->index = config->num_crtc++; |
6bfc56aa | 668 | |
e13161af | 669 | crtc->primary = primary; |
fc1d3e44 | 670 | crtc->cursor = cursor; |
e13161af MR |
671 | if (primary) |
672 | primary->possible_crtcs = 1 << drm_crtc_index(crtc); | |
fc1d3e44 MR |
673 | if (cursor) |
674 | cursor->possible_crtcs = 1 << drm_crtc_index(crtc); | |
e13161af | 675 | |
eab3bbef DV |
676 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
677 | drm_object_attach_property(&crtc->base, config->prop_active, 0); | |
955f3c33 | 678 | drm_object_attach_property(&crtc->base, config->prop_mode_id, 0); |
eab3bbef DV |
679 | } |
680 | ||
baf698b0 | 681 | return 0; |
f453ba04 | 682 | } |
e13161af | 683 | EXPORT_SYMBOL(drm_crtc_init_with_planes); |
f453ba04 DA |
684 | |
685 | /** | |
ad6f5c34 | 686 | * drm_crtc_cleanup - Clean up the core crtc usage |
f453ba04 DA |
687 | * @crtc: CRTC to cleanup |
688 | * | |
ad6f5c34 VS |
689 | * This function cleans up @crtc and removes it from the DRM mode setting |
690 | * core. Note that the function does *not* free the crtc structure itself, | |
691 | * this is the responsibility of the caller. | |
f453ba04 DA |
692 | */ |
693 | void drm_crtc_cleanup(struct drm_crtc *crtc) | |
694 | { | |
695 | struct drm_device *dev = crtc->dev; | |
696 | ||
490d3d1b CW |
697 | /* Note that the crtc_list is considered to be static; should we |
698 | * remove the drm_crtc at runtime we would have to decrement all | |
699 | * the indices on the drm_crtc after us in the crtc_list. | |
700 | */ | |
701 | ||
9e1c156f SK |
702 | kfree(crtc->gamma_store); |
703 | crtc->gamma_store = NULL; | |
f453ba04 | 704 | |
51fd371b RC |
705 | drm_modeset_lock_fini(&crtc->mutex); |
706 | ||
7c8f6d25 | 707 | drm_mode_object_unregister(dev, &crtc->base); |
f453ba04 DA |
708 | list_del(&crtc->head); |
709 | dev->mode_config.num_crtc--; | |
3009c037 TR |
710 | |
711 | WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); | |
712 | if (crtc->state && crtc->funcs->atomic_destroy_state) | |
713 | crtc->funcs->atomic_destroy_state(crtc, crtc->state); | |
a18c0af1 | 714 | |
fa3ab4c2 VS |
715 | kfree(crtc->name); |
716 | ||
a18c0af1 | 717 | memset(crtc, 0, sizeof(*crtc)); |
f453ba04 DA |
718 | } |
719 | EXPORT_SYMBOL(drm_crtc_cleanup); | |
720 | ||
86f422d5 | 721 | /* |
f453ba04 DA |
722 | * drm_mode_remove - remove and free a mode |
723 | * @connector: connector list to modify | |
724 | * @mode: mode to remove | |
725 | * | |
f453ba04 DA |
726 | * Remove @mode from @connector's mode list, then free it. |
727 | */ | |
86f422d5 LD |
728 | static void drm_mode_remove(struct drm_connector *connector, |
729 | struct drm_display_mode *mode) | |
f453ba04 DA |
730 | { |
731 | list_del(&mode->head); | |
554f1d78 | 732 | drm_mode_destroy(connector->dev, mode); |
f453ba04 | 733 | } |
f453ba04 | 734 | |
b5571e9d BB |
735 | /** |
736 | * drm_display_info_set_bus_formats - set the supported bus formats | |
737 | * @info: display info to store bus formats in | |
e37bfa1a BB |
738 | * @formats: array containing the supported bus formats |
739 | * @num_formats: the number of entries in the fmts array | |
b5571e9d BB |
740 | * |
741 | * Store the supported bus formats in display info structure. | |
742 | * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for | |
743 | * a full list of available formats. | |
744 | */ | |
745 | int drm_display_info_set_bus_formats(struct drm_display_info *info, | |
746 | const u32 *formats, | |
747 | unsigned int num_formats) | |
748 | { | |
749 | u32 *fmts = NULL; | |
750 | ||
751 | if (!formats && num_formats) | |
752 | return -EINVAL; | |
753 | ||
754 | if (formats && num_formats) { | |
755 | fmts = kmemdup(formats, sizeof(*formats) * num_formats, | |
756 | GFP_KERNEL); | |
944579c5 | 757 | if (!fmts) |
b5571e9d BB |
758 | return -ENOMEM; |
759 | } | |
760 | ||
761 | kfree(info->bus_formats); | |
762 | info->bus_formats = fmts; | |
763 | info->num_bus_formats = num_formats; | |
764 | ||
765 | return 0; | |
766 | } | |
767 | EXPORT_SYMBOL(drm_display_info_set_bus_formats); | |
768 | ||
eaf99c74 CW |
769 | /** |
770 | * drm_connector_get_cmdline_mode - reads the user's cmdline mode | |
771 | * @connector: connector to quwery | |
eaf99c74 CW |
772 | * |
773 | * The kernel supports per-connector configration of its consoles through | |
774 | * use of the video= parameter. This function parses that option and | |
775 | * extracts the user's specified mode (or enable/disable status) for a | |
776 | * particular connector. This is typically only used during the early fbdev | |
777 | * setup. | |
778 | */ | |
779 | static void drm_connector_get_cmdline_mode(struct drm_connector *connector) | |
780 | { | |
781 | struct drm_cmdline_mode *mode = &connector->cmdline_mode; | |
782 | char *option = NULL; | |
783 | ||
784 | if (fb_get_options(connector->name, &option)) | |
785 | return; | |
786 | ||
787 | if (!drm_mode_parse_command_line_for_connector(option, | |
788 | connector, | |
789 | mode)) | |
790 | return; | |
791 | ||
792 | if (mode->force) { | |
793 | const char *s; | |
794 | ||
795 | switch (mode->force) { | |
796 | case DRM_FORCE_OFF: | |
797 | s = "OFF"; | |
798 | break; | |
799 | case DRM_FORCE_ON_DIGITAL: | |
800 | s = "ON - dig"; | |
801 | break; | |
802 | default: | |
803 | case DRM_FORCE_ON: | |
804 | s = "ON"; | |
805 | break; | |
806 | } | |
807 | ||
808 | DRM_INFO("forcing %s connector %s\n", connector->name, s); | |
809 | connector->force = mode->force; | |
810 | } | |
811 | ||
812 | DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", | |
813 | connector->name, | |
814 | mode->xres, mode->yres, | |
815 | mode->refresh_specified ? mode->refresh : 60, | |
816 | mode->rb ? " reduced blanking" : "", | |
817 | mode->margins ? " with margins" : "", | |
818 | mode->interlace ? " interlaced" : ""); | |
819 | } | |
820 | ||
b164d31f DA |
821 | static void drm_connector_free(struct kref *kref) |
822 | { | |
823 | struct drm_connector *connector = | |
824 | container_of(kref, struct drm_connector, base.refcount); | |
825 | struct drm_device *dev = connector->dev; | |
826 | ||
827 | drm_mode_object_unregister(dev, &connector->base); | |
828 | connector->funcs->destroy(connector); | |
829 | } | |
830 | ||
f453ba04 DA |
831 | /** |
832 | * drm_connector_init - Init a preallocated connector | |
833 | * @dev: DRM device | |
834 | * @connector: the connector to init | |
835 | * @funcs: callbacks for this connector | |
065a50ed | 836 | * @connector_type: user visible type of the connector |
f453ba04 | 837 | * |
f453ba04 DA |
838 | * Initialises a preallocated connector. Connectors should be |
839 | * subclassed as part of driver connector objects. | |
6bfc56aa | 840 | * |
c8e32cc1 | 841 | * Returns: |
6bfc56aa | 842 | * Zero on success, error code on failure. |
f453ba04 | 843 | */ |
6bfc56aa VS |
844 | int drm_connector_init(struct drm_device *dev, |
845 | struct drm_connector *connector, | |
846 | const struct drm_connector_funcs *funcs, | |
847 | int connector_type) | |
f453ba04 | 848 | { |
ae16c597 | 849 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa | 850 | int ret; |
b21e3afe IM |
851 | struct ida *connector_ida = |
852 | &drm_connector_enum_list[connector_type].ida; | |
6bfc56aa | 853 | |
84849903 | 854 | drm_modeset_lock_all(dev); |
f453ba04 | 855 | |
b164d31f DA |
856 | ret = drm_mode_object_get_reg(dev, &connector->base, |
857 | DRM_MODE_OBJECT_CONNECTOR, | |
858 | false, drm_connector_free); | |
6bfc56aa | 859 | if (ret) |
2abdd313 | 860 | goto out_unlock; |
6bfc56aa | 861 | |
7e3bdf4a | 862 | connector->base.properties = &connector->properties; |
f453ba04 DA |
863 | connector->dev = dev; |
864 | connector->funcs = funcs; | |
5fff80bb ML |
865 | |
866 | connector->connector_id = ida_simple_get(&config->connector_ida, 0, 0, GFP_KERNEL); | |
867 | if (connector->connector_id < 0) { | |
868 | ret = connector->connector_id; | |
869 | goto out_put; | |
870 | } | |
871 | ||
f453ba04 DA |
872 | connector->connector_type = connector_type; |
873 | connector->connector_type_id = | |
b21e3afe IM |
874 | ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); |
875 | if (connector->connector_type_id < 0) { | |
876 | ret = connector->connector_type_id; | |
5fff80bb | 877 | goto out_put_id; |
b21e3afe | 878 | } |
2abdd313 JN |
879 | connector->name = |
880 | kasprintf(GFP_KERNEL, "%s-%d", | |
881 | drm_connector_enum_list[connector_type].name, | |
882 | connector->connector_type_id); | |
883 | if (!connector->name) { | |
884 | ret = -ENOMEM; | |
5fff80bb | 885 | goto out_put_type_id; |
2abdd313 JN |
886 | } |
887 | ||
f453ba04 DA |
888 | INIT_LIST_HEAD(&connector->probed_modes); |
889 | INIT_LIST_HEAD(&connector->modes); | |
890 | connector->edid_blob_ptr = NULL; | |
5e2cb2f6 | 891 | connector->status = connector_status_unknown; |
f453ba04 | 892 | |
eaf99c74 CW |
893 | drm_connector_get_cmdline_mode(connector); |
894 | ||
c7eb76f4 DV |
895 | /* We should add connectors at the end to avoid upsetting the connector |
896 | * index too much. */ | |
ae16c597 RC |
897 | list_add_tail(&connector->head, &config->connector_list); |
898 | config->num_connector++; | |
f453ba04 | 899 | |
a7331e5c | 900 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) |
58495563 | 901 | drm_object_attach_property(&connector->base, |
ae16c597 | 902 | config->edid_property, |
a7331e5c | 903 | 0); |
f453ba04 | 904 | |
58495563 | 905 | drm_object_attach_property(&connector->base, |
ae16c597 RC |
906 | config->dpms_property, 0); |
907 | ||
908 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { | |
909 | drm_object_attach_property(&connector->base, config->prop_crtc_id, 0); | |
910 | } | |
f453ba04 | 911 | |
30f65707 | 912 | connector->debugfs_entry = NULL; |
5fff80bb ML |
913 | out_put_type_id: |
914 | if (ret) | |
915 | ida_remove(connector_ida, connector->connector_type_id); | |
916 | out_put_id: | |
917 | if (ret) | |
918 | ida_remove(&config->connector_ida, connector->connector_id); | |
2abdd313 JN |
919 | out_put: |
920 | if (ret) | |
7c8f6d25 | 921 | drm_mode_object_unregister(dev, &connector->base); |
2abdd313 JN |
922 | |
923 | out_unlock: | |
84849903 | 924 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
925 | |
926 | return ret; | |
f453ba04 DA |
927 | } |
928 | EXPORT_SYMBOL(drm_connector_init); | |
929 | ||
930 | /** | |
931 | * drm_connector_cleanup - cleans up an initialised connector | |
932 | * @connector: connector to cleanup | |
933 | * | |
f453ba04 DA |
934 | * Cleans up the connector but doesn't free the object. |
935 | */ | |
936 | void drm_connector_cleanup(struct drm_connector *connector) | |
937 | { | |
938 | struct drm_device *dev = connector->dev; | |
939 | struct drm_display_mode *mode, *t; | |
940 | ||
80de3461 CW |
941 | /* The connector should have been removed from userspace long before |
942 | * it is finally destroyed. | |
943 | */ | |
944 | if (WARN_ON(connector->registered)) | |
945 | drm_connector_unregister(connector); | |
946 | ||
40d9b043 DA |
947 | if (connector->tile_group) { |
948 | drm_mode_put_tile_group(dev, connector->tile_group); | |
949 | connector->tile_group = NULL; | |
950 | } | |
951 | ||
f453ba04 DA |
952 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) |
953 | drm_mode_remove(connector, mode); | |
954 | ||
955 | list_for_each_entry_safe(mode, t, &connector->modes, head) | |
956 | drm_mode_remove(connector, mode); | |
957 | ||
b21e3afe IM |
958 | ida_remove(&drm_connector_enum_list[connector->connector_type].ida, |
959 | connector->connector_type_id); | |
960 | ||
5fff80bb ML |
961 | ida_remove(&dev->mode_config.connector_ida, |
962 | connector->connector_id); | |
963 | ||
b5571e9d | 964 | kfree(connector->display_info.bus_formats); |
7c8f6d25 | 965 | drm_mode_object_unregister(dev, &connector->base); |
2abdd313 JN |
966 | kfree(connector->name); |
967 | connector->name = NULL; | |
f453ba04 | 968 | list_del(&connector->head); |
6380c509 | 969 | dev->mode_config.num_connector--; |
3009c037 TR |
970 | |
971 | WARN_ON(connector->state && !connector->funcs->atomic_destroy_state); | |
972 | if (connector->state && connector->funcs->atomic_destroy_state) | |
973 | connector->funcs->atomic_destroy_state(connector, | |
974 | connector->state); | |
a18c0af1 TR |
975 | |
976 | memset(connector, 0, sizeof(*connector)); | |
f453ba04 DA |
977 | } |
978 | EXPORT_SYMBOL(drm_connector_cleanup); | |
979 | ||
34ea3d38 TW |
980 | /** |
981 | * drm_connector_register - register a connector | |
982 | * @connector: the connector to register | |
983 | * | |
984 | * Register userspace interfaces for a connector | |
985 | * | |
986 | * Returns: | |
987 | * Zero on success, error code on failure. | |
988 | */ | |
989 | int drm_connector_register(struct drm_connector *connector) | |
990 | { | |
30f65707 TW |
991 | int ret; |
992 | ||
40daac61 CW |
993 | if (connector->registered) |
994 | return 0; | |
995 | ||
30f65707 TW |
996 | ret = drm_sysfs_connector_add(connector); |
997 | if (ret) | |
998 | return ret; | |
999 | ||
1000 | ret = drm_debugfs_connector_add(connector); | |
1001 | if (ret) { | |
aaf285e2 CW |
1002 | goto err_sysfs; |
1003 | } | |
1004 | ||
1005 | if (connector->funcs->late_register) { | |
1006 | ret = connector->funcs->late_register(connector); | |
1007 | if (ret) | |
1008 | goto err_debugfs; | |
30f65707 TW |
1009 | } |
1010 | ||
fdf2c85f DV |
1011 | drm_mode_object_register(connector->dev, &connector->base); |
1012 | ||
40daac61 | 1013 | connector->registered = true; |
30f65707 | 1014 | return 0; |
aaf285e2 CW |
1015 | |
1016 | err_debugfs: | |
1017 | drm_debugfs_connector_remove(connector); | |
1018 | err_sysfs: | |
1019 | drm_sysfs_connector_remove(connector); | |
1020 | return ret; | |
34ea3d38 TW |
1021 | } |
1022 | EXPORT_SYMBOL(drm_connector_register); | |
1023 | ||
1024 | /** | |
1025 | * drm_connector_unregister - unregister a connector | |
1026 | * @connector: the connector to unregister | |
1027 | * | |
1028 | * Unregister userspace interfaces for a connector | |
1029 | */ | |
1030 | void drm_connector_unregister(struct drm_connector *connector) | |
1031 | { | |
40daac61 CW |
1032 | if (!connector->registered) |
1033 | return; | |
1034 | ||
aaf285e2 CW |
1035 | if (connector->funcs->early_unregister) |
1036 | connector->funcs->early_unregister(connector); | |
1037 | ||
34ea3d38 | 1038 | drm_sysfs_connector_remove(connector); |
30f65707 | 1039 | drm_debugfs_connector_remove(connector); |
40daac61 CW |
1040 | |
1041 | connector->registered = false; | |
34ea3d38 TW |
1042 | } |
1043 | EXPORT_SYMBOL(drm_connector_unregister); | |
1044 | ||
54d2c2da AB |
1045 | /** |
1046 | * drm_connector_register_all - register all connectors | |
1047 | * @dev: drm device | |
1048 | * | |
1049 | * This function registers all connectors in sysfs and other places so that | |
e28cd4d0 CW |
1050 | * userspace can start to access them. drm_connector_register_all() is called |
1051 | * automatically from drm_dev_register() to complete the device registration, | |
1052 | * if they don't call drm_connector_register() on each connector individually. | |
54d2c2da AB |
1053 | * |
1054 | * When a device is unplugged and should be removed from userspace access, | |
1055 | * call drm_connector_unregister_all(), which is the inverse of this | |
1056 | * function. | |
1057 | * | |
1058 | * Returns: | |
1059 | * Zero on success, error code on failure. | |
1060 | */ | |
1061 | int drm_connector_register_all(struct drm_device *dev) | |
1062 | { | |
1063 | struct drm_connector *connector; | |
1064 | int ret; | |
1065 | ||
1066 | mutex_lock(&dev->mode_config.mutex); | |
1067 | ||
1068 | drm_for_each_connector(connector, dev) { | |
1069 | ret = drm_connector_register(connector); | |
1070 | if (ret) | |
1071 | goto err; | |
1072 | } | |
1073 | ||
1074 | mutex_unlock(&dev->mode_config.mutex); | |
1075 | ||
1076 | return 0; | |
1077 | ||
1078 | err: | |
1079 | mutex_unlock(&dev->mode_config.mutex); | |
1080 | drm_connector_unregister_all(dev); | |
1081 | return ret; | |
1082 | } | |
1083 | EXPORT_SYMBOL(drm_connector_register_all); | |
1084 | ||
c8e32cc1 | 1085 | /** |
6c87e5c3 | 1086 | * drm_connector_unregister_all - unregister connector userspace interfaces |
c8e32cc1 DV |
1087 | * @dev: drm device |
1088 | * | |
6c87e5c3 AB |
1089 | * This functions unregisters all connectors from sysfs and other places so |
1090 | * that userspace can no longer access them. Drivers should call this as the | |
1091 | * first step tearing down the device instace, or when the underlying | |
1092 | * physical device disappeared (e.g. USB unplug), right before calling | |
1093 | * drm_dev_unregister(). | |
c8e32cc1 | 1094 | */ |
6c87e5c3 | 1095 | void drm_connector_unregister_all(struct drm_device *dev) |
cbc7e221 DA |
1096 | { |
1097 | struct drm_connector *connector; | |
1098 | ||
9a9f5ce8 | 1099 | /* FIXME: taking the mode config mutex ends up in a clash with sysfs */ |
14ba0031 | 1100 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) |
34ea3d38 | 1101 | drm_connector_unregister(connector); |
cbc7e221 | 1102 | } |
6c87e5c3 | 1103 | EXPORT_SYMBOL(drm_connector_unregister_all); |
cbc7e221 | 1104 | |
c8e32cc1 DV |
1105 | /** |
1106 | * drm_encoder_init - Init a preallocated encoder | |
1107 | * @dev: drm device | |
1108 | * @encoder: the encoder to init | |
1109 | * @funcs: callbacks for this encoder | |
1110 | * @encoder_type: user visible type of the encoder | |
13a3d91f | 1111 | * @name: printf style format string for the encoder name, or NULL for default name |
c8e32cc1 DV |
1112 | * |
1113 | * Initialises a preallocated encoder. Encoder should be | |
1114 | * subclassed as part of driver encoder objects. | |
1115 | * | |
1116 | * Returns: | |
1117 | * Zero on success, error code on failure. | |
1118 | */ | |
6bfc56aa | 1119 | int drm_encoder_init(struct drm_device *dev, |
cbc7e221 DA |
1120 | struct drm_encoder *encoder, |
1121 | const struct drm_encoder_funcs *funcs, | |
13a3d91f | 1122 | int encoder_type, const char *name, ...) |
f453ba04 | 1123 | { |
6bfc56aa VS |
1124 | int ret; |
1125 | ||
84849903 | 1126 | drm_modeset_lock_all(dev); |
f453ba04 | 1127 | |
6bfc56aa VS |
1128 | ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
1129 | if (ret) | |
e5748946 | 1130 | goto out_unlock; |
f453ba04 | 1131 | |
6bfc56aa | 1132 | encoder->dev = dev; |
f453ba04 DA |
1133 | encoder->encoder_type = encoder_type; |
1134 | encoder->funcs = funcs; | |
86bf546b VS |
1135 | if (name) { |
1136 | va_list ap; | |
1137 | ||
1138 | va_start(ap, name); | |
1139 | encoder->name = kvasprintf(GFP_KERNEL, name, ap); | |
1140 | va_end(ap); | |
1141 | } else { | |
1142 | encoder->name = kasprintf(GFP_KERNEL, "%s-%d", | |
1143 | drm_encoder_enum_list[encoder_type].name, | |
1144 | encoder->base.id); | |
1145 | } | |
e5748946 JN |
1146 | if (!encoder->name) { |
1147 | ret = -ENOMEM; | |
1148 | goto out_put; | |
1149 | } | |
f453ba04 DA |
1150 | |
1151 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); | |
490d3d1b | 1152 | encoder->index = dev->mode_config.num_encoder++; |
f453ba04 | 1153 | |
e5748946 JN |
1154 | out_put: |
1155 | if (ret) | |
7c8f6d25 | 1156 | drm_mode_object_unregister(dev, &encoder->base); |
e5748946 JN |
1157 | |
1158 | out_unlock: | |
84849903 | 1159 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
1160 | |
1161 | return ret; | |
f453ba04 DA |
1162 | } |
1163 | EXPORT_SYMBOL(drm_encoder_init); | |
1164 | ||
c8e32cc1 DV |
1165 | /** |
1166 | * drm_encoder_cleanup - cleans up an initialised encoder | |
1167 | * @encoder: encoder to cleanup | |
1168 | * | |
1169 | * Cleans up the encoder but doesn't free the object. | |
1170 | */ | |
f453ba04 DA |
1171 | void drm_encoder_cleanup(struct drm_encoder *encoder) |
1172 | { | |
1173 | struct drm_device *dev = encoder->dev; | |
4dfd909f | 1174 | |
490d3d1b CW |
1175 | /* Note that the encoder_list is considered to be static; should we |
1176 | * remove the drm_encoder at runtime we would have to decrement all | |
1177 | * the indices on the drm_encoder after us in the encoder_list. | |
1178 | */ | |
1179 | ||
84849903 | 1180 | drm_modeset_lock_all(dev); |
7c8f6d25 | 1181 | drm_mode_object_unregister(dev, &encoder->base); |
e5748946 | 1182 | kfree(encoder->name); |
f453ba04 | 1183 | list_del(&encoder->head); |
6380c509 | 1184 | dev->mode_config.num_encoder--; |
84849903 | 1185 | drm_modeset_unlock_all(dev); |
a18c0af1 TR |
1186 | |
1187 | memset(encoder, 0, sizeof(*encoder)); | |
f453ba04 DA |
1188 | } |
1189 | EXPORT_SYMBOL(drm_encoder_cleanup); | |
1190 | ||
9f4c97a2 VS |
1191 | static unsigned int drm_num_planes(struct drm_device *dev) |
1192 | { | |
1193 | unsigned int num = 0; | |
1194 | struct drm_plane *tmp; | |
1195 | ||
1196 | drm_for_each_plane(tmp, dev) { | |
1197 | num++; | |
1198 | } | |
1199 | ||
1200 | return num; | |
1201 | } | |
1202 | ||
35f2c3ae | 1203 | /** |
dc415ff9 | 1204 | * drm_universal_plane_init - Initialize a new universal plane object |
35f2c3ae VS |
1205 | * @dev: DRM device |
1206 | * @plane: plane object to init | |
1207 | * @possible_crtcs: bitmask of possible CRTCs | |
1208 | * @funcs: callbacks for the new plane | |
1209 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1210 | * @format_count: number of elements in @formats | |
dc415ff9 | 1211 | * @type: type of plane (overlay, primary, cursor) |
b0b3b795 | 1212 | * @name: printf style format string for the plane name, or NULL for default name |
35f2c3ae | 1213 | * |
dc415ff9 | 1214 | * Initializes a plane object of type @type. |
35f2c3ae | 1215 | * |
c8e32cc1 | 1216 | * Returns: |
35f2c3ae VS |
1217 | * Zero on success, error code on failure. |
1218 | */ | |
dc415ff9 MR |
1219 | int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, |
1220 | unsigned long possible_crtcs, | |
1221 | const struct drm_plane_funcs *funcs, | |
45e3743a | 1222 | const uint32_t *formats, unsigned int format_count, |
b0b3b795 VS |
1223 | enum drm_plane_type type, |
1224 | const char *name, ...) | |
8cf5c917 | 1225 | { |
6b4959f4 | 1226 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
1227 | int ret; |
1228 | ||
6bfc56aa VS |
1229 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
1230 | if (ret) | |
baf698b0 | 1231 | return ret; |
6bfc56aa | 1232 | |
4d02e2de DV |
1233 | drm_modeset_lock_init(&plane->mutex); |
1234 | ||
4d93914a | 1235 | plane->base.properties = &plane->properties; |
8cf5c917 | 1236 | plane->dev = dev; |
8cf5c917 | 1237 | plane->funcs = funcs; |
2f6c5389 TR |
1238 | plane->format_types = kmalloc_array(format_count, sizeof(uint32_t), |
1239 | GFP_KERNEL); | |
8cf5c917 JB |
1240 | if (!plane->format_types) { |
1241 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); | |
7c8f6d25 | 1242 | drm_mode_object_unregister(dev, &plane->base); |
baf698b0 | 1243 | return -ENOMEM; |
8cf5c917 JB |
1244 | } |
1245 | ||
9f4c97a2 VS |
1246 | if (name) { |
1247 | va_list ap; | |
1248 | ||
1249 | va_start(ap, name); | |
1250 | plane->name = kvasprintf(GFP_KERNEL, name, ap); | |
1251 | va_end(ap); | |
1252 | } else { | |
1253 | plane->name = kasprintf(GFP_KERNEL, "plane-%d", | |
1254 | drm_num_planes(dev)); | |
1255 | } | |
1256 | if (!plane->name) { | |
1257 | kfree(plane->format_types); | |
7c8f6d25 | 1258 | drm_mode_object_unregister(dev, &plane->base); |
9f4c97a2 VS |
1259 | return -ENOMEM; |
1260 | } | |
1261 | ||
308e5bcb | 1262 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
8cf5c917 JB |
1263 | plane->format_count = format_count; |
1264 | plane->possible_crtcs = possible_crtcs; | |
dc415ff9 | 1265 | plane->type = type; |
8cf5c917 | 1266 | |
6b4959f4 | 1267 | list_add_tail(&plane->head, &config->plane_list); |
490d3d1b | 1268 | plane->index = config->num_total_plane++; |
dc415ff9 | 1269 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) |
6b4959f4 | 1270 | config->num_overlay_plane++; |
8cf5c917 | 1271 | |
9922ab5a | 1272 | drm_object_attach_property(&plane->base, |
6b4959f4 | 1273 | config->plane_type_property, |
9922ab5a RC |
1274 | plane->type); |
1275 | ||
6b4959f4 RC |
1276 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
1277 | drm_object_attach_property(&plane->base, config->prop_fb_id, 0); | |
1278 | drm_object_attach_property(&plane->base, config->prop_crtc_id, 0); | |
1279 | drm_object_attach_property(&plane->base, config->prop_crtc_x, 0); | |
1280 | drm_object_attach_property(&plane->base, config->prop_crtc_y, 0); | |
1281 | drm_object_attach_property(&plane->base, config->prop_crtc_w, 0); | |
1282 | drm_object_attach_property(&plane->base, config->prop_crtc_h, 0); | |
1283 | drm_object_attach_property(&plane->base, config->prop_src_x, 0); | |
1284 | drm_object_attach_property(&plane->base, config->prop_src_y, 0); | |
1285 | drm_object_attach_property(&plane->base, config->prop_src_w, 0); | |
1286 | drm_object_attach_property(&plane->base, config->prop_src_h, 0); | |
1287 | } | |
1288 | ||
baf698b0 | 1289 | return 0; |
8cf5c917 | 1290 | } |
dc415ff9 MR |
1291 | EXPORT_SYMBOL(drm_universal_plane_init); |
1292 | ||
1293 | /** | |
1294 | * drm_plane_init - Initialize a legacy plane | |
1295 | * @dev: DRM device | |
1296 | * @plane: plane object to init | |
1297 | * @possible_crtcs: bitmask of possible CRTCs | |
1298 | * @funcs: callbacks for the new plane | |
1299 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1300 | * @format_count: number of elements in @formats | |
