blob: 266a01d7f6353db7a5e28d23a86215e85bf18d78 [file] [log] [blame]
Dave Airlief453ba02008-11-07 14:05:41 -08001/*
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 */
Ville Syrjälä6ba6d032013-06-10 11:15:10 +030032#include <linux/ctype.h>
Dave Airlief453ba02008-11-07 14:05:41 -080033#include <linux/list.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090034#include <linux/slab.h>
Paul Gortmaker2d1a8a42011-08-30 18:16:33 -040035#include <linux/export.h>
David Howells760285e2012-10-02 18:01:07 +010036#include <drm/drmP.h>
37#include <drm/drm_crtc.h>
38#include <drm/drm_edid.h>
39#include <drm/drm_fourcc.h>
Dave Airlief453ba02008-11-07 14:05:41 -080040
Daniel Vetter84849902012-12-02 00:28:11 +010041/**
42 * drm_modeset_lock_all - take all modeset locks
43 * @dev: drm device
44 *
45 * This function takes all modeset locks, suitable where a more fine-grained
46 * scheme isn't (yet) implemented.
47 */
48void drm_modeset_lock_all(struct drm_device *dev)
49{
Daniel Vetter29494c12012-12-02 02:18:25 +010050 struct drm_crtc *crtc;
51
Daniel Vetter84849902012-12-02 00:28:11 +010052 mutex_lock(&dev->mode_config.mutex);
Daniel Vetter29494c12012-12-02 02:18:25 +010053
54 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
55 mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex);
Daniel Vetter84849902012-12-02 00:28:11 +010056}
57EXPORT_SYMBOL(drm_modeset_lock_all);
58
59/**
60 * drm_modeset_unlock_all - drop all modeset locks
61 * @dev: device
62 */
63void drm_modeset_unlock_all(struct drm_device *dev)
64{
Daniel Vetter29494c12012-12-02 02:18:25 +010065 struct drm_crtc *crtc;
66
67 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
68 mutex_unlock(&crtc->mutex);
69
Daniel Vetter84849902012-12-02 00:28:11 +010070 mutex_unlock(&dev->mode_config.mutex);
71}
72EXPORT_SYMBOL(drm_modeset_unlock_all);
73
Daniel Vetter6aed8ec2013-01-20 17:32:21 +010074/**
75 * drm_warn_on_modeset_not_all_locked - check that all modeset locks are locked
76 * @dev: device
77 */
78void drm_warn_on_modeset_not_all_locked(struct drm_device *dev)
79{
80 struct drm_crtc *crtc;
81
Daniel Vettera9b054e2013-05-02 09:43:05 +020082 /* Locking is currently fubar in the panic handler. */
83 if (oops_in_progress)
84 return;
85
Daniel Vetter6aed8ec2013-01-20 17:32:21 +010086 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
87 WARN_ON(!mutex_is_locked(&crtc->mutex));
88
89 WARN_ON(!mutex_is_locked(&dev->mode_config.mutex));
90}
91EXPORT_SYMBOL(drm_warn_on_modeset_not_all_locked);
92
Dave Airlief453ba02008-11-07 14:05:41 -080093/* Avoid boilerplate. I'm tired of typing. */
94#define DRM_ENUM_NAME_FN(fnname, list) \
Ville Syrjäläd20d3172013-06-07 15:43:07 +000095 const char *fnname(int val) \
Dave Airlief453ba02008-11-07 14:05:41 -080096 { \
97 int i; \
98 for (i = 0; i < ARRAY_SIZE(list); i++) { \
99 if (list[i].type == val) \
100 return list[i].name; \
101 } \
102 return "(unknown)"; \
103 }
104
105/*
106 * Global properties
107 */
Ville Syrjäläd20d3172013-06-07 15:43:07 +0000108static const struct drm_prop_enum_list drm_dpms_enum_list[] =
Dave Airlief453ba02008-11-07 14:05:41 -0800109{ { DRM_MODE_DPMS_ON, "On" },
110 { DRM_MODE_DPMS_STANDBY, "Standby" },
111 { DRM_MODE_DPMS_SUSPEND, "Suspend" },
112 { DRM_MODE_DPMS_OFF, "Off" }
113};
114
115DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
116
117/*
118 * Optional properties
119 */
Ville Syrjäläd20d3172013-06-07 15:43:07 +0000120static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
Dave Airlief453ba02008-11-07 14:05:41 -0800121{
Jesse Barnes53bd8382009-07-01 10:04:40 -0700122 { DRM_MODE_SCALE_NONE, "None" },
123 { DRM_MODE_SCALE_FULLSCREEN, "Full" },
124 { DRM_MODE_SCALE_CENTER, "Center" },
125 { DRM_MODE_SCALE_ASPECT, "Full aspect" },
Dave Airlief453ba02008-11-07 14:05:41 -0800126};
127
Dave Airlief453ba02008-11-07 14:05:41 -0800128/*
129 * Non-global properties, but "required" for certain connectors.
130 */
Ville Syrjäläd20d3172013-06-07 15:43:07 +0000131static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
Dave Airlief453ba02008-11-07 14:05:41 -0800132{
133 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
134 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
135 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
136};
137
138DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
139
Ville Syrjäläd20d3172013-06-07 15:43:07 +0000140static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
Dave Airlief453ba02008-11-07 14:05:41 -0800141{
142 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
143 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
144 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
145};
146
147DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
148 drm_dvi_i_subconnector_enum_list)
149
Ville Syrjäläd20d3172013-06-07 15:43:07 +0000150static const struct drm_prop_enum_list drm_tv_select_enum_list[] =
Dave Airlief453ba02008-11-07 14:05:41 -0800151{
152 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
153 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
154 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
155 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
Francisco Jerezaeaa1ad2009-08-02 04:19:19 +0200156 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
Dave Airlief453ba02008-11-07 14:05:41 -0800157};
158
159DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
160
Ville Syrjäläd20d3172013-06-07 15:43:07 +0000161static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
Dave Airlief453ba02008-11-07 14:05:41 -0800162{
163 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
164 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
165 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
166 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
Francisco Jerezaeaa1ad2009-08-02 04:19:19 +0200167 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
Dave Airlief453ba02008-11-07 14:05:41 -0800168};
169
170DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
171 drm_tv_subconnector_enum_list)
172
Ville Syrjäläd20d3172013-06-07 15:43:07 +0000173static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
Jakob Bornecrantz884840a2009-12-03 23:25:47 +0000174 { DRM_MODE_DIRTY_OFF, "Off" },
175 { DRM_MODE_DIRTY_ON, "On" },
176 { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
177};
178
Dave Airlief453ba02008-11-07 14:05:41 -0800179struct drm_conn_prop_enum_list {
180 int type;
Ville Syrjäläd20d3172013-06-07 15:43:07 +0000181 const char *name;
Ilia Mirkinb21e3af2013-08-07 22:34:48 -0400182 struct ida ida;
Dave Airlief453ba02008-11-07 14:05:41 -0800183};
184
185/*
186 * Connector and encoder types.
187 */
188static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
Ilia Mirkinb21e3af2013-08-07 22:34:48 -0400189{ { DRM_MODE_CONNECTOR_Unknown, "Unknown" },
190 { DRM_MODE_CONNECTOR_VGA, "VGA" },
191 { DRM_MODE_CONNECTOR_DVII, "DVI-I" },
192 { DRM_MODE_CONNECTOR_DVID, "DVI-D" },
193 { DRM_MODE_CONNECTOR_DVIA, "DVI-A" },
194 { DRM_MODE_CONNECTOR_Composite, "Composite" },
195 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" },
196 { DRM_MODE_CONNECTOR_LVDS, "LVDS" },
197 { DRM_MODE_CONNECTOR_Component, "Component" },
198 { DRM_MODE_CONNECTOR_9PinDIN, "DIN" },
199 { DRM_MODE_CONNECTOR_DisplayPort, "DP" },
200 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" },
201 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" },
202 { DRM_MODE_CONNECTOR_TV, "TV" },
203 { DRM_MODE_CONNECTOR_eDP, "eDP" },
204 { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" },
Shobhit Kumarb8923272013-08-27 15:12:13 +0300205 { DRM_MODE_CONNECTOR_DSI, "DSI" },
Dave Airlief453ba02008-11-07 14:05:41 -0800206};
207
Ville Syrjäläd20d3172013-06-07 15:43:07 +0000208static const struct drm_prop_enum_list drm_encoder_enum_list[] =
Dave Airlief453ba02008-11-07 14:05:41 -0800209{ { DRM_MODE_ENCODER_NONE, "None" },
210 { DRM_MODE_ENCODER_DAC, "DAC" },
211 { DRM_MODE_ENCODER_TMDS, "TMDS" },
212 { DRM_MODE_ENCODER_LVDS, "LVDS" },
213 { DRM_MODE_ENCODER_TVDAC, "TV" },
Thomas Hellstroma7331e52011-10-22 10:36:19 +0200214 { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
Shobhit Kumarb8923272013-08-27 15:12:13 +0300215 { DRM_MODE_ENCODER_DSI, "DSI" },
Dave Airlief453ba02008-11-07 14:05:41 -0800216};
217
Ilia Mirkinb21e3af2013-08-07 22:34:48 -0400218void drm_connector_ida_init(void)
219{
220 int i;
221
222 for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++)
223 ida_init(&drm_connector_enum_list[i].ida);
224}
225
226void drm_connector_ida_destroy(void)
227{
228 int i;
229
230 for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++)
231 ida_destroy(&drm_connector_enum_list[i].ida);
232}
233
Ville Syrjäläd20d3172013-06-07 15:43:07 +0000234const char *drm_get_encoder_name(const struct drm_encoder *encoder)
Dave Airlief453ba02008-11-07 14:05:41 -0800235{
236 static char buf[32];
237
238 snprintf(buf, 32, "%s-%d",
239 drm_encoder_enum_list[encoder->encoder_type].name,
240 encoder->base.id);
241 return buf;
242}
Dave Airlie13a81952009-09-07 15:45:33 +1000243EXPORT_SYMBOL(drm_get_encoder_name);
Dave Airlief453ba02008-11-07 14:05:41 -0800244
Ville Syrjäläd20d3172013-06-07 15:43:07 +0000245const char *drm_get_connector_name(const struct drm_connector *connector)
Dave Airlief453ba02008-11-07 14:05:41 -0800246{
247 static char buf[32];
248
249 snprintf(buf, 32, "%s-%d",
250 drm_connector_enum_list[connector->connector_type].name,
251 connector->connector_type_id);
252 return buf;
253}
254EXPORT_SYMBOL(drm_get_connector_name);
255
Ville Syrjäläd20d3172013-06-07 15:43:07 +0000256const char *drm_get_connector_status_name(enum drm_connector_status status)
Dave Airlief453ba02008-11-07 14:05:41 -0800257{
258 if (status == connector_status_connected)
259 return "connected";
260 else if (status == connector_status_disconnected)
261 return "disconnected";
262 else
263 return "unknown";
264}
Lespiau, Damiened7951d2013-05-10 12:36:42 +0000265EXPORT_SYMBOL(drm_get_connector_status_name);
Dave Airlief453ba02008-11-07 14:05:41 -0800266
Ville Syrjälä6ba6d032013-06-10 11:15:10 +0300267static char printable_char(int c)
268{
269 return isascii(c) && isprint(c) ? c : '?';
270}
271
Ville Syrjäläd20d3172013-06-07 15:43:07 +0000272const char *drm_get_format_name(uint32_t format)
Ville Syrjälä6ba6d032013-06-10 11:15:10 +0300273{
274 static char buf[32];
275
276 snprintf(buf, sizeof(buf),
277 "%c%c%c%c %s-endian (0x%08x)",
278 printable_char(format & 0xff),
279 printable_char((format >> 8) & 0xff),
280 printable_char((format >> 16) & 0xff),
281 printable_char((format >> 24) & 0x7f),
282 format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little",
283 format);
284
285 return buf;
286}
287EXPORT_SYMBOL(drm_get_format_name);
288
Dave Airlief453ba02008-11-07 14:05:41 -0800289/**
Daniel Vetter065a50ed2012-12-02 00:09:18 +0100290 * drm_mode_object_get - allocate a new modeset identifier
Dave Airlief453ba02008-11-07 14:05:41 -0800291 * @dev: DRM device
Daniel Vetter065a50ed2012-12-02 00:09:18 +0100292 * @obj: object pointer, used to generate unique ID
293 * @obj_type: object type
Dave Airlief453ba02008-11-07 14:05:41 -0800294 *
Dave Airlief453ba02008-11-07 14:05:41 -0800295 * Create a unique identifier based on @ptr in @dev's identifier space. Used
296 * for tracking modes, CRTCs and connectors.
297 *
298 * RETURNS:
299 * New unique (relative to other objects in @dev) integer identifier for the
300 * object.
301 */
302static int drm_mode_object_get(struct drm_device *dev,
303 struct drm_mode_object *obj, uint32_t obj_type)
304{
Dave Airlief453ba02008-11-07 14:05:41 -0800305 int ret;
306
Jesse Barnesad2563c2009-01-19 17:21:45 +1000307 mutex_lock(&dev->mode_config.idr_mutex);
Tejun Heo2e928812013-02-27 17:04:08 -0800308 ret = idr_alloc(&dev->mode_config.crtc_idr, obj, 1, 0, GFP_KERNEL);
309 if (ret >= 0) {
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100310 /*
311 * Set up the object linking under the protection of the idr
312 * lock so that other users can't see inconsistent state.
313 */
Tejun Heo2e928812013-02-27 17:04:08 -0800314 obj->id = ret;
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100315 obj->type = obj_type;
316 }
Jesse Barnesad2563c2009-01-19 17:21:45 +1000317 mutex_unlock(&dev->mode_config.idr_mutex);
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100318
Tejun Heo2e928812013-02-27 17:04:08 -0800319 return ret < 0 ? ret : 0;
Dave Airlief453ba02008-11-07 14:05:41 -0800320}
321
322/**
Daniel Vetter065a50ed2012-12-02 00:09:18 +0100323 * drm_mode_object_put - free a modeset identifer
Dave Airlief453ba02008-11-07 14:05:41 -0800324 * @dev: DRM device
Daniel Vetter065a50ed2012-12-02 00:09:18 +0100325 * @object: object to free
Dave Airlief453ba02008-11-07 14:05:41 -0800326 *
Dave Airlief453ba02008-11-07 14:05:41 -0800327 * Free @id from @dev's unique identifier pool.
328 */
329static void drm_mode_object_put(struct drm_device *dev,
330 struct drm_mode_object *object)
331{
Jesse Barnesad2563c2009-01-19 17:21:45 +1000332 mutex_lock(&dev->mode_config.idr_mutex);
Dave Airlief453ba02008-11-07 14:05:41 -0800333 idr_remove(&dev->mode_config.crtc_idr, object->id);
Jesse Barnesad2563c2009-01-19 17:21:45 +1000334 mutex_unlock(&dev->mode_config.idr_mutex);
Dave Airlief453ba02008-11-07 14:05:41 -0800335}
336
Daniel Vetter786b99e2012-12-02 21:53:40 +0100337/**
338 * drm_mode_object_find - look up a drm object with static lifetime
339 * @dev: drm device
340 * @id: id of the mode object
341 * @type: type of the mode object
342 *
343 * Note that framebuffers cannot be looked up with this functions - since those
344 * are reference counted, they need special treatment.
345 */
Daniel Vetter7a9c9062009-09-15 22:57:31 +0200346struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
347 uint32_t id, uint32_t type)
Dave Airlief453ba02008-11-07 14:05:41 -0800348{
Jesse Barnesad2563c2009-01-19 17:21:45 +1000349 struct drm_mode_object *obj = NULL;
Dave Airlief453ba02008-11-07 14:05:41 -0800350
Daniel Vetter786b99e2012-12-02 21:53:40 +0100351 /* Framebuffers are reference counted and need their own lookup
352 * function.*/
353 WARN_ON(type == DRM_MODE_OBJECT_FB);
354
Jesse Barnesad2563c2009-01-19 17:21:45 +1000355 mutex_lock(&dev->mode_config.idr_mutex);
Dave Airlief453ba02008-11-07 14:05:41 -0800356 obj = idr_find(&dev->mode_config.crtc_idr, id);
357 if (!obj || (obj->type != type) || (obj->id != id))
Jesse Barnesad2563c2009-01-19 17:21:45 +1000358 obj = NULL;
359 mutex_unlock(&dev->mode_config.idr_mutex);
Dave Airlief453ba02008-11-07 14:05:41 -0800360
361 return obj;
362}
363EXPORT_SYMBOL(drm_mode_object_find);
364
365/**
Dave Airlief453ba02008-11-07 14:05:41 -0800366 * drm_framebuffer_init - initialize a framebuffer
367 * @dev: DRM device
Daniel Vetter065a50ed2012-12-02 00:09:18 +0100368 * @fb: framebuffer to be initialized
369 * @funcs: ... with these functions
Dave Airlief453ba02008-11-07 14:05:41 -0800370 *
Dave Airlief453ba02008-11-07 14:05:41 -0800371 * Allocates an ID for the framebuffer's parent mode object, sets its mode
372 * functions & device file and adds it to the master fd list.
373 *
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100374 * IMPORTANT:
375 * This functions publishes the fb and makes it available for concurrent access
376 * by other users. Which means by this point the fb _must_ be fully set up -
377 * since all the fb attributes are invariant over its lifetime, no further
378 * locking but only correct reference counting is required.
379 *
Dave Airlief453ba02008-11-07 14:05:41 -0800380 * RETURNS:
André Goddard Rosaaf901ca2009-11-14 13:09:05 -0200381 * Zero on success, error code on failure.
Dave Airlief453ba02008-11-07 14:05:41 -0800382 */
383int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
384 const struct drm_framebuffer_funcs *funcs)
385{
386 int ret;
387
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100388 mutex_lock(&dev->mode_config.fb_lock);
Rob Clarkf7eff602012-09-05 21:48:38 +0000389 kref_init(&fb->refcount);
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100390 INIT_LIST_HEAD(&fb->filp_head);
391 fb->dev = dev;
392 fb->funcs = funcs;
Rob Clarkf7eff602012-09-05 21:48:38 +0000393
Dave Airlief453ba02008-11-07 14:05:41 -0800394 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200395 if (ret)
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100396 goto out;
Dave Airlief453ba02008-11-07 14:05:41 -0800397
Daniel Vetter2b677e82012-12-10 21:16:05 +0100398 /* Grab the idr reference. */
399 drm_framebuffer_reference(fb);
400
Dave Airlief453ba02008-11-07 14:05:41 -0800401 dev->mode_config.num_fb++;
402 list_add(&fb->head, &dev->mode_config.fb_list);
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100403out:
404 mutex_unlock(&dev->mode_config.fb_lock);
Dave Airlief453ba02008-11-07 14:05:41 -0800405
406 return 0;
407}
408EXPORT_SYMBOL(drm_framebuffer_init);
409
Rob Clarkf7eff602012-09-05 21:48:38 +0000410static void drm_framebuffer_free(struct kref *kref)
411{
412 struct drm_framebuffer *fb =
413 container_of(kref, struct drm_framebuffer, refcount);
414 fb->funcs->destroy(fb);
415}
416
Daniel Vetter2b677e82012-12-10 21:16:05 +0100417static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev,
418 uint32_t id)
419{
420 struct drm_mode_object *obj = NULL;
421 struct drm_framebuffer *fb;
422
423 mutex_lock(&dev->mode_config.idr_mutex);
424 obj = idr_find(&dev->mode_config.crtc_idr, id);
425 if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id))
426 fb = NULL;
427 else
428 fb = obj_to_fb(obj);
429 mutex_unlock(&dev->mode_config.idr_mutex);
430
431 return fb;
432}
433
Rob Clarkf7eff602012-09-05 21:48:38 +0000434/**
Daniel Vetter786b99e2012-12-02 21:53:40 +0100435 * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference
436 * @dev: drm device
437 * @id: id of the fb object
438 *
439 * If successful, this grabs an additional reference to the framebuffer -
440 * callers need to make sure to eventually unreference the returned framebuffer
441 * again.
442 */
443struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
444 uint32_t id)
445{
Daniel Vetter786b99e2012-12-02 21:53:40 +0100446 struct drm_framebuffer *fb;
447
448 mutex_lock(&dev->mode_config.fb_lock);
Daniel Vetter2b677e82012-12-10 21:16:05 +0100449 fb = __drm_framebuffer_lookup(dev, id);
Daniel Vetter786b99e2012-12-02 21:53:40 +0100450 if (fb)
archit taneja9131d3d2013-04-10 08:59:39 +0000451 drm_framebuffer_reference(fb);
Daniel Vetter786b99e2012-12-02 21:53:40 +0100452 mutex_unlock(&dev->mode_config.fb_lock);
453
454 return fb;
455}
456EXPORT_SYMBOL(drm_framebuffer_lookup);
457
458/**
Rob Clarkf7eff602012-09-05 21:48:38 +0000459 * drm_framebuffer_unreference - unref a framebuffer
Daniel Vetter065a50ed2012-12-02 00:09:18 +0100460 * @fb: framebuffer to unref
461 *
462 * This functions decrements the fb's refcount and frees it if it drops to zero.
Rob Clarkf7eff602012-09-05 21:48:38 +0000463 */
464void drm_framebuffer_unreference(struct drm_framebuffer *fb)
465{
Rob Clarkf7eff602012-09-05 21:48:38 +0000466 DRM_DEBUG("FB ID: %d\n", fb->base.id);
Rob Clarkf7eff602012-09-05 21:48:38 +0000467 kref_put(&fb->refcount, drm_framebuffer_free);
468}
469EXPORT_SYMBOL(drm_framebuffer_unreference);
470
471/**
472 * drm_framebuffer_reference - incr the fb refcnt
Daniel Vetter065a50ed2012-12-02 00:09:18 +0100473 * @fb: framebuffer
Rob Clarkf7eff602012-09-05 21:48:38 +0000474 */
475void drm_framebuffer_reference(struct drm_framebuffer *fb)
476{
477 DRM_DEBUG("FB ID: %d\n", fb->base.id);
478 kref_get(&fb->refcount);
479}
480EXPORT_SYMBOL(drm_framebuffer_reference);
481
Daniel Vetter2b677e82012-12-10 21:16:05 +0100482static void drm_framebuffer_free_bug(struct kref *kref)
483{
484 BUG();
485}
486
Daniel Vetter6c2a7532012-12-11 00:59:24 +0100487static void __drm_framebuffer_unreference(struct drm_framebuffer *fb)
488{
489 DRM_DEBUG("FB ID: %d\n", fb->base.id);
490 kref_put(&fb->refcount, drm_framebuffer_free_bug);
491}
492
Daniel Vetter2b677e82012-12-10 21:16:05 +0100493/* dev->mode_config.fb_lock must be held! */
494static void __drm_framebuffer_unregister(struct drm_device *dev,
495 struct drm_framebuffer *fb)
496{
497 mutex_lock(&dev->mode_config.idr_mutex);
498 idr_remove(&dev->mode_config.crtc_idr, fb->base.id);
499 mutex_unlock(&dev->mode_config.idr_mutex);
500
501 fb->base.id = 0;
502
Daniel Vetter6c2a7532012-12-11 00:59:24 +0100503 __drm_framebuffer_unreference(fb);
Daniel Vetter2b677e82012-12-10 21:16:05 +0100504}
505
Dave Airlief453ba02008-11-07 14:05:41 -0800506/**
Daniel Vetter36206362012-12-10 20:42:17 +0100507 * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr
508 * @fb: fb to unregister
509 *
510 * Drivers need to call this when cleaning up driver-private framebuffers, e.g.
511 * those used for fbdev. Note that the caller must hold a reference of it's own,
512 * i.e. the object may not be destroyed through this call (since it'll lead to a
513 * locking inversion).
514 */
515void drm_framebuffer_unregister_private(struct drm_framebuffer *fb)
516{
Daniel Vetter2b677e82012-12-10 21:16:05 +0100517 struct drm_device *dev = fb->dev;
518
519 mutex_lock(&dev->mode_config.fb_lock);
520 /* Mark fb as reaped and drop idr ref. */
521 __drm_framebuffer_unregister(dev, fb);
522 mutex_unlock(&dev->mode_config.fb_lock);
Daniel Vetter36206362012-12-10 20:42:17 +0100523}
524EXPORT_SYMBOL(drm_framebuffer_unregister_private);
525
526/**
Dave Airlief453ba02008-11-07 14:05:41 -0800527 * drm_framebuffer_cleanup - remove a framebuffer object
528 * @fb: framebuffer to remove
529 *
Daniel Vetter36206362012-12-10 20:42:17 +0100530 * Cleanup references to a user-created framebuffer. This function is intended
531 * to be used from the drivers ->destroy callback.
532 *
533 * Note that this function does not remove the fb from active usuage - if it is
534 * still used anywhere, hilarity can ensue since userspace could call getfb on
535 * the id and get back -EINVAL. Obviously no concern at driver unload time.
536 *
537 * Also, the framebuffer will not be removed from the lookup idr - for
538 * user-created framebuffers this will happen in in the rmfb ioctl. For
539 * driver-private objects (e.g. for fbdev) drivers need to explicitly call
540 * drm_framebuffer_unregister_private.
Dave Airlief453ba02008-11-07 14:05:41 -0800541 */
542void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
543{
544 struct drm_device *dev = fb->dev;
Daniel Vetter8faf6b12012-12-01 23:43:11 +0100545
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100546 mutex_lock(&dev->mode_config.fb_lock);
Rob Clarkf7eff602012-09-05 21:48:38 +0000547 list_del(&fb->head);
548 dev->mode_config.num_fb--;
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100549 mutex_unlock(&dev->mode_config.fb_lock);
Rob Clarkf7eff602012-09-05 21:48:38 +0000550}
551EXPORT_SYMBOL(drm_framebuffer_cleanup);
552
553/**
554 * drm_framebuffer_remove - remove and unreference a framebuffer object
555 * @fb: framebuffer to remove
556 *
Rob Clarkf7eff602012-09-05 21:48:38 +0000557 * Scans all the CRTCs and planes in @dev's mode_config. If they're
Daniel Vetter36206362012-12-10 20:42:17 +0100558 * using @fb, removes it, setting it to NULL. Then drops the reference to the
Daniel Vetterb62584e2012-12-11 16:51:35 +0100559 * passed-in framebuffer. Might take the modeset locks.
560 *
561 * Note that this function optimizes the cleanup away if the caller holds the
562 * last reference to the framebuffer. It is also guaranteed to not take the
563 * modeset locks in this case.
Rob Clarkf7eff602012-09-05 21:48:38 +0000564 */
565void drm_framebuffer_remove(struct drm_framebuffer *fb)
566{
567 struct drm_device *dev = fb->dev;
Dave Airlief453ba02008-11-07 14:05:41 -0800568 struct drm_crtc *crtc;
Jesse Barnes8cf5c912011-11-14 14:51:27 -0800569 struct drm_plane *plane;
Dave Airlie5ef5f722009-08-17 13:11:23 +1000570 struct drm_mode_set set;
571 int ret;
Dave Airlief453ba02008-11-07 14:05:41 -0800572
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100573 WARN_ON(!list_empty(&fb->filp_head));
Daniel Vetter8faf6b12012-12-01 23:43:11 +0100574
Daniel Vetterb62584e2012-12-11 16:51:35 +0100575 /*
576 * drm ABI mandates that we remove any deleted framebuffers from active
577 * useage. But since most sane clients only remove framebuffers they no
578 * longer need, try to optimize this away.
579 *
580 * Since we're holding a reference ourselves, observing a refcount of 1
581 * means that we're the last holder and can skip it. Also, the refcount
582 * can never increase from 1 again, so we don't need any barriers or
583 * locks.
584 *
585 * Note that userspace could try to race with use and instate a new
586 * usage _after_ we've cleared all current ones. End result will be an
587 * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot
588 * in this manner.
589 */
590 if (atomic_read(&fb->refcount.refcount) > 1) {
591 drm_modeset_lock_all(dev);
592 /* remove from any CRTC */
593 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
594 if (crtc->fb == fb) {
595 /* should turn off the crtc */
596 memset(&set, 0, sizeof(struct drm_mode_set));
597 set.crtc = crtc;
598 set.fb = NULL;
599 ret = drm_mode_set_config_internal(&set);
600 if (ret)
601 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
602 }
Dave Airlie5ef5f722009-08-17 13:11:23 +1000603 }
Dave Airlief453ba02008-11-07 14:05:41 -0800604
Daniel Vetterb62584e2012-12-11 16:51:35 +0100605 list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
Ville Syrjälä9125e612013-06-03 16:10:40 +0300606 if (plane->fb == fb)
607 drm_plane_force_disable(plane);
Jesse Barnes8cf5c912011-11-14 14:51:27 -0800608 }
Daniel Vetterb62584e2012-12-11 16:51:35 +0100609 drm_modeset_unlock_all(dev);
Jesse Barnes8cf5c912011-11-14 14:51:27 -0800610 }
611
Rob Clarkf7eff602012-09-05 21:48:38 +0000612 drm_framebuffer_unreference(fb);
Dave Airlief453ba02008-11-07 14:05:41 -0800613}
Rob Clarkf7eff602012-09-05 21:48:38 +0000614EXPORT_SYMBOL(drm_framebuffer_remove);
Dave Airlief453ba02008-11-07 14:05:41 -0800615
616/**
617 * drm_crtc_init - Initialise a new CRTC object
618 * @dev: DRM device
619 * @crtc: CRTC object to init
620 * @funcs: callbacks for the new CRTC
621 *
Ville Syrjäläad6f5c32013-06-05 12:39:55 +0000622 * Inits a new object created as base part of a driver crtc object.
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200623 *
624 * RETURNS:
625 * Zero on success, error code on failure.
Dave Airlief453ba02008-11-07 14:05:41 -0800626 */
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200627int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
Dave Airlief453ba02008-11-07 14:05:41 -0800628 const struct drm_crtc_funcs *funcs)
629{
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200630 int ret;
631
Dave Airlief453ba02008-11-07 14:05:41 -0800632 crtc->dev = dev;
633 crtc->funcs = funcs;
Rob Clark7c80e122012-09-04 16:35:56 +0000634 crtc->invert_dimensions = false;
Dave Airlief453ba02008-11-07 14:05:41 -0800635
Daniel Vetter84849902012-12-02 00:28:11 +0100636 drm_modeset_lock_all(dev);
Daniel Vetter29494c12012-12-02 02:18:25 +0100637 mutex_init(&crtc->mutex);
638 mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex);
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200639
640 ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
641 if (ret)
642 goto out;
Dave Airlief453ba02008-11-07 14:05:41 -0800643
Paulo Zanonibffd9de02012-05-15 18:09:05 -0300644 crtc->base.properties = &crtc->properties;
645
Dave Airlief453ba02008-11-07 14:05:41 -0800646 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
647 dev->mode_config.num_crtc++;
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200648
649 out:
Daniel Vetter84849902012-12-02 00:28:11 +0100650 drm_modeset_unlock_all(dev);
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200651
652 return ret;
Dave Airlief453ba02008-11-07 14:05:41 -0800653}
654EXPORT_SYMBOL(drm_crtc_init);
655
656/**
Ville Syrjäläad6f5c32013-06-05 12:39:55 +0000657 * drm_crtc_cleanup - Clean up the core crtc usage
Dave Airlief453ba02008-11-07 14:05:41 -0800658 * @crtc: CRTC to cleanup
659 *
Ville Syrjäläad6f5c32013-06-05 12:39:55 +0000660 * This function cleans up @crtc and removes it from the DRM mode setting
661 * core. Note that the function does *not* free the crtc structure itself,
662 * this is the responsibility of the caller.
Dave Airlief453ba02008-11-07 14:05:41 -0800663 */
664void drm_crtc_cleanup(struct drm_crtc *crtc)
665{
666 struct drm_device *dev = crtc->dev;
667
Sachin Kamat9e1c1562012-11-19 09:44:56 +0000668 kfree(crtc->gamma_store);
669 crtc->gamma_store = NULL;
Dave Airlief453ba02008-11-07 14:05:41 -0800670
671 drm_mode_object_put(dev, &crtc->base);
672 list_del(&crtc->head);
673 dev->mode_config.num_crtc--;
674}
675EXPORT_SYMBOL(drm_crtc_cleanup);
676
677/**
678 * drm_mode_probed_add - add a mode to a connector's probed mode list
679 * @connector: connector the new mode
680 * @mode: mode data
681 *
Dave Airlief453ba02008-11-07 14:05:41 -0800682 * Add @mode to @connector's mode list for later use.
683 */
684void drm_mode_probed_add(struct drm_connector *connector,
685 struct drm_display_mode *mode)
686{
Ville Syrjälä990256a2013-05-31 12:17:07 +0000687 list_add_tail(&mode->head, &connector->probed_modes);
Dave Airlief453ba02008-11-07 14:05:41 -0800688}
689EXPORT_SYMBOL(drm_mode_probed_add);
690
Lespiau, Damien86f422d2013-08-20 00:53:06 +0100691/*
Dave Airlief453ba02008-11-07 14:05:41 -0800692 * drm_mode_remove - remove and free a mode
693 * @connector: connector list to modify
694 * @mode: mode to remove
695 *
Dave Airlief453ba02008-11-07 14:05:41 -0800696 * Remove @mode from @connector's mode list, then free it.
697 */
Lespiau, Damien86f422d2013-08-20 00:53:06 +0100698static void drm_mode_remove(struct drm_connector *connector,
699 struct drm_display_mode *mode)
Dave Airlief453ba02008-11-07 14:05:41 -0800700{
701 list_del(&mode->head);
Sascha Hauer554f1d72012-02-01 11:38:19 +0100702 drm_mode_destroy(connector->dev, mode);
Dave Airlief453ba02008-11-07 14:05:41 -0800703}
Dave Airlief453ba02008-11-07 14:05:41 -0800704
705/**
706 * drm_connector_init - Init a preallocated connector
707 * @dev: DRM device
708 * @connector: the connector to init
709 * @funcs: callbacks for this connector
Daniel Vetter065a50ed2012-12-02 00:09:18 +0100710 * @connector_type: user visible type of the connector
Dave Airlief453ba02008-11-07 14:05:41 -0800711 *
Dave Airlief453ba02008-11-07 14:05:41 -0800712 * Initialises a preallocated connector. Connectors should be
713 * subclassed as part of driver connector objects.
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200714 *
715 * RETURNS:
716 * Zero on success, error code on failure.
Dave Airlief453ba02008-11-07 14:05:41 -0800717 */
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200718int drm_connector_init(struct drm_device *dev,
719 struct drm_connector *connector,
720 const struct drm_connector_funcs *funcs,
721 int connector_type)
Dave Airlief453ba02008-11-07 14:05:41 -0800722{
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200723 int ret;
Ilia Mirkinb21e3af2013-08-07 22:34:48 -0400724 struct ida *connector_ida =
725 &drm_connector_enum_list[connector_type].ida;
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200726
Daniel Vetter84849902012-12-02 00:28:11 +0100727 drm_modeset_lock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -0800728
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200729 ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
730 if (ret)
731 goto out;
732
Paulo Zanoni7e3bdf42012-05-15 18:09:01 -0300733 connector->base.properties = &connector->properties;
Dave Airlief453ba02008-11-07 14:05:41 -0800734 connector->dev = dev;
735 connector->funcs = funcs;
Dave Airlief453ba02008-11-07 14:05:41 -0800736 connector->connector_type = connector_type;
737 connector->connector_type_id =
Ilia Mirkinb21e3af2013-08-07 22:34:48 -0400738 ida_simple_get(connector_ida, 1, 0, GFP_KERNEL);
739 if (connector->connector_type_id < 0) {
740 ret = connector->connector_type_id;
741 drm_mode_object_put(dev, &connector->base);
742 goto out;
743 }
Dave Airlief453ba02008-11-07 14:05:41 -0800744 INIT_LIST_HEAD(&connector->probed_modes);
745 INIT_LIST_HEAD(&connector->modes);
746 connector->edid_blob_ptr = NULL;
Daniel Vetter5e2cb2f2012-10-23 18:23:35 +0000747 connector->status = connector_status_unknown;
Dave Airlief453ba02008-11-07 14:05:41 -0800748
749 list_add_tail(&connector->head, &dev->mode_config.connector_list);
750 dev->mode_config.num_connector++;
751
Thomas Hellstroma7331e52011-10-22 10:36:19 +0200752 if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
Rob Clark58495562012-10-11 20:50:56 -0500753 drm_object_attach_property(&connector->base,
Thomas Hellstroma7331e52011-10-22 10:36:19 +0200754 dev->mode_config.edid_property,
755 0);
Dave Airlief453ba02008-11-07 14:05:41 -0800756
Rob Clark58495562012-10-11 20:50:56 -0500757 drm_object_attach_property(&connector->base,
Dave Airlief453ba02008-11-07 14:05:41 -0800758 dev->mode_config.dpms_property, 0);
759
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200760 out:
Daniel Vetter84849902012-12-02 00:28:11 +0100761 drm_modeset_unlock_all(dev);
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200762
763 return ret;
Dave Airlief453ba02008-11-07 14:05:41 -0800764}
765EXPORT_SYMBOL(drm_connector_init);
766
767/**
768 * drm_connector_cleanup - cleans up an initialised connector
769 * @connector: connector to cleanup
770 *
Dave Airlief453ba02008-11-07 14:05:41 -0800771 * Cleans up the connector but doesn't free the object.
772 */
773void drm_connector_cleanup(struct drm_connector *connector)
774{
775 struct drm_device *dev = connector->dev;
776 struct drm_display_mode *mode, *t;
777
778 list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
779 drm_mode_remove(connector, mode);
780
781 list_for_each_entry_safe(mode, t, &connector->modes, head)
782 drm_mode_remove(connector, mode);
783
Ilia Mirkinb21e3af2013-08-07 22:34:48 -0400784 ida_remove(&drm_connector_enum_list[connector->connector_type].ida,
785 connector->connector_type_id);
786
Dave Airlief453ba02008-11-07 14:05:41 -0800787 drm_mode_object_put(dev, &connector->base);
788 list_del(&connector->head);
Joonyoung Shim6380c502011-08-27 02:06:21 +0000789 dev->mode_config.num_connector--;
Dave Airlief453ba02008-11-07 14:05:41 -0800790}
791EXPORT_SYMBOL(drm_connector_cleanup);
792
Dave Airliecbc7e222012-02-20 14:16:40 +0000793void drm_connector_unplug_all(struct drm_device *dev)
794{
795 struct drm_connector *connector;
796
797 /* taking the mode config mutex ends up in a clash with sysfs */
798 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
799 drm_sysfs_connector_remove(connector);
800
801}
802EXPORT_SYMBOL(drm_connector_unplug_all);
803
Sean Paul3b336ec2013-08-14 16:47:37 -0400804int drm_bridge_init(struct drm_device *dev, struct drm_bridge *bridge,
805 const struct drm_bridge_funcs *funcs)
806{
807 int ret;
808
809 drm_modeset_lock_all(dev);
810
811 ret = drm_mode_object_get(dev, &bridge->base, DRM_MODE_OBJECT_BRIDGE);
812 if (ret)
813 goto out;
814
815 bridge->dev = dev;
816 bridge->funcs = funcs;
817
818 list_add_tail(&bridge->head, &dev->mode_config.bridge_list);
819 dev->mode_config.num_bridge++;
820
821 out:
822 drm_modeset_unlock_all(dev);
823 return ret;
824}
825EXPORT_SYMBOL(drm_bridge_init);
826
827void drm_bridge_cleanup(struct drm_bridge *bridge)
828{
829 struct drm_device *dev = bridge->dev;
830
831 drm_modeset_lock_all(dev);
832 drm_mode_object_put(dev, &bridge->base);
833 list_del(&bridge->head);
834 dev->mode_config.num_bridge--;
835 drm_modeset_unlock_all(dev);
836}
837EXPORT_SYMBOL(drm_bridge_cleanup);
838
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200839int drm_encoder_init(struct drm_device *dev,
Dave Airliecbc7e222012-02-20 14:16:40 +0000840 struct drm_encoder *encoder,
841 const struct drm_encoder_funcs *funcs,
842 int encoder_type)
Dave Airlief453ba02008-11-07 14:05:41 -0800843{
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200844 int ret;
845
Daniel Vetter84849902012-12-02 00:28:11 +0100846 drm_modeset_lock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -0800847
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200848 ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
849 if (ret)
850 goto out;
Dave Airlief453ba02008-11-07 14:05:41 -0800851
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200852 encoder->dev = dev;
Dave Airlief453ba02008-11-07 14:05:41 -0800853 encoder->encoder_type = encoder_type;
854 encoder->funcs = funcs;
855
856 list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
857 dev->mode_config.num_encoder++;
858
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200859 out:
Daniel Vetter84849902012-12-02 00:28:11 +0100860 drm_modeset_unlock_all(dev);
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200861
862 return ret;
Dave Airlief453ba02008-11-07 14:05:41 -0800863}
864EXPORT_SYMBOL(drm_encoder_init);
865
866void drm_encoder_cleanup(struct drm_encoder *encoder)
867{
868 struct drm_device *dev = encoder->dev;
Daniel Vetter84849902012-12-02 00:28:11 +0100869 drm_modeset_lock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -0800870 drm_mode_object_put(dev, &encoder->base);
871 list_del(&encoder->head);
Joonyoung Shim6380c502011-08-27 02:06:21 +0000872 dev->mode_config.num_encoder--;
Daniel Vetter84849902012-12-02 00:28:11 +0100873 drm_modeset_unlock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -0800874}
875EXPORT_SYMBOL(drm_encoder_cleanup);
876
Ville Syrjälä35f2c3a2013-06-05 15:39:56 +0300877/**
878 * drm_plane_init - Initialise a new plane object
879 * @dev: DRM device
880 * @plane: plane object to init
881 * @possible_crtcs: bitmask of possible CRTCs
882 * @funcs: callbacks for the new plane
883 * @formats: array of supported formats (%DRM_FORMAT_*)
884 * @format_count: number of elements in @formats
885 * @priv: plane is private (hidden from userspace)?
886 *
887 * Inits a new object created as base part of a driver plane object.
888 *
889 * RETURNS:
890 * Zero on success, error code on failure.