1301 | * @is_primary: plane type (primary vs overlay) | |
1302 | * | |
1303 | * Legacy API to initialize a DRM plane. | |
1304 | * | |
1305 | * New drivers should call drm_universal_plane_init() instead. | |
1306 | * | |
1307 | * Returns: | |
1308 | * Zero on success, error code on failure. | |
1309 | */ | |
1310 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, | |
1311 | unsigned long possible_crtcs, | |
1312 | const struct drm_plane_funcs *funcs, | |
45e3743a | 1313 | const uint32_t *formats, unsigned int format_count, |
dc415ff9 MR |
1314 | bool is_primary) |
1315 | { | |
1316 | enum drm_plane_type type; | |
1317 | ||
1318 | type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; | |
1319 | return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, | |
b0b3b795 | 1320 | formats, format_count, type, NULL); |
dc415ff9 | 1321 | } |
8cf5c917 JB |
1322 | EXPORT_SYMBOL(drm_plane_init); |
1323 | ||
35f2c3ae VS |
1324 | /** |
1325 | * drm_plane_cleanup - Clean up the core plane usage | |
1326 | * @plane: plane to cleanup | |
1327 | * | |
1328 | * This function cleans up @plane and removes it from the DRM mode setting | |
1329 | * core. Note that the function does *not* free the plane structure itself, | |
1330 | * this is the responsibility of the caller. | |
1331 | */ | |
8cf5c917 JB |
1332 | void drm_plane_cleanup(struct drm_plane *plane) |
1333 | { | |
1334 | struct drm_device *dev = plane->dev; | |
1335 | ||
84849903 | 1336 | drm_modeset_lock_all(dev); |
8cf5c917 | 1337 | kfree(plane->format_types); |
7c8f6d25 | 1338 | drm_mode_object_unregister(dev, &plane->base); |
dc415ff9 MR |
1339 | |
1340 | BUG_ON(list_empty(&plane->head)); | |
1341 | ||
490d3d1b CW |
1342 | /* Note that the plane_list is considered to be static; should we |
1343 | * remove the drm_plane at runtime we would have to decrement all | |
1344 | * the indices on the drm_plane after us in the plane_list. | |
1345 | */ | |
1346 | ||
dc415ff9 MR |
1347 | list_del(&plane->head); |
1348 | dev->mode_config.num_total_plane--; | |
1349 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) | |
1350 | dev->mode_config.num_overlay_plane--; | |
84849903 | 1351 | drm_modeset_unlock_all(dev); |
3009c037 TR |
1352 | |
1353 | WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); | |
1354 | if (plane->state && plane->funcs->atomic_destroy_state) | |
1355 | plane->funcs->atomic_destroy_state(plane, plane->state); | |
a18c0af1 | 1356 | |
9f4c97a2 VS |
1357 | kfree(plane->name); |
1358 | ||
a18c0af1 | 1359 | memset(plane, 0, sizeof(*plane)); |
8cf5c917 JB |
1360 | } |
1361 | EXPORT_SYMBOL(drm_plane_cleanup); | |
1362 | ||
f81338a5 CK |
1363 | /** |
1364 | * drm_plane_from_index - find the registered plane at an index | |
1365 | * @dev: DRM device | |
1366 | * @idx: index of registered plane to find for | |
1367 | * | |
1368 | * Given a plane index, return the registered plane from DRM device's | |
1369 | * list of planes with matching index. | |
1370 | */ | |
1371 | struct drm_plane * | |
1372 | drm_plane_from_index(struct drm_device *dev, int idx) | |
1373 | { | |
1374 | struct drm_plane *plane; | |
f81338a5 | 1375 | |
490d3d1b CW |
1376 | drm_for_each_plane(plane, dev) |
1377 | if (idx == plane->index) | |
f81338a5 | 1378 | return plane; |
490d3d1b | 1379 | |
f81338a5 CK |
1380 | return NULL; |
1381 | } | |
1382 | EXPORT_SYMBOL(drm_plane_from_index); | |
1383 | ||
35f2c3ae VS |
1384 | /** |
1385 | * drm_plane_force_disable - Forcibly disable a plane | |
1386 | * @plane: plane to disable | |
1387 | * | |
1388 | * Forces the plane to be disabled. | |
1389 | * | |
1390 | * Used when the plane's current framebuffer is destroyed, | |
1391 | * and when restoring fbdev mode. | |
1392 | */ | |
9125e618 VS |
1393 | void drm_plane_force_disable(struct drm_plane *plane) |
1394 | { | |
1395 | int ret; | |
1396 | ||
3d30a59b | 1397 | if (!plane->fb) |
9125e618 VS |
1398 | return; |
1399 | ||
3d30a59b | 1400 | plane->old_fb = plane->fb; |
9125e618 | 1401 | ret = plane->funcs->disable_plane(plane); |
731cce48 | 1402 | if (ret) { |
9125e618 | 1403 | DRM_ERROR("failed to disable plane with busy fb\n"); |
3d30a59b | 1404 | plane->old_fb = NULL; |
731cce48 DV |
1405 | return; |
1406 | } | |
9125e618 | 1407 | /* disconnect the plane from the fb and crtc: */ |
220dd2bc | 1408 | drm_framebuffer_unreference(plane->old_fb); |
3d30a59b | 1409 | plane->old_fb = NULL; |
9125e618 VS |
1410 | plane->fb = NULL; |
1411 | plane->crtc = NULL; | |
1412 | } | |
1413 | EXPORT_SYMBOL(drm_plane_force_disable); | |
1414 | ||
6b4959f4 | 1415 | static int drm_mode_create_standard_properties(struct drm_device *dev) |
f453ba04 | 1416 | { |
356af0e1 | 1417 | struct drm_property *prop; |
f453ba04 DA |
1418 | |
1419 | /* | |
1420 | * Standard properties (apply to all connectors) | |
1421 | */ | |
356af0e1 | 1422 | prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | |
f453ba04 DA |
1423 | DRM_MODE_PROP_IMMUTABLE, |
1424 | "EDID", 0); | |
356af0e1 RC |
1425 | if (!prop) |
1426 | return -ENOMEM; | |
1427 | dev->mode_config.edid_property = prop; | |
f453ba04 | 1428 | |
356af0e1 | 1429 | prop = drm_property_create_enum(dev, 0, |
4a67d391 SH |
1430 | "DPMS", drm_dpms_enum_list, |
1431 | ARRAY_SIZE(drm_dpms_enum_list)); | |
356af0e1 RC |
1432 | if (!prop) |
1433 | return -ENOMEM; | |
1434 | dev->mode_config.dpms_property = prop; | |
6f134d7b | 1435 | |
356af0e1 RC |
1436 | prop = drm_property_create(dev, |
1437 | DRM_MODE_PROP_BLOB | | |
1438 | DRM_MODE_PROP_IMMUTABLE, | |
1439 | "PATH", 0); | |
1440 | if (!prop) | |
1441 | return -ENOMEM; | |
1442 | dev->mode_config.path_property = prop; | |
f453ba04 | 1443 | |
356af0e1 RC |
1444 | prop = drm_property_create(dev, |
1445 | DRM_MODE_PROP_BLOB | | |
1446 | DRM_MODE_PROP_IMMUTABLE, | |
1447 | "TILE", 0); | |
1448 | if (!prop) | |
1449 | return -ENOMEM; | |
1450 | dev->mode_config.tile_property = prop; | |
9922ab5a | 1451 | |
6b4959f4 | 1452 | prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
9922ab5a RC |
1453 | "type", drm_plane_type_enum_list, |
1454 | ARRAY_SIZE(drm_plane_type_enum_list)); | |
6b4959f4 RC |
1455 | if (!prop) |
1456 | return -ENOMEM; | |
1457 | dev->mode_config.plane_type_property = prop; | |
1458 | ||
1459 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1460 | "SRC_X", 0, UINT_MAX); | |
1461 | if (!prop) | |
1462 | return -ENOMEM; | |
1463 | dev->mode_config.prop_src_x = prop; | |
1464 | ||
1465 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1466 | "SRC_Y", 0, UINT_MAX); | |
1467 | if (!prop) | |
1468 | return -ENOMEM; | |
1469 | dev->mode_config.prop_src_y = prop; | |
1470 | ||
1471 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1472 | "SRC_W", 0, UINT_MAX); | |
1473 | if (!prop) | |
1474 | return -ENOMEM; | |
1475 | dev->mode_config.prop_src_w = prop; | |
1476 | ||
1477 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1478 | "SRC_H", 0, UINT_MAX); | |
1479 | if (!prop) | |
1480 | return -ENOMEM; | |
1481 | dev->mode_config.prop_src_h = prop; | |
1482 | ||
1483 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
1484 | "CRTC_X", INT_MIN, INT_MAX); | |
1485 | if (!prop) | |
1486 | return -ENOMEM; | |
1487 | dev->mode_config.prop_crtc_x = prop; | |
1488 | ||
1489 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
1490 | "CRTC_Y", INT_MIN, INT_MAX); | |
1491 | if (!prop) | |
1492 | return -ENOMEM; | |
1493 | dev->mode_config.prop_crtc_y = prop; | |
1494 | ||
1495 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1496 | "CRTC_W", 0, INT_MAX); | |
1497 | if (!prop) | |
1498 | return -ENOMEM; | |
1499 | dev->mode_config.prop_crtc_w = prop; | |
1500 | ||
1501 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1502 | "CRTC_H", 0, INT_MAX); | |
1503 | if (!prop) | |
1504 | return -ENOMEM; | |
1505 | dev->mode_config.prop_crtc_h = prop; | |
1506 | ||
1507 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, | |
1508 | "FB_ID", DRM_MODE_OBJECT_FB); | |
1509 | if (!prop) | |
1510 | return -ENOMEM; | |
1511 | dev->mode_config.prop_fb_id = prop; | |
1512 | ||
1513 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, | |
1514 | "CRTC_ID", DRM_MODE_OBJECT_CRTC); | |
1515 | if (!prop) | |
1516 | return -ENOMEM; | |
1517 | dev->mode_config.prop_crtc_id = prop; | |
9922ab5a | 1518 | |
eab3bbef DV |
1519 | prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, |
1520 | "ACTIVE"); | |
1521 | if (!prop) | |
1522 | return -ENOMEM; | |
1523 | dev->mode_config.prop_active = prop; | |
1524 | ||
955f3c33 DS |
1525 | prop = drm_property_create(dev, |
1526 | DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB, | |
1527 | "MODE_ID", 0); | |
1528 | if (!prop) | |
1529 | return -ENOMEM; | |
1530 | dev->mode_config.prop_mode_id = prop; | |
1531 | ||
5488dc16 LL |
1532 | prop = drm_property_create(dev, |
1533 | DRM_MODE_PROP_BLOB, | |
1534 | "DEGAMMA_LUT", 0); | |
1535 | if (!prop) | |
1536 | return -ENOMEM; | |
1537 | dev->mode_config.degamma_lut_property = prop; | |
1538 | ||
1539 | prop = drm_property_create_range(dev, | |
1540 | DRM_MODE_PROP_IMMUTABLE, | |
1541 | "DEGAMMA_LUT_SIZE", 0, UINT_MAX); | |
1542 | if (!prop) | |
1543 | return -ENOMEM; | |
1544 | dev->mode_config.degamma_lut_size_property = prop; | |
1545 | ||
1546 | prop = drm_property_create(dev, | |
1547 | DRM_MODE_PROP_BLOB, | |
1548 | "CTM", 0); | |
1549 | if (!prop) | |
1550 | return -ENOMEM; | |
1551 | dev->mode_config.ctm_property = prop; | |
1552 | ||
1553 | prop = drm_property_create(dev, | |
1554 | DRM_MODE_PROP_BLOB, | |
1555 | "GAMMA_LUT", 0); | |
1556 | if (!prop) | |
1557 | return -ENOMEM; | |
1558 | dev->mode_config.gamma_lut_property = prop; | |
1559 | ||
1560 | prop = drm_property_create_range(dev, | |
1561 | DRM_MODE_PROP_IMMUTABLE, | |
1562 | "GAMMA_LUT_SIZE", 0, UINT_MAX); | |
1563 | if (!prop) | |
1564 | return -ENOMEM; | |
1565 | dev->mode_config.gamma_lut_size_property = prop; | |
1566 | ||
9922ab5a RC |
1567 | return 0; |
1568 | } | |
1569 | ||
f453ba04 DA |
1570 | /** |
1571 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties | |
1572 | * @dev: DRM device | |
1573 | * | |
1574 | * Called by a driver the first time a DVI-I connector is made. | |
1575 | */ | |
1576 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) | |
1577 | { | |
1578 | struct drm_property *dvi_i_selector; | |
1579 | struct drm_property *dvi_i_subconnector; | |
f453ba04 DA |
1580 | |
1581 | if (dev->mode_config.dvi_i_select_subconnector_property) | |
1582 | return 0; | |
1583 | ||
1584 | dvi_i_selector = | |
4a67d391 | 1585 | drm_property_create_enum(dev, 0, |
f453ba04 | 1586 | "select subconnector", |
4a67d391 | 1587 | drm_dvi_i_select_enum_list, |
f453ba04 | 1588 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
f453ba04 DA |
1589 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
1590 | ||
4a67d391 | 1591 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
f453ba04 | 1592 | "subconnector", |
4a67d391 | 1593 | drm_dvi_i_subconnector_enum_list, |
f453ba04 | 1594 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
f453ba04 DA |
1595 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
1596 | ||
1597 | return 0; | |
1598 | } | |
1599 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); | |
1600 | ||
1601 | /** | |
1602 | * drm_create_tv_properties - create TV specific connector properties | |
1603 | * @dev: DRM device | |
1604 | * @num_modes: number of different TV formats (modes) supported | |
1605 | * @modes: array of pointers to strings containing name of each format | |
1606 | * | |
1607 | * Called by a driver's TV initialization routine, this function creates | |
1608 | * the TV specific connector properties for a given device. Caller is | |
1609 | * responsible for allocating a list of format names and passing them to | |
1610 | * this routine. | |
1611 | */ | |
2f763312 TR |
1612 | int drm_mode_create_tv_properties(struct drm_device *dev, |
1613 | unsigned int num_modes, | |
b7c914b3 | 1614 | const char * const modes[]) |
f453ba04 DA |
1615 | { |
1616 | struct drm_property *tv_selector; | |
1617 | struct drm_property *tv_subconnector; | |
2f763312 | 1618 | unsigned int i; |
f453ba04 DA |
1619 | |
1620 | if (dev->mode_config.tv_select_subconnector_property) | |
1621 | return 0; | |
1622 | ||
1623 | /* | |
1624 | * Basic connector properties | |
1625 | */ | |
4a67d391 | 1626 | tv_selector = drm_property_create_enum(dev, 0, |
f453ba04 | 1627 | "select subconnector", |
4a67d391 | 1628 | drm_tv_select_enum_list, |
f453ba04 | 1629 | ARRAY_SIZE(drm_tv_select_enum_list)); |
48aa1e74 IY |
1630 | if (!tv_selector) |
1631 | goto nomem; | |
1632 | ||
f453ba04 DA |
1633 | dev->mode_config.tv_select_subconnector_property = tv_selector; |
1634 | ||
1635 | tv_subconnector = | |
4a67d391 SH |
1636 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1637 | "subconnector", | |
1638 | drm_tv_subconnector_enum_list, | |
f453ba04 | 1639 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
48aa1e74 IY |
1640 | if (!tv_subconnector) |
1641 | goto nomem; | |
f453ba04 DA |
1642 | dev->mode_config.tv_subconnector_property = tv_subconnector; |
1643 | ||
1644 | /* | |
1645 | * Other, TV specific properties: margins & TV modes. | |
1646 | */ | |
1647 | dev->mode_config.tv_left_margin_property = | |
d9bc3c02 | 1648 | drm_property_create_range(dev, 0, "left margin", 0, 100); |
48aa1e74 IY |
1649 | if (!dev->mode_config.tv_left_margin_property) |
1650 | goto nomem; | |
f453ba04 DA |
1651 | |
1652 | dev->mode_config.tv_right_margin_property = | |
d9bc3c02 | 1653 | drm_property_create_range(dev, 0, "right margin", 0, 100); |
48aa1e74 IY |
1654 | if (!dev->mode_config.tv_right_margin_property) |
1655 | goto nomem; | |
f453ba04 DA |
1656 | |
1657 | dev->mode_config.tv_top_margin_property = | |
d9bc3c02 | 1658 | drm_property_create_range(dev, 0, "top margin", 0, 100); |
48aa1e74 IY |
1659 | if (!dev->mode_config.tv_top_margin_property) |
1660 | goto nomem; | |
f453ba04 DA |
1661 | |
1662 | dev->mode_config.tv_bottom_margin_property = | |
d9bc3c02 | 1663 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); |
48aa1e74 IY |
1664 | if (!dev->mode_config.tv_bottom_margin_property) |
1665 | goto nomem; | |
f453ba04 DA |
1666 | |
1667 | dev->mode_config.tv_mode_property = | |
1668 | drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
1669 | "mode", num_modes); | |
48aa1e74 IY |
1670 | if (!dev->mode_config.tv_mode_property) |
1671 | goto nomem; | |
1672 | ||
f453ba04 DA |
1673 | for (i = 0; i < num_modes; i++) |
1674 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, | |
1675 | i, modes[i]); | |
1676 | ||
b6b7902e | 1677 | dev->mode_config.tv_brightness_property = |
d9bc3c02 | 1678 | drm_property_create_range(dev, 0, "brightness", 0, 100); |
48aa1e74 IY |
1679 | if (!dev->mode_config.tv_brightness_property) |
1680 | goto nomem; | |
b6b7902e FJ |
1681 | |
1682 | dev->mode_config.tv_contrast_property = | |
d9bc3c02 | 1683 | drm_property_create_range(dev, 0, "contrast", 0, 100); |
48aa1e74 IY |
1684 | if (!dev->mode_config.tv_contrast_property) |
1685 | goto nomem; | |
b6b7902e FJ |
1686 | |
1687 | dev->mode_config.tv_flicker_reduction_property = | |
d9bc3c02 | 1688 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); |
48aa1e74 IY |
1689 | if (!dev->mode_config.tv_flicker_reduction_property) |
1690 | goto nomem; | |
b6b7902e | 1691 | |
a75f0236 | 1692 | dev->mode_config.tv_overscan_property = |
d9bc3c02 | 1693 | drm_property_create_range(dev, 0, "overscan", 0, 100); |
48aa1e74 IY |
1694 | if (!dev->mode_config.tv_overscan_property) |
1695 | goto nomem; | |
a75f0236 FJ |
1696 | |
1697 | dev->mode_config.tv_saturation_property = | |
d9bc3c02 | 1698 | drm_property_create_range(dev, 0, "saturation", 0, 100); |
48aa1e74 IY |
1699 | if (!dev->mode_config.tv_saturation_property) |
1700 | goto nomem; | |
a75f0236 FJ |
1701 | |
1702 | dev->mode_config.tv_hue_property = | |
d9bc3c02 | 1703 | drm_property_create_range(dev, 0, "hue", 0, 100); |
48aa1e74 IY |
1704 | if (!dev->mode_config.tv_hue_property) |
1705 | goto nomem; | |
a75f0236 | 1706 | |
f453ba04 | 1707 | return 0; |
48aa1e74 IY |
1708 | nomem: |
1709 | return -ENOMEM; | |
f453ba04 DA |
1710 | } |
1711 | EXPORT_SYMBOL(drm_mode_create_tv_properties); | |
1712 | ||
1713 | /** | |
1714 | * drm_mode_create_scaling_mode_property - create scaling mode property | |
1715 | * @dev: DRM device | |
1716 | * | |
1717 | * Called by a driver the first time it's needed, must be attached to desired | |
1718 | * connectors. | |
1719 | */ | |
1720 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) | |
1721 | { | |
1722 | struct drm_property *scaling_mode; | |
f453ba04 DA |
1723 | |
1724 | if (dev->mode_config.scaling_mode_property) | |
1725 | return 0; | |
1726 | ||
1727 | scaling_mode = | |
4a67d391 SH |
1728 | drm_property_create_enum(dev, 0, "scaling mode", |
1729 | drm_scaling_mode_enum_list, | |
f453ba04 | 1730 | ARRAY_SIZE(drm_scaling_mode_enum_list)); |
f453ba04 DA |
1731 | |
1732 | dev->mode_config.scaling_mode_property = scaling_mode; | |
1733 | ||
1734 | return 0; | |
1735 | } | |
1736 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); | |
1737 | ||
ff587e45 VK |
1738 | /** |
1739 | * drm_mode_create_aspect_ratio_property - create aspect ratio property | |
1740 | * @dev: DRM device | |
1741 | * | |
1742 | * Called by a driver the first time it's needed, must be attached to desired | |
1743 | * connectors. | |
1744 | * | |
1745 | * Returns: | |
1a498633 | 1746 | * Zero on success, negative errno on failure. |
ff587e45 VK |
1747 | */ |
1748 | int drm_mode_create_aspect_ratio_property(struct drm_device *dev) | |
1749 | { | |
1750 | if (dev->mode_config.aspect_ratio_property) | |
1751 | return 0; | |
1752 | ||
1753 | dev->mode_config.aspect_ratio_property = | |
1754 | drm_property_create_enum(dev, 0, "aspect ratio", | |
1755 | drm_aspect_ratio_enum_list, | |
1756 | ARRAY_SIZE(drm_aspect_ratio_enum_list)); | |
1757 | ||
1758 | if (dev->mode_config.aspect_ratio_property == NULL) | |
1759 | return -ENOMEM; | |
1760 | ||
1761 | return 0; | |
1762 | } | |
1763 | EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); | |
1764 | ||
884840aa JB |
1765 | /** |
1766 | * drm_mode_create_dirty_property - create dirty property | |
1767 | * @dev: DRM device | |
1768 | * | |
1769 | * Called by a driver the first time it's needed, must be attached to desired | |
1770 | * connectors. | |
1771 | */ | |
1772 | int drm_mode_create_dirty_info_property(struct drm_device *dev) | |
1773 | { | |
1774 | struct drm_property *dirty_info; | |
884840aa JB |
1775 | |
1776 | if (dev->mode_config.dirty_info_property) | |
1777 | return 0; | |
1778 | ||
1779 | dirty_info = | |
4a67d391 | 1780 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
884840aa | 1781 | "dirty", |
4a67d391 | 1782 | drm_dirty_info_enum_list, |
884840aa | 1783 | ARRAY_SIZE(drm_dirty_info_enum_list)); |
884840aa JB |
1784 | dev->mode_config.dirty_info_property = dirty_info; |
1785 | ||
1786 | return 0; | |
1787 | } | |
1788 | EXPORT_SYMBOL(drm_mode_create_dirty_info_property); | |
1789 | ||
5bb2bbf5 DA |
1790 | /** |
1791 | * drm_mode_create_suggested_offset_properties - create suggests offset properties | |
1792 | * @dev: DRM device | |
1793 | * | |
1794 | * Create the the suggested x/y offset property for connectors. | |
1795 | */ | |
1796 | int drm_mode_create_suggested_offset_properties(struct drm_device *dev) | |
1797 | { | |
1798 | if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property) | |
1799 | return 0; | |
1800 | ||
1801 | dev->mode_config.suggested_x_property = | |
1802 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff); | |
1803 | ||
1804 | dev->mode_config.suggested_y_property = | |
1805 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff); | |
1806 | ||
1807 | if (dev->mode_config.suggested_x_property == NULL || | |
1808 | dev->mode_config.suggested_y_property == NULL) | |
1809 | return -ENOMEM; | |
1810 | return 0; | |
1811 | } | |
1812 | EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties); | |
1813 | ||
f453ba04 DA |
1814 | /** |
1815 | * drm_mode_getresources - get graphics configuration | |
065a50ed DV |
1816 | * @dev: drm device for the ioctl |
1817 | * @data: data pointer for the ioctl | |
1818 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1819 | * |
f453ba04 DA |
1820 | * Construct a set of configuration description structures and return |
1821 | * them to the user, including CRTC, connector and framebuffer configuration. | |
1822 | * | |
1823 | * Called by the user via ioctl. | |
1824 | * | |
c8e32cc1 | 1825 | * Returns: |
1a498633 | 1826 | * Zero on success, negative errno on failure. |
f453ba04 DA |
1827 | */ |
1828 | int drm_mode_getresources(struct drm_device *dev, void *data, | |
1829 | struct drm_file *file_priv) | |
1830 | { | |
1831 | struct drm_mode_card_res *card_res = data; | |
1832 | struct list_head *lh; | |
1833 | struct drm_framebuffer *fb; | |
1834 | struct drm_connector *connector; | |
1835 | struct drm_crtc *crtc; | |
1836 | struct drm_encoder *encoder; | |
1837 | int ret = 0; | |
1838 | int connector_count = 0; | |
1839 | int crtc_count = 0; | |
1840 | int fb_count = 0; | |
1841 | int encoder_count = 0; | |
9c7060f7 | 1842 | int copied = 0; |
f453ba04 DA |
1843 | uint32_t __user *fb_id; |
1844 | uint32_t __user *crtc_id; | |
1845 | uint32_t __user *connector_id; | |
1846 | uint32_t __user *encoder_id; | |
f453ba04 | 1847 | |
fb3b06c8 DA |
1848 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1849 | return -EINVAL; | |
1850 | ||
f453ba04 | 1851 | |
4b096ac1 | 1852 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
1853 | /* |
1854 | * For the non-control nodes we need to limit the list of resources | |
1855 | * by IDs in the group list for this node | |
1856 | */ | |
1857 | list_for_each(lh, &file_priv->fbs) | |
1858 | fb_count++; | |
1859 | ||
4b096ac1 DV |
1860 | /* handle this in 4 parts */ |
1861 | /* FBs */ | |
1862 | if (card_res->count_fbs >= fb_count) { | |
1863 | copied = 0; | |
1864 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; | |
1865 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { | |
1866 | if (put_user(fb->base.id, fb_id + copied)) { | |
1867 | mutex_unlock(&file_priv->fbs_lock); | |
1868 | return -EFAULT; | |
1869 | } | |
1870 | copied++; | |
1871 | } | |
1872 | } | |
1873 | card_res->count_fbs = fb_count; | |
1874 | mutex_unlock(&file_priv->fbs_lock); | |
1875 | ||
fcf93f69 DV |
1876 | /* mode_config.mutex protects the connector list against e.g. DP MST |
1877 | * connector hot-adding. CRTC/Plane lists are invariant. */ | |
1878 | mutex_lock(&dev->mode_config.mutex); | |
9c7060f7 DV |
1879 | drm_for_each_crtc(crtc, dev) |
1880 | crtc_count++; | |
f453ba04 | 1881 | |
9c7060f7 DV |
1882 | drm_for_each_connector(connector, dev) |
1883 | connector_count++; | |
f453ba04 | 1884 | |
9c7060f7 DV |
1885 | drm_for_each_encoder(encoder, dev) |
1886 | encoder_count++; | |
f453ba04 DA |
1887 | |
1888 | card_res->max_height = dev->mode_config.max_height; | |
1889 | card_res->min_height = dev->mode_config.min_height; | |
1890 | card_res->max_width = dev->mode_config.max_width; | |
1891 | card_res->min_width = dev->mode_config.min_width; | |
1892 | ||
f453ba04 DA |
1893 | /* CRTCs */ |
1894 | if (card_res->count_crtcs >= crtc_count) { | |
1895 | copied = 0; | |
1896 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; | |
9c7060f7 | 1897 | drm_for_each_crtc(crtc, dev) { |
9c7060f7 DV |
1898 | if (put_user(crtc->base.id, crtc_id + copied)) { |
1899 | ret = -EFAULT; | |
1900 | goto out; | |
f453ba04 | 1901 | } |
9c7060f7 | 1902 | copied++; |
f453ba04 DA |
1903 | } |
1904 | } | |
1905 | card_res->count_crtcs = crtc_count; | |
1906 | ||
1907 | /* Encoders */ | |
1908 | if (card_res->count_encoders >= encoder_count) { | |
1909 | copied = 0; | |
1910 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; | |
9c7060f7 | 1911 | drm_for_each_encoder(encoder, dev) { |
9c7060f7 DV |
1912 | if (put_user(encoder->base.id, encoder_id + |
1913 | copied)) { | |
1914 | ret = -EFAULT; | |
1915 | goto out; | |
f453ba04 | 1916 | } |
9c7060f7 | 1917 | copied++; |
f453ba04 DA |
1918 | } |
1919 | } | |
1920 | card_res->count_encoders = encoder_count; | |
1921 | ||
1922 | /* Connectors */ | |
1923 | if (card_res->count_connectors >= connector_count) { | |
1924 | copied = 0; | |
1925 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; | |
9c7060f7 | 1926 | drm_for_each_connector(connector, dev) { |
9c7060f7 DV |
1927 | if (put_user(connector->base.id, |
1928 | connector_id + copied)) { | |
1929 | ret = -EFAULT; | |
1930 | goto out; | |
f453ba04 | 1931 | } |
9c7060f7 | 1932 | copied++; |
f453ba04 DA |
1933 | } |
1934 | } | |
1935 | card_res->count_connectors = connector_count; | |
1936 | ||
f453ba04 | 1937 | out: |
fcf93f69 | 1938 | mutex_unlock(&dev->mode_config.mutex); |
f453ba04 DA |
1939 | return ret; |
1940 | } | |
1941 | ||
1942 | /** | |
1943 | * drm_mode_getcrtc - get CRTC configuration | |
065a50ed DV |
1944 | * @dev: drm device for the ioctl |
1945 | * @data: data pointer for the ioctl | |
1946 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1947 | * |
f453ba04 DA |
1948 | * Construct a CRTC configuration structure to return to the user. |
1949 | * | |
1950 | * Called by the user via ioctl. | |
1951 | * | |
c8e32cc1 | 1952 | * Returns: |
1a498633 | 1953 | * Zero on success, negative errno on failure. |
f453ba04 DA |
1954 | */ |
1955 | int drm_mode_getcrtc(struct drm_device *dev, | |
1956 | void *data, struct drm_file *file_priv) | |
1957 | { | |
1958 | struct drm_mode_crtc *crtc_resp = data; | |
1959 | struct drm_crtc *crtc; | |
f453ba04 | 1960 | |
fb3b06c8 DA |
1961 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1962 | return -EINVAL; | |
1963 | ||
a2b34e22 | 1964 | crtc = drm_crtc_find(dev, crtc_resp->crtc_id); |
fcf93f69 DV |
1965 | if (!crtc) |
1966 | return -ENOENT; | |
f453ba04 | 1967 | |
fcf93f69 | 1968 | drm_modeset_lock_crtc(crtc, crtc->primary); |
f453ba04 | 1969 | crtc_resp->gamma_size = crtc->gamma_size; |
f4510a27 MR |
1970 | if (crtc->primary->fb) |
1971 | crtc_resp->fb_id = crtc->primary->fb->base.id; | |
f453ba04 DA |
1972 | else |
1973 | crtc_resp->fb_id = 0; | |
1974 | ||
31c946e8 DV |
1975 | if (crtc->state) { |
1976 | crtc_resp->x = crtc->primary->state->src_x >> 16; | |
1977 | crtc_resp->y = crtc->primary->state->src_y >> 16; | |
1978 | if (crtc->state->enable) { | |
934a8a89 | 1979 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode); |
31c946e8 | 1980 | crtc_resp->mode_valid = 1; |
f453ba04 | 1981 | |
31c946e8 DV |
1982 | } else { |
1983 | crtc_resp->mode_valid = 0; | |
1984 | } | |
f453ba04 | 1985 | } else { |
31c946e8 DV |
1986 | crtc_resp->x = crtc->x; |
1987 | crtc_resp->y = crtc->y; | |
1988 | if (crtc->enabled) { | |
934a8a89 | 1989 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode); |
31c946e8 DV |
1990 | crtc_resp->mode_valid = 1; |
1991 | ||
1992 | } else { | |
1993 | crtc_resp->mode_valid = 0; | |
1994 | } | |
f453ba04 | 1995 | } |
fcf93f69 | 1996 | drm_modeset_unlock_crtc(crtc); |
f453ba04 | 1997 | |
baf698b0 | 1998 | return 0; |
f453ba04 DA |
1999 | } |
2000 | ||
61d8e328 DL |
2001 | static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, |
2002 | const struct drm_file *file_priv) | |
2003 | { | |
2004 | /* | |
2005 | * If user-space hasn't configured the driver to expose the stereo 3D | |
2006 | * modes, don't expose them. | |
2007 | */ | |
2008 | if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) | |
2009 | return false; | |
2010 | ||
2011 | return true; | |
2012 | } | |
2013 | ||
abd69c55 DV |
2014 | static struct drm_encoder *drm_connector_get_encoder(struct drm_connector *connector) |
2015 | { | |
2016 | /* For atomic drivers only state objects are synchronously updated and | |
2017 | * protected by modeset locks, so check those first. */ | |
2018 | if (connector->state) | |
2019 | return connector->state->best_encoder; | |
2020 | return connector->encoder; | |
2021 | } | |
2022 | ||
95cbf110 | 2023 | /* helper for getconnector and getproperties ioctls */ |
88a48e29 | 2024 | static int get_properties(struct drm_mode_object *obj, bool atomic, |
95cbf110 RC |
2025 | uint32_t __user *prop_ptr, uint64_t __user *prop_values, |
2026 | uint32_t *arg_count_props) | |
2027 | { | |
88a48e29 RC |
2028 | int props_count; |
2029 | int i, ret, copied; | |
2030 | ||
2031 | props_count = obj->properties->count; | |
2032 | if (!atomic) | |
2033 | props_count -= obj->properties->atomic_count; | |
95cbf110 RC |
2034 | |
2035 | if ((*arg_count_props >= props_count) && props_count) { | |
88a48e29 | 2036 | for (i = 0, copied = 0; copied < props_count; i++) { |
95cbf110 RC |
2037 | struct drm_property *prop = obj->properties->properties[i]; |
2038 | uint64_t val; | |
2039 | ||
88a48e29 RC |
2040 | if ((prop->flags & DRM_MODE_PROP_ATOMIC) && !atomic) |
2041 | continue; | |
2042 | ||
95cbf110 RC |
2043 | ret = drm_object_property_get_value(obj, prop, &val); |
2044 | if (ret) | |
2045 | return ret; | |
2046 | ||
2047 | if (put_user(prop->base.id, prop_ptr + copied)) | |
2048 | return -EFAULT; | |
2049 | ||
2050 | if (put_user(val, prop_values + copied)) | |
2051 | return -EFAULT; | |
2052 | ||
2053 | copied++; | |
2054 | } | |
2055 | } | |
2056 | *arg_count_props = props_count; | |
2057 | ||
2058 | return 0; | |
2059 | } | |
2060 | ||
f453ba04 DA |
2061 | /** |
2062 | * drm_mode_getconnector - get connector configuration | |
065a50ed DV |
2063 | * @dev: drm device for the ioctl |
2064 | * @data: data pointer for the ioctl | |
2065 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2066 | * |
f453ba04 DA |
2067 | * Construct a connector configuration structure to return to the user. |
2068 | * | |
2069 | * Called by the user via ioctl. | |
2070 | * | |
c8e32cc1 | 2071 | * Returns: |
1a498633 | 2072 | * Zero on success, negative errno on failure. |
f453ba04 DA |
2073 | */ |
2074 | int drm_mode_getconnector(struct drm_device *dev, void *data, | |
2075 | struct drm_file *file_priv) | |
2076 | { | |
2077 | struct drm_mode_get_connector *out_resp = data; | |
f453ba04 | 2078 | struct drm_connector *connector; |
abd69c55 | 2079 | struct drm_encoder *encoder; |
f453ba04 DA |
2080 | struct drm_display_mode *mode; |
2081 | int mode_count = 0; | |
f453ba04 DA |
2082 | int encoders_count = 0; |
2083 | int ret = 0; | |
2084 | int copied = 0; | |
2085 | int i; | |
2086 | struct drm_mode_modeinfo u_mode; | |
2087 | struct drm_mode_modeinfo __user *mode_ptr; | |
f453ba04 DA |
2088 | uint32_t __user *encoder_ptr; |
2089 | ||
fb3b06c8 DA |
2090 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2091 | return -EINVAL; | |
2092 | ||
f453ba04 DA |
2093 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
2094 | ||
7b24056b | 2095 | mutex_lock(&dev->mode_config.mutex); |
f453ba04 | 2096 | |
b164d31f | 2097 | connector = drm_connector_lookup(dev, out_resp->connector_id); |
a2b34e22 | 2098 | if (!connector) { |
f27657f2 | 2099 | ret = -ENOENT; |
04bdf441 | 2100 | goto out_unlock; |
f453ba04 | 2101 | } |
f453ba04 | 2102 | |
01073b08 TR |
2103 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) |
2104 | if (connector->encoder_ids[i] != 0) | |
f453ba04 | 2105 | encoders_count++; |
f453ba04 DA |
2106 | |
2107 | if (out_resp->count_modes == 0) { | |
2108 | connector->funcs->fill_modes(connector, | |
2109 | dev->mode_config.max_width, | |
2110 | dev->mode_config.max_height); | |
2111 | } | |
2112 | ||
2113 | /* delayed so we get modes regardless of pre-fill_modes state */ | |
2114 | list_for_each_entry(mode, &connector->modes, head) | |
61d8e328 DL |
2115 | if (drm_mode_expose_to_userspace(mode, file_priv)) |
2116 | mode_count++; | |
f453ba04 DA |
2117 | |
2118 | out_resp->connector_id = connector->base.id; | |
2119 | out_resp->connector_type = connector->connector_type; | |
2120 | out_resp->connector_type_id = connector->connector_type_id; | |
2121 | out_resp->mm_width = connector->display_info.width_mm; | |
2122 | out_resp->mm_height = connector->display_info.height_mm; | |
2123 | out_resp->subpixel = connector->display_info.subpixel_order; | |
2124 | out_resp->connection = connector->status; | |
2caa80e7 DV |
2125 | |
2126 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); | |
abd69c55 DV |
2127 | encoder = drm_connector_get_encoder(connector); |
2128 | if (encoder) | |
2129 | out_resp->encoder_id = encoder->base.id; | |
f453ba04 DA |
2130 | else |
2131 | out_resp->encoder_id = 0; | |
2132 | ||
2133 | /* | |
2134 | * This ioctl is called twice, once to determine how much space is | |
2135 | * needed, and the 2nd time to fill it. | |
2136 | */ | |
2137 | if ((out_resp->count_modes >= mode_count) && mode_count) { | |
2138 | copied = 0; | |
81f6c7f8 | 2139 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; |
f453ba04 | 2140 | list_for_each_entry(mode, &connector->modes, head) { |
61d8e328 DL |
2141 | if (!drm_mode_expose_to_userspace(mode, file_priv)) |
2142 | continue; | |
2143 | ||
934a8a89 | 2144 | drm_mode_convert_to_umode(&u_mode, mode); |
f453ba04 DA |
2145 | if (copy_to_user(mode_ptr + copied, |
2146 | &u_mode, sizeof(u_mode))) { | |
2147 | ret = -EFAULT; | |
2148 | goto out; | |
2149 | } | |
2150 | copied++; | |
2151 | } | |
2152 | } | |
2153 | out_resp->count_modes = mode_count; | |
2154 | ||
88a48e29 | 2155 | ret = get_properties(&connector->base, file_priv->atomic, |
95cbf110 RC |
2156 | (uint32_t __user *)(unsigned long)(out_resp->props_ptr), |
2157 | (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr), | |
2158 | &out_resp->count_props); | |
2159 | if (ret) | |
2160 | goto out; | |
f453ba04 DA |
2161 | |
2162 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { | |
2163 | copied = 0; | |
81f6c7f8 | 2164 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); |
f453ba04 DA |
2165 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
2166 | if (connector->encoder_ids[i] != 0) { | |
2167 | if (put_user(connector->encoder_ids[i], | |
2168 | encoder_ptr + copied)) { | |
2169 | ret = -EFAULT; | |
2170 | goto out; | |
2171 | } | |
2172 | copied++; | |
2173 | } | |
2174 | } | |
2175 | } | |
2176 | out_resp->count_encoders = encoders_count; | |
2177 | ||
2178 | out: | |
ccfc0865 | 2179 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
04bdf441 | 2180 | |
b164d31f | 2181 | drm_connector_unreference(connector); |
04bdf441 | 2182 | out_unlock: |
7b24056b DV |
2183 | mutex_unlock(&dev->mode_config.mutex); |
2184 | ||
f453ba04 DA |
2185 | return ret; |
2186 | } | |
2187 | ||
abd69c55 DV |
2188 | static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder) |
2189 | { | |
2190 | struct drm_connector *connector; | |
2191 | struct drm_device *dev = encoder->dev; | |
2192 | bool uses_atomic = false; | |
2193 | ||
2194 | /* For atomic drivers only state objects are synchronously updated and | |
2195 | * protected by modeset locks, so check those first. */ | |
6295d607 | 2196 | drm_for_each_connector(connector, dev) { |
abd69c55 DV |
2197 | if (!connector->state) |
2198 | continue; | |
2199 | ||
2200 | uses_atomic = true; | |
2201 | ||
2202 | if (connector->state->best_encoder != encoder) | |
2203 | continue; | |
2204 | ||
2205 | return connector->state->crtc; | |
2206 | } | |
2207 | ||
2208 | /* Don't return stale data (e.g. pending async disable). */ | |
2209 | if (uses_atomic) | |
2210 | return NULL; | |
2211 | ||
2212 | return encoder->crtc; | |
2213 | } | |
2214 | ||
c8e32cc1 DV |
2215 | /** |
2216 | * drm_mode_getencoder - get encoder configuration | |
2217 | * @dev: drm device for the ioctl | |
2218 | * @data: data pointer for the ioctl | |
2219 | * @file_priv: drm file for the ioctl call | |
2220 | * | |
2221 | * Construct a encoder configuration structure to return to the user. | |
2222 | * | |
2223 | * Called by the user via ioctl. | |
2224 | * | |
2225 | * Returns: | |
1a498633 | 2226 | * Zero on success, negative errno on failure. |
c8e32cc1 | 2227 | */ |
f453ba04 DA |
2228 | int drm_mode_getencoder(struct drm_device *dev, void *data, |
2229 | struct drm_file *file_priv) | |
2230 | { | |
2231 | struct drm_mode_get_encoder *enc_resp = data; | |
f453ba04 | 2232 | struct drm_encoder *encoder; |
abd69c55 | 2233 | struct drm_crtc *crtc; |
f453ba04 | 2234 | |
fb3b06c8 DA |
2235 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2236 | return -EINVAL; | |
2237 | ||
a2b34e22 | 2238 | encoder = drm_encoder_find(dev, enc_resp->encoder_id); |
fcf93f69 DV |
2239 | if (!encoder) |
2240 | return -ENOENT; | |
f453ba04 | 2241 | |
fcf93f69 | 2242 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
abd69c55 DV |
2243 | crtc = drm_encoder_get_crtc(encoder); |
2244 | if (crtc) | |
2245 | enc_resp->crtc_id = crtc->base.id; | |
f453ba04 DA |
2246 | else |
2247 | enc_resp->crtc_id = 0; | |
fcf93f69 DV |
2248 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
2249 | ||
f453ba04 DA |
2250 | enc_resp->encoder_type = encoder->encoder_type; |
2251 | enc_resp->encoder_id = encoder->base.id; | |
2252 | enc_resp->possible_crtcs = encoder->possible_crtcs; | |
2253 | enc_resp->possible_clones = encoder->possible_clones; | |
2254 | ||
baf698b0 | 2255 | return 0; |
f453ba04 DA |
2256 | } |
2257 | ||
8cf5c917 | 2258 | /** |
c8e32cc1 | 2259 | * drm_mode_getplane_res - enumerate all plane resources |
8cf5c917 JB |
2260 | * @dev: DRM device |
2261 | * @data: ioctl data | |
2262 | * @file_priv: DRM file info | |
2263 | * | |
c8e32cc1 DV |
2264 | * Construct a list of plane ids to return to the user. |
2265 | * | |
2266 | * Called by the user via ioctl. | |
2267 | * | |
2268 | * Returns: | |
1a498633 | 2269 | * Zero on success, negative errno on failure. |
8cf5c917 JB |
2270 | */ |
2271 | int drm_mode_getplane_res(struct drm_device *dev, void *data, | |
c8e32cc1 | 2272 | struct drm_file *file_priv) |
8cf5c917 JB |
2273 | { |
2274 | struct drm_mode_get_plane_res *plane_resp = data; | |
2275 | struct drm_mode_config *config; | |
2276 | struct drm_plane *plane; | |
2277 | uint32_t __user *plane_ptr; | |
fcf93f69 | 2278 | int copied = 0; |
681e7ec7 | 2279 | unsigned num_planes; |
8cf5c917 JB |
2280 | |
2281 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2282 | return -EINVAL; | |
2283 | ||
8cf5c917 JB |
2284 | config = &dev->mode_config; |
2285 | ||
681e7ec7 MR |
2286 | if (file_priv->universal_planes) |
2287 | num_planes = config->num_total_plane; | |
2288 | else | |
2289 | num_planes = config->num_overlay_plane; | |
2290 | ||
8cf5c917 JB |
2291 | /* |
2292 | * This ioctl is called twice, once to determine how much space is | |
2293 | * needed, and the 2nd time to fill it. | |
2294 | */ | |
681e7ec7 MR |
2295 | if (num_planes && |
2296 | (plane_resp->count_planes >= num_planes)) { | |
81f6c7f8 | 2297 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
8cf5c917 | 2298 | |
fcf93f69 | 2299 | /* Plane lists are invariant, no locking needed. */ |
e4f62546 | 2300 | drm_for_each_plane(plane, dev) { |
681e7ec7 MR |
2301 | /* |
2302 | * Unless userspace set the 'universal planes' | |
2303 | * capability bit, only advertise overlays. | |
2304 | */ | |
2305 | if (plane->type != DRM_PLANE_TYPE_OVERLAY && | |
2306 | !file_priv->universal_planes) | |
e27dde3e MR |
2307 | continue; |
2308 | ||
fcf93f69 DV |
2309 | if (put_user(plane->base.id, plane_ptr + copied)) |
2310 | return -EFAULT; | |
8cf5c917 JB |
2311 | copied++; |
2312 | } | |
2313 | } | |
681e7ec7 | 2314 | plane_resp->count_planes = num_planes; |
8cf5c917 | 2315 | |
fcf93f69 | 2316 | return 0; |
8cf5c917 JB |
2317 | } |
2318 | ||
2319 | /** | |
c8e32cc1 | 2320 | * drm_mode_getplane - get plane configuration |
8cf5c917 JB |
2321 | * @dev: DRM device |
2322 | * @data: ioctl data | |
2323 | * @file_priv: DRM file info | |
2324 | * | |
c8e32cc1 DV |
2325 | * Construct a plane configuration structure to return to the user. |
2326 | * | |
2327 | * Called by the user via ioctl. | |
2328 | * | |
2329 | * Returns: | |
1a498633 | 2330 | * Zero on success, negative errno on failure. |
8cf5c917 JB |
2331 | */ |
2332 | int drm_mode_getplane(struct drm_device *dev, void *data, | |
c8e32cc1 | 2333 | struct drm_file *file_priv) |
8cf5c917 JB |
2334 | { |
2335 | struct drm_mode_get_plane *plane_resp = data; | |
8cf5c917 JB |
2336 | struct drm_plane *plane; |
2337 | uint32_t __user *format_ptr; | |
8cf5c917 JB |
2338 | |
2339 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2340 | return -EINVAL; | |
2341 | ||
a2b34e22 | 2342 | plane = drm_plane_find(dev, plane_resp->plane_id); |
fcf93f69 DV |
2343 | if (!plane) |
2344 | return -ENOENT; | |
8cf5c917 | 2345 | |
fcf93f69 | 2346 | drm_modeset_lock(&plane->mutex, NULL); |
8cf5c917 JB |
2347 | if (plane->crtc) |
2348 | plane_resp->crtc_id = plane->crtc->base.id; | |
2349 | else | |
2350 | plane_resp->crtc_id = 0; | |
2351 | ||
2352 | if (plane->fb) | |
2353 | plane_resp->fb_id = plane->fb->base.id; | |
2354 | else | |
2355 | plane_resp->fb_id = 0; | |
fcf93f69 | 2356 | drm_modeset_unlock(&plane->mutex); |
8cf5c917 JB |
2357 | |
2358 | plane_resp->plane_id = plane->base.id; | |
2359 | plane_resp->possible_crtcs = plane->possible_crtcs; | |
778ad903 | 2360 | plane_resp->gamma_size = 0; |
8cf5c917 JB |
2361 | |
2362 | /* | |
2363 | * This ioctl is called twice, once to determine how much space is | |
2364 | * needed, and the 2nd time to fill it. | |
2365 | */ | |
2366 | if (plane->format_count && | |
2367 | (plane_resp->count_format_types >= plane->format_count)) { | |
81f6c7f8 | 2368 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
8cf5c917 JB |
2369 | if (copy_to_user(format_ptr, |
2370 | plane->format_types, | |
2371 | sizeof(uint32_t) * plane->format_count)) { | |
fcf93f69 | 2372 | return -EFAULT; |
8cf5c917 JB |
2373 | } |
2374 | } | |
2375 | plane_resp->count_format_types = plane->format_count; | |
2376 | ||
baf698b0 | 2377 | return 0; |
8cf5c917 JB |
2378 | } |
2379 | ||
ead8610d LP |
2380 | /** |
2381 | * drm_plane_check_pixel_format - Check if the plane supports the pixel format | |
2382 | * @plane: plane to check for format support | |
2383 | * @format: the pixel format | |
2384 | * | |
2385 | * Returns: | |
2386 | * Zero of @plane has @format in its list of supported pixel formats, -EINVAL | |
2387 | * otherwise. | |
2388 | */ | |
2389 | int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format) | |
2390 | { | |
2391 | unsigned int i; | |
2392 | ||
2393 | for (i = 0; i < plane->format_count; i++) { | |
2394 | if (format == plane->format_types[i]) | |
2395 | return 0; | |
2396 | } | |
2397 | ||
2398 | return -EINVAL; | |
2399 | } | |
2400 | ||
ce8d9ecc VS |
2401 | static int check_src_coords(uint32_t src_x, uint32_t src_y, |
2402 | uint32_t src_w, uint32_t src_h, | |
2403 | const struct drm_framebuffer *fb) | |
2404 | { | |
2405 | unsigned int fb_width, fb_height; | |
2406 | ||
2407 | fb_width = fb->width << 16; | |
2408 | fb_height = fb->height << 16; | |
2409 | ||
2410 | /* Make sure source coordinates are inside the fb. */ | |
2411 | if (src_w > fb_width || | |
2412 | src_x > fb_width - src_w || | |
2413 | src_h > fb_height || | |
2414 | src_y > fb_height - src_h) { | |
2415 | DRM_DEBUG_KMS("Invalid source coordinates " | |
2416 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", | |
2417 | src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, | |
2418 | src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, | |
2419 | src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, | |
2420 | src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); | |
2421 | return -ENOSPC; | |
2422 | } | |
2423 | ||
2424 | return 0; | |
2425 | } | |
2426 | ||
b36552b3 MR |
2427 | /* |
2428 | * setplane_internal - setplane handler for internal callers | |
8cf5c917 | 2429 | * |
b36552b3 MR |
2430 | * Note that we assume an extra reference has already been taken on fb. If the |
2431 | * update fails, this reference will be dropped before return; if it succeeds, | |
2432 | * the previous framebuffer (if any) will be unreferenced instead. | |
c8e32cc1 | 2433 | * |
b36552b3 | 2434 | * src_{x,y,w,h} are provided in 16.16 fixed point format |
8cf5c917 | 2435 | */ |
f2b50c11 DV |
2436 | static int __setplane_internal(struct drm_plane *plane, |
2437 | struct drm_crtc *crtc, | |
2438 | struct drm_framebuffer *fb, | |
2439 | int32_t crtc_x, int32_t crtc_y, | |
2440 | uint32_t crtc_w, uint32_t crtc_h, | |
2441 | /* src_{x,y,w,h} values are 16.16 fixed point */ | |
2442 | uint32_t src_x, uint32_t src_y, | |
2443 | uint32_t src_w, uint32_t src_h) | |
8cf5c917 | 2444 | { |
8cf5c917 JB |
2445 | int ret = 0; |
2446 | ||
8cf5c917 | 2447 | /* No fb means shut it down */ |
b36552b3 | 2448 | if (!fb) { |
3d30a59b | 2449 | plane->old_fb = plane->fb; |
731cce48 DV |
2450 | ret = plane->funcs->disable_plane(plane); |
2451 | if (!ret) { | |
2452 | plane->crtc = NULL; | |
2453 | plane->fb = NULL; | |
2454 | } else { | |
3d30a59b | 2455 | plane->old_fb = NULL; |
731cce48 | 2456 | } |
8cf5c917 JB |
2457 | goto out; |
2458 | } | |
2459 | ||
7f994f3f MR |
2460 | /* Check whether this plane is usable on this CRTC */ |
2461 | if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { | |
2462 | DRM_DEBUG_KMS("Invalid crtc for plane\n"); | |
2463 | ret = -EINVAL; | |
2464 | goto out; | |
2465 | } | |
2466 | ||
62443be6 | 2467 | /* Check whether this plane supports the fb pixel format. */ |
ead8610d LP |
2468 | ret = drm_plane_check_pixel_format(plane, fb->pixel_format); |
2469 | if (ret) { | |
6ba6d03e VS |
2470 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
2471 | drm_get_format_name(fb->pixel_format)); | |
62443be6 VS |
2472 | goto out; |
2473 | } | |
2474 | ||
3968be94 MR |
2475 | /* Give drivers some help against integer overflows */ |
2476 | if (crtc_w > INT_MAX || | |
2477 | crtc_x > INT_MAX - (int32_t) crtc_w || | |
2478 | crtc_h > INT_MAX || | |
2479 | crtc_y > INT_MAX - (int32_t) crtc_h) { | |
2480 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", | |
2481 | crtc_w, crtc_h, crtc_x, crtc_y); | |
c390eed0 VS |
2482 | ret = -ERANGE; |
2483 | goto out; | |
3968be94 MR |
2484 | } |
2485 | ||
ce8d9ecc VS |
2486 | ret = check_src_coords(src_x, src_y, src_w, src_h, fb); |
2487 | if (ret) | |
42ef8789 | 2488 | goto out; |
42ef8789 | 2489 | |
3d30a59b | 2490 | plane->old_fb = plane->fb; |
8cf5c917 | 2491 | ret = plane->funcs->update_plane(plane, crtc, fb, |
b36552b3 MR |
2492 | crtc_x, crtc_y, crtc_w, crtc_h, |
2493 | src_x, src_y, src_w, src_h); | |
8cf5c917 JB |
2494 | if (!ret) { |
2495 | plane->crtc = crtc; | |
2496 | plane->fb = fb; | |
35f8badc | 2497 | fb = NULL; |
0fe27f06 | 2498 | } else { |
3d30a59b | 2499 | plane->old_fb = NULL; |
8cf5c917 JB |
2500 | } |
2501 | ||
2502 | out: | |
6c2a7532 DV |
2503 | if (fb) |
2504 | drm_framebuffer_unreference(fb); | |
3d30a59b DV |
2505 | if (plane->old_fb) |
2506 | drm_framebuffer_unreference(plane->old_fb); | |
2507 | plane->old_fb = NULL; | |
8cf5c917 JB |
2508 | |
2509 | return ret; | |
f2b50c11 | 2510 | } |
b36552b3 | 2511 | |
f2b50c11 DV |
2512 | static int setplane_internal(struct drm_plane *plane, |
2513 | struct drm_crtc *crtc, | |
2514 | struct drm_framebuffer *fb, | |
2515 | int32_t crtc_x, int32_t crtc_y, | |
2516 | uint32_t crtc_w, uint32_t crtc_h, | |
2517 | /* src_{x,y,w,h} values are 16.16 fixed point */ | |
2518 | uint32_t src_x, uint32_t src_y, | |
2519 | uint32_t src_w, uint32_t src_h) | |
2520 | { | |
2521 | int ret; | |
2522 | ||
2523 | drm_modeset_lock_all(plane->dev); | |
2524 | ret = __setplane_internal(plane, crtc, fb, | |
2525 | crtc_x, crtc_y, crtc_w, crtc_h, | |
2526 | src_x, src_y, src_w, src_h); | |
2527 | drm_modeset_unlock_all(plane->dev); | |
2528 | ||
2529 | return ret; | |
b36552b3 MR |
2530 | } |
2531 | ||
2532 | /** | |
2533 | * drm_mode_setplane - configure a plane's configuration | |
2534 | * @dev: DRM device | |
2535 | * @data: ioctl data* | |
2536 | * @file_priv: DRM file info | |
2537 | * | |
2538 | * Set plane configuration, including placement, fb, scaling, and other factors. | |
2539 | * Or pass a NULL fb to disable (planes may be disabled without providing a | |
2540 | * valid crtc). | |
2541 | * | |
2542 | * Returns: | |
1a498633 | 2543 | * Zero on success, negative errno on failure. |
b36552b3 MR |
2544 | */ |
2545 | int drm_mode_setplane(struct drm_device *dev, void *data, | |
2546 | struct drm_file *file_priv) | |
2547 | { | |
2548 | struct drm_mode_set_plane *plane_req = data; | |
b36552b3 MR |
2549 | struct drm_plane *plane; |
2550 | struct drm_crtc *crtc = NULL; | |
2551 | struct drm_framebuffer *fb = NULL; | |
2552 | ||
2553 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2554 | return -EINVAL; | |
2555 | ||
b36552b3 MR |
2556 | /* |
2557 | * First, find the plane, crtc, and fb objects. If not available, | |
2558 | * we don't bother to call the driver. | |
2559 | */ | |
933f622f RC |
2560 | plane = drm_plane_find(dev, plane_req->plane_id); |
2561 | if (!plane) { | |
b36552b3 MR |
2562 | DRM_DEBUG_KMS("Unknown plane ID %d\n", |
2563 | plane_req->plane_id); | |
2564 | return -ENOENT; | |
2565 | } | |
b36552b3 MR |
2566 | |
2567 | if (plane_req->fb_id) { | |
2568 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); | |
2569 | if (!fb) { | |
2570 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", | |
2571 | plane_req->fb_id); | |
2572 | return -ENOENT; | |
2573 | } | |
2574 | ||
933f622f RC |
2575 | crtc = drm_crtc_find(dev, plane_req->crtc_id); |
2576 | if (!crtc) { | |
b36552b3 MR |
2577 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", |
2578 | plane_req->crtc_id); | |
2579 | return -ENOENT; | |
2580 | } | |
b36552b3 MR |
2581 | } |
2582 | ||
161d0dc1 MR |
2583 | /* |
2584 | * setplane_internal will take care of deref'ing either the old or new | |
2585 | * framebuffer depending on success. | |
2586 | */ | |
17cfd91f | 2587 | return setplane_internal(plane, crtc, fb, |
b36552b3 MR |
2588 | plane_req->crtc_x, plane_req->crtc_y, |
2589 | plane_req->crtc_w, plane_req->crtc_h, | |
2590 | plane_req->src_x, plane_req->src_y, | |
2591 | plane_req->src_w, plane_req->src_h); | |
8cf5c917 JB |
2592 | } |
2593 | ||
2d13b679 DV |
2594 | /** |
2595 | * drm_mode_set_config_internal - helper to call ->set_config | |
2596 | * @set: modeset config to set | |
2597 | * | |
2598 | * This is a little helper to wrap internal calls to the ->set_config driver | |
2599 | * interface. The only thing it adds is correct refcounting dance. | |
4dfd909f | 2600 | * |
c8e32cc1 | 2601 | * Returns: |
1a498633 | 2602 | * Zero on success, negative errno on failure. |
2d13b679 DV |
2603 | */ |
2604 | int drm_mode_set_config_internal(struct drm_mode_set *set) | |
2605 | { | |
2606 | struct drm_crtc *crtc = set->crtc; | |
5cef29aa DV |
2607 | struct drm_framebuffer *fb; |
2608 | struct drm_crtc *tmp; | |