891 */
Jesse Barnes8cf5c912011-11-14 14:51:27 -0800892int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
893 unsigned long possible_crtcs,
894 const struct drm_plane_funcs *funcs,
Rob Clark0a7eb242011-12-13 20:19:36 -0600895 const uint32_t *formats, uint32_t format_count,
896 bool priv)
Jesse Barnes8cf5c912011-11-14 14:51:27 -0800897{
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200898 int ret;
899
Daniel Vetter84849902012-12-02 00:28:11 +0100900 drm_modeset_lock_all(dev);
Jesse Barnes8cf5c912011-11-14 14:51:27 -0800901
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200902 ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
903 if (ret)
904 goto out;
905
Rob Clark4d939142012-05-17 02:23:27 -0600906 plane->base.properties = &plane->properties;
Jesse Barnes8cf5c912011-11-14 14:51:27 -0800907 plane->dev = dev;
Jesse Barnes8cf5c912011-11-14 14:51:27 -0800908 plane->funcs = funcs;
909 plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
910 GFP_KERNEL);
911 if (!plane->format_types) {
912 DRM_DEBUG_KMS("out of memory when allocating plane\n");
913 drm_mode_object_put(dev, &plane->base);
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200914 ret = -ENOMEM;
915 goto out;
Jesse Barnes8cf5c912011-11-14 14:51:27 -0800916 }
917
Jesse Barnes308e5bc2011-11-14 14:51:28 -0800918 memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
Jesse Barnes8cf5c912011-11-14 14:51:27 -0800919 plane->format_count = format_count;
920 plane->possible_crtcs = possible_crtcs;
921
Rob Clark0a7eb242011-12-13 20:19:36 -0600922 /* private planes are not exposed to userspace, but depending on
923 * display hardware, might be convenient to allow sharing programming
924 * for the scanout engine with the crtc implementation.
925 */
926 if (!priv) {
927 list_add_tail(&plane->head, &dev->mode_config.plane_list);
928 dev->mode_config.num_plane++;
929 } else {
930 INIT_LIST_HEAD(&plane->head);
931 }
Jesse Barnes8cf5c912011-11-14 14:51:27 -0800932
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200933 out:
Daniel Vetter84849902012-12-02 00:28:11 +0100934 drm_modeset_unlock_all(dev);
Jesse Barnes8cf5c912011-11-14 14:51:27 -0800935
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200936 return ret;
Jesse Barnes8cf5c912011-11-14 14:51:27 -0800937}
938EXPORT_SYMBOL(drm_plane_init);
939
Ville Syrjälä35f2c3a2013-06-05 15:39:56 +0300940/**
941 * drm_plane_cleanup - Clean up the core plane usage
942 * @plane: plane to cleanup
943 *
944 * This function cleans up @plane and removes it from the DRM mode setting
945 * core. Note that the function does *not* free the plane structure itself,
946 * this is the responsibility of the caller.
947 */
Jesse Barnes8cf5c912011-11-14 14:51:27 -0800948void drm_plane_cleanup(struct drm_plane *plane)
949{
950 struct drm_device *dev = plane->dev;
951
Daniel Vetter84849902012-12-02 00:28:11 +0100952 drm_modeset_lock_all(dev);
Jesse Barnes8cf5c912011-11-14 14:51:27 -0800953 kfree(plane->format_types);
954 drm_mode_object_put(dev, &plane->base);
Rob Clark0a7eb242011-12-13 20:19:36 -0600955 /* if not added to a list, it must be a private plane */
956 if (!list_empty(&plane->head)) {
957 list_del(&plane->head);
958 dev->mode_config.num_plane--;
959 }
Daniel Vetter84849902012-12-02 00:28:11 +0100960 drm_modeset_unlock_all(dev);
Jesse Barnes8cf5c912011-11-14 14:51:27 -0800961}
962EXPORT_SYMBOL(drm_plane_cleanup);
963
Ville Syrjälä35f2c3a2013-06-05 15:39:56 +0300964/**
965 * drm_plane_force_disable - Forcibly disable a plane
966 * @plane: plane to disable
967 *
968 * Forces the plane to be disabled.
969 *
970 * Used when the plane's current framebuffer is destroyed,
971 * and when restoring fbdev mode.
972 */
Ville Syrjälä9125e612013-06-03 16:10:40 +0300973void drm_plane_force_disable(struct drm_plane *plane)
974{
975 int ret;
976
977 if (!plane->fb)
978 return;
979
980 ret = plane->funcs->disable_plane(plane);
981 if (ret)
982 DRM_ERROR("failed to disable plane with busy fb\n");
983 /* disconnect the plane from the fb and crtc: */
984 __drm_framebuffer_unreference(plane->fb);
985 plane->fb = NULL;
986 plane->crtc = NULL;
987}
988EXPORT_SYMBOL(drm_plane_force_disable);
989
Dave Airlief453ba02008-11-07 14:05:41 -0800990/**
991 * drm_mode_create - create a new display mode
992 * @dev: DRM device
993 *
Dave Airlief453ba02008-11-07 14:05:41 -0800994 * Create a new drm_display_mode, give it an ID, and return it.
995 *
996 * RETURNS:
997 * Pointer to new mode on success, NULL on error.
998 */
999struct drm_display_mode *drm_mode_create(struct drm_device *dev)
1000{
1001 struct drm_display_mode *nmode;
1002
1003 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
1004 if (!nmode)
1005 return NULL;
1006
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +02001007 if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) {
1008 kfree(nmode);
1009 return NULL;
1010 }
1011
Dave Airlief453ba02008-11-07 14:05:41 -08001012 return nmode;
1013}
1014EXPORT_SYMBOL(drm_mode_create);
1015
1016/**
1017 * drm_mode_destroy - remove a mode
1018 * @dev: DRM device
1019 * @mode: mode to remove
1020 *
Dave Airlief453ba02008-11-07 14:05:41 -08001021 * Free @mode's unique identifier, then free it.
1022 */
1023void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
1024{
Ville Syrjäläee34ab52012-03-13 12:35:43 +02001025 if (!mode)
1026 return;
1027
Dave Airlief453ba02008-11-07 14:05:41 -08001028 drm_mode_object_put(dev, &mode->base);
1029
1030 kfree(mode);
1031}
1032EXPORT_SYMBOL(drm_mode_destroy);
1033
1034static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
1035{
1036 struct drm_property *edid;
1037 struct drm_property *dpms;
Dave Airlief453ba02008-11-07 14:05:41 -08001038
1039 /*
1040 * Standard properties (apply to all connectors)
1041 */
1042 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
1043 DRM_MODE_PROP_IMMUTABLE,
1044 "EDID", 0);
1045 dev->mode_config.edid_property = edid;
1046
Sascha Hauer4a67d392012-02-06 10:58:17 +01001047 dpms = drm_property_create_enum(dev, 0,
1048 "DPMS", drm_dpms_enum_list,
1049 ARRAY_SIZE(drm_dpms_enum_list));
Dave Airlief453ba02008-11-07 14:05:41 -08001050 dev->mode_config.dpms_property = dpms;
1051
1052 return 0;
1053}
1054
1055/**
1056 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
1057 * @dev: DRM device
1058 *
1059 * Called by a driver the first time a DVI-I connector is made.
1060 */
1061int drm_mode_create_dvi_i_properties(struct drm_device *dev)
1062{
1063 struct drm_property *dvi_i_selector;
1064 struct drm_property *dvi_i_subconnector;
Dave Airlief453ba02008-11-07 14:05:41 -08001065
1066 if (dev->mode_config.dvi_i_select_subconnector_property)
1067 return 0;
1068
1069 dvi_i_selector =
Sascha Hauer4a67d392012-02-06 10:58:17 +01001070 drm_property_create_enum(dev, 0,
Dave Airlief453ba02008-11-07 14:05:41 -08001071 "select subconnector",
Sascha Hauer4a67d392012-02-06 10:58:17 +01001072 drm_dvi_i_select_enum_list,
Dave Airlief453ba02008-11-07 14:05:41 -08001073 ARRAY_SIZE(drm_dvi_i_select_enum_list));
Dave Airlief453ba02008-11-07 14:05:41 -08001074 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
1075
Sascha Hauer4a67d392012-02-06 10:58:17 +01001076 dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
Dave Airlief453ba02008-11-07 14:05:41 -08001077 "subconnector",
Sascha Hauer4a67d392012-02-06 10:58:17 +01001078 drm_dvi_i_subconnector_enum_list,
Dave Airlief453ba02008-11-07 14:05:41 -08001079 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
Dave Airlief453ba02008-11-07 14:05:41 -08001080 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
1081
1082 return 0;
1083}
1084EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
1085
1086/**
1087 * drm_create_tv_properties - create TV specific connector properties
1088 * @dev: DRM device
1089 * @num_modes: number of different TV formats (modes) supported
1090 * @modes: array of pointers to strings containing name of each format
1091 *
1092 * Called by a driver's TV initialization routine, this function creates
1093 * the TV specific connector properties for a given device. Caller is
1094 * responsible for allocating a list of format names and passing them to
1095 * this routine.
1096 */
1097int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
1098 char *modes[])
1099{
1100 struct drm_property *tv_selector;
1101 struct drm_property *tv_subconnector;
1102 int i;
1103
1104 if (dev->mode_config.tv_select_subconnector_property)
1105 return 0;
1106
1107 /*
1108 * Basic connector properties
1109 */
Sascha Hauer4a67d392012-02-06 10:58:17 +01001110 tv_selector = drm_property_create_enum(dev, 0,
Dave Airlief453ba02008-11-07 14:05:41 -08001111 "select subconnector",
Sascha Hauer4a67d392012-02-06 10:58:17 +01001112 drm_tv_select_enum_list,
Dave Airlief453ba02008-11-07 14:05:41 -08001113 ARRAY_SIZE(drm_tv_select_enum_list));
Dave Airlief453ba02008-11-07 14:05:41 -08001114 dev->mode_config.tv_select_subconnector_property = tv_selector;
1115
1116 tv_subconnector =
Sascha Hauer4a67d392012-02-06 10:58:17 +01001117 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
1118 "subconnector",
1119 drm_tv_subconnector_enum_list,
Dave Airlief453ba02008-11-07 14:05:41 -08001120 ARRAY_SIZE(drm_tv_subconnector_enum_list));
Dave Airlief453ba02008-11-07 14:05:41 -08001121 dev->mode_config.tv_subconnector_property = tv_subconnector;
1122
1123 /*
1124 * Other, TV specific properties: margins & TV modes.
1125 */
1126 dev->mode_config.tv_left_margin_property =
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01001127 drm_property_create_range(dev, 0, "left margin", 0, 100);
Dave Airlief453ba02008-11-07 14:05:41 -08001128
1129 dev->mode_config.tv_right_margin_property =
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01001130 drm_property_create_range(dev, 0, "right margin", 0, 100);
Dave Airlief453ba02008-11-07 14:05:41 -08001131
1132 dev->mode_config.tv_top_margin_property =
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01001133 drm_property_create_range(dev, 0, "top margin", 0, 100);
Dave Airlief453ba02008-11-07 14:05:41 -08001134
1135 dev->mode_config.tv_bottom_margin_property =
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01001136 drm_property_create_range(dev, 0, "bottom margin", 0, 100);
Dave Airlief453ba02008-11-07 14:05:41 -08001137
1138 dev->mode_config.tv_mode_property =
1139 drm_property_create(dev, DRM_MODE_PROP_ENUM,
1140 "mode", num_modes);
1141 for (i = 0; i < num_modes; i++)
1142 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
1143 i, modes[i]);
1144
Francisco Jerezb6b79022009-08-02 04:19:20 +02001145 dev->mode_config.tv_brightness_property =
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01001146 drm_property_create_range(dev, 0, "brightness", 0, 100);
Francisco Jerezb6b79022009-08-02 04:19:20 +02001147
1148 dev->mode_config.tv_contrast_property =
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01001149 drm_property_create_range(dev, 0, "contrast", 0, 100);
Francisco Jerezb6b79022009-08-02 04:19:20 +02001150
1151 dev->mode_config.tv_flicker_reduction_property =
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01001152 drm_property_create_range(dev, 0, "flicker reduction", 0, 100);
Francisco Jerezb6b79022009-08-02 04:19:20 +02001153
Francisco Jereza75f0232009-08-12 02:30:10 +02001154 dev->mode_config.tv_overscan_property =
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01001155 drm_property_create_range(dev, 0, "overscan", 0, 100);
Francisco Jereza75f0232009-08-12 02:30:10 +02001156
1157 dev->mode_config.tv_saturation_property =
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01001158 drm_property_create_range(dev, 0, "saturation", 0, 100);
Francisco Jereza75f0232009-08-12 02:30:10 +02001159
1160 dev->mode_config.tv_hue_property =
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01001161 drm_property_create_range(dev, 0, "hue", 0, 100);
Francisco Jereza75f0232009-08-12 02:30:10 +02001162
Dave Airlief453ba02008-11-07 14:05:41 -08001163 return 0;
1164}
1165EXPORT_SYMBOL(drm_mode_create_tv_properties);
1166
1167/**
1168 * drm_mode_create_scaling_mode_property - create scaling mode property
1169 * @dev: DRM device
1170 *
1171 * Called by a driver the first time it's needed, must be attached to desired
1172 * connectors.
1173 */
1174int drm_mode_create_scaling_mode_property(struct drm_device *dev)
1175{
1176 struct drm_property *scaling_mode;
Dave Airlief453ba02008-11-07 14:05:41 -08001177
1178 if (dev->mode_config.scaling_mode_property)
1179 return 0;
1180
1181 scaling_mode =
Sascha Hauer4a67d392012-02-06 10:58:17 +01001182 drm_property_create_enum(dev, 0, "scaling mode",
1183 drm_scaling_mode_enum_list,
Dave Airlief453ba02008-11-07 14:05:41 -08001184 ARRAY_SIZE(drm_scaling_mode_enum_list));
Dave Airlief453ba02008-11-07 14:05:41 -08001185
1186 dev->mode_config.scaling_mode_property = scaling_mode;
1187
1188 return 0;
1189}
1190EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
1191
1192/**
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00001193 * drm_mode_create_dirty_property - create dirty property
1194 * @dev: DRM device
1195 *
1196 * Called by a driver the first time it's needed, must be attached to desired
1197 * connectors.
1198 */
1199int drm_mode_create_dirty_info_property(struct drm_device *dev)
1200{
1201 struct drm_property *dirty_info;
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00001202
1203 if (dev->mode_config.dirty_info_property)
1204 return 0;
1205
1206 dirty_info =
Sascha Hauer4a67d392012-02-06 10:58:17 +01001207 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00001208 "dirty",
Sascha Hauer4a67d392012-02-06 10:58:17 +01001209 drm_dirty_info_enum_list,
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00001210 ARRAY_SIZE(drm_dirty_info_enum_list));
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00001211 dev->mode_config.dirty_info_property = dirty_info;
1212
1213 return 0;
1214}
1215EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
1216
Ville Syrjäläea9cbb02013-04-25 20:09:20 +03001217static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
Dave Airlief453ba02008-11-07 14:05:41 -08001218{
1219 uint32_t total_objects = 0;
1220
1221 total_objects += dev->mode_config.num_crtc;
1222 total_objects += dev->mode_config.num_connector;
1223 total_objects += dev->mode_config.num_encoder;
Sean Paul3b336ec2013-08-14 16:47:37 -04001224 total_objects += dev->mode_config.num_bridge;
Dave Airlief453ba02008-11-07 14:05:41 -08001225
Dave Airlief453ba02008-11-07 14:05:41 -08001226 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
1227 if (!group->id_list)
1228 return -ENOMEM;
1229
1230 group->num_crtcs = 0;
1231 group->num_connectors = 0;
1232 group->num_encoders = 0;
Sean Paul3b336ec2013-08-14 16:47:37 -04001233 group->num_bridges = 0;
Dave Airlief453ba02008-11-07 14:05:41 -08001234 return 0;
1235}
1236
1237int drm_mode_group_init_legacy_group(struct drm_device *dev,
1238 struct drm_mode_group *group)
1239{
1240 struct drm_crtc *crtc;
1241 struct drm_encoder *encoder;
1242 struct drm_connector *connector;
Sean Paul3b336ec2013-08-14 16:47:37 -04001243 struct drm_bridge *bridge;
Dave Airlief453ba02008-11-07 14:05:41 -08001244 int ret;
1245
1246 if ((ret = drm_mode_group_init(dev, group)))
1247 return ret;
1248
1249 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
1250 group->id_list[group->num_crtcs++] = crtc->base.id;
1251
1252 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
1253 group->id_list[group->num_crtcs + group->num_encoders++] =
1254 encoder->base.id;
1255
1256 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
1257 group->id_list[group->num_crtcs + group->num_encoders +
1258 group->num_connectors++] = connector->base.id;
1259
Sean Paul3b336ec2013-08-14 16:47:37 -04001260 list_for_each_entry(bridge, &dev->mode_config.bridge_list, head)
1261 group->id_list[group->num_crtcs + group->num_encoders +
1262 group->num_connectors + group->num_bridges++] =
1263 bridge->base.id;
1264
Dave Airlief453ba02008-11-07 14:05:41 -08001265 return 0;
1266}
Dave Airlie9c1dfc52012-03-20 06:59:29 +00001267EXPORT_SYMBOL(drm_mode_group_init_legacy_group);
Dave Airlief453ba02008-11-07 14:05:41 -08001268
1269/**
Dave Airlief453ba02008-11-07 14:05:41 -08001270 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1271 * @out: drm_mode_modeinfo struct to return to the user
1272 * @in: drm_display_mode to use
1273 *
Dave Airlief453ba02008-11-07 14:05:41 -08001274 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1275 * the user.
1276 */
Ville Syrjälä93bbf6d2012-03-13 12:35:47 +02001277static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
1278 const struct drm_display_mode *in)
Dave Airlief453ba02008-11-07 14:05:41 -08001279{
Ville Syrjäläe36fae32012-03-13 12:35:40 +02001280 WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX ||
1281 in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX ||
1282 in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX ||
1283 in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX ||
1284 in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX,
1285 "timing values too large for mode info\n");
1286
Dave Airlief453ba02008-11-07 14:05:41 -08001287 out->clock = in->clock;
1288 out->hdisplay = in->hdisplay;
1289 out->hsync_start = in->hsync_start;
1290 out->hsync_end = in->hsync_end;
1291 out->htotal = in->htotal;
1292 out->hskew = in->hskew;
1293 out->vdisplay = in->vdisplay;
1294 out->vsync_start = in->vsync_start;
1295 out->vsync_end = in->vsync_end;
1296 out->vtotal = in->vtotal;
1297 out->vscan = in->vscan;
1298 out->vrefresh = in->vrefresh;
1299 out->flags = in->flags;
1300 out->type = in->type;
1301 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1302 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1303}
1304
1305/**
Marc-André Lureau74afee72013-10-18 16:11:27 +02001306 * drm_crtc_convert_umode - convert a modeinfo into a drm_display_mode
Dave Airlief453ba02008-11-07 14:05:41 -08001307 * @out: drm_display_mode to return to the user
1308 * @in: drm_mode_modeinfo to use
1309 *
Dave Airlief453ba02008-11-07 14:05:41 -08001310 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1311 * the caller.
Ville Syrjälä90367bf2012-03-13 12:35:44 +02001312 *
1313 * RETURNS:
1314 * Zero on success, errno on failure.
Dave Airlief453ba02008-11-07 14:05:41 -08001315 */
Ville Syrjälä93bbf6d2012-03-13 12:35:47 +02001316static int drm_crtc_convert_umode(struct drm_display_mode *out,
1317 const struct drm_mode_modeinfo *in)
Dave Airlief453ba02008-11-07 14:05:41 -08001318{
Ville Syrjälä90367bf2012-03-13 12:35:44 +02001319 if (in->clock > INT_MAX || in->vrefresh > INT_MAX)
1320 return -ERANGE;
1321
Damien Lespiau5848ad42013-09-27 12:11:50 +01001322 if ((in->flags & DRM_MODE_FLAG_3D_MASK) > DRM_MODE_FLAG_3D_MAX)
1323 return -EINVAL;
1324
Dave Airlief453ba02008-11-07 14:05:41 -08001325 out->clock = in->clock;
1326 out->hdisplay = in->hdisplay;
1327 out->hsync_start = in->hsync_start;
1328 out->hsync_end = in->hsync_end;
1329 out->htotal = in->htotal;
1330 out->hskew = in->hskew;
1331 out->vdisplay = in->vdisplay;
1332 out->vsync_start = in->vsync_start;
1333 out->vsync_end = in->vsync_end;
1334 out->vtotal = in->vtotal;
1335 out->vscan = in->vscan;
1336 out->vrefresh = in->vrefresh;
1337 out->flags = in->flags;
1338 out->type = in->type;
1339 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1340 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
Ville Syrjälä90367bf2012-03-13 12:35:44 +02001341
1342 return 0;
Dave Airlief453ba02008-11-07 14:05:41 -08001343}
1344
1345/**
1346 * drm_mode_getresources - get graphics configuration
Daniel Vetter065a50ed2012-12-02 00:09:18 +01001347 * @dev: drm device for the ioctl
1348 * @data: data pointer for the ioctl
1349 * @file_priv: drm file for the ioctl call
Dave Airlief453ba02008-11-07 14:05:41 -08001350 *
Dave Airlief453ba02008-11-07 14:05:41 -08001351 * Construct a set of configuration description structures and return
1352 * them to the user, including CRTC, connector and framebuffer configuration.