b0d12325 DV |
2609 | int ret; |
2610 | ||
5cef29aa DV |
2611 | /* |
2612 | * NOTE: ->set_config can also disable other crtcs (if we steal all | |
2613 | * connectors from it), hence we need to refcount the fbs across all | |
2614 | * crtcs. Atomic modeset will have saner semantics ... | |
2615 | */ | |
e4f62546 | 2616 | drm_for_each_crtc(tmp, crtc->dev) |
3d30a59b | 2617 | tmp->primary->old_fb = tmp->primary->fb; |
5cef29aa | 2618 | |
b0d12325 | 2619 | fb = set->fb; |
2d13b679 | 2620 | |
b0d12325 DV |
2621 | ret = crtc->funcs->set_config(set); |
2622 | if (ret == 0) { | |
e13161af | 2623 | crtc->primary->crtc = crtc; |
0fe27f06 | 2624 | crtc->primary->fb = fb; |
5cef29aa | 2625 | } |
cc85e121 | 2626 | |
e4f62546 | 2627 | drm_for_each_crtc(tmp, crtc->dev) { |
f4510a27 MR |
2628 | if (tmp->primary->fb) |
2629 | drm_framebuffer_reference(tmp->primary->fb); | |
3d30a59b DV |
2630 | if (tmp->primary->old_fb) |
2631 | drm_framebuffer_unreference(tmp->primary->old_fb); | |
2632 | tmp->primary->old_fb = NULL; | |
b0d12325 DV |
2633 | } |
2634 | ||
2635 | return ret; | |
2d13b679 DV |
2636 | } |
2637 | EXPORT_SYMBOL(drm_mode_set_config_internal); | |
2638 | ||
ecb7e16b GP |
2639 | /** |
2640 | * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode | |
2641 | * @mode: mode to query | |
2642 | * @hdisplay: hdisplay value to fill in | |
2643 | * @vdisplay: vdisplay value to fill in | |
2644 | * | |
2645 | * The vdisplay value will be doubled if the specified mode is a stereo mode of | |
2646 | * the appropriate layout. | |
2647 | */ | |
2648 | void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, | |
2649 | int *hdisplay, int *vdisplay) | |
2650 | { | |
2651 | struct drm_display_mode adjusted; | |
2652 | ||
2653 | drm_mode_copy(&adjusted, mode); | |
2654 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); | |
2655 | *hdisplay = adjusted.crtc_hdisplay; | |
2656 | *vdisplay = adjusted.crtc_vdisplay; | |
2657 | } | |
2658 | EXPORT_SYMBOL(drm_crtc_get_hv_timing); | |
2659 | ||
af93629d MR |
2660 | /** |
2661 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the | |
2662 | * CRTC viewport | |
2663 | * @crtc: CRTC that framebuffer will be displayed on | |
2664 | * @x: x panning | |
2665 | * @y: y panning | |
2666 | * @mode: mode that framebuffer will be displayed under | |
2667 | * @fb: framebuffer to check size of | |
c11e9283 | 2668 | */ |
af93629d MR |
2669 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
2670 | int x, int y, | |
2671 | const struct drm_display_mode *mode, | |
2672 | const struct drm_framebuffer *fb) | |
c11e9283 DL |
2673 | |
2674 | { | |
2675 | int hdisplay, vdisplay; | |
2676 | ||
ecb7e16b | 2677 | drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); |
a0c1bbb0 | 2678 | |
33e0be63 VS |
2679 | if (crtc->state && |
2680 | crtc->primary->state->rotation & (BIT(DRM_ROTATE_90) | | |
2681 | BIT(DRM_ROTATE_270))) | |
c11e9283 DL |
2682 | swap(hdisplay, vdisplay); |
2683 | ||
ce8d9ecc VS |
2684 | return check_src_coords(x << 16, y << 16, |
2685 | hdisplay << 16, vdisplay << 16, fb); | |
c11e9283 | 2686 | } |
af93629d | 2687 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
c11e9283 | 2688 | |
f453ba04 DA |
2689 | /** |
2690 | * drm_mode_setcrtc - set CRTC configuration | |
065a50ed DV |
2691 | * @dev: drm device for the ioctl |
2692 | * @data: data pointer for the ioctl | |
2693 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2694 | * |
f453ba04 DA |
2695 | * Build a new CRTC configuration based on user request. |
2696 | * | |
2697 | * Called by the user via ioctl. | |
2698 | * | |
c8e32cc1 | 2699 | * Returns: |
1a498633 | 2700 | * Zero on success, negative errno on failure. |
f453ba04 DA |
2701 | */ |
2702 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
2703 | struct drm_file *file_priv) | |
2704 | { | |
2705 | struct drm_mode_config *config = &dev->mode_config; | |
2706 | struct drm_mode_crtc *crtc_req = data; | |
6653cc8d | 2707 | struct drm_crtc *crtc; |
f453ba04 DA |
2708 | struct drm_connector **connector_set = NULL, *connector; |
2709 | struct drm_framebuffer *fb = NULL; | |
2710 | struct drm_display_mode *mode = NULL; | |
2711 | struct drm_mode_set set; | |
2712 | uint32_t __user *set_connectors_ptr; | |
4a1b0714 | 2713 | int ret; |
f453ba04 DA |
2714 | int i; |
2715 | ||
fb3b06c8 DA |
2716 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2717 | return -EINVAL; | |
2718 | ||
01447e9f ZJ |
2719 | /* |
2720 | * Universal plane src offsets are only 16.16, prevent havoc for | |
2721 | * drivers using universal plane code internally. | |
2722 | */ | |
2723 | if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000) | |
1d97e915 VS |
2724 | return -ERANGE; |
2725 | ||
84849903 | 2726 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
2727 | crtc = drm_crtc_find(dev, crtc_req->crtc_id); |
2728 | if (!crtc) { | |
58367ed6 | 2729 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
f27657f2 | 2730 | ret = -ENOENT; |
f453ba04 DA |
2731 | goto out; |
2732 | } | |
fa3ab4c2 | 2733 | DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name); |
f453ba04 DA |
2734 | |
2735 | if (crtc_req->mode_valid) { | |
2736 | /* If we have a mode we need a framebuffer. */ | |
2737 | /* If we pass -1, set the mode with the currently bound fb */ | |
2738 | if (crtc_req->fb_id == -1) { | |
f4510a27 | 2739 | if (!crtc->primary->fb) { |
6653cc8d VS |
2740 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
2741 | ret = -EINVAL; | |
2742 | goto out; | |
f453ba04 | 2743 | } |
f4510a27 | 2744 | fb = crtc->primary->fb; |
b0d12325 DV |
2745 | /* Make refcounting symmetric with the lookup path. */ |
2746 | drm_framebuffer_reference(fb); | |
f453ba04 | 2747 | } else { |
786b99ed DV |
2748 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
2749 | if (!fb) { | |
58367ed6 ZY |
2750 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
2751 | crtc_req->fb_id); | |
37c4e705 | 2752 | ret = -ENOENT; |
f453ba04 DA |
2753 | goto out; |
2754 | } | |
f453ba04 DA |
2755 | } |
2756 | ||
2757 | mode = drm_mode_create(dev); | |
ee34ab5b VS |
2758 | if (!mode) { |
2759 | ret = -ENOMEM; | |
2760 | goto out; | |
2761 | } | |
2762 | ||
934a8a89 | 2763 | ret = drm_mode_convert_umode(mode, &crtc_req->mode); |
90367bf6 VS |
2764 | if (ret) { |
2765 | DRM_DEBUG_KMS("Invalid mode\n"); | |
2766 | goto out; | |
2767 | } | |
2768 | ||
7eb5f302 LP |
2769 | /* |
2770 | * Check whether the primary plane supports the fb pixel format. | |
2771 | * Drivers not implementing the universal planes API use a | |
2772 | * default formats list provided by the DRM core which doesn't | |
2773 | * match real hardware capabilities. Skip the check in that | |
2774 | * case. | |
2775 | */ | |
2776 | if (!crtc->primary->format_default) { | |
2777 | ret = drm_plane_check_pixel_format(crtc->primary, | |
2778 | fb->pixel_format); | |
2779 | if (ret) { | |
2780 | DRM_DEBUG_KMS("Invalid pixel format %s\n", | |
2781 | drm_get_format_name(fb->pixel_format)); | |
2782 | goto out; | |
2783 | } | |
2784 | } | |
2785 | ||
c11e9283 DL |
2786 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
2787 | mode, fb); | |
2788 | if (ret) | |
5f61bb42 | 2789 | goto out; |
c11e9283 | 2790 | |
f453ba04 DA |
2791 | } |
2792 | ||
2793 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 2794 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
2795 | ret = -EINVAL; |
2796 | goto out; | |
2797 | } | |
2798 | ||
7781de74 | 2799 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
58367ed6 | 2800 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
2801 | crtc_req->count_connectors); |
2802 | ret = -EINVAL; | |
2803 | goto out; | |
2804 | } | |
2805 | ||
2806 | if (crtc_req->count_connectors > 0) { | |
2807 | u32 out_id; | |
2808 | ||
2809 | /* Avoid unbounded kernel memory allocation */ | |
2810 | if (crtc_req->count_connectors > config->num_connector) { | |
2811 | ret = -EINVAL; | |
2812 | goto out; | |
2813 | } | |
2814 | ||
2f6c5389 TR |
2815 | connector_set = kmalloc_array(crtc_req->count_connectors, |
2816 | sizeof(struct drm_connector *), | |
2817 | GFP_KERNEL); | |
f453ba04 DA |
2818 | if (!connector_set) { |
2819 | ret = -ENOMEM; | |
2820 | goto out; | |
2821 | } | |
2822 | ||
2823 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
b164d31f | 2824 | connector_set[i] = NULL; |
81f6c7f8 | 2825 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
f453ba04 DA |
2826 | if (get_user(out_id, &set_connectors_ptr[i])) { |
2827 | ret = -EFAULT; | |
2828 | goto out; | |
2829 | } | |
2830 | ||
b164d31f | 2831 | connector = drm_connector_lookup(dev, out_id); |
a2b34e22 | 2832 | if (!connector) { |
58367ed6 ZY |
2833 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
2834 | out_id); | |
f27657f2 | 2835 | ret = -ENOENT; |
f453ba04 DA |
2836 | goto out; |
2837 | } | |
9440106b JG |
2838 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
2839 | connector->base.id, | |
25933820 | 2840 | connector->name); |
f453ba04 DA |
2841 | |
2842 | connector_set[i] = connector; | |
2843 | } | |
2844 | } | |
2845 | ||
2846 | set.crtc = crtc; | |
2847 | set.x = crtc_req->x; | |
2848 | set.y = crtc_req->y; | |
2849 | set.mode = mode; | |
2850 | set.connectors = connector_set; | |
2851 | set.num_connectors = crtc_req->count_connectors; | |
5ef5f72f | 2852 | set.fb = fb; |
2d13b679 | 2853 | ret = drm_mode_set_config_internal(&set); |
f453ba04 DA |
2854 | |
2855 | out: | |
b0d12325 DV |
2856 | if (fb) |
2857 | drm_framebuffer_unreference(fb); | |
2858 | ||
b164d31f DA |
2859 | if (connector_set) { |
2860 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
2861 | if (connector_set[i]) | |
2862 | drm_connector_unreference(connector_set[i]); | |
2863 | } | |
2864 | } | |
f453ba04 | 2865 | kfree(connector_set); |
ee34ab5b | 2866 | drm_mode_destroy(dev, mode); |
84849903 | 2867 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2868 | return ret; |
2869 | } | |
2870 | ||
161d0dc1 MR |
2871 | /** |
2872 | * drm_mode_cursor_universal - translate legacy cursor ioctl call into a | |
2873 | * universal plane handler call | |
2874 | * @crtc: crtc to update cursor for | |
2875 | * @req: data pointer for the ioctl | |
2876 | * @file_priv: drm file for the ioctl call | |
2877 | * | |
2878 | * Legacy cursor ioctl's work directly with driver buffer handles. To | |
2879 | * translate legacy ioctl calls into universal plane handler calls, we need to | |
2880 | * wrap the native buffer handle in a drm_framebuffer. | |
2881 | * | |
2882 | * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB | |
2883 | * buffer with a pitch of 4*width; the universal plane interface should be used | |
2884 | * directly in cases where the hardware can support other buffer settings and | |
2885 | * userspace wants to make use of these capabilities. | |
2886 | * | |
2887 | * Returns: | |
1a498633 | 2888 | * Zero on success, negative errno on failure. |
161d0dc1 MR |
2889 | */ |
2890 | static int drm_mode_cursor_universal(struct drm_crtc *crtc, | |
2891 | struct drm_mode_cursor2 *req, | |
2892 | struct drm_file *file_priv) | |
2893 | { | |
2894 | struct drm_device *dev = crtc->dev; | |
2895 | struct drm_framebuffer *fb = NULL; | |
2896 | struct drm_mode_fb_cmd2 fbreq = { | |
2897 | .width = req->width, | |
2898 | .height = req->height, | |
2899 | .pixel_format = DRM_FORMAT_ARGB8888, | |
2900 | .pitches = { req->width * 4 }, | |
2901 | .handles = { req->handle }, | |
2902 | }; | |
2903 | int32_t crtc_x, crtc_y; | |
2904 | uint32_t crtc_w = 0, crtc_h = 0; | |
2905 | uint32_t src_w = 0, src_h = 0; | |
2906 | int ret = 0; | |
2907 | ||
2908 | BUG_ON(!crtc->cursor); | |
f2b50c11 | 2909 | WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL); |
161d0dc1 MR |
2910 | |
2911 | /* | |
2912 | * Obtain fb we'll be using (either new or existing) and take an extra | |
2913 | * reference to it if fb != null. setplane will take care of dropping | |
2914 | * the reference if the plane update fails. | |
2915 | */ | |
2916 | if (req->flags & DRM_MODE_CURSOR_BO) { | |
2917 | if (req->handle) { | |
9a6f5130 | 2918 | fb = internal_framebuffer_create(dev, &fbreq, file_priv); |
161d0dc1 MR |
2919 | if (IS_ERR(fb)) { |
2920 | DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n"); | |
2921 | return PTR_ERR(fb); | |
2922 | } | |
dd546591 GH |
2923 | fb->hot_x = req->hot_x; |
2924 | fb->hot_y = req->hot_y; | |
161d0dc1 MR |
2925 | } else { |
2926 | fb = NULL; | |
2927 | } | |
2928 | } else { | |
161d0dc1 MR |
2929 | fb = crtc->cursor->fb; |
2930 | if (fb) | |
2931 | drm_framebuffer_reference(fb); | |
161d0dc1 MR |
2932 | } |
2933 | ||
2934 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
2935 | crtc_x = req->x; | |
2936 | crtc_y = req->y; | |
2937 | } else { | |
2938 | crtc_x = crtc->cursor_x; | |
2939 | crtc_y = crtc->cursor_y; | |
2940 | } | |
2941 | ||
2942 | if (fb) { | |
2943 | crtc_w = fb->width; | |
2944 | crtc_h = fb->height; | |
2945 | src_w = fb->width << 16; | |
2946 | src_h = fb->height << 16; | |
2947 | } | |
2948 | ||
2949 | /* | |
2950 | * setplane_internal will take care of deref'ing either the old or new | |
2951 | * framebuffer depending on success. | |
2952 | */ | |
f2b50c11 | 2953 | ret = __setplane_internal(crtc->cursor, crtc, fb, |
161d0dc1 MR |
2954 | crtc_x, crtc_y, crtc_w, crtc_h, |
2955 | 0, 0, src_w, src_h); | |
2956 | ||
2957 | /* Update successful; save new cursor position, if necessary */ | |
2958 | if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) { | |
2959 | crtc->cursor_x = req->x; | |
2960 | crtc->cursor_y = req->y; | |
2961 | } | |
2962 | ||
2963 | return ret; | |
2964 | } | |
2965 | ||
4c813d4d DA |
2966 | static int drm_mode_cursor_common(struct drm_device *dev, |
2967 | struct drm_mode_cursor2 *req, | |
2968 | struct drm_file *file_priv) | |
f453ba04 | 2969 | { |
f453ba04 DA |
2970 | struct drm_crtc *crtc; |
2971 | int ret = 0; | |
2972 | ||
fb3b06c8 DA |
2973 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2974 | return -EINVAL; | |
2975 | ||
7c4eaca4 | 2976 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
f453ba04 | 2977 | return -EINVAL; |
f453ba04 | 2978 | |
a2b34e22 RC |
2979 | crtc = drm_crtc_find(dev, req->crtc_id); |
2980 | if (!crtc) { | |
58367ed6 | 2981 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
f27657f2 | 2982 | return -ENOENT; |
f453ba04 | 2983 | } |
f453ba04 | 2984 | |
161d0dc1 MR |
2985 | /* |
2986 | * If this crtc has a universal cursor plane, call that plane's update | |
2987 | * handler rather than using legacy cursor handlers. | |
2988 | */ | |
4d02e2de | 2989 | drm_modeset_lock_crtc(crtc, crtc->cursor); |
f2b50c11 DV |
2990 | if (crtc->cursor) { |
2991 | ret = drm_mode_cursor_universal(crtc, req, file_priv); | |
2992 | goto out; | |
2993 | } | |
2994 | ||
f453ba04 | 2995 | if (req->flags & DRM_MODE_CURSOR_BO) { |
4c813d4d | 2996 | if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { |
f453ba04 DA |
2997 | ret = -ENXIO; |
2998 | goto out; | |
2999 | } | |
3000 | /* Turns off the cursor if handle is 0 */ | |
4c813d4d DA |
3001 | if (crtc->funcs->cursor_set2) |
3002 | ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, | |
3003 | req->width, req->height, req->hot_x, req->hot_y); | |
3004 | else | |
3005 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, | |
3006 | req->width, req->height); | |
f453ba04 DA |
3007 | } |
3008 | ||
3009 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
3010 | if (crtc->funcs->cursor_move) { | |
3011 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); | |
3012 | } else { | |
f453ba04 DA |
3013 | ret = -EFAULT; |
3014 | goto out; | |
3015 | } | |
3016 | } | |
3017 | out: | |
d059f652 | 3018 | drm_modeset_unlock_crtc(crtc); |
dac35663 | 3019 | |
f453ba04 | 3020 | return ret; |
4c813d4d DA |
3021 | |
3022 | } | |
c8e32cc1 DV |
3023 | |
3024 | ||
3025 | /** | |
3026 | * drm_mode_cursor_ioctl - set CRTC's cursor configuration | |
3027 | * @dev: drm device for the ioctl | |
3028 | * @data: data pointer for the ioctl | |
3029 | * @file_priv: drm file for the ioctl call | |
3030 | * | |
3031 | * Set the cursor configuration based on user request. | |
3032 | * | |
3033 | * Called by the user via ioctl. | |
3034 | * | |
3035 | * Returns: | |
1a498633 | 3036 | * Zero on success, negative errno on failure. |
c8e32cc1 | 3037 | */ |
4c813d4d | 3038 | int drm_mode_cursor_ioctl(struct drm_device *dev, |
c8e32cc1 | 3039 | void *data, struct drm_file *file_priv) |
4c813d4d DA |
3040 | { |
3041 | struct drm_mode_cursor *req = data; | |
3042 | struct drm_mode_cursor2 new_req; | |
3043 | ||
3044 | memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); | |
3045 | new_req.hot_x = new_req.hot_y = 0; | |
3046 | ||
3047 | return drm_mode_cursor_common(dev, &new_req, file_priv); | |
3048 | } | |
3049 | ||
c8e32cc1 DV |
3050 | /** |
3051 | * drm_mode_cursor2_ioctl - set CRTC's cursor configuration | |
3052 | * @dev: drm device for the ioctl | |
3053 | * @data: data pointer for the ioctl | |
3054 | * @file_priv: drm file for the ioctl call | |
3055 | * | |
3056 | * Set the cursor configuration based on user request. This implements the 2nd | |
3057 | * version of the cursor ioctl, which allows userspace to additionally specify | |
3058 | * the hotspot of the pointer. | |
3059 | * | |
3060 | * Called by the user via ioctl. | |
3061 | * | |
3062 | * Returns: | |
1a498633 | 3063 | * Zero on success, negative errno on failure. |
c8e32cc1 | 3064 | */ |
4c813d4d DA |
3065 | int drm_mode_cursor2_ioctl(struct drm_device *dev, |
3066 | void *data, struct drm_file *file_priv) | |
3067 | { | |
3068 | struct drm_mode_cursor2 *req = data; | |
4dfd909f | 3069 | |
4c813d4d | 3070 | return drm_mode_cursor_common(dev, req, file_priv); |
f453ba04 DA |
3071 | } |
3072 | ||
c8e32cc1 DV |
3073 | /** |
3074 | * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description | |
3075 | * @bpp: bits per pixels | |
3076 | * @depth: bit depth per pixel | |
3077 | * | |
3078 | * Computes a drm fourcc pixel format code for the given @bpp/@depth values. | |
3079 | * Useful in fbdev emulation code, since that deals in those values. | |
3080 | */ | |
308e5bcb JB |
3081 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) |
3082 | { | |
3083 | uint32_t fmt; | |
3084 | ||
3085 | switch (bpp) { | |
3086 | case 8: | |
d84f031b | 3087 | fmt = DRM_FORMAT_C8; |
308e5bcb JB |
3088 | break; |
3089 | case 16: | |
3090 | if (depth == 15) | |
04b3924d | 3091 | fmt = DRM_FORMAT_XRGB1555; |
308e5bcb | 3092 | else |
04b3924d | 3093 | fmt = DRM_FORMAT_RGB565; |
308e5bcb JB |
3094 | break; |
3095 | case 24: | |
04b3924d | 3096 | fmt = DRM_FORMAT_RGB888; |
308e5bcb JB |
3097 | break; |
3098 | case 32: | |
3099 | if (depth == 24) | |
04b3924d | 3100 | fmt = DRM_FORMAT_XRGB8888; |
308e5bcb | 3101 | else if (depth == 30) |
04b3924d | 3102 | fmt = DRM_FORMAT_XRGB2101010; |
308e5bcb | 3103 | else |
04b3924d | 3104 | fmt = DRM_FORMAT_ARGB8888; |
308e5bcb JB |
3105 | break; |
3106 | default: | |
04b3924d VS |
3107 | DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); |
3108 | fmt = DRM_FORMAT_XRGB8888; | |
308e5bcb JB |
3109 | break; |
3110 | } | |
3111 | ||
3112 | return fmt; | |
3113 | } | |
3114 | EXPORT_SYMBOL(drm_mode_legacy_fb_format); | |
3115 | ||
f453ba04 DA |
3116 | /** |
3117 | * drm_mode_addfb - add an FB to the graphics configuration | |
065a50ed DV |
3118 | * @dev: drm device for the ioctl |
3119 | * @data: data pointer for the ioctl | |
3120 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3121 | * |
c8e32cc1 | 3122 | * Add a new FB to the specified CRTC, given a user request. This is the |
209f5527 | 3123 | * original addfb ioctl which only supported RGB formats. |
f453ba04 DA |
3124 | * |
3125 | * Called by the user via ioctl. | |
3126 | * | |
c8e32cc1 | 3127 | * Returns: |
1a498633 | 3128 | * Zero on success, negative errno on failure. |
f453ba04 DA |
3129 | */ |
3130 | int drm_mode_addfb(struct drm_device *dev, | |
3131 | void *data, struct drm_file *file_priv) | |
3132 | { | |
308e5bcb JB |
3133 | struct drm_mode_fb_cmd *or = data; |
3134 | struct drm_mode_fb_cmd2 r = {}; | |
228f2cb3 | 3135 | int ret; |
308e5bcb | 3136 | |
228f2cb3 | 3137 | /* convert to new format and call new ioctl */ |
308e5bcb JB |
3138 | r.fb_id = or->fb_id; |
3139 | r.width = or->width; | |
3140 | r.height = or->height; | |
3141 | r.pitches[0] = or->pitch; | |
3142 | r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); | |
3143 | r.handles[0] = or->handle; | |
3144 | ||
228f2cb3 CE |
3145 | ret = drm_mode_addfb2(dev, &r, file_priv); |
3146 | if (ret) | |
3147 | return ret; | |
308e5bcb | 3148 | |
228f2cb3 | 3149 | or->fb_id = r.fb_id; |
4b096ac1 | 3150 | |
baf698b0 | 3151 | return 0; |
308e5bcb JB |
3152 | } |
3153 | ||
cff91b62 | 3154 | static int format_check(const struct drm_mode_fb_cmd2 *r) |
935b5977 VS |
3155 | { |
3156 | uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; | |
3157 | ||
3158 | switch (format) { | |
3159 | case DRM_FORMAT_C8: | |
3160 | case DRM_FORMAT_RGB332: | |
3161 | case DRM_FORMAT_BGR233: | |
3162 | case DRM_FORMAT_XRGB4444: | |
3163 | case DRM_FORMAT_XBGR4444: | |
3164 | case DRM_FORMAT_RGBX4444: | |
3165 | case DRM_FORMAT_BGRX4444: | |
3166 | case DRM_FORMAT_ARGB4444: | |
3167 | case DRM_FORMAT_ABGR4444: | |
3168 | case DRM_FORMAT_RGBA4444: | |
3169 | case DRM_FORMAT_BGRA4444: | |
3170 | case DRM_FORMAT_XRGB1555: | |
3171 | case DRM_FORMAT_XBGR1555: | |
3172 | case DRM_FORMAT_RGBX5551: | |
3173 | case DRM_FORMAT_BGRX5551: | |
3174 | case DRM_FORMAT_ARGB1555: | |
3175 | case DRM_FORMAT_ABGR1555: | |
3176 | case DRM_FORMAT_RGBA5551: | |
3177 | case DRM_FORMAT_BGRA5551: | |
3178 | case DRM_FORMAT_RGB565: | |
3179 | case DRM_FORMAT_BGR565: | |
3180 | case DRM_FORMAT_RGB888: | |
3181 | case DRM_FORMAT_BGR888: | |
3182 | case DRM_FORMAT_XRGB8888: | |
3183 | case DRM_FORMAT_XBGR8888: | |
3184 | case DRM_FORMAT_RGBX8888: | |
3185 | case DRM_FORMAT_BGRX8888: | |
3186 | case DRM_FORMAT_ARGB8888: | |
3187 | case DRM_FORMAT_ABGR8888: | |
3188 | case DRM_FORMAT_RGBA8888: | |
3189 | case DRM_FORMAT_BGRA8888: | |
3190 | case DRM_FORMAT_XRGB2101010: | |
3191 | case DRM_FORMAT_XBGR2101010: | |
3192 | case DRM_FORMAT_RGBX1010102: | |
3193 | case DRM_FORMAT_BGRX1010102: | |
3194 | case DRM_FORMAT_ARGB2101010: | |
3195 | case DRM_FORMAT_ABGR2101010: | |
3196 | case DRM_FORMAT_RGBA1010102: | |
3197 | case DRM_FORMAT_BGRA1010102: | |
3198 | case DRM_FORMAT_YUYV: | |
3199 | case DRM_FORMAT_YVYU: | |
3200 | case DRM_FORMAT_UYVY: | |
3201 | case DRM_FORMAT_VYUY: | |
3202 | case DRM_FORMAT_AYUV: | |
3203 | case DRM_FORMAT_NV12: | |
3204 | case DRM_FORMAT_NV21: | |
3205 | case DRM_FORMAT_NV16: | |
3206 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
3207 | case DRM_FORMAT_NV24: |
3208 | case DRM_FORMAT_NV42: | |
935b5977 VS |
3209 | case DRM_FORMAT_YUV410: |
3210 | case DRM_FORMAT_YVU410: | |
3211 | case DRM_FORMAT_YUV411: | |
3212 | case DRM_FORMAT_YVU411: | |
3213 | case DRM_FORMAT_YUV420: | |
3214 | case DRM_FORMAT_YVU420: | |
3215 | case DRM_FORMAT_YUV422: | |
3216 | case DRM_FORMAT_YVU422: | |
3217 | case DRM_FORMAT_YUV444: | |
3218 | case DRM_FORMAT_YVU444: | |
3219 | return 0; | |
3220 | default: | |
23c453a4 VS |
3221 | DRM_DEBUG_KMS("invalid pixel format %s\n", |
3222 | drm_get_format_name(r->pixel_format)); | |
935b5977 VS |
3223 | return -EINVAL; |
3224 | } | |
3225 | } | |
3226 | ||
cff91b62 | 3227 | static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) |
d1b45d5f VS |
3228 | { |
3229 | int ret, hsub, vsub, num_planes, i; | |
3230 | ||
3231 | ret = format_check(r); | |
3232 | if (ret) { | |
6ba6d03e VS |
3233 | DRM_DEBUG_KMS("bad framebuffer format %s\n", |
3234 | drm_get_format_name(r->pixel_format)); | |
d1b45d5f VS |
3235 | return ret; |
3236 | } | |
3237 | ||
3238 | hsub = drm_format_horz_chroma_subsampling(r->pixel_format); | |
3239 | vsub = drm_format_vert_chroma_subsampling(r->pixel_format); | |
3240 | num_planes = drm_format_num_planes(r->pixel_format); | |
3241 | ||
3242 | if (r->width == 0 || r->width % hsub) { | |
209f5527 | 3243 | DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width); |
d1b45d5f VS |
3244 | return -EINVAL; |
3245 | } | |
3246 | ||
3247 | if (r->height == 0 || r->height % vsub) { | |
1aa1b11c | 3248 | DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); |
d1b45d5f VS |
3249 | return -EINVAL; |
3250 | } | |
3251 | ||
3252 | for (i = 0; i < num_planes; i++) { | |
3253 | unsigned int width = r->width / (i != 0 ? hsub : 1); | |
b180b5d1 VS |
3254 | unsigned int height = r->height / (i != 0 ? vsub : 1); |
3255 | unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); | |
d1b45d5f VS |
3256 | |
3257 | if (!r->handles[i]) { | |
1aa1b11c | 3258 | DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); |
d1b45d5f VS |
3259 | return -EINVAL; |
3260 | } | |
3261 | ||
b180b5d1 VS |
3262 | if ((uint64_t) width * cpp > UINT_MAX) |
3263 | return -ERANGE; | |
3264 | ||
3265 | if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) | |
3266 | return -ERANGE; | |
3267 | ||
3268 | if (r->pitches[i] < width * cpp) { | |
1aa1b11c | 3269 | DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); |
d1b45d5f VS |
3270 | return -EINVAL; |
3271 | } | |
e3eb3250 RC |
3272 | |
3273 | if (r->modifier[i] && !(r->flags & DRM_MODE_FB_MODIFIERS)) { | |
3274 | DRM_DEBUG_KMS("bad fb modifier %llu for plane %d\n", | |