1353 *
1354 * Called by the user via ioctl.
1355 *
1356 * RETURNS:
1357 * Zero on success, errno on failure.
1358 */
1359int drm_mode_getresources(struct drm_device *dev, void *data,
1360 struct drm_file *file_priv)
1361{
1362 struct drm_mode_card_res *card_res = data;
1363 struct list_head *lh;
1364 struct drm_framebuffer *fb;
1365 struct drm_connector *connector;
1366 struct drm_crtc *crtc;
1367 struct drm_encoder *encoder;
1368 int ret = 0;
1369 int connector_count = 0;
1370 int crtc_count = 0;
1371 int fb_count = 0;
1372 int encoder_count = 0;
1373 int copied = 0, i;
1374 uint32_t __user *fb_id;
1375 uint32_t __user *crtc_id;
1376 uint32_t __user *connector_id;
1377 uint32_t __user *encoder_id;
1378 struct drm_mode_group *mode_group;
1379
Dave Airliefb3b06c2011-02-08 13:55:21 +10001380 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1381 return -EINVAL;
1382
Dave Airlief453ba02008-11-07 14:05:41 -08001383
Daniel Vetter4b096ac2012-12-10 21:19:18 +01001384 mutex_lock(&file_priv->fbs_lock);
Dave Airlief453ba02008-11-07 14:05:41 -08001385 /*
1386 * For the non-control nodes we need to limit the list of resources
1387 * by IDs in the group list for this node
1388 */
1389 list_for_each(lh, &file_priv->fbs)
1390 fb_count++;
1391
Daniel Vetter4b096ac2012-12-10 21:19:18 +01001392 /* handle this in 4 parts */
1393 /* FBs */
1394 if (card_res->count_fbs >= fb_count) {
1395 copied = 0;
1396 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1397 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
1398 if (put_user(fb->base.id, fb_id + copied)) {
1399 mutex_unlock(&file_priv->fbs_lock);
1400 return -EFAULT;
1401 }
1402 copied++;
1403 }
1404 }
1405 card_res->count_fbs = fb_count;
1406 mutex_unlock(&file_priv->fbs_lock);
1407
1408 drm_modeset_lock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08001409 mode_group = &file_priv->master->minor->mode_group;
1410 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1411
1412 list_for_each(lh, &dev->mode_config.crtc_list)
1413 crtc_count++;
1414
1415 list_for_each(lh, &dev->mode_config.connector_list)
1416 connector_count++;
1417
1418 list_for_each(lh, &dev->mode_config.encoder_list)
1419 encoder_count++;
1420 } else {
1421
1422 crtc_count = mode_group->num_crtcs;
1423 connector_count = mode_group->num_connectors;
1424 encoder_count = mode_group->num_encoders;
1425 }
1426
1427 card_res->max_height = dev->mode_config.max_height;
1428 card_res->min_height = dev->mode_config.min_height;
1429 card_res->max_width = dev->mode_config.max_width;
1430 card_res->min_width = dev->mode_config.min_width;
1431
Dave Airlief453ba02008-11-07 14:05:41 -08001432 /* CRTCs */
1433 if (card_res->count_crtcs >= crtc_count) {
1434 copied = 0;
1435 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1436 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1437 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1438 head) {
Jerome Glisse94401062010-07-15 15:43:25 -04001439 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
Dave Airlief453ba02008-11-07 14:05:41 -08001440 if (put_user(crtc->base.id, crtc_id + copied)) {
1441 ret = -EFAULT;
1442 goto out;
1443 }
1444 copied++;
1445 }
1446 } else {
1447 for (i = 0; i < mode_group->num_crtcs; i++) {
1448 if (put_user(mode_group->id_list[i],
1449 crtc_id + copied)) {
1450 ret = -EFAULT;
1451 goto out;
1452 }
1453 copied++;
1454 }
1455 }
1456 }
1457 card_res->count_crtcs = crtc_count;
1458
1459 /* Encoders */
1460 if (card_res->count_encoders >= encoder_count) {
1461 copied = 0;
1462 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1463 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1464 list_for_each_entry(encoder,
1465 &dev->mode_config.encoder_list,
1466 head) {
Jerome Glisse94401062010-07-15 15:43:25 -04001467 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1468 drm_get_encoder_name(encoder));
Dave Airlief453ba02008-11-07 14:05:41 -08001469 if (put_user(encoder->base.id, encoder_id +
1470 copied)) {
1471 ret = -EFAULT;
1472 goto out;
1473 }
1474 copied++;
1475 }
1476 } else {
1477 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1478 if (put_user(mode_group->id_list[i],
1479 encoder_id + copied)) {
1480 ret = -EFAULT;
1481 goto out;
1482 }
1483 copied++;
1484 }
1485
1486 }
1487 }
1488 card_res->count_encoders = encoder_count;
1489
1490 /* Connectors */
1491 if (card_res->count_connectors >= connector_count) {
1492 copied = 0;
1493 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1494 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1495 list_for_each_entry(connector,
1496 &dev->mode_config.connector_list,
1497 head) {
Jerome Glisse94401062010-07-15 15:43:25 -04001498 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1499 connector->base.id,
1500 drm_get_connector_name(connector));
Dave Airlief453ba02008-11-07 14:05:41 -08001501 if (put_user(connector->base.id,
1502 connector_id + copied)) {
1503 ret = -EFAULT;
1504 goto out;
1505 }
1506 copied++;
1507 }
1508 } else {
1509 int start = mode_group->num_crtcs +
1510 mode_group->num_encoders;
1511 for (i = start; i < start + mode_group->num_connectors; i++) {
1512 if (put_user(mode_group->id_list[i],
1513 connector_id + copied)) {
1514 ret = -EFAULT;
1515 goto out;
1516 }
1517 copied++;
1518 }
1519 }
1520 }
1521 card_res->count_connectors = connector_count;
1522
Jerome Glisse94401062010-07-15 15:43:25 -04001523 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
Dave Airlief453ba02008-11-07 14:05:41 -08001524 card_res->count_connectors, card_res->count_encoders);
1525
1526out:
Daniel Vetter84849902012-12-02 00:28:11 +01001527 drm_modeset_unlock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08001528 return ret;
1529}
1530
1531/**
1532 * drm_mode_getcrtc - get CRTC configuration
Daniel Vetter065a50ed2012-12-02 00:09:18 +01001533 * @dev: drm device for the ioctl
1534 * @data: data pointer for the ioctl
1535 * @file_priv: drm file for the ioctl call
Dave Airlief453ba02008-11-07 14:05:41 -08001536 *
Dave Airlief453ba02008-11-07 14:05:41 -08001537 * Construct a CRTC configuration structure to return to the user.
1538 *
1539 * Called by the user via ioctl.
1540 *
1541 * RETURNS:
1542 * Zero on success, errno on failure.
1543 */
1544int drm_mode_getcrtc(struct drm_device *dev,
1545 void *data, struct drm_file *file_priv)
1546{
1547 struct drm_mode_crtc *crtc_resp = data;
1548 struct drm_crtc *crtc;
1549 struct drm_mode_object *obj;
1550 int ret = 0;
1551
Dave Airliefb3b06c2011-02-08 13:55:21 +10001552 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1553 return -EINVAL;
1554
Daniel Vetter84849902012-12-02 00:28:11 +01001555 drm_modeset_lock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08001556
1557 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1558 DRM_MODE_OBJECT_CRTC);
1559 if (!obj) {
Ville Syrjäläf27657f2013-10-17 13:35:00 +03001560 ret = -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08001561 goto out;
1562 }
1563 crtc = obj_to_crtc(obj);
1564
1565 crtc_resp->x = crtc->x;
1566 crtc_resp->y = crtc->y;
1567 crtc_resp->gamma_size = crtc->gamma_size;
1568 if (crtc->fb)
1569 crtc_resp->fb_id = crtc->fb->base.id;
1570 else
1571 crtc_resp->fb_id = 0;
1572
1573 if (crtc->enabled) {
1574
1575 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1576 crtc_resp->mode_valid = 1;
1577
1578 } else {
1579 crtc_resp->mode_valid = 0;
1580 }
1581
1582out:
Daniel Vetter84849902012-12-02 00:28:11 +01001583 drm_modeset_unlock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08001584 return ret;
1585}
1586
Damien Lespiau61d8e322013-09-25 16:45:22 +01001587static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode,
1588 const struct drm_file *file_priv)
1589{
1590 /*
1591 * If user-space hasn't configured the driver to expose the stereo 3D
1592 * modes, don't expose them.
1593 */
1594 if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode))
1595 return false;
1596
1597 return true;
1598}
1599
Dave Airlief453ba02008-11-07 14:05:41 -08001600/**
1601 * drm_mode_getconnector - get connector configuration
Daniel Vetter065a50ed2012-12-02 00:09:18 +01001602 * @dev: drm device for the ioctl
1603 * @data: data pointer for the ioctl
1604 * @file_priv: drm file for the ioctl call
Dave Airlief453ba02008-11-07 14:05:41 -08001605 *
Dave Airlief453ba02008-11-07 14:05:41 -08001606 * Construct a connector configuration structure to return to the user.
1607 *
1608 * Called by the user via ioctl.
1609 *
1610 * RETURNS:
1611 * Zero on success, errno on failure.
1612 */
1613int drm_mode_getconnector(struct drm_device *dev, void *data,
1614 struct drm_file *file_priv)
1615{
1616 struct drm_mode_get_connector *out_resp = data;
1617 struct drm_mode_object *obj;
1618 struct drm_connector *connector;
1619 struct drm_display_mode *mode;
1620 int mode_count = 0;
1621 int props_count = 0;
1622 int encoders_count = 0;
1623 int ret = 0;
1624 int copied = 0;
1625 int i;
1626 struct drm_mode_modeinfo u_mode;
1627 struct drm_mode_modeinfo __user *mode_ptr;
1628 uint32_t __user *prop_ptr;
1629 uint64_t __user *prop_values;
1630 uint32_t __user *encoder_ptr;
1631
Dave Airliefb3b06c2011-02-08 13:55:21 +10001632 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1633 return -EINVAL;
1634
Dave Airlief453ba02008-11-07 14:05:41 -08001635 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1636
Jerome Glisse94401062010-07-15 15:43:25 -04001637 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
Dave Airlief453ba02008-11-07 14:05:41 -08001638
Daniel Vetter7b240562012-12-12 00:35:33 +01001639 mutex_lock(&dev->mode_config.mutex);
Dave Airlief453ba02008-11-07 14:05:41 -08001640
1641 obj = drm_mode_object_find(dev, out_resp->connector_id,
1642 DRM_MODE_OBJECT_CONNECTOR);
1643 if (!obj) {
Ville Syrjäläf27657f2013-10-17 13:35:00 +03001644 ret = -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08001645 goto out;
1646 }
1647 connector = obj_to_connector(obj);
1648
Paulo Zanoni7f88a9b2012-05-15 18:09:04 -03001649 props_count = connector->properties.count;
Dave Airlief453ba02008-11-07 14:05:41 -08001650
1651 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1652 if (connector->encoder_ids[i] != 0) {
1653 encoders_count++;
1654 }
1655 }
1656
1657 if (out_resp->count_modes == 0) {
1658 connector->funcs->fill_modes(connector,
1659 dev->mode_config.max_width,
1660 dev->mode_config.max_height);
1661 }
1662
1663 /* delayed so we get modes regardless of pre-fill_modes state */
1664 list_for_each_entry(mode, &connector->modes, head)
Damien Lespiau61d8e322013-09-25 16:45:22 +01001665 if (drm_mode_expose_to_userspace(mode, file_priv))
1666 mode_count++;
Dave Airlief453ba02008-11-07 14:05:41 -08001667
1668 out_resp->connector_id = connector->base.id;
1669 out_resp->connector_type = connector->connector_type;
1670 out_resp->connector_type_id = connector->connector_type_id;
1671 out_resp->mm_width = connector->display_info.width_mm;
1672 out_resp->mm_height = connector->display_info.height_mm;
1673 out_resp->subpixel = connector->display_info.subpixel_order;
1674 out_resp->connection = connector->status;
1675 if (connector->encoder)
1676 out_resp->encoder_id = connector->encoder->base.id;
1677 else
1678 out_resp->encoder_id = 0;
1679
1680 /*
1681 * This ioctl is called twice, once to determine how much space is
1682 * needed, and the 2nd time to fill it.
1683 */
1684 if ((out_resp->count_modes >= mode_count) && mode_count) {
1685 copied = 0;
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02001686 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
Dave Airlief453ba02008-11-07 14:05:41 -08001687 list_for_each_entry(mode, &connector->modes, head) {
Damien Lespiau61d8e322013-09-25 16:45:22 +01001688 if (!drm_mode_expose_to_userspace(mode, file_priv))
1689 continue;
1690
Dave Airlief453ba02008-11-07 14:05:41 -08001691 drm_crtc_convert_to_umode(&u_mode, mode);
1692 if (copy_to_user(mode_ptr + copied,
1693 &u_mode, sizeof(u_mode))) {
1694 ret = -EFAULT;
1695 goto out;
1696 }
1697 copied++;
1698 }
1699 }
1700 out_resp->count_modes = mode_count;
1701
1702 if ((out_resp->count_props >= props_count) && props_count) {
1703 copied = 0;
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02001704 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr);
1705 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr);
Paulo Zanoni7f88a9b2012-05-15 18:09:04 -03001706 for (i = 0; i < connector->properties.count; i++) {
1707 if (put_user(connector->properties.ids[i],
1708 prop_ptr + copied)) {
1709 ret = -EFAULT;
1710 goto out;
Dave Airlief453ba02008-11-07 14:05:41 -08001711 }
Paulo Zanoni7f88a9b2012-05-15 18:09:04 -03001712
1713 if (put_user(connector->properties.values[i],
1714 prop_values + copied)) {
1715 ret = -EFAULT;
1716 goto out;
1717 }
1718 copied++;
Dave Airlief453ba02008-11-07 14:05:41 -08001719 }
1720 }
1721 out_resp->count_props = props_count;
1722
1723 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1724 copied = 0;
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02001725 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
Dave Airlief453ba02008-11-07 14:05:41 -08001726 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1727 if (connector->encoder_ids[i] != 0) {
1728 if (put_user(connector->encoder_ids[i],
1729 encoder_ptr + copied)) {
1730 ret = -EFAULT;
1731 goto out;
1732 }
1733 copied++;
1734 }
1735 }
1736 }
1737 out_resp->count_encoders = encoders_count;
1738
1739out:
Daniel Vetter7b240562012-12-12 00:35:33 +01001740 mutex_unlock(&dev->mode_config.mutex);
1741
Dave Airlief453ba02008-11-07 14:05:41 -08001742 return ret;
1743}
1744
1745int drm_mode_getencoder(struct drm_device *dev, void *data,
1746 struct drm_file *file_priv)
1747{
1748 struct drm_mode_get_encoder *enc_resp = data;
1749 struct drm_mode_object *obj;
1750 struct drm_encoder *encoder;
1751 int ret = 0;
1752
Dave Airliefb3b06c2011-02-08 13:55:21 +10001753 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1754 return -EINVAL;
1755
Daniel Vetter84849902012-12-02 00:28:11 +01001756 drm_modeset_lock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08001757 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1758 DRM_MODE_OBJECT_ENCODER);
1759 if (!obj) {
Ville Syrjäläf27657f2013-10-17 13:35:00 +03001760 ret = -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08001761 goto out;
1762 }
1763 encoder = obj_to_encoder(obj);
1764
1765 if (encoder->crtc)
1766 enc_resp->crtc_id = encoder->crtc->base.id;
1767 else
1768 enc_resp->crtc_id = 0;
1769 enc_resp->encoder_type = encoder->encoder_type;
1770 enc_resp->encoder_id = encoder->base.id;
1771 enc_resp->possible_crtcs = encoder->possible_crtcs;
1772 enc_resp->possible_clones = encoder->possible_clones;
1773
1774out:
Daniel Vetter84849902012-12-02 00:28:11 +01001775 drm_modeset_unlock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08001776 return ret;
1777}
1778
1779/**
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001780 * drm_mode_getplane_res - get plane info
1781 * @dev: DRM device
1782 * @data: ioctl data
1783 * @file_priv: DRM file info
1784 *
1785 * Return an plane count and set of IDs.
1786 */
1787int drm_mode_getplane_res(struct drm_device *dev, void *data,
1788 struct drm_file *file_priv)
1789{
1790 struct drm_mode_get_plane_res *plane_resp = data;
1791 struct drm_mode_config *config;
1792 struct drm_plane *plane;
1793 uint32_t __user *plane_ptr;
1794 int copied = 0, ret = 0;
1795
1796 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1797 return -EINVAL;
1798
Daniel Vetter84849902012-12-02 00:28:11 +01001799 drm_modeset_lock_all(dev);
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001800 config = &dev->mode_config;
1801
1802 /*
1803 * This ioctl is called twice, once to determine how much space is
1804 * needed, and the 2nd time to fill it.
1805 */
1806 if (config->num_plane &&
1807 (plane_resp->count_planes >= config->num_plane)) {
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02001808 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001809
1810 list_for_each_entry(plane, &config->plane_list, head) {
1811 if (put_user(plane->base.id, plane_ptr + copied)) {
1812 ret = -EFAULT;
1813 goto out;
1814 }
1815 copied++;
1816 }
1817 }
1818 plane_resp->count_planes = config->num_plane;
1819
1820out:
Daniel Vetter84849902012-12-02 00:28:11 +01001821 drm_modeset_unlock_all(dev);
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001822 return ret;
1823}
1824
1825/**
1826 * drm_mode_getplane - get plane info
1827 * @dev: DRM device
1828 * @data: ioctl data
1829 * @file_priv: DRM file info
1830 *
1831 * Return plane info, including formats supported, gamma size, any
1832 * current fb, etc.
1833 */
1834int drm_mode_getplane(struct drm_device *dev, void *data,
1835 struct drm_file *file_priv)
1836{
1837 struct drm_mode_get_plane *plane_resp = data;
1838 struct drm_mode_object *obj;
1839 struct drm_plane *plane;
1840 uint32_t __user *format_ptr;
1841 int ret = 0;
1842
1843 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1844 return -EINVAL;
1845
Daniel Vetter84849902012-12-02 00:28:11 +01001846 drm_modeset_lock_all(dev);
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001847 obj = drm_mode_object_find(dev, plane_resp->plane_id,
1848 DRM_MODE_OBJECT_PLANE);
1849 if (!obj) {
1850 ret = -ENOENT;
1851 goto out;
1852 }
1853 plane = obj_to_plane(obj);
1854
1855 if (plane->crtc)
1856 plane_resp->crtc_id = plane->crtc->base.id;
1857 else
1858 plane_resp->crtc_id = 0;
1859
1860 if (plane->fb)
1861 plane_resp->fb_id = plane->fb->base.id;
1862 else
1863 plane_resp->fb_id = 0;
1864
1865 plane_resp->plane_id = plane->base.id;
1866 plane_resp->possible_crtcs = plane->possible_crtcs;
Ville Syrjälä778ad902013-06-03 16:11:42 +03001867 plane_resp->gamma_size = 0;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001868
1869 /*
1870 * This ioctl is called twice, once to determine how much space is
1871 * needed, and the 2nd time to fill it.
1872 */
1873 if (plane->format_count &&
1874 (plane_resp->count_format_types >= plane->format_count)) {
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02001875 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001876 if (copy_to_user(format_ptr,
1877 plane->format_types,
1878 sizeof(uint32_t) * plane->format_count)) {
1879 ret = -EFAULT;
1880 goto out;
1881 }
1882 }
1883 plane_resp->count_format_types = plane->format_count;
1884
1885out:
Daniel Vetter84849902012-12-02 00:28:11 +01001886 drm_modeset_unlock_all(dev);
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001887 return ret;
1888}
1889
1890/**
1891 * drm_mode_setplane - set up or tear down an plane
1892 * @dev: DRM device
1893 * @data: ioctl data*
Daniel Vetter065a50ed2012-12-02 00:09:18 +01001894 * @file_priv: DRM file info
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001895 *
1896 * Set plane info, including placement, fb, scaling, and other factors.
1897 * Or pass a NULL fb to disable.
1898 */
1899int drm_mode_setplane(struct drm_device *dev, void *data,
1900 struct drm_file *file_priv)
1901{
1902 struct drm_mode_set_plane *plane_req = data;
1903 struct drm_mode_object *obj;
1904 struct drm_plane *plane;
1905 struct drm_crtc *crtc;
Daniel Vetter6c2a7532012-12-11 00:59:24 +01001906 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001907 int ret = 0;
Ville Syrjälä42ef8782011-12-20 00:06:44 +02001908 unsigned int fb_width, fb_height;
Ville Syrjälä62443be2011-12-20 00:06:47 +02001909 int i;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001910
1911 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1912 return -EINVAL;
1913
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001914 /*
1915 * First, find the plane, crtc, and fb objects. If not available,
1916 * we don't bother to call the driver.