3275 | r->modifier[i], i); | |
3276 | return -EINVAL; | |
3277 | } | |
570655b0 RC |
3278 | |
3279 | /* modifier specific checks: */ | |
3280 | switch (r->modifier[i]) { | |
3281 | case DRM_FORMAT_MOD_SAMSUNG_64_32_TILE: | |
3282 | /* NOTE: the pitch restriction may be lifted later if it turns | |
3283 | * out that no hw has this restriction: | |
3284 | */ | |
3285 | if (r->pixel_format != DRM_FORMAT_NV12 || | |
3286 | width % 128 || height % 32 || | |
3287 | r->pitches[i] % 128) { | |
3288 | DRM_DEBUG_KMS("bad modifier data for plane %d\n", i); | |
3289 | return -EINVAL; | |
3290 | } | |
3291 | break; | |
3292 | ||
3293 | default: | |
3294 | break; | |
3295 | } | |
d1b45d5f VS |
3296 | } |
3297 | ||
bbe16a40 DV |
3298 | for (i = num_planes; i < 4; i++) { |
3299 | if (r->modifier[i]) { | |
3300 | DRM_DEBUG_KMS("non-zero modifier for unused plane %d\n", i); | |
3301 | return -EINVAL; | |
3302 | } | |
3303 | ||
3304 | /* Pre-FB_MODIFIERS userspace didn't clear the structs properly. */ | |
3305 | if (!(r->flags & DRM_MODE_FB_MODIFIERS)) | |
3306 | continue; | |
3307 | ||
3308 | if (r->handles[i]) { | |
3309 | DRM_DEBUG_KMS("buffer object handle for unused plane %d\n", i); | |
3310 | return -EINVAL; | |
3311 | } | |
3312 | ||
3313 | if (r->pitches[i]) { | |
3314 | DRM_DEBUG_KMS("non-zero pitch for unused plane %d\n", i); | |
3315 | return -EINVAL; | |
3316 | } | |
3317 | ||
3318 | if (r->offsets[i]) { | |
3319 | DRM_DEBUG_KMS("non-zero offset for unused plane %d\n", i); | |
3320 | return -EINVAL; | |
3321 | } | |
3322 | } | |
3323 | ||
d1b45d5f VS |
3324 | return 0; |
3325 | } | |
3326 | ||
9a6f5130 CW |
3327 | static struct drm_framebuffer * |
3328 | internal_framebuffer_create(struct drm_device *dev, | |
1eb83451 | 3329 | const struct drm_mode_fb_cmd2 *r, |
9a6f5130 | 3330 | struct drm_file *file_priv) |
308e5bcb | 3331 | { |
f453ba04 DA |
3332 | struct drm_mode_config *config = &dev->mode_config; |
3333 | struct drm_framebuffer *fb; | |
4a1b0714 | 3334 | int ret; |
f453ba04 | 3335 | |
e3eb3250 | 3336 | if (r->flags & ~(DRM_MODE_FB_INTERLACED | DRM_MODE_FB_MODIFIERS)) { |
e3cc3520 | 3337 | DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); |
c394c2b0 | 3338 | return ERR_PTR(-EINVAL); |
e3cc3520 VS |
3339 | } |
3340 | ||
f453ba04 | 3341 | if ((config->min_width > r->width) || (r->width > config->max_width)) { |
1aa1b11c | 3342 | DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", |
8cf5c917 | 3343 | r->width, config->min_width, config->max_width); |
c394c2b0 | 3344 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
3345 | } |
3346 | if ((config->min_height > r->height) || (r->height > config->max_height)) { | |
1aa1b11c | 3347 | DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", |
8cf5c917 | 3348 | r->height, config->min_height, config->max_height); |
c394c2b0 | 3349 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
3350 | } |
3351 | ||
e3eb3250 RC |
3352 | if (r->flags & DRM_MODE_FB_MODIFIERS && |
3353 | !dev->mode_config.allow_fb_modifiers) { | |
3354 | DRM_DEBUG_KMS("driver does not support fb modifiers\n"); | |
3355 | return ERR_PTR(-EINVAL); | |
3356 | } | |
3357 | ||
d1b45d5f VS |
3358 | ret = framebuffer_check(r); |
3359 | if (ret) | |
c394c2b0 | 3360 | return ERR_PTR(ret); |
935b5977 | 3361 | |
f453ba04 | 3362 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
cce13ff7 | 3363 | if (IS_ERR(fb)) { |
1aa1b11c | 3364 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
c394c2b0 | 3365 | return fb; |
f453ba04 DA |
3366 | } |
3367 | ||
c394c2b0 MR |
3368 | return fb; |
3369 | } | |
4b096ac1 | 3370 | |
c394c2b0 MR |
3371 | /** |
3372 | * drm_mode_addfb2 - add an FB to the graphics configuration | |
3373 | * @dev: drm device for the ioctl | |
3374 | * @data: data pointer for the ioctl | |
3375 | * @file_priv: drm file for the ioctl call | |
3376 | * | |
3377 | * Add a new FB to the specified CRTC, given a user request with format. This is | |
3378 | * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers | |
3379 | * and uses fourcc codes as pixel format specifiers. | |
3380 | * | |
3381 | * Called by the user via ioctl. | |
3382 | * | |
3383 | * Returns: | |
1a498633 | 3384 | * Zero on success, negative errno on failure. |
c394c2b0 MR |
3385 | */ |
3386 | int drm_mode_addfb2(struct drm_device *dev, | |
3387 | void *data, struct drm_file *file_priv) | |
3388 | { | |
9a6f5130 | 3389 | struct drm_mode_fb_cmd2 *r = data; |
c394c2b0 MR |
3390 | struct drm_framebuffer *fb; |
3391 | ||
3392 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3393 | return -EINVAL; | |
3394 | ||
9a6f5130 | 3395 | fb = internal_framebuffer_create(dev, r, file_priv); |
c394c2b0 MR |
3396 | if (IS_ERR(fb)) |
3397 | return PTR_ERR(fb); | |
3398 | ||
9a6f5130 | 3399 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); |
9a6f5130 | 3400 | r->fb_id = fb->base.id; |
c7e1c59a DA |
3401 | |
3402 | /* Transfer ownership to the filp for reaping on close */ | |
3403 | mutex_lock(&file_priv->fbs_lock); | |
9a6f5130 CW |
3404 | list_add(&fb->filp_head, &file_priv->fbs); |
3405 | mutex_unlock(&file_priv->fbs_lock); | |
3406 | ||
c394c2b0 | 3407 | return 0; |
f453ba04 DA |
3408 | } |
3409 | ||
f2d580b9 ML |
3410 | struct drm_mode_rmfb_work { |
3411 | struct work_struct work; | |
3412 | struct list_head fbs; | |
3413 | }; | |
3414 | ||
3415 | static void drm_mode_rmfb_work_fn(struct work_struct *w) | |
3416 | { | |
3417 | struct drm_mode_rmfb_work *arg = container_of(w, typeof(*arg), work); | |
3418 | ||
3419 | while (!list_empty(&arg->fbs)) { | |
3420 | struct drm_framebuffer *fb = | |
3421 | list_first_entry(&arg->fbs, typeof(*fb), filp_head); | |
3422 | ||
3423 | list_del_init(&fb->filp_head); | |
3424 | drm_framebuffer_remove(fb); | |
3425 | } | |
3426 | } | |
3427 | ||
f453ba04 DA |
3428 | /** |
3429 | * drm_mode_rmfb - remove an FB from the configuration | |
065a50ed DV |
3430 | * @dev: drm device for the ioctl |
3431 | * @data: data pointer for the ioctl | |
3432 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3433 | * |
f453ba04 DA |
3434 | * Remove the FB specified by the user. |
3435 | * | |
3436 | * Called by the user via ioctl. | |
3437 | * | |
c8e32cc1 | 3438 | * Returns: |
1a498633 | 3439 | * Zero on success, negative errno on failure. |
f453ba04 DA |
3440 | */ |
3441 | int drm_mode_rmfb(struct drm_device *dev, | |
3442 | void *data, struct drm_file *file_priv) | |
3443 | { | |
f453ba04 DA |
3444 | struct drm_framebuffer *fb = NULL; |
3445 | struct drm_framebuffer *fbl = NULL; | |
3446 | uint32_t *id = data; | |
f453ba04 DA |
3447 | int found = 0; |
3448 | ||
fb3b06c8 DA |
3449 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3450 | return -EINVAL; | |
3451 | ||
72fe90b8 DA |
3452 | fb = drm_framebuffer_lookup(dev, *id); |
3453 | if (!fb) | |
3454 | return -ENOENT; | |
3455 | ||
4b096ac1 | 3456 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
3457 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
3458 | if (fb == fbl) | |
3459 | found = 1; | |
72fe90b8 DA |
3460 | if (!found) { |
3461 | mutex_unlock(&file_priv->fbs_lock); | |
3462 | goto fail_unref; | |
3463 | } | |
2b677e8c | 3464 | |
4b096ac1 DV |
3465 | list_del_init(&fb->filp_head); |
3466 | mutex_unlock(&file_priv->fbs_lock); | |
f453ba04 | 3467 | |
72fe90b8 DA |
3468 | /* drop the reference we picked up in framebuffer lookup */ |
3469 | drm_framebuffer_unreference(fb); | |
2b677e8c | 3470 | |
f2d580b9 ML |
3471 | /* |
3472 | * we now own the reference that was stored in the fbs list | |
3473 | * | |
3474 | * drm_framebuffer_remove may fail with -EINTR on pending signals, | |
3475 | * so run this in a separate stack as there's no way to correctly | |
3476 | * handle this after the fb is already removed from the lookup table. | |
3477 | */ | |
3478 | if (drm_framebuffer_read_refcount(fb) > 1) { | |
3479 | struct drm_mode_rmfb_work arg; | |
3480 | ||
3481 | INIT_WORK_ONSTACK(&arg.work, drm_mode_rmfb_work_fn); | |
3482 | INIT_LIST_HEAD(&arg.fbs); | |
3483 | list_add_tail(&fb->filp_head, &arg.fbs); | |
3484 | ||
3485 | schedule_work(&arg.work); | |
3486 | flush_work(&arg.work); | |
3487 | destroy_work_on_stack(&arg.work); | |
3488 | } else | |
3489 | drm_framebuffer_unreference(fb); | |
3490 | ||
72fe90b8 | 3491 | return 0; |
2b677e8c | 3492 | |
72fe90b8 DA |
3493 | fail_unref: |
3494 | drm_framebuffer_unreference(fb); | |
37c4e705 | 3495 | return -ENOENT; |
f453ba04 DA |
3496 | } |
3497 | ||
3498 | /** | |
3499 | * drm_mode_getfb - get FB info | |
065a50ed DV |
3500 | * @dev: drm device for the ioctl |
3501 | * @data: data pointer for the ioctl | |
3502 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3503 | * |
f453ba04 DA |
3504 | * Lookup the FB given its ID and return info about it. |
3505 | * | |
3506 | * Called by the user via ioctl. | |
3507 | * | |
c8e32cc1 | 3508 | * Returns: |
1a498633 | 3509 | * Zero on success, negative errno on failure. |
f453ba04 DA |
3510 | */ |
3511 | int drm_mode_getfb(struct drm_device *dev, | |
3512 | void *data, struct drm_file *file_priv) | |
3513 | { | |
3514 | struct drm_mode_fb_cmd *r = data; | |
f453ba04 | 3515 | struct drm_framebuffer *fb; |
58c0dca1 | 3516 | int ret; |
f453ba04 | 3517 | |
fb3b06c8 DA |
3518 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3519 | return -EINVAL; | |
3520 | ||
786b99ed | 3521 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
58c0dca1 | 3522 | if (!fb) |
37c4e705 | 3523 | return -ENOENT; |
f453ba04 DA |
3524 | |
3525 | r->height = fb->height; | |
3526 | r->width = fb->width; | |
3527 | r->depth = fb->depth; | |
3528 | r->bpp = fb->bits_per_pixel; | |
01f2c773 | 3529 | r->pitch = fb->pitches[0]; |
101b96f3 | 3530 | if (fb->funcs->create_handle) { |
09f308f7 | 3531 | if (file_priv->is_master || capable(CAP_SYS_ADMIN) || |
43683057 | 3532 | drm_is_control_client(file_priv)) { |
101b96f3 DH |
3533 | ret = fb->funcs->create_handle(fb, file_priv, |
3534 | &r->handle); | |
3535 | } else { | |
3536 | /* GET_FB() is an unprivileged ioctl so we must not | |
3537 | * return a buffer-handle to non-master processes! For | |
3538 | * backwards-compatibility reasons, we cannot make | |
3539 | * GET_FB() privileged, so just return an invalid handle | |
3540 | * for non-masters. */ | |
3541 | r->handle = 0; | |
3542 | ret = 0; | |
3543 | } | |
3544 | } else { | |
af26ef3b | 3545 | ret = -ENODEV; |
101b96f3 | 3546 | } |
f453ba04 | 3547 | |
58c0dca1 DV |
3548 | drm_framebuffer_unreference(fb); |
3549 | ||
f453ba04 DA |
3550 | return ret; |
3551 | } | |
3552 | ||
c8e32cc1 DV |
3553 | /** |
3554 | * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB | |
3555 | * @dev: drm device for the ioctl | |
3556 | * @data: data pointer for the ioctl | |
3557 | * @file_priv: drm file for the ioctl call | |
3558 | * | |
3559 | * Lookup the FB and flush out the damaged area supplied by userspace as a clip | |
3560 | * rectangle list. Generic userspace which does frontbuffer rendering must call | |
3561 | * this ioctl to flush out the changes on manual-update display outputs, e.g. | |
3562 | * usb display-link, mipi manual update panels or edp panel self refresh modes. | |
3563 | * | |
3564 | * Modesetting drivers which always update the frontbuffer do not need to | |
3565 | * implement the corresponding ->dirty framebuffer callback. | |
3566 | * | |
3567 | * Called by the user via ioctl. | |
3568 | * | |
3569 | * Returns: | |
1a498633 | 3570 | * Zero on success, negative errno on failure. |
c8e32cc1 | 3571 | */ |
884840aa JB |
3572 | int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
3573 | void *data, struct drm_file *file_priv) | |
3574 | { | |
3575 | struct drm_clip_rect __user *clips_ptr; | |
3576 | struct drm_clip_rect *clips = NULL; | |
3577 | struct drm_mode_fb_dirty_cmd *r = data; | |
884840aa JB |
3578 | struct drm_framebuffer *fb; |
3579 | unsigned flags; | |
3580 | int num_clips; | |
4a1b0714 | 3581 | int ret; |
884840aa | 3582 | |
fb3b06c8 DA |
3583 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3584 | return -EINVAL; | |
3585 | ||
786b99ed | 3586 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
4ccf097f | 3587 | if (!fb) |
37c4e705 | 3588 | return -ENOENT; |
884840aa JB |
3589 | |
3590 | num_clips = r->num_clips; | |
81f6c7f8 | 3591 | clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; |
884840aa JB |
3592 | |
3593 | if (!num_clips != !clips_ptr) { | |
3594 | ret = -EINVAL; | |
3595 | goto out_err1; | |
3596 | } | |
3597 | ||
3598 | flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; | |
3599 | ||
3600 | /* If userspace annotates copy, clips must come in pairs */ | |
3601 | if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { | |
3602 | ret = -EINVAL; | |
3603 | goto out_err1; | |
3604 | } | |
3605 | ||
3606 | if (num_clips && clips_ptr) { | |
a5cd3351 XW |
3607 | if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { |
3608 | ret = -EINVAL; | |
3609 | goto out_err1; | |
3610 | } | |
bd3f0ff9 | 3611 | clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); |
884840aa JB |
3612 | if (!clips) { |
3613 | ret = -ENOMEM; | |
3614 | goto out_err1; | |
3615 | } | |
3616 | ||
3617 | ret = copy_from_user(clips, clips_ptr, | |
3618 | num_clips * sizeof(*clips)); | |
e902a358 DC |
3619 | if (ret) { |
3620 | ret = -EFAULT; | |
884840aa | 3621 | goto out_err2; |
e902a358 | 3622 | } |
884840aa JB |
3623 | } |
3624 | ||
3625 | if (fb->funcs->dirty) { | |
02b00162 TH |
3626 | ret = fb->funcs->dirty(fb, file_priv, flags, r->color, |
3627 | clips, num_clips); | |
884840aa JB |
3628 | } else { |
3629 | ret = -ENOSYS; | |
884840aa JB |
3630 | } |
3631 | ||
3632 | out_err2: | |
3633 | kfree(clips); | |
3634 | out_err1: | |
4ccf097f DV |
3635 | drm_framebuffer_unreference(fb); |
3636 | ||
884840aa JB |
3637 | return ret; |
3638 | } | |
3639 | ||
f453ba04 DA |
3640 | /** |
3641 | * drm_fb_release - remove and free the FBs on this file | |
065a50ed | 3642 | * @priv: drm file for the ioctl |
f453ba04 | 3643 | * |
f453ba04 DA |
3644 | * Destroy all the FBs associated with @filp. |
3645 | * | |
3646 | * Called by the user via ioctl. | |
3647 | * | |
c8e32cc1 | 3648 | * Returns: |
1a498633 | 3649 | * Zero on success, negative errno on failure. |
f453ba04 | 3650 | */ |
ea39f835 | 3651 | void drm_fb_release(struct drm_file *priv) |
f453ba04 | 3652 | { |
f453ba04 | 3653 | struct drm_framebuffer *fb, *tfb; |
f2d580b9 ML |
3654 | struct drm_mode_rmfb_work arg; |
3655 | ||
3656 | INIT_LIST_HEAD(&arg.fbs); | |
f453ba04 | 3657 | |
1b116297 DV |
3658 | /* |
3659 | * When the file gets released that means no one else can access the fb | |
e2db726b | 3660 | * list any more, so no need to grab fpriv->fbs_lock. And we need to |
1b116297 DV |
3661 | * avoid upsetting lockdep since the universal cursor code adds a |
3662 | * framebuffer while holding mutex locks. | |
3663 | * | |
3664 | * Note that a real deadlock between fpriv->fbs_lock and the modeset | |
3665 | * locks is impossible here since no one else but this function can get | |
3666 | * at it any more. | |
3667 | */ | |
f453ba04 | 3668 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
f2d580b9 ML |
3669 | if (drm_framebuffer_read_refcount(fb) > 1) { |
3670 | list_move_tail(&fb->filp_head, &arg.fbs); | |
3671 | } else { | |
3672 | list_del_init(&fb->filp_head); | |
2b677e8c | 3673 | |
f2d580b9 ML |
3674 | /* This drops the fpriv->fbs reference. */ |
3675 | drm_framebuffer_unreference(fb); | |
3676 | } | |
3677 | } | |
3678 | ||
3679 | if (!list_empty(&arg.fbs)) { | |
3680 | INIT_WORK_ONSTACK(&arg.work, drm_mode_rmfb_work_fn); | |
3681 | ||
3682 | schedule_work(&arg.work); | |
3683 | flush_work(&arg.work); | |
3684 | destroy_work_on_stack(&arg.work); | |
f453ba04 | 3685 | } |
f453ba04 DA |
3686 | } |
3687 | ||
c8e32cc1 DV |
3688 | /** |
3689 | * drm_property_create - create a new property type | |
3690 | * @dev: drm device | |
3691 | * @flags: flags specifying the property type | |
3692 | * @name: name of the property | |
3693 | * @num_values: number of pre-defined values | |
3694 | * | |
3695 | * This creates a new generic drm property which can then be attached to a drm | |
3696 | * object with drm_object_attach_property. The returned property object must be | |
3697 | * freed with drm_property_destroy. | |
3698 | * | |
3b5b9932 DL |
3699 | * Note that the DRM core keeps a per-device list of properties and that, if |
3700 | * drm_mode_config_cleanup() is called, it will destroy all properties created | |
3701 | * by the driver. | |
3702 | * | |
c8e32cc1 DV |
3703 | * Returns: |
3704 | * A pointer to the newly created property on success, NULL on failure. | |
3705 | */ | |
f453ba04 DA |
3706 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
3707 | const char *name, int num_values) | |
3708 | { | |
3709 | struct drm_property *property = NULL; | |
6bfc56aa | 3710 | int ret; |
f453ba04 DA |
3711 | |
3712 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); | |
3713 | if (!property) | |
3714 | return NULL; | |
3715 | ||
98f75de4 RC |
3716 | property->dev = dev; |
3717 | ||
f453ba04 | 3718 | if (num_values) { |
bd3f0ff9 TR |
3719 | property->values = kcalloc(num_values, sizeof(uint64_t), |
3720 | GFP_KERNEL); | |
f453ba04 DA |
3721 | if (!property->values) |
3722 | goto fail; | |
3723 | } | |
3724 | ||
6bfc56aa VS |
3725 | ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
3726 | if (ret) | |
3727 | goto fail; | |
3728 | ||
f453ba04 DA |
3729 | property->flags = flags; |
3730 | property->num_values = num_values; | |
3758b341 | 3731 | INIT_LIST_HEAD(&property->enum_list); |
f453ba04 | 3732 | |
471dd2ef | 3733 | if (name) { |
f453ba04 | 3734 | strncpy(property->name, name, DRM_PROP_NAME_LEN); |
471dd2ef VL |
3735 | property->name[DRM_PROP_NAME_LEN-1] = '\0'; |
3736 | } | |
f453ba04 DA |
3737 | |
3738 | list_add_tail(&property->head, &dev->mode_config.property_list); | |
5ea22f24 RC |
3739 | |
3740 | WARN_ON(!drm_property_type_valid(property)); | |
3741 | ||
f453ba04 DA |
3742 | return property; |
3743 | fail: | |
6bfc56aa | 3744 | kfree(property->values); |
f453ba04 DA |
3745 | kfree(property); |
3746 | return NULL; | |
3747 | } | |
3748 | EXPORT_SYMBOL(drm_property_create); | |
3749 | ||
c8e32cc1 | 3750 | /** |
2aa9d2bc | 3751 | * drm_property_create_enum - create a new enumeration property type |
c8e32cc1 DV |
3752 | * @dev: drm device |
3753 | * @flags: flags specifying the property type | |
3754 | * @name: name of the property | |
3755 | * @props: enumeration lists with property values | |
3756 | * @num_values: number of pre-defined values | |
3757 | * | |
3758 | * This creates a new generic drm property which can then be attached to a drm | |
3759 | * object with drm_object_attach_property. The returned property object must be | |
3760 | * freed with drm_property_destroy. | |
3761 | * | |
3762 | * Userspace is only allowed to set one of the predefined values for enumeration | |
3763 | * properties. | |
3764 | * | |
3765 | * Returns: | |
3766 | * A pointer to the newly created property on success, NULL on failure. | |
3767 | */ | |
4a67d391 SH |
3768 | struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
3769 | const char *name, | |
3770 | const struct drm_prop_enum_list *props, | |
3771 | int num_values) | |
3772 | { | |
3773 | struct drm_property *property; | |
3774 | int i, ret; | |
3775 | ||
3776 | flags |= DRM_MODE_PROP_ENUM; | |
3777 | ||
3778 | property = drm_property_create(dev, flags, name, num_values); | |
3779 | if (!property) | |
3780 | return NULL; | |
3781 | ||
3782 | for (i = 0; i < num_values; i++) { | |
3783 | ret = drm_property_add_enum(property, i, | |
3784 | props[i].type, | |
3785 | props[i].name); | |
3786 | if (ret) { | |
3787 | drm_property_destroy(dev, property); | |
3788 | return NULL; | |
3789 | } | |
3790 | } | |
3791 | ||
3792 | return property; | |
3793 | } | |
3794 | EXPORT_SYMBOL(drm_property_create_enum); | |
3795 | ||
c8e32cc1 | 3796 | /** |
2aa9d2bc | 3797 | * drm_property_create_bitmask - create a new bitmask property type |
c8e32cc1 DV |
3798 | * @dev: drm device |
3799 | * @flags: flags specifying the property type | |
3800 | * @name: name of the property | |
3801 | * @props: enumeration lists with property bitflags | |
295ee853 DV |
3802 | * @num_props: size of the @props array |
3803 | * @supported_bits: bitmask of all supported enumeration values | |
c8e32cc1 | 3804 | * |
295ee853 | 3805 | * This creates a new bitmask drm property which can then be attached to a drm |
c8e32cc1 DV |
3806 | * object with drm_object_attach_property. The returned property object must be |
3807 | * freed with drm_property_destroy. | |
3808 | * | |
3809 | * Compared to plain enumeration properties userspace is allowed to set any | |
3810 | * or'ed together combination of the predefined property bitflag values | |
3811 | * | |
3812 | * Returns: | |
3813 | * A pointer to the newly created property on success, NULL on failure. | |
3814 | */ | |
49e27545 RC |
3815 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
3816 | int flags, const char *name, | |
3817 | const struct drm_prop_enum_list *props, | |
7689ffb3 VS |
3818 | int num_props, |
3819 | uint64_t supported_bits) | |
49e27545 RC |
3820 | { |
3821 | struct drm_property *property; | |
7689ffb3 VS |
3822 | int i, ret, index = 0; |
3823 | int num_values = hweight64(supported_bits); | |
49e27545 RC |
3824 | |
3825 | flags |= DRM_MODE_PROP_BITMASK; | |
3826 | ||
3827 | property = drm_property_create(dev, flags, name, num_values); | |
3828 | if (!property) | |
3829 | return NULL; | |
7689ffb3 VS |
3830 | for (i = 0; i < num_props; i++) { |
3831 | if (!(supported_bits & (1ULL << props[i].type))) | |
3832 | continue; | |
49e27545 | 3833 | |
7689ffb3 VS |
3834 | if (WARN_ON(index >= num_values)) { |
3835 | drm_property_destroy(dev, property); | |
3836 | return NULL; | |
3837 | } | |
3838 | ||
3839 | ret = drm_property_add_enum(property, index++, | |
49e27545 RC |
3840 | props[i].type, |
3841 | props[i].name); | |
3842 | if (ret) { | |
3843 | drm_property_destroy(dev, property); | |
3844 | return NULL; | |
3845 | } | |
3846 | } | |
3847 | ||
3848 | return property; | |
3849 | } | |
3850 | EXPORT_SYMBOL(drm_property_create_bitmask); | |
3851 | ||
ebc44cf3 RC |
3852 | static struct drm_property *property_create_range(struct drm_device *dev, |
3853 | int flags, const char *name, | |
3854 | uint64_t min, uint64_t max) | |
3855 | { | |
3856 | struct drm_property *property; | |
3857 | ||
3858 | property = drm_property_create(dev, flags, name, 2); | |
3859 | if (!property) | |
3860 | return NULL; | |
3861 | ||
3862 | property->values[0] = min; | |
3863 | property->values[1] = max; | |
3864 | ||
3865 | return property; | |
3866 | } | |
3867 | ||
c8e32cc1 | 3868 | /** |
960cd9d4 | 3869 | * drm_property_create_range - create a new unsigned ranged property type |
c8e32cc1 DV |
3870 | * @dev: drm device |
3871 | * @flags: flags specifying the property type | |
3872 | * @name: name of the property | |
3873 | * @min: minimum value of the property | |
3874 | * @max: maximum value of the property | |
3875 | * | |
3876 | * This creates a new generic drm property which can then be attached to a drm | |
3877 | * object with drm_object_attach_property. The returned property object must be | |
3878 | * freed with drm_property_destroy. | |
3879 | * | |
960cd9d4 DV |
3880 | * Userspace is allowed to set any unsigned integer value in the (min, max) |
3881 | * range inclusive. | |
c8e32cc1 DV |
3882 | * |
3883 | * Returns: | |
3884 | * A pointer to the newly created property on success, NULL on failure. | |
3885 | */ | |
d9bc3c02 SH |
3886 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
3887 | const char *name, | |
3888 | uint64_t min, uint64_t max) | |
3889 | { | |
ebc44cf3 RC |
3890 | return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, |
3891 | name, min, max); | |
d9bc3c02 SH |
3892 | } |
3893 | EXPORT_SYMBOL(drm_property_create_range); | |
3894 | ||
960cd9d4 DV |
3895 | /** |
3896 | * drm_property_create_signed_range - create a new signed ranged property type | |
3897 | * @dev: drm device | |
3898 | * @flags: flags specifying the property type | |
3899 | * @name: name of the property | |
3900 | * @min: minimum value of the property | |
3901 | * @max: maximum value of the property | |
3902 | * | |
3903 | * This creates a new generic drm property which can then be attached to a drm | |
3904 | * object with drm_object_attach_property. The returned property object must be | |
3905 | * freed with drm_property_destroy. | |
3906 | * | |
3907 | * Userspace is allowed to set any signed integer value in the (min, max) | |
3908 | * range inclusive. | |
3909 | * | |
3910 | * Returns: | |
3911 | * A pointer to the newly created property on success, NULL on failure. | |
3912 | */ | |
ebc44cf3 RC |
3913 | struct drm_property *drm_property_create_signed_range(struct drm_device *dev, |
3914 | int flags, const char *name, | |
3915 | int64_t min, int64_t max) | |
3916 | { | |
3917 | return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, | |
3918 | name, I642U64(min), I642U64(max)); | |
3919 | } | |
3920 | EXPORT_SYMBOL(drm_property_create_signed_range); | |
3921 | ||
960cd9d4 DV |
3922 | /** |
3923 | * drm_property_create_object - create a new object property type | |
3924 | * @dev: drm device | |
3925 | * @flags: flags specifying the property type | |