1917 */
1918 obj = drm_mode_object_find(dev, plane_req->plane_id,
1919 DRM_MODE_OBJECT_PLANE);
1920 if (!obj) {
1921 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1922 plane_req->plane_id);
Daniel Vetter6c2a7532012-12-11 00:59:24 +01001923 return -ENOENT;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001924 }
1925 plane = obj_to_plane(obj);
1926
1927 /* No fb means shut it down */
1928 if (!plane_req->fb_id) {
Daniel Vetter6c2a7532012-12-11 00:59:24 +01001929 drm_modeset_lock_all(dev);
1930 old_fb = plane->fb;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001931 plane->funcs->disable_plane(plane);
Ville Syrjäläe5e3b442011-12-20 00:06:43 +02001932 plane->crtc = NULL;
1933 plane->fb = NULL;
Daniel Vetter6c2a7532012-12-11 00:59:24 +01001934 drm_modeset_unlock_all(dev);
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001935 goto out;
1936 }
1937
1938 obj = drm_mode_object_find(dev, plane_req->crtc_id,
1939 DRM_MODE_OBJECT_CRTC);
1940 if (!obj) {
1941 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1942 plane_req->crtc_id);
1943 ret = -ENOENT;
1944 goto out;
1945 }
1946 crtc = obj_to_crtc(obj);
1947
Daniel Vetter786b99e2012-12-02 21:53:40 +01001948 fb = drm_framebuffer_lookup(dev, plane_req->fb_id);
1949 if (!fb) {
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001950 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1951 plane_req->fb_id);
1952 ret = -ENOENT;
1953 goto out;
1954 }
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001955
Ville Syrjälä62443be2011-12-20 00:06:47 +02001956 /* Check whether this plane supports the fb pixel format. */
1957 for (i = 0; i < plane->format_count; i++)
1958 if (fb->pixel_format == plane->format_types[i])
1959 break;
1960 if (i == plane->format_count) {
Ville Syrjälä6ba6d032013-06-10 11:15:10 +03001961 DRM_DEBUG_KMS("Invalid pixel format %s\n",
1962 drm_get_format_name(fb->pixel_format));
Ville Syrjälä62443be2011-12-20 00:06:47 +02001963 ret = -EINVAL;
1964 goto out;
1965 }
1966
Ville Syrjälä42ef8782011-12-20 00:06:44 +02001967 fb_width = fb->width << 16;
1968 fb_height = fb->height << 16;
1969
1970 /* Make sure source coordinates are inside the fb. */
1971 if (plane_req->src_w > fb_width ||
1972 plane_req->src_x > fb_width - plane_req->src_w ||
1973 plane_req->src_h > fb_height ||
1974 plane_req->src_y > fb_height - plane_req->src_h) {
1975 DRM_DEBUG_KMS("Invalid source coordinates "
1976 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1977 plane_req->src_w >> 16,
1978 ((plane_req->src_w & 0xffff) * 15625) >> 10,
1979 plane_req->src_h >> 16,
1980 ((plane_req->src_h & 0xffff) * 15625) >> 10,
1981 plane_req->src_x >> 16,
1982 ((plane_req->src_x & 0xffff) * 15625) >> 10,
1983 plane_req->src_y >> 16,
1984 ((plane_req->src_y & 0xffff) * 15625) >> 10);
1985 ret = -ENOSPC;
1986 goto out;
1987 }
1988
Ville Syrjälä687a0402011-12-20 00:06:45 +02001989 /* Give drivers some help against integer overflows */
1990 if (plane_req->crtc_w > INT_MAX ||
1991 plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
1992 plane_req->crtc_h > INT_MAX ||
1993 plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
1994 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1995 plane_req->crtc_w, plane_req->crtc_h,
1996 plane_req->crtc_x, plane_req->crtc_y);
1997 ret = -ERANGE;
1998 goto out;
1999 }
2000
Daniel Vetter6c2a7532012-12-11 00:59:24 +01002001 drm_modeset_lock_all(dev);
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002002 ret = plane->funcs->update_plane(plane, crtc, fb,
2003 plane_req->crtc_x, plane_req->crtc_y,
2004 plane_req->crtc_w, plane_req->crtc_h,
2005 plane_req->src_x, plane_req->src_y,
2006 plane_req->src_w, plane_req->src_h);
2007 if (!ret) {
Daniel Vetter6c2a7532012-12-11 00:59:24 +01002008 old_fb = plane->fb;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002009 plane->crtc = crtc;
2010 plane->fb = fb;
Daniel Vetter35f8bad2013-02-15 21:21:37 +01002011 fb = NULL;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002012 }
Daniel Vetter6c2a7532012-12-11 00:59:24 +01002013 drm_modeset_unlock_all(dev);
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002014
2015out:
Daniel Vetter6c2a7532012-12-11 00:59:24 +01002016 if (fb)
2017 drm_framebuffer_unreference(fb);
2018 if (old_fb)
2019 drm_framebuffer_unreference(old_fb);
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002020
2021 return ret;
2022}
2023
2024/**
Daniel Vetter2d13b672012-12-11 13:47:23 +01002025 * drm_mode_set_config_internal - helper to call ->set_config
2026 * @set: modeset config to set
2027 *
2028 * This is a little helper to wrap internal calls to the ->set_config driver
2029 * interface. The only thing it adds is correct refcounting dance.
2030 */
2031int drm_mode_set_config_internal(struct drm_mode_set *set)
2032{
2033 struct drm_crtc *crtc = set->crtc;
Daniel Vetter5cef29a2013-06-15 00:13:16 +02002034 struct drm_framebuffer *fb;
2035 struct drm_crtc *tmp;
Daniel Vetterb0d12322012-12-11 01:07:12 +01002036 int ret;
Daniel Vetter2d13b672012-12-11 13:47:23 +01002037
Daniel Vetter5cef29a2013-06-15 00:13:16 +02002038 /*
2039 * NOTE: ->set_config can also disable other crtcs (if we steal all
2040 * connectors from it), hence we need to refcount the fbs across all
2041 * crtcs. Atomic modeset will have saner semantics ...
2042 */
2043 list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head)
2044 tmp->old_fb = tmp->fb;
2045
Daniel Vetterb0d12322012-12-11 01:07:12 +01002046 fb = set->fb;
2047
2048 ret = crtc->funcs->set_config(set);
2049 if (ret == 0) {
Daniel Vettercc85e122013-06-15 00:13:15 +02002050 /* crtc->fb must be updated by ->set_config, enforces this. */
2051 WARN_ON(fb != crtc->fb);
Daniel Vetter5cef29a2013-06-15 00:13:16 +02002052 }
Daniel Vettercc85e122013-06-15 00:13:15 +02002053
Daniel Vetter5cef29a2013-06-15 00:13:16 +02002054 list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) {
2055 if (tmp->fb)
2056 drm_framebuffer_reference(tmp->fb);
2057 if (tmp->old_fb)
2058 drm_framebuffer_unreference(tmp->old_fb);
Daniel Vetterb0d12322012-12-11 01:07:12 +01002059 }
2060
2061 return ret;
Daniel Vetter2d13b672012-12-11 13:47:23 +01002062}
2063EXPORT_SYMBOL(drm_mode_set_config_internal);
2064
Damien Lespiauc11e9282013-09-25 16:45:30 +01002065/*
2066 * Checks that the framebuffer is big enough for the CRTC viewport
2067 * (x, y, hdisplay, vdisplay)
2068 */
2069static int drm_crtc_check_viewport(const struct drm_crtc *crtc,
2070 int x, int y,
2071 const struct drm_display_mode *mode,
2072 const struct drm_framebuffer *fb)
2073
2074{
2075 int hdisplay, vdisplay;
2076
2077 hdisplay = mode->hdisplay;
2078 vdisplay = mode->vdisplay;
2079
Damien Lespiaua0c1bbb2013-09-25 16:45:31 +01002080 if (drm_mode_is_stereo(mode)) {
2081 struct drm_display_mode adjusted = *mode;
2082
2083 drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE);
2084 hdisplay = adjusted.crtc_hdisplay;
2085 vdisplay = adjusted.crtc_vdisplay;
2086 }
2087
Damien Lespiauc11e9282013-09-25 16:45:30 +01002088 if (crtc->invert_dimensions)
2089 swap(hdisplay, vdisplay);
2090
2091 if (hdisplay > fb->width ||
2092 vdisplay > fb->height ||
2093 x > fb->width - hdisplay ||
2094 y > fb->height - vdisplay) {
2095 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
2096 fb->width, fb->height, hdisplay, vdisplay, x, y,
2097 crtc->invert_dimensions ? " (inverted)" : "");
2098 return -ENOSPC;
2099 }
2100
2101 return 0;
2102}
2103
Daniel Vetter2d13b672012-12-11 13:47:23 +01002104/**
Dave Airlief453ba02008-11-07 14:05:41 -08002105 * drm_mode_setcrtc - set CRTC configuration
Daniel Vetter065a50ed2012-12-02 00:09:18 +01002106 * @dev: drm device for the ioctl
2107 * @data: data pointer for the ioctl
2108 * @file_priv: drm file for the ioctl call
Dave Airlief453ba02008-11-07 14:05:41 -08002109 *
Dave Airlief453ba02008-11-07 14:05:41 -08002110 * Build a new CRTC configuration based on user request.
2111 *
2112 * Called by the user via ioctl.
2113 *
2114 * RETURNS:
2115 * Zero on success, errno on failure.
2116 */
2117int drm_mode_setcrtc(struct drm_device *dev, void *data,
2118 struct drm_file *file_priv)
2119{
2120 struct drm_mode_config *config = &dev->mode_config;
2121 struct drm_mode_crtc *crtc_req = data;
2122 struct drm_mode_object *obj;
Ville Syrjälä6653cc82012-03-13 12:35:38 +02002123 struct drm_crtc *crtc;
Dave Airlief453ba02008-11-07 14:05:41 -08002124 struct drm_connector **connector_set = NULL, *connector;
2125 struct drm_framebuffer *fb = NULL;
2126 struct drm_display_mode *mode = NULL;
2127 struct drm_mode_set set;
2128 uint32_t __user *set_connectors_ptr;
Laurent Pinchart4a1b0712012-05-17 13:27:21 +02002129 int ret;
Dave Airlief453ba02008-11-07 14:05:41 -08002130 int i;
2131
Dave Airliefb3b06c2011-02-08 13:55:21 +10002132 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2133 return -EINVAL;
2134
Ville Syrjälä1d97e912012-03-13 12:35:41 +02002135 /* For some reason crtc x/y offsets are signed internally. */
2136 if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX)
2137 return -ERANGE;
2138
Daniel Vetter84849902012-12-02 00:28:11 +01002139 drm_modeset_lock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08002140 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
2141 DRM_MODE_OBJECT_CRTC);
2142 if (!obj) {
Zhao Yakui58367ed2009-07-20 13:48:07 +08002143 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
Ville Syrjäläf27657f2013-10-17 13:35:00 +03002144 ret = -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08002145 goto out;
2146 }
2147 crtc = obj_to_crtc(obj);
Jerome Glisse94401062010-07-15 15:43:25 -04002148 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
Dave Airlief453ba02008-11-07 14:05:41 -08002149
2150 if (crtc_req->mode_valid) {
2151 /* If we have a mode we need a framebuffer. */
2152 /* If we pass -1, set the mode with the currently bound fb */
2153 if (crtc_req->fb_id == -1) {
Ville Syrjälä6653cc82012-03-13 12:35:38 +02002154 if (!crtc->fb) {
2155 DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
2156 ret = -EINVAL;
2157 goto out;
Dave Airlief453ba02008-11-07 14:05:41 -08002158 }
Ville Syrjälä6653cc82012-03-13 12:35:38 +02002159 fb = crtc->fb;
Daniel Vetterb0d12322012-12-11 01:07:12 +01002160 /* Make refcounting symmetric with the lookup path. */
2161 drm_framebuffer_reference(fb);
Dave Airlief453ba02008-11-07 14:05:41 -08002162 } else {
Daniel Vetter786b99e2012-12-02 21:53:40 +01002163 fb = drm_framebuffer_lookup(dev, crtc_req->fb_id);
2164 if (!fb) {
Zhao Yakui58367ed2009-07-20 13:48:07 +08002165 DRM_DEBUG_KMS("Unknown FB ID%d\n",
2166 crtc_req->fb_id);
Ville Syrjälä37c4e702013-10-17 13:35:01 +03002167 ret = -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08002168 goto out;
2169 }
Dave Airlief453ba02008-11-07 14:05:41 -08002170 }
2171
2172 mode = drm_mode_create(dev);
Ville Syrjäläee34ab52012-03-13 12:35:43 +02002173 if (!mode) {
2174 ret = -ENOMEM;
2175 goto out;
2176 }
2177
Ville Syrjälä90367bf2012-03-13 12:35:44 +02002178 ret = drm_crtc_convert_umode(mode, &crtc_req->mode);
2179 if (ret) {
2180 DRM_DEBUG_KMS("Invalid mode\n");
2181 goto out;
2182 }
2183
Dave Airlief453ba02008-11-07 14:05:41 -08002184 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
Ville Syrjälä5f61bb42012-03-13 12:35:45 +02002185
Damien Lespiauc11e9282013-09-25 16:45:30 +01002186 ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y,
2187 mode, fb);
2188 if (ret)
Ville Syrjälä5f61bb42012-03-13 12:35:45 +02002189 goto out;
Damien Lespiauc11e9282013-09-25 16:45:30 +01002190
Dave Airlief453ba02008-11-07 14:05:41 -08002191 }
2192
2193 if (crtc_req->count_connectors == 0 && mode) {
Zhao Yakui58367ed2009-07-20 13:48:07 +08002194 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
Dave Airlief453ba02008-11-07 14:05:41 -08002195 ret = -EINVAL;
2196 goto out;
2197 }
2198
Jakob Bornecrantz7781de72009-08-03 13:43:58 +01002199 if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
Zhao Yakui58367ed2009-07-20 13:48:07 +08002200 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
Dave Airlief453ba02008-11-07 14:05:41 -08002201 crtc_req->count_connectors);
2202 ret = -EINVAL;
2203 goto out;
2204 }
2205
2206 if (crtc_req->count_connectors > 0) {
2207 u32 out_id;
2208
2209 /* Avoid unbounded kernel memory allocation */
2210 if (crtc_req->count_connectors > config->num_connector) {
2211 ret = -EINVAL;
2212 goto out;
2213 }
2214
2215 connector_set = kmalloc(crtc_req->count_connectors *
2216 sizeof(struct drm_connector *),
2217 GFP_KERNEL);
2218 if (!connector_set) {
2219 ret = -ENOMEM;
2220 goto out;
2221 }
2222
2223 for (i = 0; i < crtc_req->count_connectors; i++) {
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02002224 set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
Dave Airlief453ba02008-11-07 14:05:41 -08002225 if (get_user(out_id, &set_connectors_ptr[i])) {
2226 ret = -EFAULT;
2227 goto out;
2228 }
2229
2230 obj = drm_mode_object_find(dev, out_id,
2231 DRM_MODE_OBJECT_CONNECTOR);
2232 if (!obj) {
Zhao Yakui58367ed2009-07-20 13:48:07 +08002233 DRM_DEBUG_KMS("Connector id %d unknown\n",
2234 out_id);
Ville Syrjäläf27657f2013-10-17 13:35:00 +03002235 ret = -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08002236 goto out;
2237 }
2238 connector = obj_to_connector(obj);
Jerome Glisse94401062010-07-15 15:43:25 -04002239 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
2240 connector->base.id,
2241 drm_get_connector_name(connector));
Dave Airlief453ba02008-11-07 14:05:41 -08002242
2243 connector_set[i] = connector;
2244 }
2245 }
2246
2247 set.crtc = crtc;
2248 set.x = crtc_req->x;
2249 set.y = crtc_req->y;
2250 set.mode = mode;
2251 set.connectors = connector_set;
2252 set.num_connectors = crtc_req->count_connectors;
Dave Airlie5ef5f722009-08-17 13:11:23 +10002253 set.fb = fb;
Daniel Vetter2d13b672012-12-11 13:47:23 +01002254 ret = drm_mode_set_config_internal(&set);
Dave Airlief453ba02008-11-07 14:05:41 -08002255
2256out:
Daniel Vetterb0d12322012-12-11 01:07:12 +01002257 if (fb)
2258 drm_framebuffer_unreference(fb);
2259
Dave Airlief453ba02008-11-07 14:05:41 -08002260 kfree(connector_set);
Ville Syrjäläee34ab52012-03-13 12:35:43 +02002261 drm_mode_destroy(dev, mode);
Daniel Vetter84849902012-12-02 00:28:11 +01002262 drm_modeset_unlock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08002263 return ret;
2264}
2265
Dave Airlie4c813d42013-06-20 11:48:52 +10002266static int drm_mode_cursor_common(struct drm_device *dev,
2267 struct drm_mode_cursor2 *req,
2268 struct drm_file *file_priv)
Dave Airlief453ba02008-11-07 14:05:41 -08002269{
Dave Airlief453ba02008-11-07 14:05:41 -08002270 struct drm_mode_object *obj;
2271 struct drm_crtc *crtc;
2272 int ret = 0;
2273
Dave Airliefb3b06c2011-02-08 13:55:21 +10002274 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2275 return -EINVAL;
2276
Jakob Bornecrantz7c4eaca2012-08-16 08:29:03 +00002277 if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
Dave Airlief453ba02008-11-07 14:05:41 -08002278 return -EINVAL;
Dave Airlief453ba02008-11-07 14:05:41 -08002279
Jakob Bornecrantze0c84632008-12-19 14:50:50 +10002280 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
Dave Airlief453ba02008-11-07 14:05:41 -08002281 if (!obj) {
Zhao Yakui58367ed2009-07-20 13:48:07 +08002282 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
Ville Syrjäläf27657f2013-10-17 13:35:00 +03002283 return -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08002284 }
2285 crtc = obj_to_crtc(obj);
2286
Daniel Vetterdac35662012-12-02 15:24:10 +01002287 mutex_lock(&crtc->mutex);
Dave Airlief453ba02008-11-07 14:05:41 -08002288 if (req->flags & DRM_MODE_CURSOR_BO) {
Dave Airlie4c813d42013-06-20 11:48:52 +10002289 if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) {
Dave Airlief453ba02008-11-07 14:05:41 -08002290 ret = -ENXIO;
2291 goto out;
2292 }
2293 /* Turns off the cursor if handle is 0 */
Dave Airlie4c813d42013-06-20 11:48:52 +10002294 if (crtc->funcs->cursor_set2)
2295 ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle,
2296 req->width, req->height, req->hot_x, req->hot_y);
2297 else
2298 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
2299 req->width, req->height);
Dave Airlief453ba02008-11-07 14:05:41 -08002300 }
2301
2302 if (req->flags & DRM_MODE_CURSOR_MOVE) {
2303 if (crtc->funcs->cursor_move) {
2304 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
2305 } else {
Dave Airlief453ba02008-11-07 14:05:41 -08002306 ret = -EFAULT;
2307 goto out;
2308 }
2309 }
2310out:
Daniel Vetterdac35662012-12-02 15:24:10 +01002311 mutex_unlock(&crtc->mutex);
2312
Dave Airlief453ba02008-11-07 14:05:41 -08002313 return ret;
Dave Airlie4c813d42013-06-20 11:48:52 +10002314
2315}
2316int drm_mode_cursor_ioctl(struct drm_device *dev,
2317 void *data, struct drm_file *file_priv)
2318{
2319 struct drm_mode_cursor *req = data;
2320 struct drm_mode_cursor2 new_req;
2321
2322 memcpy(&new_req, req, sizeof(struct drm_mode_cursor));
2323 new_req.hot_x = new_req.hot_y = 0;
2324
2325 return drm_mode_cursor_common(dev, &new_req, file_priv);
2326}
2327
2328int drm_mode_cursor2_ioctl(struct drm_device *dev,
2329 void *data, struct drm_file *file_priv)
2330{
2331 struct drm_mode_cursor2 *req = data;
2332 return drm_mode_cursor_common(dev, req, file_priv);
Dave Airlief453ba02008-11-07 14:05:41 -08002333}
2334
Jesse Barnes308e5bc2011-11-14 14:51:28 -08002335/* Original addfb only supported RGB formats, so figure out which one */
2336uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
2337{
2338 uint32_t fmt;
2339
2340 switch (bpp) {
2341 case 8:
Ville Syrjäläd84f0312013-01-31 19:43:38 +02002342 fmt = DRM_FORMAT_C8;
Jesse Barnes308e5bc2011-11-14 14:51:28 -08002343 break;
2344 case 16:
2345 if (depth == 15)
Ville Syrjälä04b39242011-11-17 18:05:13 +02002346 fmt = DRM_FORMAT_XRGB1555;
Jesse Barnes308e5bc2011-11-14 14:51:28 -08002347 else
Ville Syrjälä04b39242011-11-17 18:05:13 +02002348 fmt = DRM_FORMAT_RGB565;
Jesse Barnes308e5bc2011-11-14 14:51:28 -08002349 break;
2350 case 24:
Ville Syrjälä04b39242011-11-17 18:05:13 +02002351 fmt = DRM_FORMAT_RGB888;
Jesse Barnes308e5bc2011-11-14 14:51:28 -08002352 break;
2353 case 32:
2354 if (depth == 24)
Ville Syrjälä04b39242011-11-17 18:05:13 +02002355 fmt = DRM_FORMAT_XRGB8888;
Jesse Barnes308e5bc2011-11-14 14:51:28 -08002356 else if (depth == 30)
Ville Syrjälä04b39242011-11-17 18:05:13 +02002357 fmt = DRM_FORMAT_XRGB2101010;
Jesse Barnes308e5bc2011-11-14 14:51:28 -08002358 else
Ville Syrjälä04b39242011-11-17 18:05:13 +02002359 fmt = DRM_FORMAT_ARGB8888;
Jesse Barnes308e5bc2011-11-14 14:51:28 -08002360 break;
2361 default:
Ville Syrjälä04b39242011-11-17 18:05:13 +02002362 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
2363 fmt = DRM_FORMAT_XRGB8888;
Jesse Barnes308e5bc2011-11-14 14:51:28 -08002364 break;
2365 }
2366
2367 return fmt;
2368}
2369EXPORT_SYMBOL(drm_mode_legacy_fb_format);
2370
Dave Airlief453ba02008-11-07 14:05:41 -08002371/**
2372 * drm_mode_addfb - add an FB to the graphics configuration
Daniel Vetter065a50ed2012-12-02 00:09:18 +01002373 * @dev: drm device for the ioctl
2374 * @data: data pointer for the ioctl
2375 * @file_priv: drm file for the ioctl call
Dave Airlief453ba02008-11-07 14:05:41 -08002376 *
Dave Airlief453ba02008-11-07 14:05:41 -08002377 * Add a new FB to the specified CRTC, given a user request.