3926 | * @name: name of the property | |
3927 | * @type: object type from DRM_MODE_OBJECT_* defines | |
3928 | * | |
3929 | * This creates a new generic drm property which can then be attached to a drm | |
3930 | * object with drm_object_attach_property. The returned property object must be | |
3931 | * freed with drm_property_destroy. | |
3932 | * | |
3933 | * Userspace is only allowed to set this to any property value of the given | |
3934 | * @type. Only useful for atomic properties, which is enforced. | |
3935 | * | |
3936 | * Returns: | |
3937 | * A pointer to the newly created property on success, NULL on failure. | |
3938 | */ | |
98f75de4 RC |
3939 | struct drm_property *drm_property_create_object(struct drm_device *dev, |
3940 | int flags, const char *name, uint32_t type) | |
3941 | { | |
3942 | struct drm_property *property; | |
3943 | ||
3944 | flags |= DRM_MODE_PROP_OBJECT; | |
3945 | ||
960cd9d4 DV |
3946 | if (WARN_ON(!(flags & DRM_MODE_PROP_ATOMIC))) |
3947 | return NULL; | |
3948 | ||
98f75de4 RC |
3949 | property = drm_property_create(dev, flags, name, 1); |
3950 | if (!property) | |
3951 | return NULL; | |
3952 | ||
3953 | property->values[0] = type; | |
3954 | ||
3955 | return property; | |
3956 | } | |
3957 | EXPORT_SYMBOL(drm_property_create_object); | |
3958 | ||
960cd9d4 DV |
3959 | /** |
3960 | * drm_property_create_bool - create a new boolean property type | |
3961 | * @dev: drm device | |
3962 | * @flags: flags specifying the property type | |
3963 | * @name: name of the property | |
3964 | * | |
3965 | * This creates a new generic drm property which can then be attached to a drm | |
3966 | * object with drm_object_attach_property. The returned property object must be | |
3967 | * freed with drm_property_destroy. | |
3968 | * | |
3969 | * This is implemented as a ranged property with only {0, 1} as valid values. | |
3970 | * | |
3971 | * Returns: | |
3972 | * A pointer to the newly created property on success, NULL on failure. | |
3973 | */ | |
3974 | struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags, | |
3975 | const char *name) | |
3976 | { | |
3977 | return drm_property_create_range(dev, flags, name, 0, 1); | |
3978 | } | |
3979 | EXPORT_SYMBOL(drm_property_create_bool); | |
3980 | ||
c8e32cc1 DV |
3981 | /** |
3982 | * drm_property_add_enum - add a possible value to an enumeration property | |
3983 | * @property: enumeration property to change | |
3984 | * @index: index of the new enumeration | |
3985 | * @value: value of the new enumeration | |
3986 | * @name: symbolic name of the new enumeration | |
3987 | * | |
3988 | * This functions adds enumerations to a property. | |
3989 | * | |
3990 | * It's use is deprecated, drivers should use one of the more specific helpers | |
3991 | * to directly create the property with all enumerations already attached. | |
3992 | * | |
3993 | * Returns: | |
3994 | * Zero on success, error code on failure. | |
3995 | */ | |
f453ba04 DA |
3996 | int drm_property_add_enum(struct drm_property *property, int index, |
3997 | uint64_t value, const char *name) | |
3998 | { | |
3999 | struct drm_property_enum *prop_enum; | |
4000 | ||
5ea22f24 RC |
4001 | if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
4002 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) | |
49e27545 RC |
4003 | return -EINVAL; |
4004 | ||
4005 | /* | |
4006 | * Bitmask enum properties have the additional constraint of values | |
4007 | * from 0 to 63 | |
4008 | */ | |
5ea22f24 RC |
4009 | if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && |
4010 | (value > 63)) | |
f453ba04 DA |
4011 | return -EINVAL; |
4012 | ||
3758b341 DV |
4013 | if (!list_empty(&property->enum_list)) { |
4014 | list_for_each_entry(prop_enum, &property->enum_list, head) { | |
f453ba04 DA |
4015 | if (prop_enum->value == value) { |
4016 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
4017 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
4018 | return 0; | |
4019 | } | |
4020 | } | |
4021 | } | |
4022 | ||
4023 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); | |
4024 | if (!prop_enum) | |
4025 | return -ENOMEM; | |
4026 | ||
4027 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
4028 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
4029 | prop_enum->value = value; | |
4030 | ||
4031 | property->values[index] = value; | |
3758b341 | 4032 | list_add_tail(&prop_enum->head, &property->enum_list); |
f453ba04 DA |
4033 | return 0; |
4034 | } | |
4035 | EXPORT_SYMBOL(drm_property_add_enum); | |
4036 | ||
c8e32cc1 DV |
4037 | /** |
4038 | * drm_property_destroy - destroy a drm property | |
4039 | * @dev: drm device | |
4040 | * @property: property to destry | |
4041 | * | |
4042 | * This function frees a property including any attached resources like | |
4043 | * enumeration values. | |
4044 | */ | |
f453ba04 DA |
4045 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) |
4046 | { | |
4047 | struct drm_property_enum *prop_enum, *pt; | |
4048 | ||
3758b341 | 4049 | list_for_each_entry_safe(prop_enum, pt, &property->enum_list, head) { |
f453ba04 DA |
4050 | list_del(&prop_enum->head); |
4051 | kfree(prop_enum); | |
4052 | } | |
4053 | ||
4054 | if (property->num_values) | |
4055 | kfree(property->values); | |
7c8f6d25 | 4056 | drm_mode_object_unregister(dev, &property->base); |
f453ba04 DA |
4057 | list_del(&property->head); |
4058 | kfree(property); | |
4059 | } | |
4060 | EXPORT_SYMBOL(drm_property_destroy); | |
4061 | ||
c8e32cc1 DV |
4062 | /** |
4063 | * drm_object_attach_property - attach a property to a modeset object | |
4064 | * @obj: drm modeset object | |
4065 | * @property: property to attach | |
4066 | * @init_val: initial value of the property | |
4067 | * | |
4068 | * This attaches the given property to the modeset object with the given initial | |
4069 | * value. Currently this function cannot fail since the properties are stored in | |
4070 | * a statically sized array. | |
4071 | */ | |
c543188a PZ |
4072 | void drm_object_attach_property(struct drm_mode_object *obj, |
4073 | struct drm_property *property, | |
4074 | uint64_t init_val) | |
4075 | { | |
7f88a9be | 4076 | int count = obj->properties->count; |
c543188a | 4077 | |
7f88a9be PZ |
4078 | if (count == DRM_OBJECT_MAX_PROPERTY) { |
4079 | WARN(1, "Failed to attach object property (type: 0x%x). Please " | |
4080 | "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " | |
4081 | "you see this message on the same object type.\n", | |
4082 | obj->type); | |
4083 | return; | |
c543188a PZ |
4084 | } |
4085 | ||
b17cd757 | 4086 | obj->properties->properties[count] = property; |
7f88a9be PZ |
4087 | obj->properties->values[count] = init_val; |
4088 | obj->properties->count++; | |
88a48e29 RC |
4089 | if (property->flags & DRM_MODE_PROP_ATOMIC) |
4090 | obj->properties->atomic_count++; | |
c543188a PZ |
4091 | } |
4092 | EXPORT_SYMBOL(drm_object_attach_property); | |
4093 | ||
c8e32cc1 DV |
4094 | /** |
4095 | * drm_object_property_set_value - set the value of a property | |
4096 | * @obj: drm mode object to set property value for | |
4097 | * @property: property to set | |
4098 | * @val: value the property should be set to | |
4099 | * | |
4100 | * This functions sets a given property on a given object. This function only | |
4101 | * changes the software state of the property, it does not call into the | |
4102 | * driver's ->set_property callback. | |
4103 | * | |
4104 | * Returns: | |
4105 | * Zero on success, error code on failure. | |
4106 | */ | |
c543188a PZ |
4107 | int drm_object_property_set_value(struct drm_mode_object *obj, |
4108 | struct drm_property *property, uint64_t val) | |
4109 | { | |
4110 | int i; | |
4111 | ||
7f88a9be | 4112 | for (i = 0; i < obj->properties->count; i++) { |
b17cd757 | 4113 | if (obj->properties->properties[i] == property) { |
c543188a PZ |
4114 | obj->properties->values[i] = val; |
4115 | return 0; | |
4116 | } | |
4117 | } | |
4118 | ||
4119 | return -EINVAL; | |
4120 | } | |
4121 | EXPORT_SYMBOL(drm_object_property_set_value); | |
4122 | ||
c8e32cc1 DV |
4123 | /** |
4124 | * drm_object_property_get_value - retrieve the value of a property | |
4125 | * @obj: drm mode object to get property value from | |
4126 | * @property: property to retrieve | |
4127 | * @val: storage for the property value | |
4128 | * | |
4129 | * This function retrieves the softare state of the given property for the given | |
4130 | * property. Since there is no driver callback to retrieve the current property | |
4131 | * value this might be out of sync with the hardware, depending upon the driver | |
4132 | * and property. | |
4133 | * | |
4134 | * Returns: | |
4135 | * Zero on success, error code on failure. | |
4136 | */ | |
c543188a PZ |
4137 | int drm_object_property_get_value(struct drm_mode_object *obj, |
4138 | struct drm_property *property, uint64_t *val) | |
4139 | { | |
4140 | int i; | |
4141 | ||
88a48e29 RC |
4142 | /* read-only properties bypass atomic mechanism and still store |
4143 | * their value in obj->properties->values[].. mostly to avoid | |
4144 | * having to deal w/ EDID and similar props in atomic paths: | |
4145 | */ | |
4146 | if (drm_core_check_feature(property->dev, DRIVER_ATOMIC) && | |
4147 | !(property->flags & DRM_MODE_PROP_IMMUTABLE)) | |
4148 | return drm_atomic_get_property(obj, property, val); | |
4149 | ||
7f88a9be | 4150 | for (i = 0; i < obj->properties->count; i++) { |
b17cd757 | 4151 | if (obj->properties->properties[i] == property) { |
c543188a PZ |
4152 | *val = obj->properties->values[i]; |
4153 | return 0; | |
4154 | } | |
4155 | } | |
4156 | ||
4157 | return -EINVAL; | |
4158 | } | |
4159 | EXPORT_SYMBOL(drm_object_property_get_value); | |
4160 | ||
c8e32cc1 | 4161 | /** |
1a498633 | 4162 | * drm_mode_getproperty_ioctl - get the property metadata |
c8e32cc1 DV |
4163 | * @dev: DRM device |
4164 | * @data: ioctl data | |
4165 | * @file_priv: DRM file info | |
4166 | * | |
1a498633 DV |
4167 | * This function retrieves the metadata for a given property, like the different |
4168 | * possible values for an enum property or the limits for a range property. | |
4169 | * | |
4170 | * Blob properties are special | |
c8e32cc1 DV |
4171 | * |
4172 | * Called by the user via ioctl. | |
4173 | * | |
4174 | * Returns: | |
1a498633 | 4175 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4176 | */ |
f453ba04 DA |
4177 | int drm_mode_getproperty_ioctl(struct drm_device *dev, |
4178 | void *data, struct drm_file *file_priv) | |
4179 | { | |
f453ba04 DA |
4180 | struct drm_mode_get_property *out_resp = data; |
4181 | struct drm_property *property; | |
4182 | int enum_count = 0; | |
f453ba04 DA |
4183 | int value_count = 0; |
4184 | int ret = 0, i; | |
4185 | int copied; | |
4186 | struct drm_property_enum *prop_enum; | |
4187 | struct drm_mode_property_enum __user *enum_ptr; | |
f453ba04 | 4188 | uint64_t __user *values_ptr; |
f453ba04 | 4189 | |
fb3b06c8 DA |
4190 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4191 | return -EINVAL; | |
4192 | ||
84849903 | 4193 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4194 | property = drm_property_find(dev, out_resp->prop_id); |
4195 | if (!property) { | |
f27657f2 | 4196 | ret = -ENOENT; |
f453ba04 DA |
4197 | goto done; |
4198 | } | |
f453ba04 | 4199 | |
5ea22f24 RC |
4200 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
4201 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
3758b341 | 4202 | list_for_each_entry(prop_enum, &property->enum_list, head) |
f453ba04 | 4203 | enum_count++; |
f453ba04 DA |
4204 | } |
4205 | ||
4206 | value_count = property->num_values; | |
4207 | ||
4208 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); | |
4209 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; | |
4210 | out_resp->flags = property->flags; | |
4211 | ||
4212 | if ((out_resp->count_values >= value_count) && value_count) { | |
81f6c7f8 | 4213 | values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; |
f453ba04 DA |
4214 | for (i = 0; i < value_count; i++) { |
4215 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { | |
4216 | ret = -EFAULT; | |
4217 | goto done; | |
4218 | } | |
4219 | } | |
4220 | } | |
4221 | out_resp->count_values = value_count; | |
4222 | ||
5ea22f24 RC |
4223 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
4224 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
f453ba04 DA |
4225 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
4226 | copied = 0; | |
81f6c7f8 | 4227 | enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; |
3758b341 | 4228 | list_for_each_entry(prop_enum, &property->enum_list, head) { |
f453ba04 DA |
4229 | |
4230 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { | |
4231 | ret = -EFAULT; | |
4232 | goto done; | |
4233 | } | |
4234 | ||
4235 | if (copy_to_user(&enum_ptr[copied].name, | |
4236 | &prop_enum->name, DRM_PROP_NAME_LEN)) { | |
4237 | ret = -EFAULT; | |
4238 | goto done; | |
4239 | } | |
4240 | copied++; | |
4241 | } | |
4242 | } | |
4243 | out_resp->count_enum_blobs = enum_count; | |
4244 | } | |
4245 | ||
3758b341 DV |
4246 | /* |
4247 | * NOTE: The idea seems to have been to use this to read all the blob | |
4248 | * property values. But nothing ever added them to the corresponding | |
4249 | * list, userspace always used the special-purpose get_blob ioctl to | |
4250 | * read the value for a blob property. It also doesn't make a lot of | |
4251 | * sense to return values here when everything else is just metadata for | |
4252 | * the property itself. | |
4253 | */ | |
4254 | if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) | |
4255 | out_resp->count_enum_blobs = 0; | |
f453ba04 | 4256 | done: |
84849903 | 4257 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4258 | return ret; |
4259 | } | |
4260 | ||
152ef5fa DV |
4261 | static void drm_property_free_blob(struct kref *kref) |
4262 | { | |
4263 | struct drm_property_blob *blob = | |
4264 | container_of(kref, struct drm_property_blob, base.refcount); | |
4265 | ||
4266 | mutex_lock(&blob->dev->mode_config.blob_lock); | |
4267 | list_del(&blob->head_global); | |
4268 | mutex_unlock(&blob->dev->mode_config.blob_lock); | |
4269 | ||
4270 | drm_mode_object_unregister(blob->dev, &blob->base); | |
4271 | ||
4272 | kfree(blob); | |
4273 | } | |
4274 | ||
99531d9b DS |
4275 | /** |
4276 | * drm_property_create_blob - Create new blob property | |
4277 | * | |
4278 | * Creates a new blob property for a specified DRM device, optionally | |
4279 | * copying data. | |
4280 | * | |
4281 | * @dev: DRM device to create property for | |
4282 | * @length: Length to allocate for blob data | |
4283 | * @data: If specified, copies data into blob | |
10e8cb7e DS |
4284 | * |
4285 | * Returns: | |
4286 | * New blob property with a single reference on success, or an ERR_PTR | |
4287 | * value on failure. | |
99531d9b | 4288 | */ |
6bcacf51 | 4289 | struct drm_property_blob * |
ecbbe59b | 4290 | drm_property_create_blob(struct drm_device *dev, size_t length, |
12e6cecd | 4291 | const void *data) |
f453ba04 DA |
4292 | { |
4293 | struct drm_property_blob *blob; | |
6bfc56aa | 4294 | int ret; |
f453ba04 | 4295 | |
9ac0934b | 4296 | if (!length || length > ULONG_MAX - sizeof(struct drm_property_blob)) |
10e8cb7e | 4297 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
4298 | |
4299 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); | |
4300 | if (!blob) | |
10e8cb7e | 4301 | return ERR_PTR(-ENOMEM); |
f453ba04 | 4302 | |
e2f5d2ea DS |
4303 | /* This must be explicitly initialised, so we can safely call list_del |
4304 | * on it in the removal handler, even if it isn't in a file list. */ | |
4305 | INIT_LIST_HEAD(&blob->head_file); | |
8fb6e7a5 | 4306 | blob->length = length; |
6bcacf51 | 4307 | blob->dev = dev; |
8fb6e7a5 | 4308 | |
99531d9b DS |
4309 | if (data) |
4310 | memcpy(blob->data, data, length); | |
8fb6e7a5 | 4311 | |
152ef5fa DV |
4312 | ret = drm_mode_object_get_reg(dev, &blob->base, DRM_MODE_OBJECT_BLOB, |
4313 | true, drm_property_free_blob); | |
6bfc56aa VS |
4314 | if (ret) { |
4315 | kfree(blob); | |
10e8cb7e | 4316 | return ERR_PTR(-EINVAL); |
6bfc56aa VS |
4317 | } |
4318 | ||
152ef5fa | 4319 | mutex_lock(&dev->mode_config.blob_lock); |
e2f5d2ea DS |
4320 | list_add_tail(&blob->head_global, |
4321 | &dev->mode_config.property_blob_list); | |
8fb6e7a5 | 4322 | mutex_unlock(&dev->mode_config.blob_lock); |
f453ba04 | 4323 | |
f453ba04 DA |
4324 | return blob; |
4325 | } | |
6bcacf51 | 4326 | EXPORT_SYMBOL(drm_property_create_blob); |
f453ba04 | 4327 | |
6bcacf51 DS |
4328 | /** |
4329 | * drm_property_unreference_blob - Unreference a blob property | |
4330 | * | |
4331 | * Drop a reference on a blob property. May free the object. | |
4332 | * | |
f102c16e | 4333 | * @blob: Pointer to blob property |
6bcacf51 DS |
4334 | */ |
4335 | void drm_property_unreference_blob(struct drm_property_blob *blob) | |
4336 | { | |
6bcacf51 DS |
4337 | if (!blob) |
4338 | return; | |
4339 | ||
152ef5fa | 4340 | drm_mode_object_unreference(&blob->base); |
6bcacf51 DS |
4341 | } |
4342 | EXPORT_SYMBOL(drm_property_unreference_blob); | |
4343 | ||
e2f5d2ea DS |
4344 | /** |
4345 | * drm_property_destroy_user_blobs - destroy all blobs created by this client | |
4346 | * @dev: DRM device | |
4347 | * @file_priv: destroy all blobs owned by this file handle | |
4348 | */ | |
4349 | void drm_property_destroy_user_blobs(struct drm_device *dev, | |
4350 | struct drm_file *file_priv) | |
4351 | { | |
4352 | struct drm_property_blob *blob, *bt; | |
4353 | ||
152ef5fa DV |
4354 | /* |
4355 | * When the file gets released that means no one else can access the | |
4356 | * blob list any more, so no need to grab dev->blob_lock. | |
4357 | */ | |
e2f5d2ea DS |
4358 | list_for_each_entry_safe(blob, bt, &file_priv->blobs, head_file) { |
4359 | list_del_init(&blob->head_file); | |
152ef5fa | 4360 | drm_property_unreference_blob(blob); |
e2f5d2ea | 4361 | } |
e2f5d2ea DS |
4362 | } |
4363 | ||
6bcacf51 DS |
4364 | /** |
4365 | * drm_property_reference_blob - Take a reference on an existing property | |
4366 | * | |
4367 | * Take a new reference on an existing blob property. | |
4368 | * | |
f102c16e | 4369 | * @blob: Pointer to blob property |
6bcacf51 DS |
4370 | */ |
4371 | struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob) | |
4372 | { | |
152ef5fa | 4373 | drm_mode_object_reference(&blob->base); |
6bcacf51 DS |
4374 | return blob; |
4375 | } | |
4376 | EXPORT_SYMBOL(drm_property_reference_blob); | |
4377 | ||
6bcacf51 DS |
4378 | /** |
4379 | * drm_property_lookup_blob - look up a blob property and take a reference | |
4380 | * @dev: drm device | |
4381 | * @id: id of the blob property | |
4382 | * | |
4383 | * If successful, this takes an additional reference to the blob property. | |
4384 | * callers need to make sure to eventually unreference the returned property | |
4385 | * again, using @drm_property_unreference_blob. | |
4386 | */ | |
4387 | struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev, | |
4388 | uint32_t id) | |
4389 | { | |
152ef5fa DV |
4390 | struct drm_mode_object *obj; |
4391 | struct drm_property_blob *blob = NULL; | |
6bcacf51 | 4392 | |
152ef5fa DV |
4393 | obj = _object_find(dev, id, DRM_MODE_OBJECT_BLOB); |
4394 | if (obj) | |
4395 | blob = obj_to_blob(obj); | |
6bcacf51 DS |
4396 | return blob; |
4397 | } | |
4398 | EXPORT_SYMBOL(drm_property_lookup_blob); | |
4399 | ||
d2ed3436 DS |
4400 | /** |
4401 | * drm_property_replace_global_blob - atomically replace existing blob property | |
4402 | * @dev: drm device | |
4403 | * @replace: location of blob property pointer to be replaced | |
4404 | * @length: length of data for new blob, or 0 for no data | |
4405 | * @data: content for new blob, or NULL for no data | |
4406 | * @obj_holds_id: optional object for property holding blob ID | |
4407 | * @prop_holds_id: optional property holding blob ID | |
4408 | * @return 0 on success or error on failure | |
4409 | * | |
4410 | * This function will atomically replace a global property in the blob list, | |
4411 | * optionally updating a property which holds the ID of that property. It is | |
4412 | * guaranteed to be atomic: no caller will be allowed to see intermediate | |
4413 | * results, and either the entire operation will succeed and clean up the | |
4414 | * previous property, or it will fail and the state will be unchanged. | |
4415 | * | |
4416 | * If length is 0 or data is NULL, no new blob will be created, and the holding | |
4417 | * property, if specified, will be set to 0. | |
4418 | * | |
4419 | * Access to the replace pointer is assumed to be protected by the caller, e.g. | |
4420 | * by holding the relevant modesetting object lock for its parent. | |
4421 | * | |
4422 | * For example, a drm_connector has a 'PATH' property, which contains the ID | |
4423 | * of a blob property with the value of the MST path information. Calling this | |
4424 | * function with replace pointing to the connector's path_blob_ptr, length and | |
4425 | * data set for the new path information, obj_holds_id set to the connector's | |
4426 | * base object, and prop_holds_id set to the path property name, will perform | |
4427 | * a completely atomic update. The access to path_blob_ptr is protected by the | |
4428 | * caller holding a lock on the connector. | |
4429 | */ | |
4430 | static int drm_property_replace_global_blob(struct drm_device *dev, | |
4431 | struct drm_property_blob **replace, | |
4432 | size_t length, | |
4433 | const void *data, | |
4434 | struct drm_mode_object *obj_holds_id, | |
4435 | struct drm_property *prop_holds_id) | |
4436 | { | |
4437 | struct drm_property_blob *new_blob = NULL; | |
4438 | struct drm_property_blob *old_blob = NULL; | |
4439 | int ret; | |
4440 | ||
4441 | WARN_ON(replace == NULL); | |
4442 | ||
4443 | old_blob = *replace; | |
4444 | ||
4445 | if (length && data) { | |
4446 | new_blob = drm_property_create_blob(dev, length, data); | |
10e8cb7e DS |
4447 | if (IS_ERR(new_blob)) |
4448 | return PTR_ERR(new_blob); | |
d2ed3436 DS |
4449 | } |
4450 | ||
4451 | /* This does not need to be synchronised with blob_lock, as the | |
4452 | * get_properties ioctl locks all modesetting objects, and | |
4453 | * obj_holds_id must be locked before calling here, so we cannot | |
4454 | * have its value out of sync with the list membership modified | |
4455 | * below under blob_lock. */ | |
4456 | if (obj_holds_id) { | |
4457 | ret = drm_object_property_set_value(obj_holds_id, | |
4458 | prop_holds_id, | |
4459 | new_blob ? | |
4460 | new_blob->base.id : 0); | |
4461 | if (ret != 0) | |
4462 | goto err_created; | |
4463 | } | |
4464 | ||
ec530829 | 4465 | drm_property_unreference_blob(old_blob); |
d2ed3436 DS |
4466 | *replace = new_blob; |
4467 | ||
4468 | return 0; | |
4469 | ||
4470 | err_created: | |
6bcacf51 | 4471 | drm_property_unreference_blob(new_blob); |
d2ed3436 DS |
4472 | return ret; |
4473 | } | |
4474 | ||
c8e32cc1 DV |
4475 | /** |
4476 | * drm_mode_getblob_ioctl - get the contents of a blob property value | |
4477 | * @dev: DRM device | |
4478 | * @data: ioctl data | |
4479 | * @file_priv: DRM file info | |
4480 | * | |
4481 | * This function retrieves the contents of a blob property. The value stored in | |
4482 | * an object's blob property is just a normal modeset object id. | |
4483 | * | |
4484 | * Called by the user via ioctl. | |
4485 | * | |
4486 | * Returns: | |
1a498633 | 4487 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4488 | */ |
f453ba04 DA |
4489 | int drm_mode_getblob_ioctl(struct drm_device *dev, |
4490 | void *data, struct drm_file *file_priv) | |
4491 | { | |
f453ba04 DA |
4492 | struct drm_mode_get_blob *out_resp = data; |
4493 | struct drm_property_blob *blob; | |
4494 | int ret = 0; | |
81f6c7f8 | 4495 | void __user *blob_ptr; |
f453ba04 | 4496 | |
fb3b06c8 DA |
4497 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4498 | return -EINVAL; | |
4499 | ||
152ef5fa DV |
4500 | blob = drm_property_lookup_blob(dev, out_resp->blob_id); |
4501 | if (!blob) | |
4502 | return -ENOENT; | |
f453ba04 DA |
4503 | |
4504 | if (out_resp->length == blob->length) { | |
81f6c7f8 | 4505 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
4dfd909f | 4506 | if (copy_to_user(blob_ptr, blob->data, blob->length)) { |
f453ba04 | 4507 | ret = -EFAULT; |
152ef5fa | 4508 | goto unref; |
f453ba04 DA |
4509 | } |
4510 | } | |
4511 | out_resp->length = blob->length; | |
152ef5fa DV |
4512 | unref: |
4513 | drm_property_unreference_blob(blob); | |
f453ba04 | 4514 | |
f453ba04 DA |
4515 | return ret; |
4516 | } | |
4517 | ||
e2f5d2ea DS |
4518 | /** |
4519 | * drm_mode_createblob_ioctl - create a new blob property | |
4520 | * @dev: DRM device | |
4521 | * @data: ioctl data | |
4522 | * @file_priv: DRM file info | |
4523 | * | |
4524 | * This function creates a new blob property with user-defined values. In order | |
4525 | * to give us sensible validation and checking when creating, rather than at | |
4526 | * every potential use, we also require a type to be provided upfront. | |
4527 | * | |
4528 | * Called by the user via ioctl. | |
4529 | * | |
4530 | * Returns: | |
4531 | * Zero on success, negative errno on failure. | |
4532 | */ | |
4533 | int drm_mode_createblob_ioctl(struct drm_device *dev, | |
4534 | void *data, struct drm_file *file_priv) | |
4535 | { | |
4536 | struct drm_mode_create_blob *out_resp = data; | |
4537 | struct drm_property_blob *blob; | |
4538 | void __user *blob_ptr; | |
4539 | int ret = 0; | |
4540 | ||
4541 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4542 | return -EINVAL; | |
4543 | ||
4544 | blob = drm_property_create_blob(dev, out_resp->length, NULL); | |
4545 | if (IS_ERR(blob)) | |
4546 | return PTR_ERR(blob); | |
4547 | ||
4548 | blob_ptr = (void __user *)(unsigned long)out_resp->data; | |
4549 | if (copy_from_user(blob->data, blob_ptr, out_resp->length)) { | |
4550 | ret = -EFAULT; | |
4551 | goto out_blob; | |
4552 | } | |
4553 | ||
4554 | /* Dropping the lock between create_blob and our access here is safe | |
4555 | * as only the same file_priv can remove the blob; at this point, it is | |
4556 | * not associated with any file_priv. */ | |
4557 | mutex_lock(&dev->mode_config.blob_lock); | |
4558 | out_resp->blob_id = blob->base.id; | |
8731b269 | 4559 | list_add_tail(&blob->head_file, &file_priv->blobs); |
e2f5d2ea DS |
4560 | mutex_unlock(&dev->mode_config.blob_lock); |
4561 | ||
4562 | return 0; | |
4563 | ||
4564 | out_blob: | |
4565 | drm_property_unreference_blob(blob); | |
4566 | return ret; | |
4567 | } | |
4568 | ||
4569 | /** | |
4570 | * drm_mode_destroyblob_ioctl - destroy a user blob property | |
4571 | * @dev: DRM device | |
4572 | * @data: ioctl data | |
4573 | * @file_priv: DRM file info | |
4574 | * | |
4575 | * Destroy an existing user-defined blob property. | |
4576 | * | |
4577 | * Called by the user via ioctl. | |
4578 | * | |
4579 | * Returns: | |
4580 | * Zero on success, negative errno on failure. | |
4581 | */ | |
4582 | int drm_mode_destroyblob_ioctl(struct drm_device *dev, | |
4583 | void *data, struct drm_file *file_priv) | |
4584 | { | |
4585 | struct drm_mode_destroy_blob *out_resp = data; | |
4586 | struct drm_property_blob *blob = NULL, *bt; | |
4587 | bool found = false; | |
4588 | int ret = 0; | |
4589 | ||
4590 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4591 | return -EINVAL; | |
4592 | ||
152ef5fa DV |
4593 | blob = drm_property_lookup_blob(dev, out_resp->blob_id); |
4594 | if (!blob) | |
4595 | return -ENOENT; | |
e2f5d2ea | 4596 | |
152ef5fa | 4597 | mutex_lock(&dev->mode_config.blob_lock); |
e2f5d2ea DS |
4598 | /* Ensure the property was actually created by this user. */ |
4599 | list_for_each_entry(bt, &file_priv->blobs, head_file) { | |
4600 | if (bt == blob) { | |
4601 | found = true; | |
4602 | break; | |
4603 | } | |
4604 | } | |
4605 | ||
4606 | if (!found) { | |
4607 | ret = -EPERM; | |
4608 | goto err; | |
4609 | } | |
4610 | ||
4611 | /* We must drop head_file here, because we may not be the last | |
4612 | * reference on the blob. */ | |
4613 | list_del_init(&blob->head_file); | |
e2f5d2ea DS |
4614 | mutex_unlock(&dev->mode_config.blob_lock); |
4615 | ||
152ef5fa DV |
4616 | /* One reference from lookup, and one from the filp. */ |
4617 | drm_property_unreference_blob(blob); | |
4618 | drm_property_unreference_blob(blob); | |
4619 | ||
e2f5d2ea DS |
4620 | return 0; |
4621 | ||
4622 | err: | |
4623 | mutex_unlock(&dev->mode_config.blob_lock); | |
152ef5fa DV |
4624 | drm_property_unreference_blob(blob); |
4625 | ||
e2f5d2ea DS |
4626 | return ret; |
4627 | } | |
4628 | ||
cc7096fb DA |
4629 | /** |
4630 | * drm_mode_connector_set_path_property - set tile property on connector | |
4631 | * @connector: connector to set property on. | |
d2ed3436 | 4632 | * @path: path to use for property; must not be NULL. |
cc7096fb DA |
4633 | * |
4634 | * This creates a property to expose to userspace to specify a | |
4635 | * connector path. This is mainly used for DisplayPort MST where | |
4636 | * connectors have a topology and we want to allow userspace to give | |
4637 | * them more meaningful names. | |
4638 | * | |
4639 | * Returns: | |
1a498633 | 4640 | * Zero on success, negative errno on failure. |
cc7096fb | 4641 | */ |
43aba7eb | 4642 | int drm_mode_connector_set_path_property(struct drm_connector *connector, |
12e6cecd | 4643 | const char *path) |
43aba7eb DA |
4644 | { |
4645 | struct drm_device *dev = connector->dev; | |
ecbbe59b | 4646 | int ret; |
43aba7eb | 4647 | |
d2ed3436 DS |
4648 | ret = drm_property_replace_global_blob(dev, |
4649 | &connector->path_blob_ptr, | |
4650 | strlen(path) + 1, | |
4651 | path, | |
4652 | &connector->base, | |
4653 | dev->mode_config.path_property); | |
43aba7eb DA |
4654 | return ret; |
4655 | } | |
4656 | EXPORT_SYMBOL(drm_mode_connector_set_path_property); | |
4657 | ||
6f134d7b DA |
4658 | /** |
4659 | * drm_mode_connector_set_tile_property - set tile property on connector | |
4660 | * @connector: connector to set property on. | |
4661 | * | |
4662 | * This looks up the tile information for a connector, and creates a | |
4663 | * property for userspace to parse if it exists. The property is of | |
4664 | * the form of 8 integers using ':' as a separator. | |
4665 | * | |
4666 | * Returns: | |
4667 | * Zero on success, errno on failure. | |
4668 | */ | |
4669 | int drm_mode_connector_set_tile_property(struct drm_connector *connector) | |
4670 | { | |
4671 | struct drm_device *dev = connector->dev; | |
6f134d7b | 4672 | char tile[256]; |
d2ed3436 | 4673 | int ret; |
6f134d7b DA |
4674 | |
4675 | if (!connector->has_tile) { | |
d2ed3436 DS |
4676 | ret = drm_property_replace_global_blob(dev, |
4677 | &connector->tile_blob_ptr, | |
4678 | 0, | |
4679 | NULL, | |
4680 | &connector->base, | |
4681 | dev->mode_config.tile_property); | |
6f134d7b DA |
4682 | return ret; |
4683 | } | |
4684 | ||
4685 | snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d", | |
4686 | connector->tile_group->id, connector->tile_is_single_monitor, | |
4687 | connector->num_h_tile, connector->num_v_tile, | |
4688 | connector->tile_h_loc, connector->tile_v_loc, | |
4689 | connector->tile_h_size, connector->tile_v_size); | |
6f134d7b | 4690 | |
d2ed3436 DS |
4691 | ret = drm_property_replace_global_blob(dev, |
4692 | &connector->tile_blob_ptr, | |
4693 | strlen(tile) + 1, | |
4694 | tile, | |
4695 | &connector->base, | |
4696 | dev->mode_config.tile_property); | |
6f134d7b DA |
4697 | return ret; |
4698 | } | |
4699 | EXPORT_SYMBOL(drm_mode_connector_set_tile_property); | |
4700 | ||
c8e32cc1 DV |
4701 | /** |
4702 | * drm_mode_connector_update_edid_property - update the edid property of a connector | |
4703 | * @connector: drm connector | |
4704 | * @edid: new value of the edid property | |
4705 | * | |
4706 | * This function creates a new blob modeset object and assigns its id to the | |
4707 | * connector's edid property. | |
4708 | * | |
4709 | * Returns: | |
1a498633 | 4710 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4711 | */ |
f453ba04 | 4712 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
12e6cecd | 4713 | const struct edid *edid) |
f453ba04 DA |
4714 | { |
4715 | struct drm_device *dev = connector->dev; | |
d2ed3436 | 4716 | size_t size = 0; |
ecbbe59b | 4717 | int ret; |
f453ba04 | 4718 | |
4cf2b281 TW |
4719 | /* ignore requests to set edid when overridden */ |
4720 | if (connector->override_edid) | |
4721 | return 0; | |
4722 | ||
d2ed3436 | 4723 | if (edid) |
e24ff467 | 4724 | size = EDID_LENGTH * (1 + edid->extensions); |
f453ba04 | 4725 | |
d2ed3436 DS |
4726 | ret = drm_property_replace_global_blob(dev, |
4727 | &connector->edid_blob_ptr, | |
4728 | size, | |
4729 | edid, | |
4730 | &connector->base, | |
4731 | dev->mode_config.edid_property); | |
f453ba04 DA |
4732 | return ret; |
4733 | } | |
4734 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); | |
4735 | ||
3843e71f RC |
4736 | /* Some properties could refer to dynamic refcnt'd objects, or things that |
4737 | * need special locking to handle lifetime issues (ie. to ensure the prop | |
4738 | * value doesn't become invalid part way through the property update due to | |
4739 | * race). The value returned by reference via 'obj' should be passed back | |
4740 | * to drm_property_change_valid_put() after the property is set (and the | |
4741 | * object to which the property is attached has a chance to take it's own | |
4742 | * reference). | |
4743 | */ | |
d34f20d6 | 4744 | bool drm_property_change_valid_get(struct drm_property *property, |
3843e71f | 4745 | uint64_t value, struct drm_mode_object **ref) |
26a34815 | 4746 | { |
2ca651d1 TR |
4747 | int i; |
4748 | ||
26a34815 PZ |
4749 | if (property->flags & DRM_MODE_PROP_IMMUTABLE) |
4750 | return false; | |
5ea22f24 | 4751 | |
3843e71f RC |
4752 | *ref = NULL; |
4753 | ||
5ea22f24 | 4754 | if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) { |
26a34815 PZ |
4755 | if (value < property->values[0] || value > property->values[1]) |
4756 | return false; | |
4757 | return true; | |
ebc44cf3 RC |
4758 | } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) { |
4759 | int64_t svalue = U642I64(value); | |
4dfd909f | 4760 | |
ebc44cf3 RC |
4761 | if (svalue < U642I64(property->values[0]) || |
4762 | svalue > U642I64(property->values[1])) | |
4763 | return false; | |
4764 | return true; | |
5ea22f24 | 4765 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
592c20ee | 4766 | uint64_t valid_mask = 0; |
4dfd909f | 4767 | |
49e27545 RC |
4768 | for (i = 0; i < property->num_values; i++) |
4769 | valid_mask |= (1ULL << property->values[i]); | |
4770 | return !(value & ~valid_mask); | |
5ea22f24 | 4771 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
6bcacf51 DS |
4772 | struct drm_property_blob *blob; |
4773 | ||
4774 | if (value == 0) | |
4775 | return true; | |
4776 | ||
4777 | blob = drm_property_lookup_blob(property->dev, value); | |
4778 | if (blob) { | |
4779 | *ref = &blob->base; | |
4780 | return true; | |
4781 | } else { | |
4782 | return false; | |
4783 | } | |
98f75de4 | 4784 | } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { |
98f75de4 RC |
4785 | /* a zero value for an object property translates to null: */ |
4786 | if (value == 0) | |
4787 | return true; | |
3843e71f | 4788 | |
1e8985a8 TV |
4789 | *ref = _object_find(property->dev, value, property->values[0]); |
4790 | return *ref != NULL; | |
26a34815 | 4791 | } |
2ca651d1 TR |
4792 | |
4793 | for (i = 0; i < property->num_values; i++) | |
4794 | if (property->values[i] == value) | |
4795 | return true; | |
4796 | return false; | |
26a34815 PZ |
4797 | } |
4798 | ||
d34f20d6 | 4799 | void drm_property_change_valid_put(struct drm_property *property, |
3843e71f RC |
4800 | struct drm_mode_object *ref) |
4801 | { | |
4802 | if (!ref) | |
4803 | return; | |
4804 | ||
4805 | if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { | |
027b3f8b | 4806 | drm_mode_object_unreference(ref); |
da9b2a38 DS |
4807 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) |
4808 | drm_property_unreference_blob(obj_to_blob(ref)); | |
3843e71f RC |
4809 | } |
4810 | ||
c8e32cc1 DV |
4811 | /** |
4812 | * drm_mode_connector_property_set_ioctl - set the current value of a connector property | |
4813 | * @dev: DRM device | |
4814 | * @data: ioctl data | |
4815 | * @file_priv: DRM file info | |
4816 | * | |
4817 | * This function sets the current value for a connectors's property. It also | |
4818 | * calls into a driver's ->set_property callback to update the hardware state | |
4819 | * | |
4820 | * Called by the user via ioctl. | |
4821 | * | |
4822 | * Returns: | |
1a498633 | 4823 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4824 | */ |
f453ba04 DA |
4825 | int drm_mode_connector_property_set_ioctl(struct drm_device *dev, |
4826 | void *data, struct drm_file *file_priv) | |
4827 | { | |
0057d8dd PZ |
4828 | struct drm_mode_connector_set_property *conn_set_prop = data; |
4829 | struct drm_mode_obj_set_property obj_set_prop = { | |
4830 | .value = conn_set_prop->value, | |
4831 | .prop_id = conn_set_prop->prop_id, | |
4832 | .obj_id = conn_set_prop->connector_id, | |
4833 | .obj_type = DRM_MODE_OBJECT_CONNECTOR | |
4834 | }; | |
fb3b06c8 | 4835 | |
0057d8dd PZ |
4836 | /* It does all the locking and checking we need */ |
4837 | return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); | |
f453ba04 DA |
4838 | } |
4839 | ||
c543188a PZ |
4840 | static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, |
4841 | struct drm_property *property, | |
4842 | uint64_t value) | |
4843 | { | |
4844 | int ret = -EINVAL; | |
4845 | struct drm_connector *connector = obj_to_connector(obj); | |
4846 | ||
4847 | /* Do DPMS ourselves */ | |
4848 | if (property == connector->dev->mode_config.dpms_property) { | |
3558c112 | 4849 | ret = (*connector->funcs->dpms)(connector, (int)value); |
c543188a PZ |
4850 | } else if (connector->funcs->set_property) |
4851 | ret = connector->funcs->set_property(connector, property, value); | |
4852 | ||
4853 | /* store the property value if successful */ | |
4854 | if (!ret) | |
58495563 | 4855 | drm_object_property_set_value(&connector->base, property, value); |
c543188a PZ |
4856 | return ret; |
4857 | } | |
4858 | ||
bffd9de0 PZ |
4859 | static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
4860 | struct drm_property *property, | |
4861 | uint64_t value) | |
4862 | { | |
4863 | int ret = -EINVAL; | |
4864 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
4865 | ||
4866 | if (crtc->funcs->set_property) | |
4867 | ret = crtc->funcs->set_property(crtc, property, value); | |
4868 | if (!ret) | |
4869 | drm_object_property_set_value(obj, property, value); | |
4870 | ||
4871 | return ret; | |
4872 | } | |
4873 | ||
3a5f87c2 TW |
4874 | /** |
4875 | * drm_mode_plane_set_obj_prop - set the value of a property | |
4876 | * @plane: drm plane object to set property value for | |
4877 | * @property: property to set | |
4878 | * @value: value the property should be set to | |
4879 | * | |
4880 | * This functions sets a given property on a given plane object. This function | |
4881 | * calls the driver's ->set_property callback and changes the software state of | |
4882 | * the property if the callback succeeds. | |
4883 | * | |
4884 | * Returns: | |
4885 | * Zero on success, error code on failure. | |
4886 | */ | |
4887 | int drm_mode_plane_set_obj_prop(struct drm_plane *plane, | |
4888 | struct drm_property *property, | |
4889 | uint64_t value) | |
4d93914a RC |
4890 | { |
4891 | int ret = -EINVAL; | |
3a5f87c2 | 4892 | struct drm_mode_object *obj = &plane->base; |
4d93914a RC |
4893 | |
4894 | if (plane->funcs->set_property) | |
4895 | ret = plane->funcs->set_property(plane, property, value); | |
4896 | if (!ret) | |
4897 | drm_object_property_set_value(obj, property, value); | |
4898 | ||
4899 | return ret; | |
4900 | } | |
3a5f87c2 | 4901 | EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); |
4d93914a | 4902 | |
c8e32cc1 | 4903 | /** |
1a498633 | 4904 | * drm_mode_obj_get_properties_ioctl - get the current value of a object's property |
c8e32cc1 DV |
4905 | * @dev: DRM device |
4906 | * @data: ioctl data | |
4907 | * @file_priv: DRM file info | |
4908 | * | |
4909 | * This function retrieves the current value for an object's property. Compared | |
4910 | * to the connector specific ioctl this one is extended to also work on crtc and | |
4911 | * plane objects. | |
4912 | * | |
4913 | * Called by the user via ioctl. | |
4914 | * | |
4915 | * Returns: | |
1a498633 | 4916 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4917 | */ |
c543188a PZ |
4918 | int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
4919 | struct drm_file *file_priv) | |
4920 | { | |
4921 | struct drm_mode_obj_get_properties *arg = data; | |
4922 | struct drm_mode_object *obj; | |
4923 | int ret = 0; | |
c543188a PZ |
4924 | |
4925 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4926 | return -EINVAL; | |
4927 | ||
84849903 | 4928 | drm_modeset_lock_all(dev); |
c543188a PZ |
4929 | |
4930 | obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
4931 | if (!obj) { | |
f27657f2 | 4932 | ret = -ENOENT; |
c543188a PZ |
4933 | goto out; |
4934 | } | |
4935 | if (!obj->properties) { | |
4936 | ret = -EINVAL; | |
1649c33b | 4937 | goto out_unref; |
c543188a PZ |
4938 | } |
4939 | ||
88a48e29 | 4940 | ret = get_properties(obj, file_priv->atomic, |
95cbf110 RC |
4941 | (uint32_t __user *)(unsigned long)(arg->props_ptr), |
4942 | (uint64_t __user *)(unsigned long)(arg->prop_values_ptr), | |
4943 | &arg->count_props); | |
c543188a | 4944 | |
1649c33b DV |
4945 | out_unref: |
4946 | drm_mode_object_unreference(obj); | |
c543188a | 4947 | out: |
84849903 | 4948 | drm_modeset_unlock_all(dev); |
c543188a PZ |
4949 | return ret; |
4950 | } | |
4951 | ||
c8e32cc1 DV |
4952 | /** |
4953 | * drm_mode_obj_set_property_ioctl - set the current value of an object's property | |
4954 | * @dev: DRM device | |
4955 | * @data: ioctl data | |
4956 | * @file_priv: DRM file info | |
4957 | * | |
4958 | * This function sets the current value for an object's property. It also calls | |
4959 | * into a driver's ->set_property callback to update the hardware state. | |
4960 | * Compared to the connector specific ioctl this one is extended to also work on | |
4961 | * crtc and plane objects. | |
4962 | * | |
4963 | * Called by the user via ioctl. | |
4964 | * | |
4965 | * Returns: | |
1a498633 | 4966 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4967 | */ |
c543188a PZ |
4968 | int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, |
4969 | struct drm_file *file_priv) | |
4970 | { | |
4971 | struct drm_mode_obj_set_property *arg = data; | |
4972 | struct drm_mode_object *arg_obj; | |
4973 | struct drm_mode_object *prop_obj; | |
4974 | struct drm_property *property; | |
3843e71f RC |
4975 | int i, ret = -EINVAL; |
4976 | struct drm_mode_object *ref; | |
c543188a PZ |
4977 | |
4978 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4979 | return -EINVAL; | |
4980 | ||
84849903 | 4981 | drm_modeset_lock_all(dev); |
c543188a PZ |
4982 | |
4983 | arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
f27657f2 VS |
4984 | if (!arg_obj) { |
4985 | ret = -ENOENT; | |
c543188a | 4986 | goto out; |
f27657f2 | 4987 | } |
c543188a | 4988 | if (!arg_obj->properties) |
1649c33b | 4989 | goto out_unref; |
c543188a | 4990 | |
7f88a9be | 4991 | for (i = 0; i < arg_obj->properties->count; i++) |
b17cd757 | 4992 | if (arg_obj->properties->properties[i]->base.id == arg->prop_id) |
c543188a PZ |
4993 | break; |
4994 | ||
7f88a9be | 4995 | if (i == arg_obj->properties->count) |
1649c33b | 4996 | goto out_unref; |
c543188a PZ |
4997 | |
4998 | prop_obj = drm_mode_object_find(dev, arg->prop_id, | |
4999 | DRM_MODE_OBJECT_PROPERTY); | |
f27657f2 VS |
5000 | if (!prop_obj) { |
5001 | ret = -ENOENT; | |
1649c33b | 5002 | goto out_unref; |
f27657f2 | 5003 | } |
c543188a PZ |
5004 | property = obj_to_property(prop_obj); |
5005 | ||
3843e71f | 5006 | if (!drm_property_change_valid_get(property, arg->value, &ref)) |
b164d31f | 5007 | goto out_unref; |
c543188a PZ |
5008 | |
5009 | switch (arg_obj->type) { | |
5010 | case DRM_MODE_OBJECT_CONNECTOR: | |
5011 | ret = drm_mode_connector_set_obj_prop(arg_obj, property, | |
5012 | arg->value); | |
5013 | break; | |
bffd9de0 PZ |
5014 | case DRM_MODE_OBJECT_CRTC: |
5015 | ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); | |
5016 | break; | |
4d93914a | 5017 | case DRM_MODE_OBJECT_PLANE: |
3a5f87c2 TW |
5018 | ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj), |
5019 | property, arg->value); | |
4d93914a | 5020 | break; |
c543188a PZ |
5021 | } |
5022 | ||
3843e71f RC |
5023 | drm_property_change_valid_put(property, ref); |
5024 | ||
1649c33b DV |
5025 | out_unref: |
5026 | drm_mode_object_unreference(arg_obj); | |
c543188a | 5027 | out: |
84849903 | 5028 | drm_modeset_unlock_all(dev); |
c543188a PZ |
5029 | return ret; |
5030 | } | |
5031 | ||
c8e32cc1 DV |
5032 | /** |
5033 | * drm_mode_connector_attach_encoder - attach a connector to an encoder | |
5034 | * @connector: connector to attach | |
5035 | * @encoder: encoder to attach @connector to | |
5036 | * | |
5037 | * This function links up a connector to an encoder. Note that the routing | |
5038 | * restrictions between encoders and crtcs are exposed to userspace through the | |
5039 | * possible_clones and possible_crtcs bitmasks. | |
5040 | * | |
5041 | * Returns: | |
1a498633 | 5042 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5043 | */ |
f453ba04 DA |
5044 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
5045 | struct drm_encoder *encoder) | |
5046 | { | |
5047 | int i; | |
5048 | ||
eb47fe80 TR |
5049 | /* |
5050 | * In the past, drivers have attempted to model the static association | |
5051 | * of connector to encoder in simple connector/encoder devices using a | |
5052 | * direct assignment of connector->encoder = encoder. This connection | |
5053 | * is a logical one and the responsibility of the core, so drivers are | |
5054 | * expected not to mess with this. | |
5055 | * | |
5056 | * Note that the error return should've been enough here, but a large | |
5057 | * majority of drivers ignores the return value, so add in a big WARN | |
5058 | * to get people's attention. | |
5059 | */ | |
5060 | if (WARN_ON(connector->encoder)) | |
5061 | return -EINVAL; | |
5062 | ||
f453ba04 DA |
5063 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
5064 | if (connector->encoder_ids[i] == 0) { | |
5065 | connector->encoder_ids[i] = encoder->base.id; | |
5066 | return 0; | |
5067 | } | |
5068 | } | |
5069 | return -ENOMEM; | |
5070 | } | |
5071 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); | |
5072 | ||
c8e32cc1 DV |
5073 | /** |
5074 | * drm_mode_crtc_set_gamma_size - set the gamma table size | |
5075 | * @crtc: CRTC to set the gamma table size for | |
5076 | * @gamma_size: size of the gamma table | |
5077 | * | |
5078 | * Drivers which support gamma tables should set this to the supported gamma | |
5079 | * table size when initializing the CRTC. Currently the drm core only supports a | |
5080 | * fixed gamma table size. | |
5081 | * | |
5082 | * Returns: | |
1a498633 | 5083 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5084 | */ |
4cae5b84 | 5085 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
c8e32cc1 | 5086 | int gamma_size) |
f453ba04 | 5087 | { |
cf48e292 DV |
5088 | uint16_t *r_base, *g_base, *b_base; |
5089 | int i; | |
5090 | ||
f453ba04 DA |
5091 | crtc->gamma_size = gamma_size; |
5092 | ||
bd3f0ff9 TR |
5093 | crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3, |
5094 | GFP_KERNEL); | |
f453ba04 DA |
5095 | if (!crtc->gamma_store) { |
5096 | crtc->gamma_size = 0; | |
4cae5b84 | 5097 | return -ENOMEM; |
f453ba04 DA |
5098 | } |
5099 | ||
cf48e292 DV |
5100 | r_base = crtc->gamma_store; |
5101 | g_base = r_base + gamma_size; | |
5102 | b_base = g_base + gamma_size; | |
5103 | for (i = 0; i < gamma_size; i++) { | |
5104 | r_base[i] = i << 8; | |
5105 | g_base[i] = i << 8; | |
5106 | b_base[i] = i << 8; | |
5107 | } | |
5108 | ||
5109 | ||
4cae5b84 | 5110 | return 0; |
f453ba04 DA |
5111 | } |
5112 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); | |
5113 | ||
c8e32cc1 DV |
5114 | /** |
5115 | * drm_mode_gamma_set_ioctl - set the gamma table | |
5116 | * @dev: DRM device | |
5117 | * @data: ioctl data | |
5118 | * @file_priv: DRM file info | |
5119 | * | |
5120 | * Set the gamma table of a CRTC to the one passed in by the user. Userspace can | |
5121 | * inquire the required gamma table size through drm_mode_gamma_get_ioctl. | |
5122 | * | |
5123 | * Called by the user via ioctl. | |
5124 | * | |
5125 | * Returns: | |
1a498633 | 5126 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5127 | */ |
f453ba04 DA |
5128 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
5129 | void *data, struct drm_file *file_priv) | |
5130 | { | |
5131 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
5132 | struct drm_crtc *crtc; |
5133 | void *r_base, *g_base, *b_base; | |
5134 | int size; | |
5135 | int ret = 0; | |
5136 | ||
fb3b06c8 DA |
5137 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
5138 | return -EINVAL; | |
5139 | ||
84849903 | 5140 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
5141 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
5142 | if (!crtc) { | |
f27657f2 | 5143 | ret = -ENOENT; |
f453ba04 DA |
5144 | goto out; |
5145 | } | |
f453ba04 | 5146 | |
ebe0f244 LP |
5147 | if (crtc->funcs->gamma_set == NULL) { |
5148 | ret = -ENOSYS; | |
5149 | goto out; | |
5150 | } | |
5151 | ||
f453ba04 DA |
5152 | /* memcpy into gamma store */ |
5153 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
5154 | ret = -EINVAL; | |
5155 | goto out; | |
5156 | } | |
5157 | ||
5158 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
5159 | r_base = crtc->gamma_store; | |
5160 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { | |
5161 | ret = -EFAULT; | |
5162 | goto out; | |
5163 | } | |
5164 | ||
5165 | g_base = r_base + size; | |
5166 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { | |
5167 | ret = -EFAULT; | |
5168 | goto out; | |
5169 | } | |
5170 | ||
5171 | b_base = g_base + size; | |
5172 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { | |
5173 | ret = -EFAULT; | |
5174 | goto out; | |
5175 | } | |
5176 | ||
7ea77283 | 5177 | ret = crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size); |
f453ba04 DA |