2378 *
2379 * Called by the user via ioctl.
2380 *
2381 * RETURNS:
2382 * Zero on success, errno on failure.
2383 */
2384int drm_mode_addfb(struct drm_device *dev,
2385 void *data, struct drm_file *file_priv)
2386{
Jesse Barnes308e5bc2011-11-14 14:51:28 -08002387 struct drm_mode_fb_cmd *or = data;
2388 struct drm_mode_fb_cmd2 r = {};
2389 struct drm_mode_config *config = &dev->mode_config;
2390 struct drm_framebuffer *fb;
2391 int ret = 0;
2392
2393 /* Use new struct with format internally */
2394 r.fb_id = or->fb_id;
2395 r.width = or->width;
2396 r.height = or->height;
2397 r.pitches[0] = or->pitch;
2398 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
2399 r.handles[0] = or->handle;
2400
2401 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2402 return -EINVAL;
2403
Jesse Barnesacb4b992011-11-07 12:03:23 -08002404 if ((config->min_width > r.width) || (r.width > config->max_width))
Jesse Barnes308e5bc2011-11-14 14:51:28 -08002405 return -EINVAL;
Jesse Barnesacb4b992011-11-07 12:03:23 -08002406
2407 if ((config->min_height > r.height) || (r.height > config->max_height))
Jesse Barnes308e5bc2011-11-14 14:51:28 -08002408 return -EINVAL;
Jesse Barnes308e5bc2011-11-14 14:51:28 -08002409
Jesse Barnes308e5bc2011-11-14 14:51:28 -08002410 fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
2411 if (IS_ERR(fb)) {
Dave Airlie1aa1b112012-05-01 17:38:35 +01002412 DRM_DEBUG_KMS("could not create framebuffer\n");
Daniel Vetter4b096ac2012-12-10 21:19:18 +01002413 return PTR_ERR(fb);
Jesse Barnes308e5bc2011-11-14 14:51:28 -08002414 }
2415
Daniel Vetter4b096ac2012-12-10 21:19:18 +01002416 mutex_lock(&file_priv->fbs_lock);
Jesse Barnes308e5bc2011-11-14 14:51:28 -08002417 or->fb_id = fb->base.id;
2418 list_add(&fb->filp_head, &file_priv->fbs);
2419 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
Daniel Vetter4b096ac2012-12-10 21:19:18 +01002420 mutex_unlock(&file_priv->fbs_lock);
Daniel Vetter4b096ac2012-12-10 21:19:18 +01002421
Jesse Barnes308e5bc2011-11-14 14:51:28 -08002422 return ret;
2423}
2424
Ville Syrjäläcff91b62012-05-24 20:54:00 +03002425static int format_check(const struct drm_mode_fb_cmd2 *r)
Ville Syrjälä935b5972011-12-20 00:06:48 +02002426{
2427 uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
2428
2429 switch (format) {
2430 case DRM_FORMAT_C8:
2431 case DRM_FORMAT_RGB332:
2432 case DRM_FORMAT_BGR233:
2433 case DRM_FORMAT_XRGB4444:
2434 case DRM_FORMAT_XBGR4444:
2435 case DRM_FORMAT_RGBX4444:
2436 case DRM_FORMAT_BGRX4444:
2437 case DRM_FORMAT_ARGB4444:
2438 case DRM_FORMAT_ABGR4444:
2439 case DRM_FORMAT_RGBA4444:
2440 case DRM_FORMAT_BGRA4444:
2441 case DRM_FORMAT_XRGB1555:
2442 case DRM_FORMAT_XBGR1555:
2443 case DRM_FORMAT_RGBX5551:
2444 case DRM_FORMAT_BGRX5551:
2445 case DRM_FORMAT_ARGB1555:
2446 case DRM_FORMAT_ABGR1555:
2447 case DRM_FORMAT_RGBA5551:
2448 case DRM_FORMAT_BGRA5551:
2449 case DRM_FORMAT_RGB565:
2450 case DRM_FORMAT_BGR565:
2451 case DRM_FORMAT_RGB888:
2452 case DRM_FORMAT_BGR888:
2453 case DRM_FORMAT_XRGB8888:
2454 case DRM_FORMAT_XBGR8888:
2455 case DRM_FORMAT_RGBX8888:
2456 case DRM_FORMAT_BGRX8888:
2457 case DRM_FORMAT_ARGB8888:
2458 case DRM_FORMAT_ABGR8888:
2459 case DRM_FORMAT_RGBA8888:
2460 case DRM_FORMAT_BGRA8888:
2461 case DRM_FORMAT_XRGB2101010:
2462 case DRM_FORMAT_XBGR2101010:
2463 case DRM_FORMAT_RGBX1010102:
2464 case DRM_FORMAT_BGRX1010102:
2465 case DRM_FORMAT_ARGB2101010:
2466 case DRM_FORMAT_ABGR2101010:
2467 case DRM_FORMAT_RGBA1010102:
2468 case DRM_FORMAT_BGRA1010102:
2469 case DRM_FORMAT_YUYV:
2470 case DRM_FORMAT_YVYU:
2471 case DRM_FORMAT_UYVY:
2472 case DRM_FORMAT_VYUY:
2473 case DRM_FORMAT_AYUV:
2474 case DRM_FORMAT_NV12:
2475 case DRM_FORMAT_NV21:
2476 case DRM_FORMAT_NV16:
2477 case DRM_FORMAT_NV61:
Laurent Pinchartba623f62012-05-18 23:47:40 +02002478 case DRM_FORMAT_NV24:
2479 case DRM_FORMAT_NV42:
Ville Syrjälä935b5972011-12-20 00:06:48 +02002480 case DRM_FORMAT_YUV410:
2481 case DRM_FORMAT_YVU410:
2482 case DRM_FORMAT_YUV411:
2483 case DRM_FORMAT_YVU411:
2484 case DRM_FORMAT_YUV420:
2485 case DRM_FORMAT_YVU420:
2486 case DRM_FORMAT_YUV422:
2487 case DRM_FORMAT_YVU422:
2488 case DRM_FORMAT_YUV444:
2489 case DRM_FORMAT_YVU444:
2490 return 0;
2491 default:
Ville Syrjälä23c453a2013-10-15 21:06:51 +03002492 DRM_DEBUG_KMS("invalid pixel format %s\n",
2493 drm_get_format_name(r->pixel_format));
Ville Syrjälä935b5972011-12-20 00:06:48 +02002494 return -EINVAL;
2495 }
2496}
2497
Ville Syrjäläcff91b62012-05-24 20:54:00 +03002498static int framebuffer_check(const struct drm_mode_fb_cmd2 *r)
Ville Syrjäläd1b45d52012-04-05 21:35:18 +03002499{
2500 int ret, hsub, vsub, num_planes, i;
2501
2502 ret = format_check(r);
2503 if (ret) {
Ville Syrjälä6ba6d032013-06-10 11:15:10 +03002504 DRM_DEBUG_KMS("bad framebuffer format %s\n",
2505 drm_get_format_name(r->pixel_format));
Ville Syrjäläd1b45d52012-04-05 21:35:18 +03002506 return ret;
2507 }
2508
2509 hsub = drm_format_horz_chroma_subsampling(r->pixel_format);
2510 vsub = drm_format_vert_chroma_subsampling(r->pixel_format);
2511 num_planes = drm_format_num_planes(r->pixel_format);
2512
2513 if (r->width == 0 || r->width % hsub) {
Dave Airlie1aa1b112012-05-01 17:38:35 +01002514 DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height);
Ville Syrjäläd1b45d52012-04-05 21:35:18 +03002515 return -EINVAL;
2516 }
2517
2518 if (r->height == 0 || r->height % vsub) {
Dave Airlie1aa1b112012-05-01 17:38:35 +01002519 DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height);
Ville Syrjäläd1b45d52012-04-05 21:35:18 +03002520 return -EINVAL;
2521 }
2522
2523 for (i = 0; i < num_planes; i++) {
2524 unsigned int width = r->width / (i != 0 ? hsub : 1);
Ville Syrjäläb180b5d2012-10-25 18:05:04 +00002525 unsigned int height = r->height / (i != 0 ? vsub : 1);
2526 unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i);
Ville Syrjäläd1b45d52012-04-05 21:35:18 +03002527
2528 if (!r->handles[i]) {
Dave Airlie1aa1b112012-05-01 17:38:35 +01002529 DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i);
Ville Syrjäläd1b45d52012-04-05 21:35:18 +03002530 return -EINVAL;
2531 }
2532
Ville Syrjäläb180b5d2012-10-25 18:05:04 +00002533 if ((uint64_t) width * cpp > UINT_MAX)
2534 return -ERANGE;
2535
2536 if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX)
2537 return -ERANGE;
2538
2539 if (r->pitches[i] < width * cpp) {
Dave Airlie1aa1b112012-05-01 17:38:35 +01002540 DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
Ville Syrjäläd1b45d52012-04-05 21:35:18 +03002541 return -EINVAL;
2542 }
2543 }
2544
2545 return 0;
2546}
2547
Jesse Barnes308e5bc2011-11-14 14:51:28 -08002548/**
2549 * drm_mode_addfb2 - add an FB to the graphics configuration
Daniel Vetter065a50ed2012-12-02 00:09:18 +01002550 * @dev: drm device for the ioctl
2551 * @data: data pointer for the ioctl
2552 * @file_priv: drm file for the ioctl call
Jesse Barnes308e5bc2011-11-14 14:51:28 -08002553 *
Jesse Barnes308e5bc2011-11-14 14:51:28 -08002554 * Add a new FB to the specified CRTC, given a user request with format.
2555 *
2556 * Called by the user via ioctl.
2557 *
2558 * RETURNS:
2559 * Zero on success, errno on failure.
2560 */
2561int drm_mode_addfb2(struct drm_device *dev,
2562 void *data, struct drm_file *file_priv)
2563{
2564 struct drm_mode_fb_cmd2 *r = data;
Dave Airlief453ba02008-11-07 14:05:41 -08002565 struct drm_mode_config *config = &dev->mode_config;
2566 struct drm_framebuffer *fb;
Laurent Pinchart4a1b0712012-05-17 13:27:21 +02002567 int ret;
Dave Airlief453ba02008-11-07 14:05:41 -08002568
Dave Airliefb3b06c2011-02-08 13:55:21 +10002569 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2570 return -EINVAL;
2571
Ville Syrjäläe3cc3522012-11-08 09:09:42 +00002572 if (r->flags & ~DRM_MODE_FB_INTERLACED) {
2573 DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags);
2574 return -EINVAL;
2575 }
2576
Dave Airlief453ba02008-11-07 14:05:41 -08002577 if ((config->min_width > r->width) || (r->width > config->max_width)) {
Dave Airlie1aa1b112012-05-01 17:38:35 +01002578 DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n",
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002579 r->width, config->min_width, config->max_width);
Dave Airlief453ba02008-11-07 14:05:41 -08002580 return -EINVAL;
2581 }
2582 if ((config->min_height > r->height) || (r->height > config->max_height)) {
Dave Airlie1aa1b112012-05-01 17:38:35 +01002583 DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n",
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002584 r->height, config->min_height, config->max_height);
Dave Airlief453ba02008-11-07 14:05:41 -08002585 return -EINVAL;
2586 }
2587
Ville Syrjäläd1b45d52012-04-05 21:35:18 +03002588 ret = framebuffer_check(r);
2589 if (ret)
Ville Syrjälä935b5972011-12-20 00:06:48 +02002590 return ret;
Ville Syrjälä935b5972011-12-20 00:06:48 +02002591
Dave Airlief453ba02008-11-07 14:05:41 -08002592 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
Chris Wilsoncce13ff2010-08-08 13:36:38 +01002593 if (IS_ERR(fb)) {
Dave Airlie1aa1b112012-05-01 17:38:35 +01002594 DRM_DEBUG_KMS("could not create framebuffer\n");
Daniel Vetter4b096ac2012-12-10 21:19:18 +01002595 return PTR_ERR(fb);
Dave Airlief453ba02008-11-07 14:05:41 -08002596 }
2597
Daniel Vetter4b096ac2012-12-10 21:19:18 +01002598 mutex_lock(&file_priv->fbs_lock);
Jakob Bornecrantze0c84632008-12-19 14:50:50 +10002599 r->fb_id = fb->base.id;
Dave Airlief453ba02008-11-07 14:05:41 -08002600 list_add(&fb->filp_head, &file_priv->fbs);
Jerome Glisse94401062010-07-15 15:43:25 -04002601 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
Daniel Vetter4b096ac2012-12-10 21:19:18 +01002602 mutex_unlock(&file_priv->fbs_lock);
Dave Airlief453ba02008-11-07 14:05:41 -08002603
Daniel Vetter4b096ac2012-12-10 21:19:18 +01002604
Dave Airlief453ba02008-11-07 14:05:41 -08002605 return ret;
2606}
2607
2608/**
2609 * drm_mode_rmfb - remove an FB from the configuration
Daniel Vetter065a50ed2012-12-02 00:09:18 +01002610 * @dev: drm device for the ioctl
2611 * @data: data pointer for the ioctl
2612 * @file_priv: drm file for the ioctl call
Dave Airlief453ba02008-11-07 14:05:41 -08002613 *
Dave Airlief453ba02008-11-07 14:05:41 -08002614 * Remove the FB specified by the user.
2615 *
2616 * Called by the user via ioctl.
2617 *
2618 * RETURNS:
2619 * Zero on success, errno on failure.
2620 */
2621int drm_mode_rmfb(struct drm_device *dev,
2622 void *data, struct drm_file *file_priv)
2623{
Dave Airlief453ba02008-11-07 14:05:41 -08002624 struct drm_framebuffer *fb = NULL;
2625 struct drm_framebuffer *fbl = NULL;
2626 uint32_t *id = data;
Dave Airlief453ba02008-11-07 14:05:41 -08002627 int found = 0;
2628
Dave Airliefb3b06c2011-02-08 13:55:21 +10002629 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2630 return -EINVAL;
2631
Daniel Vetter4b096ac2012-12-10 21:19:18 +01002632 mutex_lock(&file_priv->fbs_lock);
Daniel Vetter2b677e82012-12-10 21:16:05 +01002633 mutex_lock(&dev->mode_config.fb_lock);
2634 fb = __drm_framebuffer_lookup(dev, *id);
2635 if (!fb)
2636 goto fail_lookup;
2637
Dave Airlief453ba02008-11-07 14:05:41 -08002638 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2639 if (fb == fbl)
2640 found = 1;
Daniel Vetter2b677e82012-12-10 21:16:05 +01002641 if (!found)
2642 goto fail_lookup;
2643
2644 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2645 __drm_framebuffer_unregister(dev, fb);
Dave Airlief453ba02008-11-07 14:05:41 -08002646
Daniel Vetter4b096ac2012-12-10 21:19:18 +01002647 list_del_init(&fb->filp_head);
Daniel Vetter2b677e82012-12-10 21:16:05 +01002648 mutex_unlock(&dev->mode_config.fb_lock);
Daniel Vetter4b096ac2012-12-10 21:19:18 +01002649 mutex_unlock(&file_priv->fbs_lock);
Dave Airlief453ba02008-11-07 14:05:41 -08002650
Daniel Vetter4b096ac2012-12-10 21:19:18 +01002651 drm_framebuffer_remove(fb);
Daniel Vetter4b096ac2012-12-10 21:19:18 +01002652
Daniel Vetter2b677e82012-12-10 21:16:05 +01002653 return 0;
2654
2655fail_lookup:
2656 mutex_unlock(&dev->mode_config.fb_lock);
2657 mutex_unlock(&file_priv->fbs_lock);
2658
Ville Syrjälä37c4e702013-10-17 13:35:01 +03002659 return -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08002660}
2661
2662/**
2663 * drm_mode_getfb - get FB info
Daniel Vetter065a50ed2012-12-02 00:09:18 +01002664 * @dev: drm device for the ioctl
2665 * @data: data pointer for the ioctl
2666 * @file_priv: drm file for the ioctl call
Dave Airlief453ba02008-11-07 14:05:41 -08002667 *
Dave Airlief453ba02008-11-07 14:05:41 -08002668 * Lookup the FB given its ID and return info about it.
2669 *
2670 * Called by the user via ioctl.
2671 *
2672 * RETURNS:
2673 * Zero on success, errno on failure.
2674 */
2675int drm_mode_getfb(struct drm_device *dev,
2676 void *data, struct drm_file *file_priv)
2677{
2678 struct drm_mode_fb_cmd *r = data;
Dave Airlief453ba02008-11-07 14:05:41 -08002679 struct drm_framebuffer *fb;
Daniel Vetter58c0dca2012-12-13 23:06:08 +01002680 int ret;
Dave Airlief453ba02008-11-07 14:05:41 -08002681
Dave Airliefb3b06c2011-02-08 13:55:21 +10002682 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2683 return -EINVAL;
2684
Daniel Vetter786b99e2012-12-02 21:53:40 +01002685 fb = drm_framebuffer_lookup(dev, r->fb_id);
Daniel Vetter58c0dca2012-12-13 23:06:08 +01002686 if (!fb)
Ville Syrjälä37c4e702013-10-17 13:35:01 +03002687 return -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08002688
2689 r->height = fb->height;
2690 r->width = fb->width;
2691 r->depth = fb->depth;
2692 r->bpp = fb->bits_per_pixel;
Ville Syrjälä01f2c772011-12-20 00:06:49 +02002693 r->pitch = fb->pitches[0];
David Herrmann101b96f2013-08-26 15:16:49 +02002694 if (fb->funcs->create_handle) {
2695 if (file_priv->is_master || capable(CAP_SYS_ADMIN)) {
2696 ret = fb->funcs->create_handle(fb, file_priv,
2697 &r->handle);
2698 } else {
2699 /* GET_FB() is an unprivileged ioctl so we must not
2700 * return a buffer-handle to non-master processes! For
2701 * backwards-compatibility reasons, we cannot make
2702 * GET_FB() privileged, so just return an invalid handle
2703 * for non-masters. */
2704 r->handle = 0;
2705 ret = 0;
2706 }
2707 } else {
Daniel Vetteraf26ef32012-12-13 23:07:50 +01002708 ret = -ENODEV;
David Herrmann101b96f2013-08-26 15:16:49 +02002709 }
Dave Airlief453ba02008-11-07 14:05:41 -08002710
Daniel Vetter58c0dca2012-12-13 23:06:08 +01002711 drm_framebuffer_unreference(fb);
2712
Dave Airlief453ba02008-11-07 14:05:41 -08002713 return ret;
2714}
2715
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00002716int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
2717 void *data, struct drm_file *file_priv)
2718{
2719 struct drm_clip_rect __user *clips_ptr;
2720 struct drm_clip_rect *clips = NULL;
2721 struct drm_mode_fb_dirty_cmd *r = data;
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00002722 struct drm_framebuffer *fb;
2723 unsigned flags;
2724 int num_clips;
Laurent Pinchart4a1b0712012-05-17 13:27:21 +02002725 int ret;
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00002726
Dave Airliefb3b06c2011-02-08 13:55:21 +10002727 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2728 return -EINVAL;
2729
Daniel Vetter786b99e2012-12-02 21:53:40 +01002730 fb = drm_framebuffer_lookup(dev, r->fb_id);
Daniel Vetter4ccf0972012-12-11 00:38:18 +01002731 if (!fb)
Ville Syrjälä37c4e702013-10-17 13:35:01 +03002732 return -ENOENT;
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00002733
2734 num_clips = r->num_clips;
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02002735 clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00002736
2737 if (!num_clips != !clips_ptr) {
2738 ret = -EINVAL;
2739 goto out_err1;
2740 }
2741
2742 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
2743
2744 /* If userspace annotates copy, clips must come in pairs */
2745 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
2746 ret = -EINVAL;
2747 goto out_err1;
2748 }
2749
2750 if (num_clips && clips_ptr) {
Xi Wanga5cd3352011-11-23 01:12:01 -05002751 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
2752 ret = -EINVAL;
2753 goto out_err1;
2754 }
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00002755 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
2756 if (!clips) {
2757 ret = -ENOMEM;
2758 goto out_err1;
2759 }
2760
2761 ret = copy_from_user(clips, clips_ptr,
2762 num_clips * sizeof(*clips));
Dan Carpentere902a352010-06-04 12:23:21 +02002763 if (ret) {
2764 ret = -EFAULT;
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00002765 goto out_err2;
Dan Carpentere902a352010-06-04 12:23:21 +02002766 }
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00002767 }
2768
2769 if (fb->funcs->dirty) {
Thomas Hellstrom02b00162010-10-05 12:43:02 +02002770 ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
2771 clips, num_clips);
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00002772 } else {
2773 ret = -ENOSYS;
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00002774 }
2775
2776out_err2:
2777 kfree(clips);
2778out_err1:
Daniel Vetter4ccf0972012-12-11 00:38:18 +01002779 drm_framebuffer_unreference(fb);
2780
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00002781 return ret;
2782}
2783
2784
Dave Airlief453ba02008-11-07 14:05:41 -08002785/**
2786 * drm_fb_release - remove and free the FBs on this file
Daniel Vetter065a50ed2012-12-02 00:09:18 +01002787 * @priv: drm file for the ioctl
Dave Airlief453ba02008-11-07 14:05:41 -08002788 *
Dave Airlief453ba02008-11-07 14:05:41 -08002789 * Destroy all the FBs associated with @filp.