5178 | |
5179 | out: | |
84849903 | 5180 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
5181 | return ret; |
5182 | ||
5183 | } | |
5184 | ||
c8e32cc1 DV |
5185 | /** |
5186 | * drm_mode_gamma_get_ioctl - get the gamma table | |
5187 | * @dev: DRM device | |
5188 | * @data: ioctl data | |
5189 | * @file_priv: DRM file info | |
5190 | * | |
5191 | * Copy the current gamma table into the storage provided. This also provides | |
5192 | * the gamma table size the driver expects, which can be used to size the | |
5193 | * allocated storage. | |
5194 | * | |
5195 | * Called by the user via ioctl. | |
5196 | * | |
5197 | * Returns: | |
1a498633 | 5198 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5199 | */ |
f453ba04 DA |
5200 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
5201 | void *data, struct drm_file *file_priv) | |
5202 | { | |
5203 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
5204 | struct drm_crtc *crtc; |
5205 | void *r_base, *g_base, *b_base; | |
5206 | int size; | |
5207 | int ret = 0; | |
5208 | ||
fb3b06c8 DA |
5209 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
5210 | return -EINVAL; | |
5211 | ||
84849903 | 5212 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
5213 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
5214 | if (!crtc) { | |
f27657f2 | 5215 | ret = -ENOENT; |
f453ba04 DA |
5216 | goto out; |
5217 | } | |
f453ba04 DA |
5218 | |
5219 | /* memcpy into gamma store */ | |
5220 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
5221 | ret = -EINVAL; | |
5222 | goto out; | |
5223 | } | |
5224 | ||
5225 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
5226 | r_base = crtc->gamma_store; | |
5227 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { | |
5228 | ret = -EFAULT; | |
5229 | goto out; | |
5230 | } | |
5231 | ||
5232 | g_base = r_base + size; | |
5233 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { | |
5234 | ret = -EFAULT; | |
5235 | goto out; | |
5236 | } | |
5237 | ||
5238 | b_base = g_base + size; | |
5239 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { | |
5240 | ret = -EFAULT; | |
5241 | goto out; | |
5242 | } | |
5243 | out: | |
84849903 | 5244 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
5245 | return ret; |
5246 | } | |
d91d8a3f | 5247 | |
c8e32cc1 DV |
5248 | /** |
5249 | * drm_mode_page_flip_ioctl - schedule an asynchronous fb update | |
5250 | * @dev: DRM device | |
5251 | * @data: ioctl data | |
5252 | * @file_priv: DRM file info | |
5253 | * | |
5254 | * This schedules an asynchronous update on a given CRTC, called page flip. | |
5255 | * Optionally a drm event is generated to signal the completion of the event. | |
5256 | * Generic drivers cannot assume that a pageflip with changed framebuffer | |
5257 | * properties (including driver specific metadata like tiling layout) will work, | |
5258 | * but some drivers support e.g. pixel format changes through the pageflip | |
5259 | * ioctl. | |
5260 | * | |
5261 | * Called by the user via ioctl. | |
5262 | * | |
5263 | * Returns: | |
1a498633 | 5264 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5265 | */ |
d91d8a3f KH |
5266 | int drm_mode_page_flip_ioctl(struct drm_device *dev, |
5267 | void *data, struct drm_file *file_priv) | |
5268 | { | |
5269 | struct drm_mode_crtc_page_flip *page_flip = data; | |
d91d8a3f | 5270 | struct drm_crtc *crtc; |
3d30a59b | 5271 | struct drm_framebuffer *fb = NULL; |
d91d8a3f | 5272 | struct drm_pending_vblank_event *e = NULL; |
d91d8a3f KH |
5273 | int ret = -EINVAL; |
5274 | ||
5275 | if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || | |
5276 | page_flip->reserved != 0) | |
5277 | return -EINVAL; | |
5278 | ||
62f2104f KP |
5279 | if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) |
5280 | return -EINVAL; | |
5281 | ||
a2b34e22 RC |
5282 | crtc = drm_crtc_find(dev, page_flip->crtc_id); |
5283 | if (!crtc) | |
f27657f2 | 5284 | return -ENOENT; |
d91d8a3f | 5285 | |
4d02e2de | 5286 | drm_modeset_lock_crtc(crtc, crtc->primary); |
f4510a27 | 5287 | if (crtc->primary->fb == NULL) { |
90c1efdd CW |
5288 | /* The framebuffer is currently unbound, presumably |
5289 | * due to a hotplug event, that userspace has not | |
5290 | * yet discovered. | |
5291 | */ | |
5292 | ret = -EBUSY; | |
5293 | goto out; | |
5294 | } | |
5295 | ||
d91d8a3f KH |
5296 | if (crtc->funcs->page_flip == NULL) |
5297 | goto out; | |
5298 | ||
786b99ed | 5299 | fb = drm_framebuffer_lookup(dev, page_flip->fb_id); |
37c4e705 VS |
5300 | if (!fb) { |
5301 | ret = -ENOENT; | |
d91d8a3f | 5302 | goto out; |
37c4e705 | 5303 | } |
d91d8a3f | 5304 | |
2afa701d VS |
5305 | if (crtc->state) { |
5306 | const struct drm_plane_state *state = crtc->primary->state; | |
5307 | ||
5308 | ret = check_src_coords(state->src_x, state->src_y, | |
5309 | state->src_w, state->src_h, fb); | |
5310 | } else { | |
5311 | ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); | |
5312 | } | |
c11e9283 | 5313 | if (ret) |
5f61bb42 | 5314 | goto out; |
5f61bb42 | 5315 | |
f4510a27 | 5316 | if (crtc->primary->fb->pixel_format != fb->pixel_format) { |
909d9cda LP |
5317 | DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); |
5318 | ret = -EINVAL; | |
5319 | goto out; | |
5320 | } | |
5321 | ||
d91d8a3f | 5322 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
2dd500f1 DV |
5323 | e = kzalloc(sizeof *e, GFP_KERNEL); |
5324 | if (!e) { | |
5325 | ret = -ENOMEM; | |
d91d8a3f KH |
5326 | goto out; |
5327 | } | |
7bd4d7be | 5328 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; |
f76511b9 | 5329 | e->event.base.length = sizeof(e->event); |
d91d8a3f | 5330 | e->event.user_data = page_flip->user_data; |
2dd500f1 DV |
5331 | ret = drm_event_reserve_init(dev, file_priv, &e->base, &e->event.base); |
5332 | if (ret) { | |
5333 | kfree(e); | |
5334 | goto out; | |
5335 | } | |
d91d8a3f KH |
5336 | } |
5337 | ||
3d30a59b | 5338 | crtc->primary->old_fb = crtc->primary->fb; |
ed8d1975 | 5339 | ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); |
d91d8a3f | 5340 | if (ret) { |
2dd500f1 DV |
5341 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) |
5342 | drm_event_cancel_free(dev, &e->base); | |
b0d12325 | 5343 | /* Keep the old fb, don't unref it. */ |
3d30a59b | 5344 | crtc->primary->old_fb = NULL; |
b0d12325 | 5345 | } else { |
3cb43cc0 | 5346 | crtc->primary->fb = fb; |
b0d12325 DV |
5347 | /* Unref only the old framebuffer. */ |
5348 | fb = NULL; | |
d91d8a3f KH |
5349 | } |
5350 | ||
5351 | out: | |
b0d12325 DV |
5352 | if (fb) |
5353 | drm_framebuffer_unreference(fb); | |
3d30a59b DV |
5354 | if (crtc->primary->old_fb) |
5355 | drm_framebuffer_unreference(crtc->primary->old_fb); | |
5356 | crtc->primary->old_fb = NULL; | |
d059f652 | 5357 | drm_modeset_unlock_crtc(crtc); |
b4d5e7d1 | 5358 | |
d91d8a3f KH |
5359 | return ret; |
5360 | } | |
eb033556 | 5361 | |
c8e32cc1 DV |
5362 | /** |
5363 | * drm_mode_config_reset - call ->reset callbacks | |
5364 | * @dev: drm device | |
5365 | * | |
5366 | * This functions calls all the crtc's, encoder's and connector's ->reset | |
5367 | * callback. Drivers can use this in e.g. their driver load or resume code to | |
5368 | * reset hardware and software state. | |
5369 | */ | |
eb033556 CW |
5370 | void drm_mode_config_reset(struct drm_device *dev) |
5371 | { | |
5372 | struct drm_crtc *crtc; | |
2a0d7cfd | 5373 | struct drm_plane *plane; |
eb033556 CW |
5374 | struct drm_encoder *encoder; |
5375 | struct drm_connector *connector; | |
5376 | ||
e4f62546 | 5377 | drm_for_each_plane(plane, dev) |
2a0d7cfd DV |
5378 | if (plane->funcs->reset) |
5379 | plane->funcs->reset(plane); | |
5380 | ||
e4f62546 | 5381 | drm_for_each_crtc(crtc, dev) |
eb033556 CW |
5382 | if (crtc->funcs->reset) |
5383 | crtc->funcs->reset(crtc); | |
5384 | ||
e4f62546 | 5385 | drm_for_each_encoder(encoder, dev) |
eb033556 CW |
5386 | if (encoder->funcs->reset) |
5387 | encoder->funcs->reset(encoder); | |
5388 | ||
f8c2ba31 | 5389 | mutex_lock(&dev->mode_config.mutex); |
4eebf60b | 5390 | drm_for_each_connector(connector, dev) |
eb033556 CW |
5391 | if (connector->funcs->reset) |
5392 | connector->funcs->reset(connector); | |
f8c2ba31 | 5393 | mutex_unlock(&dev->mode_config.mutex); |
eb033556 CW |
5394 | } |
5395 | EXPORT_SYMBOL(drm_mode_config_reset); | |
ff72145b | 5396 | |
c8e32cc1 DV |
5397 | /** |
5398 | * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer | |
5399 | * @dev: DRM device | |
5400 | * @data: ioctl data | |
5401 | * @file_priv: DRM file info | |
5402 | * | |
5403 | * This creates a new dumb buffer in the driver's backing storage manager (GEM, | |
5404 | * TTM or something else entirely) and returns the resulting buffer handle. This | |
5405 | * handle can then be wrapped up into a framebuffer modeset object. | |
5406 | * | |
5407 | * Note that userspace is not allowed to use such objects for render | |
5408 | * acceleration - drivers must create their own private ioctls for such a use | |
5409 | * case. | |
5410 | * | |
5411 | * Called by the user via ioctl. | |
5412 | * | |
5413 | * Returns: | |
1a498633 | 5414 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5415 | */ |
ff72145b DA |
5416 | int drm_mode_create_dumb_ioctl(struct drm_device *dev, |
5417 | void *data, struct drm_file *file_priv) | |
5418 | { | |
5419 | struct drm_mode_create_dumb *args = data; | |
b28cd41f | 5420 | u32 cpp, stride, size; |
ff72145b DA |
5421 | |
5422 | if (!dev->driver->dumb_create) | |
5423 | return -ENOSYS; | |
b28cd41f DH |
5424 | if (!args->width || !args->height || !args->bpp) |
5425 | return -EINVAL; | |
5426 | ||
5427 | /* overflow checks for 32bit size calculations */ | |
00e72089 | 5428 | /* NOTE: DIV_ROUND_UP() can overflow */ |
b28cd41f | 5429 | cpp = DIV_ROUND_UP(args->bpp, 8); |
00e72089 | 5430 | if (!cpp || cpp > 0xffffffffU / args->width) |
b28cd41f DH |
5431 | return -EINVAL; |
5432 | stride = cpp * args->width; | |
5433 | if (args->height > 0xffffffffU / stride) | |
5434 | return -EINVAL; | |
5435 | ||
5436 | /* test for wrap-around */ | |
5437 | size = args->height * stride; | |
5438 | if (PAGE_ALIGN(size) == 0) | |
5439 | return -EINVAL; | |
5440 | ||
f6085952 TR |
5441 | /* |
5442 | * handle, pitch and size are output parameters. Zero them out to | |
5443 | * prevent drivers from accidentally using uninitialized data. Since | |
5444 | * not all existing userspace is clearing these fields properly we | |
5445 | * cannot reject IOCTL with garbage in them. | |
5446 | */ | |
5447 | args->handle = 0; | |
5448 | args->pitch = 0; | |
5449 | args->size = 0; | |
5450 | ||
ff72145b DA |
5451 | return dev->driver->dumb_create(file_priv, dev, args); |
5452 | } | |
5453 | ||
c8e32cc1 DV |
5454 | /** |
5455 | * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer | |
5456 | * @dev: DRM device | |
5457 | * @data: ioctl data | |
5458 | * @file_priv: DRM file info | |
5459 | * | |
5460 | * Allocate an offset in the drm device node's address space to be able to | |
5461 | * memory map a dumb buffer. | |
5462 | * | |
5463 | * Called by the user via ioctl. | |
5464 | * | |
5465 | * Returns: | |
1a498633 | 5466 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5467 | */ |
ff72145b DA |
5468 | int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, |
5469 | void *data, struct drm_file *file_priv) | |
5470 | { | |
5471 | struct drm_mode_map_dumb *args = data; | |
5472 | ||
5473 | /* call driver ioctl to get mmap offset */ | |
5474 | if (!dev->driver->dumb_map_offset) | |
5475 | return -ENOSYS; | |
5476 | ||
5477 | return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); | |
5478 | } | |
5479 | ||
c8e32cc1 DV |
5480 | /** |
5481 | * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer | |
5482 | * @dev: DRM device | |
5483 | * @data: ioctl data | |
5484 | * @file_priv: DRM file info | |
5485 | * | |
5486 | * This destroys the userspace handle for the given dumb backing storage buffer. | |
5487 | * Since buffer objects must be reference counted in the kernel a buffer object | |
5488 | * won't be immediately freed if a framebuffer modeset object still uses it. | |
5489 | * | |
5490 | * Called by the user via ioctl. | |
5491 | * | |
5492 | * Returns: | |
1a498633 | 5493 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5494 | */ |
ff72145b DA |
5495 | int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, |
5496 | void *data, struct drm_file *file_priv) | |
5497 | { | |
5498 | struct drm_mode_destroy_dumb *args = data; | |
5499 | ||
5500 | if (!dev->driver->dumb_destroy) | |
5501 | return -ENOSYS; | |
5502 | ||
5503 | return dev->driver->dumb_destroy(file_priv, dev, args->handle); | |
5504 | } | |
248dbc23 | 5505 | |
3c9855f6 VS |
5506 | /** |
5507 | * drm_rotation_simplify() - Try to simplify the rotation | |
5508 | * @rotation: Rotation to be simplified | |
5509 | * @supported_rotations: Supported rotations | |
5510 | * | |
5511 | * Attempt to simplify the rotation to a form that is supported. | |
5512 | * Eg. if the hardware supports everything except DRM_REFLECT_X | |
5513 | * one could call this function like this: | |
5514 | * | |
5515 | * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) | | |
5516 | * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) | | |
5517 | * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y)); | |
5518 | * | |
5519 | * to eliminate the DRM_ROTATE_X flag. Depending on what kind of | |
5520 | * transforms the hardware supports, this function may not | |
5521 | * be able to produce a supported transform, so the caller should | |
5522 | * check the result afterwards. | |
5523 | */ | |
5524 | unsigned int drm_rotation_simplify(unsigned int rotation, | |
5525 | unsigned int supported_rotations) | |
5526 | { | |
5527 | if (rotation & ~supported_rotations) { | |
5528 | rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y); | |
14152c8d JL |
5529 | rotation = (rotation & DRM_REFLECT_MASK) | |
5530 | BIT((ffs(rotation & DRM_ROTATE_MASK) + 1) % 4); | |
3c9855f6 VS |
5531 | } |
5532 | ||
5533 | return rotation; | |
5534 | } | |
5535 | EXPORT_SYMBOL(drm_rotation_simplify); | |
5536 | ||
87d24fc3 LP |
5537 | /** |
5538 | * drm_mode_config_init - initialize DRM mode_configuration structure | |
5539 | * @dev: DRM device | |
5540 | * | |
5541 | * Initialize @dev's mode_config structure, used for tracking the graphics | |
5542 | * configuration of @dev. | |
5543 | * | |
5544 | * Since this initializes the modeset locks, no locking is possible. Which is no | |
5545 | * problem, since this should happen single threaded at init time. It is the | |
5546 | * driver's problem to ensure this guarantee. | |
5547 | * | |
5548 | */ | |
5549 | void drm_mode_config_init(struct drm_device *dev) | |
5550 | { | |
5551 | mutex_init(&dev->mode_config.mutex); | |
51fd371b | 5552 | drm_modeset_lock_init(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
5553 | mutex_init(&dev->mode_config.idr_mutex); |
5554 | mutex_init(&dev->mode_config.fb_lock); | |
8fb6e7a5 | 5555 | mutex_init(&dev->mode_config.blob_lock); |
87d24fc3 LP |
5556 | INIT_LIST_HEAD(&dev->mode_config.fb_list); |
5557 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); | |
5558 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
5559 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); | |
5560 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
5561 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
5562 | INIT_LIST_HEAD(&dev->mode_config.plane_list); | |
5563 | idr_init(&dev->mode_config.crtc_idr); | |
138f9ebb | 5564 | idr_init(&dev->mode_config.tile_idr); |
5fff80bb | 5565 | ida_init(&dev->mode_config.connector_ida); |
87d24fc3 LP |
5566 | |
5567 | drm_modeset_lock_all(dev); | |
6b4959f4 | 5568 | drm_mode_create_standard_properties(dev); |
87d24fc3 LP |
5569 | drm_modeset_unlock_all(dev); |
5570 | ||
5571 | /* Just to be sure */ | |
5572 | dev->mode_config.num_fb = 0; | |
5573 | dev->mode_config.num_connector = 0; | |
5574 | dev->mode_config.num_crtc = 0; | |
5575 | dev->mode_config.num_encoder = 0; | |
e27dde3e MR |
5576 | dev->mode_config.num_overlay_plane = 0; |
5577 | dev->mode_config.num_total_plane = 0; | |
87d24fc3 LP |
5578 | } |
5579 | EXPORT_SYMBOL(drm_mode_config_init); | |
5580 | ||
5581 | /** | |
5582 | * drm_mode_config_cleanup - free up DRM mode_config info | |
5583 | * @dev: DRM device | |
5584 | * | |
5585 | * Free up all the connectors and CRTCs associated with this DRM device, then | |
5586 | * free up the framebuffers and associated buffer objects. | |
5587 | * | |
5588 | * Note that since this /should/ happen single-threaded at driver/device | |
5589 | * teardown time, no locking is required. It's the driver's job to ensure that | |
5590 | * this guarantee actually holds true. | |
5591 | * | |
5592 | * FIXME: cleanup any dangling user buffer objects too | |
5593 | */ | |
5594 | void drm_mode_config_cleanup(struct drm_device *dev) | |
5595 | { | |
5596 | struct drm_connector *connector, *ot; | |
5597 | struct drm_crtc *crtc, *ct; | |
5598 | struct drm_encoder *encoder, *enct; | |
5599 | struct drm_framebuffer *fb, *fbt; | |
5600 | struct drm_property *property, *pt; | |
5601 | struct drm_property_blob *blob, *bt; | |
5602 | struct drm_plane *plane, *plt; | |
5603 | ||
5604 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
5605 | head) { | |
5606 | encoder->funcs->destroy(encoder); | |
5607 | } | |
5608 | ||
5609 | list_for_each_entry_safe(connector, ot, | |
5610 | &dev->mode_config.connector_list, head) { | |
5611 | connector->funcs->destroy(connector); | |
5612 | } | |
5613 | ||
5614 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
5615 | head) { | |
5616 | drm_property_destroy(dev, property); | |
5617 | } | |
5618 | ||
f35034f8 ML |
5619 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, |
5620 | head) { | |
5621 | plane->funcs->destroy(plane); | |
5622 | } | |
5623 | ||
5624 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { | |
5625 | crtc->funcs->destroy(crtc); | |
5626 | } | |
5627 | ||
87d24fc3 | 5628 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, |
e2f5d2ea | 5629 | head_global) { |
6bcacf51 | 5630 | drm_property_unreference_blob(blob); |
87d24fc3 LP |
5631 | } |
5632 | ||
5633 | /* | |
5634 | * Single-threaded teardown context, so it's not required to grab the | |
5635 | * fb_lock to protect against concurrent fb_list access. Contrary, it | |
5636 | * would actually deadlock with the drm_framebuffer_cleanup function. | |
5637 | * | |
5638 | * Also, if there are any framebuffers left, that's a driver leak now, | |
5639 | * so politely WARN about this. | |
5640 | */ | |
5641 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); | |
5642 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { | |
d0f37cf6 | 5643 | drm_framebuffer_free(&fb->base.refcount); |
87d24fc3 LP |
5644 | } |
5645 | ||
5fff80bb | 5646 | ida_destroy(&dev->mode_config.connector_ida); |
138f9ebb | 5647 | idr_destroy(&dev->mode_config.tile_idr); |
87d24fc3 | 5648 | idr_destroy(&dev->mode_config.crtc_idr); |
51fd371b | 5649 | drm_modeset_lock_fini(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
5650 | } |
5651 | EXPORT_SYMBOL(drm_mode_config_cleanup); | |
c1df5f3c VS |
5652 | |
5653 | struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, | |
5654 | unsigned int supported_rotations) | |
5655 | { | |
5656 | static const struct drm_prop_enum_list props[] = { | |
5657 | { DRM_ROTATE_0, "rotate-0" }, | |
5658 | { DRM_ROTATE_90, "rotate-90" }, | |
5659 | { DRM_ROTATE_180, "rotate-180" }, | |
5660 | { DRM_ROTATE_270, "rotate-270" }, | |
5661 | { DRM_REFLECT_X, "reflect-x" }, | |
5662 | { DRM_REFLECT_Y, "reflect-y" }, | |
5663 | }; | |
5664 | ||
5665 | return drm_property_create_bitmask(dev, 0, "rotation", | |
5666 | props, ARRAY_SIZE(props), | |
5667 | supported_rotations); | |
5668 | } | |
5669 | EXPORT_SYMBOL(drm_mode_create_rotation_property); | |
138f9ebb DA |
5670 | |
5671 | /** | |
5672 | * DOC: Tile group | |
5673 | * | |
5674 | * Tile groups are used to represent tiled monitors with a unique | |
5675 | * integer identifier. Tiled monitors using DisplayID v1.3 have | |
5676 | * a unique 8-byte handle, we store this in a tile group, so we | |
5677 | * have a common identifier for all tiles in a monitor group. | |
5678 | */ | |
5679 | static void drm_tile_group_free(struct kref *kref) | |
5680 | { | |
5681 | struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount); | |
5682 | struct drm_device *dev = tg->dev; | |
5683 | mutex_lock(&dev->mode_config.idr_mutex); | |
5684 | idr_remove(&dev->mode_config.tile_idr, tg->id); | |
5685 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5686 | kfree(tg); | |
5687 | } | |
5688 | ||
5689 | /** | |
5690 | * drm_mode_put_tile_group - drop a reference to a tile group. | |
5691 | * @dev: DRM device | |
5692 | * @tg: tile group to drop reference to. | |
5693 | * | |
5694 | * drop reference to tile group and free if 0. | |
5695 | */ | |
5696 | void drm_mode_put_tile_group(struct drm_device *dev, | |
5697 | struct drm_tile_group *tg) | |
5698 | { | |
5699 | kref_put(&tg->refcount, drm_tile_group_free); | |
5700 | } | |
5701 | ||
5702 | /** | |
5703 | * drm_mode_get_tile_group - get a reference to an existing tile group | |
5704 | * @dev: DRM device | |
5705 | * @topology: 8-bytes unique per monitor. | |
5706 | * | |
5707 | * Use the unique bytes to get a reference to an existing tile group. | |
5708 | * | |
5709 | * RETURNS: | |
5710 | * tile group or NULL if not found. | |
5711 | */ | |
5712 | struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, | |
5713 | char topology[8]) | |
5714 | { | |
5715 | struct drm_tile_group *tg; | |
5716 | int id; | |
5717 | mutex_lock(&dev->mode_config.idr_mutex); | |
5718 | idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) { | |
5719 | if (!memcmp(tg->group_data, topology, 8)) { | |
5720 | if (!kref_get_unless_zero(&tg->refcount)) | |
5721 | tg = NULL; | |
5722 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5723 | return tg; | |
5724 | } | |
5725 | } | |
5726 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5727 | return NULL; | |
5728 | } | |
81ddd1bc | 5729 | EXPORT_SYMBOL(drm_mode_get_tile_group); |
138f9ebb DA |
5730 | |
5731 | /** | |
5732 | * drm_mode_create_tile_group - create a tile group from a displayid description | |
5733 | * @dev: DRM device | |
5734 | * @topology: 8-bytes unique per monitor. | |
5735 | * | |
5736 | * Create a tile group for the unique monitor, and get a unique | |
5737 | * identifier for the tile group. | |
5738 | * | |
5739 | * RETURNS: | |
5740 | * new tile group or error. | |
5741 | */ | |
5742 | struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, | |
5743 | char topology[8]) | |
5744 | { | |
5745 | struct drm_tile_group *tg; | |
5746 | int ret; | |
5747 | ||
5748 | tg = kzalloc(sizeof(*tg), GFP_KERNEL); | |
5749 | if (!tg) | |
5750 | return ERR_PTR(-ENOMEM); | |
5751 | ||
5752 | kref_init(&tg->refcount); | |
5753 | memcpy(tg->group_data, topology, 8); | |
5754 | tg->dev = dev; | |
5755 | ||
5756 | mutex_lock(&dev->mode_config.idr_mutex); | |
5757 | ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL); | |
5758 | if (ret >= 0) { | |
5759 | tg->id = ret; | |
5760 | } else { | |
5761 | kfree(tg); | |
5762 | tg = ERR_PTR(ret); | |
5763 | } | |
5764 | ||
5765 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5766 | return tg; | |
5767 | } | |
81ddd1bc | 5768 | EXPORT_SYMBOL(drm_mode_create_tile_group); |
f8ed34ac JS |
5769 | |
5770 | /** | |
5771 | * drm_crtc_enable_color_mgmt - enable color management properties | |
5772 | * @crtc: DRM CRTC | |
5773 | * @degamma_lut_size: the size of the degamma lut (before CSC) | |
5774 | * @has_ctm: whether to attach ctm_property for CSC matrix | |
5775 | * @gamma_lut_size: the size of the gamma lut (after CSC) | |
5776 | * | |
5777 | * This function lets the driver enable the color correction | |
5778 | * properties on a CRTC. This includes 3 degamma, csc and gamma | |
5779 | * properties that userspace can set and 2 size properties to inform | |
5780 | * the userspace of the lut sizes. Each of the properties are | |
5781 | * optional. The gamma and degamma properties are only attached if | |
5782 | * their size is not 0 and ctm_property is only attached if has_ctm is | |
5783 | * true. | |
5784 | */ | |
5785 | void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc, | |
5786 | uint degamma_lut_size, | |
5787 | bool has_ctm, | |
5788 | uint gamma_lut_size) | |
5789 | { | |
5790 | struct drm_device *dev = crtc->dev; | |
5791 | struct drm_mode_config *config = &dev->mode_config; | |
5792 | ||
5793 | if (degamma_lut_size) { | |
5794 | drm_object_attach_property(&crtc->base, | |
5795 | config->degamma_lut_property, 0); | |
5796 | drm_object_attach_property(&crtc->base, | |
5797 | config->degamma_lut_size_property, | |
5798 | degamma_lut_size); | |
5799 | } | |
5800 | ||
5801 | if (has_ctm) | |
5802 | drm_object_attach_property(&crtc->base, | |
5803 | config->ctm_property, 0); | |
5804 | ||
5805 | if (gamma_lut_size) { | |
5806 | drm_object_attach_property(&crtc->base, | |
5807 | config->gamma_lut_property, 0); | |
5808 | drm_object_attach_property(&crtc->base, | |
5809 | config->gamma_lut_size_property, | |
5810 | gamma_lut_size); | |
5811 | } | |
5812 | } | |
5813 | EXPORT_SYMBOL(drm_crtc_enable_color_mgmt); |