2790 *
2791 * Called by the user via ioctl.
2792 *
2793 * RETURNS:
2794 * Zero on success, errno on failure.
2795 */
Kristian Høgsbergea39f832009-02-12 14:37:56 -05002796void drm_fb_release(struct drm_file *priv)
Dave Airlief453ba02008-11-07 14:05:41 -08002797{
Dave Airlief453ba02008-11-07 14:05:41 -08002798 struct drm_device *dev = priv->minor->dev;
2799 struct drm_framebuffer *fb, *tfb;
2800
Daniel Vetter4b096ac2012-12-10 21:19:18 +01002801 mutex_lock(&priv->fbs_lock);
Dave Airlief453ba02008-11-07 14:05:41 -08002802 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
Daniel Vetter2b677e82012-12-10 21:16:05 +01002803
2804 mutex_lock(&dev->mode_config.fb_lock);
2805 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2806 __drm_framebuffer_unregister(dev, fb);
2807 mutex_unlock(&dev->mode_config.fb_lock);
2808
Daniel Vetter4b096ac2012-12-10 21:19:18 +01002809 list_del_init(&fb->filp_head);
Daniel Vetter2b677e82012-12-10 21:16:05 +01002810
2811 /* This will also drop the fpriv->fbs reference. */
Rob Clarkf7eff602012-09-05 21:48:38 +00002812 drm_framebuffer_remove(fb);
Dave Airlief453ba02008-11-07 14:05:41 -08002813 }
Daniel Vetter4b096ac2012-12-10 21:19:18 +01002814 mutex_unlock(&priv->fbs_lock);
Dave Airlief453ba02008-11-07 14:05:41 -08002815}
2816
Dave Airlief453ba02008-11-07 14:05:41 -08002817struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2818 const char *name, int num_values)
2819{
2820 struct drm_property *property = NULL;
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +02002821 int ret;
Dave Airlief453ba02008-11-07 14:05:41 -08002822
2823 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2824 if (!property)
2825 return NULL;
2826
2827 if (num_values) {
2828 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2829 if (!property->values)
2830 goto fail;
2831 }
2832
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +02002833 ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2834 if (ret)
2835 goto fail;
2836
Dave Airlief453ba02008-11-07 14:05:41 -08002837 property->flags = flags;
2838 property->num_values = num_values;
2839 INIT_LIST_HEAD(&property->enum_blob_list);
2840
Vinson Lee471dd2e2011-11-10 11:55:40 -08002841 if (name) {
Dave Airlief453ba02008-11-07 14:05:41 -08002842 strncpy(property->name, name, DRM_PROP_NAME_LEN);
Vinson Lee471dd2e2011-11-10 11:55:40 -08002843 property->name[DRM_PROP_NAME_LEN-1] = '\0';
2844 }
Dave Airlief453ba02008-11-07 14:05:41 -08002845
2846 list_add_tail(&property->head, &dev->mode_config.property_list);
2847 return property;
2848fail:
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +02002849 kfree(property->values);
Dave Airlief453ba02008-11-07 14:05:41 -08002850 kfree(property);
2851 return NULL;
2852}
2853EXPORT_SYMBOL(drm_property_create);
2854
Sascha Hauer4a67d392012-02-06 10:58:17 +01002855struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
2856 const char *name,
2857 const struct drm_prop_enum_list *props,
2858 int num_values)
2859{
2860 struct drm_property *property;
2861 int i, ret;
2862
2863 flags |= DRM_MODE_PROP_ENUM;
2864
2865 property = drm_property_create(dev, flags, name, num_values);
2866 if (!property)
2867 return NULL;
2868
2869 for (i = 0; i < num_values; i++) {
2870 ret = drm_property_add_enum(property, i,
2871 props[i].type,
2872 props[i].name);
2873 if (ret) {
2874 drm_property_destroy(dev, property);
2875 return NULL;
2876 }
2877 }
2878
2879 return property;
2880}
2881EXPORT_SYMBOL(drm_property_create_enum);
2882
Rob Clark49e27542012-05-17 02:23:26 -06002883struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
2884 int flags, const char *name,
2885 const struct drm_prop_enum_list *props,
2886 int num_values)
2887{
2888 struct drm_property *property;
2889 int i, ret;
2890
2891 flags |= DRM_MODE_PROP_BITMASK;
2892
2893 property = drm_property_create(dev, flags, name, num_values);
2894 if (!property)
2895 return NULL;
2896
2897 for (i = 0; i < num_values; i++) {
2898 ret = drm_property_add_enum(property, i,
2899 props[i].type,
2900 props[i].name);
2901 if (ret) {
2902 drm_property_destroy(dev, property);
2903 return NULL;
2904 }
2905 }
2906
2907 return property;
2908}
2909EXPORT_SYMBOL(drm_property_create_bitmask);
2910
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01002911struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
2912 const char *name,
2913 uint64_t min, uint64_t max)
2914{
2915 struct drm_property *property;
2916
2917 flags |= DRM_MODE_PROP_RANGE;
2918
2919 property = drm_property_create(dev, flags, name, 2);
2920 if (!property)
2921 return NULL;
2922
2923 property->values[0] = min;
2924 property->values[1] = max;
2925
2926 return property;
2927}
2928EXPORT_SYMBOL(drm_property_create_range);
2929
Dave Airlief453ba02008-11-07 14:05:41 -08002930int drm_property_add_enum(struct drm_property *property, int index,
2931 uint64_t value, const char *name)
2932{
2933 struct drm_property_enum *prop_enum;
2934
Rob Clark49e27542012-05-17 02:23:26 -06002935 if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)))
2936 return -EINVAL;
2937
2938 /*
2939 * Bitmask enum properties have the additional constraint of values
2940 * from 0 to 63
2941 */
2942 if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63))
Dave Airlief453ba02008-11-07 14:05:41 -08002943 return -EINVAL;
2944
2945 if (!list_empty(&property->enum_blob_list)) {
2946 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2947 if (prop_enum->value == value) {
2948 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2949 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2950 return 0;
2951 }
2952 }
2953 }
2954
2955 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2956 if (!prop_enum)
2957 return -ENOMEM;
2958
2959 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2960 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2961 prop_enum->value = value;
2962
2963 property->values[index] = value;
2964 list_add_tail(&prop_enum->head, &property->enum_blob_list);
2965 return 0;
2966}
2967EXPORT_SYMBOL(drm_property_add_enum);
2968
2969void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2970{
2971 struct drm_property_enum *prop_enum, *pt;
2972
2973 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2974 list_del(&prop_enum->head);
2975 kfree(prop_enum);
2976 }
2977
2978 if (property->num_values)
2979 kfree(property->values);
2980 drm_mode_object_put(dev, &property->base);
2981 list_del(&property->head);
2982 kfree(property);
2983}
2984EXPORT_SYMBOL(drm_property_destroy);
2985
Paulo Zanonic5431882012-05-15 18:09:02 -03002986void drm_object_attach_property(struct drm_mode_object *obj,
2987 struct drm_property *property,
2988 uint64_t init_val)
2989{
Paulo Zanoni7f88a9b2012-05-15 18:09:04 -03002990 int count = obj->properties->count;
Paulo Zanonic5431882012-05-15 18:09:02 -03002991
Paulo Zanoni7f88a9b2012-05-15 18:09:04 -03002992 if (count == DRM_OBJECT_MAX_PROPERTY) {
2993 WARN(1, "Failed to attach object property (type: 0x%x). Please "
2994 "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time "
2995 "you see this message on the same object type.\n",
2996 obj->type);
2997 return;
Paulo Zanonic5431882012-05-15 18:09:02 -03002998 }
2999
Paulo Zanoni7f88a9b2012-05-15 18:09:04 -03003000 obj->properties->ids[count] = property->base.id;
3001 obj->properties->values[count] = init_val;
3002 obj->properties->count++;
Paulo Zanonic5431882012-05-15 18:09:02 -03003003}
3004EXPORT_SYMBOL(drm_object_attach_property);
3005
3006int drm_object_property_set_value(struct drm_mode_object *obj,
3007 struct drm_property *property, uint64_t val)
3008{
3009 int i;
3010
Paulo Zanoni7f88a9b2012-05-15 18:09:04 -03003011 for (i = 0; i < obj->properties->count; i++) {
Paulo Zanonic5431882012-05-15 18:09:02 -03003012 if (obj->properties->ids[i] == property->base.id) {
3013 obj->properties->values[i] = val;
3014 return 0;
3015 }
3016 }
3017
3018 return -EINVAL;
3019}
3020EXPORT_SYMBOL(drm_object_property_set_value);
3021
3022int drm_object_property_get_value(struct drm_mode_object *obj,
3023 struct drm_property *property, uint64_t *val)
3024{
3025 int i;
3026
Paulo Zanoni7f88a9b2012-05-15 18:09:04 -03003027 for (i = 0; i < obj->properties->count; i++) {
Paulo Zanonic5431882012-05-15 18:09:02 -03003028 if (obj->properties->ids[i] == property->base.id) {
3029 *val = obj->properties->values[i];
3030 return 0;
3031 }
3032 }
3033
3034 return -EINVAL;
3035}
3036EXPORT_SYMBOL(drm_object_property_get_value);
3037
Dave Airlief453ba02008-11-07 14:05:41 -08003038int drm_mode_getproperty_ioctl(struct drm_device *dev,
3039 void *data, struct drm_file *file_priv)
3040{
3041 struct drm_mode_object *obj;
3042 struct drm_mode_get_property *out_resp = data;
3043 struct drm_property *property;
3044 int enum_count = 0;
3045 int blob_count = 0;
3046 int value_count = 0;
3047 int ret = 0, i;
3048 int copied;
3049 struct drm_property_enum *prop_enum;
3050 struct drm_mode_property_enum __user *enum_ptr;
3051 struct drm_property_blob *prop_blob;
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02003052 uint32_t __user *blob_id_ptr;
Dave Airlief453ba02008-11-07 14:05:41 -08003053 uint64_t __user *values_ptr;
3054 uint32_t __user *blob_length_ptr;
3055
Dave Airliefb3b06c2011-02-08 13:55:21 +10003056 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3057 return -EINVAL;
3058
Daniel Vetter84849902012-12-02 00:28:11 +01003059 drm_modeset_lock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08003060 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
3061 if (!obj) {
Ville Syrjäläf27657f2013-10-17 13:35:00 +03003062 ret = -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08003063 goto done;
3064 }
3065 property = obj_to_property(obj);
3066
Rob Clark49e27542012-05-17 02:23:26 -06003067 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
Dave Airlief453ba02008-11-07 14:05:41 -08003068 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
3069 enum_count++;
3070 } else if (property->flags & DRM_MODE_PROP_BLOB) {
3071 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
3072 blob_count++;
3073 }
3074
3075 value_count = property->num_values;
3076
3077 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
3078 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
3079 out_resp->flags = property->flags;
3080
3081 if ((out_resp->count_values >= value_count) && value_count) {
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02003082 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
Dave Airlief453ba02008-11-07 14:05:41 -08003083 for (i = 0; i < value_count; i++) {
3084 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
3085 ret = -EFAULT;
3086 goto done;
3087 }
3088 }
3089 }
3090 out_resp->count_values = value_count;
3091
Rob Clark49e27542012-05-17 02:23:26 -06003092 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
Dave Airlief453ba02008-11-07 14:05:41 -08003093 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
3094 copied = 0;
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02003095 enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
Dave Airlief453ba02008-11-07 14:05:41 -08003096 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
3097
3098 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
3099 ret = -EFAULT;
3100 goto done;
3101 }
3102
3103 if (copy_to_user(&enum_ptr[copied].name,
3104 &prop_enum->name, DRM_PROP_NAME_LEN)) {
3105 ret = -EFAULT;
3106 goto done;
3107 }
3108 copied++;
3109 }
3110 }
3111 out_resp->count_enum_blobs = enum_count;
3112 }
3113
3114 if (property->flags & DRM_MODE_PROP_BLOB) {
3115 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
3116 copied = 0;
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02003117 blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr;
3118 blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr;
Dave Airlief453ba02008-11-07 14:05:41 -08003119
3120 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
3121 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
3122 ret = -EFAULT;
3123 goto done;
3124 }
3125
3126 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
3127 ret = -EFAULT;
3128 goto done;
3129 }
3130
3131 copied++;
3132 }
3133 }
3134 out_resp->count_enum_blobs = blob_count;
3135 }
3136done:
Daniel Vetter84849902012-12-02 00:28:11 +01003137 drm_modeset_unlock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08003138 return ret;
3139}
3140
3141static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
3142 void *data)
3143{
3144 struct drm_property_blob *blob;
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +02003145 int ret;
Dave Airlief453ba02008-11-07 14:05:41 -08003146
3147 if (!length || !data)
3148 return NULL;
3149
3150 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
3151 if (!blob)
3152 return NULL;
3153
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +02003154 ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
3155 if (ret) {
3156 kfree(blob);
3157 return NULL;
3158 }
3159
Dave Airlief453ba02008-11-07 14:05:41 -08003160 blob->length = length;
3161
3162 memcpy(blob->data, data, length);
3163
Dave Airlief453ba02008-11-07 14:05:41 -08003164 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
3165 return blob;
3166}
3167
3168static void drm_property_destroy_blob(struct drm_device *dev,
3169 struct drm_property_blob *blob)
3170{
3171 drm_mode_object_put(dev, &blob->base);
3172 list_del(&blob->head);
3173 kfree(blob);
3174}
3175
3176int drm_mode_getblob_ioctl(struct drm_device *dev,
3177 void *data, struct drm_file *file_priv)
3178{
3179 struct drm_mode_object *obj;
3180 struct drm_mode_get_blob *out_resp = data;
3181 struct drm_property_blob *blob;
3182 int ret = 0;
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02003183 void __user *blob_ptr;
Dave Airlief453ba02008-11-07 14:05:41 -08003184
Dave Airliefb3b06c2011-02-08 13:55:21 +10003185 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3186 return -EINVAL;
3187
Daniel Vetter84849902012-12-02 00:28:11 +01003188 drm_modeset_lock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08003189 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
3190 if (!obj) {
Ville Syrjäläf27657f2013-10-17 13:35:00 +03003191 ret = -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08003192 goto done;
3193 }
3194 blob = obj_to_blob(obj);
3195
3196 if (out_resp->length == blob->length) {
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02003197 blob_ptr = (void __user *)(unsigned long)out_resp->data;
Dave Airlief453ba02008-11-07 14:05:41 -08003198 if (copy_to_user(blob_ptr, blob->data, blob->length)){
3199 ret = -EFAULT;
3200 goto done;
3201 }
3202 }
3203 out_resp->length = blob->length;
3204
3205done:
Daniel Vetter84849902012-12-02 00:28:11 +01003206 drm_modeset_unlock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08003207 return ret;
3208}
3209
3210int drm_mode_connector_update_edid_property(struct drm_connector *connector,
3211 struct edid *edid)
3212{
3213 struct drm_device *dev = connector->dev;
Laurent Pinchart4a1b0712012-05-17 13:27:21 +02003214 int ret, size;
Dave Airlief453ba02008-11-07 14:05:41 -08003215
3216 if (connector->edid_blob_ptr)
3217 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
3218
3219 /* Delete edid, when there is none. */
3220 if (!edid) {
3221 connector->edid_blob_ptr = NULL;
Rob Clark58495562012-10-11 20:50:56 -05003222 ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0);
Dave Airlief453ba02008-11-07 14:05:41 -08003223 return ret;
3224 }
3225
Adam Jackson7466f4c2010-03-29 21:43:23 +00003226 size = EDID_LENGTH * (1 + edid->extensions);
3227 connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
3228 size, edid);
Sachin Kamate655d122012-11-19 09:44:57 +00003229 if (!connector->edid_blob_ptr)
3230 return -EINVAL;
Dave Airlief453ba02008-11-07 14:05:41 -08003231
Rob Clark58495562012-10-11 20:50:56 -05003232 ret = drm_object_property_set_value(&connector->base,
Dave Airlief453ba02008-11-07 14:05:41 -08003233 dev->mode_config.edid_property,
3234 connector->edid_blob_ptr->base.id);
3235
3236 return ret;
3237}
3238EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
3239
Paulo Zanoni26a34812012-05-15 18:08:59 -03003240static bool drm_property_change_is_valid(struct drm_property *property,
Ville Syrjälä592c20e2012-05-24 20:53:58 +03003241 uint64_t value)
Paulo Zanoni26a34812012-05-15 18:08:59 -03003242{
3243 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
3244 return false;
3245 if (property->flags & DRM_MODE_PROP_RANGE) {
3246 if (value < property->values[0] || value > property->values[1])
3247 return false;
3248 return true;
Rob Clark49e27542012-05-17 02:23:26 -06003249 } else if (property->flags & DRM_MODE_PROP_BITMASK) {
3250 int i;
Ville Syrjälä592c20e2012-05-24 20:53:58 +03003251 uint64_t valid_mask = 0;
Rob Clark49e27542012-05-17 02:23:26 -06003252 for (i = 0; i < property->num_values; i++)
3253 valid_mask |= (1ULL << property->values[i]);
3254 return !(value & ~valid_mask);
Ville Syrjäläc4a56752012-10-25 18:05:06 +00003255 } else if (property->flags & DRM_MODE_PROP_BLOB) {
3256 /* Only the driver knows */
3257 return true;
Paulo Zanoni26a34812012-05-15 18:08:59 -03003258 } else {
3259 int i;
3260 for (i = 0; i < property->num_values; i++)
3261 if (property->values[i] == value)
3262 return true;
3263 return false;
3264 }
3265}
3266
Dave Airlief453ba02008-11-07 14:05:41 -08003267int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
3268 void *data, struct drm_file *file_priv)
3269{
Paulo Zanoni0057d8d2012-05-15 18:09:03 -03003270 struct drm_mode_connector_set_property *conn_set_prop = data;
3271 struct drm_mode_obj_set_property obj_set_prop = {
3272 .value = conn_set_prop->value,
3273 .prop_id = conn_set_prop->prop_id,
3274 .obj_id = conn_set_prop->connector_id,
3275 .obj_type = DRM_MODE_OBJECT_CONNECTOR
3276 };
Dave Airlief453ba02008-11-07 14:05:41 -08003277
Paulo Zanoni0057d8d2012-05-15 18:09:03 -03003278 /* It does all the locking and checking we need */
3279 return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv);
Dave Airlief453ba02008-11-07 14:05:41 -08003280}
3281
Paulo Zanonic5431882012-05-15 18:09:02 -03003282static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj,
3283 struct drm_property *property,
3284 uint64_t value)
3285{
3286 int ret = -EINVAL;
3287 struct drm_connector *connector = obj_to_connector(obj);
3288
3289 /* Do DPMS ourselves */
3290 if (property == connector->dev->mode_config.dpms_property) {
3291 if (connector->funcs->dpms)
3292 (*connector->funcs->dpms)(connector, (int)value);
3293 ret = 0;
3294 } else if (connector->funcs->set_property)
3295 ret = connector->funcs->set_property(connector, property, value);
3296
3297 /* store the property value if successful */
3298 if (!ret)
Rob Clark58495562012-10-11 20:50:56 -05003299 drm_object_property_set_value(&connector->base, property, value);
Paulo Zanonic5431882012-05-15 18:09:02 -03003300 return ret;
3301}
3302
Paulo Zanonibffd9de02012-05-15 18:09:05 -03003303static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
3304 struct drm_property *property,
3305 uint64_t value)
3306{
3307 int ret = -EINVAL;
3308 struct drm_crtc *crtc = obj_to_crtc(obj);
3309
3310 if (crtc->funcs->set_property)
3311 ret = crtc->funcs->set_property(crtc, property, value);
3312 if (!ret)
3313 drm_object_property_set_value(obj, property, value);
3314
3315 return ret;
3316}
3317
Rob Clark4d939142012-05-17 02:23:27 -06003318static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj,
3319 struct drm_property *property,
3320 uint64_t value)
3321{
3322 int ret = -EINVAL;
3323 struct drm_plane *plane = obj_to_plane(obj);
3324
3325 if (plane->funcs->set_property)
3326 ret = plane->funcs->set_property(plane, property, value);
3327 if (!ret)
3328 drm_object_property_set_value(obj, property, value);
3329
3330 return ret;
3331}
3332
Paulo Zanonic5431882012-05-15 18:09:02 -03003333int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
3334 struct drm_file *file_priv)
3335{
3336 struct drm_mode_obj_get_properties *arg = data;
3337 struct drm_mode_object *obj;
3338 int ret = 0;
3339 int i;
3340 int copied = 0;
3341 int props_count = 0;
3342 uint32_t __user *props_ptr;
3343 uint64_t __user *prop_values_ptr;
3344
3345 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3346 return -EINVAL;
3347
Daniel Vetter84849902012-12-02 00:28:11 +01003348 drm_modeset_lock_all(dev);
Paulo Zanonic5431882012-05-15 18:09:02 -03003349
3350 obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3351 if (!obj) {
Ville Syrjäläf27657f2013-10-17 13:35:00 +03003352 ret = -ENOENT;
Paulo Zanonic5431882012-05-15 18:09:02 -03003353 goto out;
3354 }
3355 if (!obj->properties) {
3356 ret = -EINVAL;
3357 goto out;
3358 }
3359
Paulo Zanoni7f88a9b2012-05-15 18:09:04 -03003360 props_count = obj->properties->count;
Paulo Zanonic5431882012-05-15 18:09:02 -03003361
3362 /* This ioctl is called twice, once to determine how much space is
3363 * needed, and the 2nd time to fill it. */
3364 if ((arg->count_props >= props_count) && props_count) {
3365 copied = 0;
3366 props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr);
3367 prop_values_ptr = (uint64_t __user *)(unsigned long)
3368 (arg->prop_values_ptr);
3369 for (i = 0; i < props_count; i++) {
3370 if (put_user(obj->properties->ids[i],
3371 props_ptr + copied)) {
3372 ret = -EFAULT;
3373 goto out;
3374 }
3375 if (put_user(obj->properties->values[i],
3376 prop_values_ptr + copied)) {
3377 ret = -EFAULT;
3378 goto out;
3379 }
3380 copied++;
3381 }
3382 }
3383 arg->count_props = props_count;
3384out:
Daniel Vetter84849902012-12-02 00:28:11 +01003385 drm_modeset_unlock_all(dev);
Paulo Zanonic5431882012-05-15 18:09:02 -03003386 return ret;
3387}
3388
3389int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
3390 struct drm_file *file_priv)
3391{
3392 struct drm_mode_obj_set_property *arg = data;
3393 struct drm_mode_object *arg_obj;
3394 struct drm_mode_object *prop_obj;
3395 struct drm_property *property;
3396 int ret = -EINVAL;
3397 int i;
3398
3399 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3400 return -EINVAL;
3401
Daniel Vetter84849902012-12-02 00:28:11 +01003402 drm_modeset_lock_all(dev);
Paulo Zanonic5431882012-05-15 18:09:02 -03003403
3404 arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
Ville Syrjäläf27657f2013-10-17 13:35:00 +03003405 if (!arg_obj) {
3406 ret = -ENOENT;
Paulo Zanonic5431882012-05-15 18:09:02 -03003407 goto out;
Ville Syrjäläf27657f2013-10-17 13:35:00 +03003408 }
Paulo Zanonic5431882012-05-15 18:09:02 -03003409 if (!arg_obj->properties)
3410 goto out;
3411
Paulo Zanoni7f88a9b2012-05-15 18:09:04 -03003412 for (i = 0; i < arg_obj->properties->count; i++)
Paulo Zanonic5431882012-05-15 18:09:02 -03003413 if (arg_obj->properties->ids[i] == arg->prop_id)
3414 break;
3415
Paulo Zanoni7f88a9b2012-05-15 18:09:04 -03003416 if (i == arg_obj->properties->count)
Paulo Zanonic5431882012-05-15 18:09:02 -03003417 goto out;
3418
3419 prop_obj = drm_mode_object_find(dev, arg->prop_id,
3420 DRM_MODE_OBJECT_PROPERTY);
Ville Syrjäläf27657f2013-10-17 13:35:00 +03003421 if (!prop_obj) {
3422 ret = -ENOENT;
Paulo Zanonic5431882012-05-15 18:09:02 -03003423 goto out;
Ville Syrjäläf27657f2013-10-17 13:35:00 +03003424 }
Paulo Zanonic5431882012-05-15 18:09:02 -03003425 property = obj_to_property(prop_obj);
3426
3427 if (!drm_property_change_is_valid(property, arg->value))
3428 goto out;
3429
3430 switch (arg_obj->type) {
3431 case DRM_MODE_OBJECT_CONNECTOR:
3432 ret = drm_mode_connector_set_obj_prop(arg_obj, property,
3433 arg->value);
3434 break;
Paulo Zanonibffd9de02012-05-15 18:09:05 -03003435 case DRM_MODE_OBJECT_CRTC:
3436 ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value);
3437 break;
Rob Clark4d939142012-05-17 02:23:27 -06003438 case DRM_MODE_OBJECT_PLANE:
3439 ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value);
3440 break;
Paulo Zanonic5431882012-05-15 18:09:02 -03003441 }
3442
3443out:
Daniel Vetter84849902012-12-02 00:28:11 +01003444 drm_modeset_unlock_all(dev);
Paulo Zanonic5431882012-05-15 18:09:02 -03003445 return ret;
3446}
3447
Dave Airlief453ba02008-11-07 14:05:41 -08003448int drm_mode_connector_attach_encoder(struct drm_connector *connector,
3449 struct drm_encoder *encoder)
3450{
3451 int i;
3452
3453 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3454 if (connector->encoder_ids[i] == 0) {
3455 connector->encoder_ids[i] = encoder->base.id;
3456 return 0;
3457 }
3458 }
3459 return -ENOMEM;
3460}
3461EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
3462
3463void drm_mode_connector_detach_encoder(struct drm_connector *connector,
3464 struct drm_encoder *encoder)
3465{
3466 int i;
3467 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3468 if (connector->encoder_ids[i] == encoder->base.id) {
3469 connector->encoder_ids[i] = 0;
3470 if (connector->encoder == encoder)
3471 connector->encoder = NULL;
3472 break;
3473 }
3474 }
3475}
3476EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
3477
Sascha Hauer4cae5b82012-02-01 11:38:23 +01003478int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
Dave Airlief453ba02008-11-07 14:05:41 -08003479 int gamma_size)
3480{
3481 crtc->gamma_size = gamma_size;
3482
3483 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
3484 if (!crtc->gamma_store) {
3485 crtc->gamma_size = 0;
Sascha Hauer4cae5b82012-02-01 11:38:23 +01003486 return -ENOMEM;
Dave Airlief453ba02008-11-07 14:05:41 -08003487 }
3488
Sascha Hauer4cae5b82012-02-01 11:38:23 +01003489 return 0;
Dave Airlief453ba02008-11-07 14:05:41 -08003490}
3491EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
3492
3493int drm_mode_gamma_set_ioctl(struct drm_device *dev,
3494 void *data, struct drm_file *file_priv)
3495{
3496 struct drm_mode_crtc_lut *crtc_lut = data;
3497 struct drm_mode_object *obj;
3498 struct drm_crtc *crtc;
3499 void *r_base, *g_base, *b_base;
3500 int size;
3501 int ret = 0;
3502
Dave Airliefb3b06c2011-02-08 13:55:21 +10003503 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3504 return -EINVAL;
3505
Daniel Vetter84849902012-12-02 00:28:11 +01003506 drm_modeset_lock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08003507 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3508 if (!obj) {
Ville Syrjäläf27657f2013-10-17 13:35:00 +03003509 ret = -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08003510 goto out;
3511 }
3512 crtc = obj_to_crtc(obj);
3513
Laurent Pinchartebe0f242012-05-17 13:27:24 +02003514 if (crtc->funcs->gamma_set == NULL) {
3515 ret = -ENOSYS;
3516 goto out;
3517 }
3518
Dave Airlief453ba02008-11-07 14:05:41 -08003519 /* memcpy into gamma store */
3520 if (crtc_lut->gamma_size != crtc->gamma_size) {
3521 ret = -EINVAL;
3522 goto out;
3523 }
3524
3525 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3526 r_base = crtc->gamma_store;
3527 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
3528 ret = -EFAULT;
3529 goto out;
3530 }
3531
3532 g_base = r_base + size;
3533 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
3534 ret = -EFAULT;
3535 goto out;
3536 }
3537
3538 b_base = g_base + size;
3539 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
3540 ret = -EFAULT;
3541 goto out;
3542 }
3543
James Simmons72034252010-08-03 01:33:19 +01003544 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
Dave Airlief453ba02008-11-07 14:05:41 -08003545
3546out:
Daniel Vetter84849902012-12-02 00:28:11 +01003547 drm_modeset_unlock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08003548 return ret;
3549
3550}
3551
3552int drm_mode_gamma_get_ioctl(struct drm_device *dev,
3553 void *data, struct drm_file *file_priv)
3554{
3555 struct drm_mode_crtc_lut *crtc_lut = data;
3556 struct drm_mode_object *obj;
3557 struct drm_crtc *crtc;
3558 void *r_base, *g_base, *b_base;
3559 int size;
3560 int ret = 0;
3561
Dave Airliefb3b06c2011-02-08 13:55:21 +10003562 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3563 return -EINVAL;
3564
Daniel Vetter84849902012-12-02 00:28:11 +01003565 drm_modeset_lock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08003566 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3567 if (!obj) {
Ville Syrjäläf27657f2013-10-17 13:35:00 +03003568 ret = -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08003569 goto out;
3570 }
3571 crtc = obj_to_crtc(obj);
3572
3573 /* memcpy into gamma store */
3574 if (crtc_lut->gamma_size != crtc->gamma_size) {
3575 ret = -EINVAL;
3576 goto out;
3577 }
3578
3579 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3580 r_base = crtc->gamma_store;
3581 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
3582 ret = -EFAULT;
3583 goto out;
3584 }
3585
3586 g_base = r_base + size;
3587 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
3588 ret = -EFAULT;
3589 goto out;
3590 }
3591
3592 b_base = g_base + size;
3593 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
3594 ret = -EFAULT;
3595 goto out;
3596 }
3597out:
Daniel Vetter84849902012-12-02 00:28:11 +01003598 drm_modeset_unlock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08003599 return ret;
3600}
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05003601
3602int drm_mode_page_flip_ioctl(struct drm_device *dev,
3603 void *data, struct drm_file *file_priv)
3604{
3605 struct drm_mode_crtc_page_flip *page_flip = data;
3606 struct drm_mode_object *obj;
3607 struct drm_crtc *crtc;
Daniel Vetterb0d12322012-12-11 01:07:12 +01003608 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05003609 struct drm_pending_vblank_event *e = NULL;
3610 unsigned long flags;
3611 int ret = -EINVAL;
3612
3613 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
3614 page_flip->reserved != 0)
3615 return -EINVAL;
3616
Keith Packard62f21042013-07-22 18:50:00 -07003617 if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip)
3618 return -EINVAL;
3619
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05003620 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
3621 if (!obj)
Ville Syrjäläf27657f2013-10-17 13:35:00 +03003622 return -ENOENT;
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05003623 crtc = obj_to_crtc(obj);
3624
Daniel Vetterb4d5e7d2012-12-11 16:59:31 +01003625 mutex_lock(&crtc->mutex);
Chris Wilson90c1efd2010-07-17 20:23:26 +01003626 if (crtc->fb == NULL) {
3627 /* The framebuffer is currently unbound, presumably
3628 * due to a hotplug event, that userspace has not
3629 * yet discovered.
3630 */
3631 ret = -EBUSY;
3632 goto out;
3633 }
3634
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05003635 if (crtc->funcs->page_flip == NULL)
3636 goto out;
3637
Daniel Vetter786b99e2012-12-02 21:53:40 +01003638 fb = drm_framebuffer_lookup(dev, page_flip->fb_id);
Ville Syrjälä37c4e702013-10-17 13:35:01 +03003639 if (!fb) {
3640 ret = -ENOENT;
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05003641 goto out;
Ville Syrjälä37c4e702013-10-17 13:35:01 +03003642 }
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05003643
Damien Lespiauc11e9282013-09-25 16:45:30 +01003644 ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb);
3645 if (ret)
Ville Syrjälä5f61bb42012-03-13 12:35:45 +02003646 goto out;
Ville Syrjälä5f61bb42012-03-13 12:35:45 +02003647
Laurent Pinchart909d9cd2013-04-22 01:38:46 +02003648 if (crtc->fb->pixel_format != fb->pixel_format) {
3649 DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n");
3650 ret = -EINVAL;
3651 goto out;
3652 }
3653
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05003654 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3655 ret = -ENOMEM;
3656 spin_lock_irqsave(&dev->event_lock, flags);
3657 if (file_priv->event_space < sizeof e->event) {
3658 spin_unlock_irqrestore(&dev->event_lock, flags);
3659 goto out;
3660 }
3661 file_priv->event_space -= sizeof e->event;
3662 spin_unlock_irqrestore(&dev->event_lock, flags);
3663
3664 e = kzalloc(sizeof *e, GFP_KERNEL);
3665 if (e == NULL) {
3666 spin_lock_irqsave(&dev->event_lock, flags);
3667 file_priv->event_space += sizeof e->event;
3668 spin_unlock_irqrestore(&dev->event_lock, flags);
3669 goto out;
3670 }
3671
Jesse Barnes7bd4d7b2009-11-19 10:50:22 -08003672 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05003673 e->event.base.length = sizeof e->event;
3674 e->event.user_data = page_flip->user_data;
3675 e->base.event = &e->event.base;
3676 e->base.file_priv = file_priv;
3677 e->base.destroy =
3678 (void (*) (struct drm_pending_event *)) kfree;
3679 }
3680
Daniel Vetterb0d12322012-12-11 01:07:12 +01003681 old_fb = crtc->fb;
Keith Packarded8d1972013-07-22 18:49:58 -07003682 ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags);
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05003683 if (ret) {
Joonyoung Shimaef6a7e2012-04-18 13:47:02 +09003684 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3685 spin_lock_irqsave(&dev->event_lock, flags);
3686 file_priv->event_space += sizeof e->event;
3687 spin_unlock_irqrestore(&dev->event_lock, flags);
3688 kfree(e);
3689 }
Daniel Vetterb0d12322012-12-11 01:07:12 +01003690 /* Keep the old fb, don't unref it. */
3691 old_fb = NULL;
3692 } else {
Thierry Reding8cf1e982013-02-13 16:08:33 +01003693 /*
3694 * Warn if the driver hasn't properly updated the crtc->fb
3695 * field to reflect that the new framebuffer is now used.
3696 * Failing to do so will screw with the reference counting
3697 * on framebuffers.
3698 */
3699 WARN_ON(crtc->fb != fb);
Daniel Vetterb0d12322012-12-11 01:07:12 +01003700 /* Unref only the old framebuffer. */
3701 fb = NULL;
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05003702 }
3703
3704out:
Daniel Vetterb0d12322012-12-11 01:07:12 +01003705 if (fb)
3706 drm_framebuffer_unreference(fb);
3707 if (old_fb)
3708 drm_framebuffer_unreference(old_fb);
Daniel Vetterb4d5e7d2012-12-11 16:59:31 +01003709 mutex_unlock(&crtc->mutex);
3710
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05003711 return ret;
3712}
Chris Wilsoneb033552011-01-24 15:11:08 +00003713
3714void drm_mode_config_reset(struct drm_device *dev)
3715{
3716 struct drm_crtc *crtc;
3717 struct drm_encoder *encoder;
3718 struct drm_connector *connector;
3719
3720 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
3721 if (crtc->funcs->reset)
3722 crtc->funcs->reset(crtc);
3723
3724 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
3725 if (encoder->funcs->reset)
3726 encoder->funcs->reset(encoder);
3727
Daniel Vetter5e2cb2f2012-10-23 18:23:35 +00003728 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
3729 connector->status = connector_status_unknown;
3730
Chris Wilsoneb033552011-01-24 15:11:08 +00003731 if (connector->funcs->reset)
3732 connector->funcs->reset(connector);
Daniel Vetter5e2cb2f2012-10-23 18:23:35 +00003733 }
Chris Wilsoneb033552011-01-24 15:11:08 +00003734}
3735EXPORT_SYMBOL(drm_mode_config_reset);
Dave Airlieff72145b2011-02-07 12:16:14 +10003736
3737int drm_mode_create_dumb_ioctl(struct drm_device *dev,
3738 void *data, struct drm_file *file_priv)
3739{
3740 struct drm_mode_create_dumb *args = data;
3741
3742 if (!dev->driver->dumb_create)
3743 return -ENOSYS;
3744 return dev->driver->dumb_create(file_priv, dev, args);
3745}
3746
3747int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
3748 void *data, struct drm_file *file_priv)
3749{
3750 struct drm_mode_map_dumb *args = data;
3751
3752 /* call driver ioctl to get mmap offset */
3753 if (!dev->driver->dumb_map_offset)
3754 return -ENOSYS;
3755
3756 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
3757}
3758
3759int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
3760 void *data, struct drm_file *file_priv)
3761{
3762 struct drm_mode_destroy_dumb *args = data;
3763
3764 if (!dev->driver->dumb_destroy)
3765 return -ENOSYS;
3766
3767 return dev->driver->dumb_destroy(file_priv, dev, args->handle);
3768}
Dave Airlie248dbc22011-11-29 20:02:54 +00003769
3770/*
3771 * Just need to support RGB formats here for compat with code that doesn't
3772 * use pixel formats directly yet.
3773 */
3774void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
3775 int *bpp)
3776{
3777 switch (format) {
Ville Syrjäläc51a6bc2013-01-31 19:43:37 +02003778 case DRM_FORMAT_C8:
Ville Syrjälä04b39242011-11-17 18:05:13 +02003779 case DRM_FORMAT_RGB332:
3780 case DRM_FORMAT_BGR233:
Dave Airlie248dbc22011-11-29 20:02:54 +00003781 *depth = 8;
3782 *bpp = 8;
3783 break;
Ville Syrjälä04b39242011-11-17 18:05:13 +02003784 case DRM_FORMAT_XRGB1555:
3785 case DRM_FORMAT_XBGR1555:
3786 case DRM_FORMAT_RGBX5551:
3787 case DRM_FORMAT_BGRX5551:
3788 case DRM_FORMAT_ARGB1555:
3789 case DRM_FORMAT_ABGR1555:
3790 case DRM_FORMAT_RGBA5551:
3791 case DRM_FORMAT_BGRA5551:
Dave Airlie248dbc22011-11-29 20:02:54 +00003792 *depth = 15;
3793 *bpp = 16;
3794 break;
Ville Syrjälä04b39242011-11-17 18:05:13 +02003795 case DRM_FORMAT_RGB565:
3796 case DRM_FORMAT_BGR565:
Dave Airlie248dbc22011-11-29 20:02:54 +00003797 *depth = 16;
3798 *bpp = 16;
3799 break;
Ville Syrjälä04b39242011-11-17 18:05:13 +02003800 case DRM_FORMAT_RGB888:
3801 case DRM_FORMAT_BGR888:
3802 *depth = 24;
3803 *bpp = 24;
3804 break;
3805 case DRM_FORMAT_XRGB8888:
3806 case DRM_FORMAT_XBGR8888:
3807 case DRM_FORMAT_RGBX8888:
3808 case DRM_FORMAT_BGRX8888:
Dave Airlie248dbc22011-11-29 20:02:54 +00003809 *depth = 24;
3810 *bpp = 32;
3811 break;
Ville Syrjälä04b39242011-11-17 18:05:13 +02003812 case DRM_FORMAT_XRGB2101010:
3813 case DRM_FORMAT_XBGR2101010:
3814 case DRM_FORMAT_RGBX1010102:
3815 case DRM_FORMAT_BGRX1010102:
3816 case DRM_FORMAT_ARGB2101010:
3817 case DRM_FORMAT_ABGR2101010:
3818 case DRM_FORMAT_RGBA1010102:
3819 case DRM_FORMAT_BGRA1010102:
Dave Airlie248dbc22011-11-29 20:02:54 +00003820 *depth = 30;
3821 *bpp = 32;
3822 break;
Ville Syrjälä04b39242011-11-17 18:05:13 +02003823 case DRM_FORMAT_ARGB8888:
3824 case DRM_FORMAT_ABGR8888:
3825 case DRM_FORMAT_RGBA8888:
3826 case DRM_FORMAT_BGRA8888:
Dave Airlie248dbc22011-11-29 20:02:54 +00003827 *depth = 32;
3828 *bpp = 32;
3829 break;
3830 default:
Ville Syrjälä23c453a2013-10-15 21:06:51 +03003831 DRM_DEBUG_KMS("unsupported pixel format %s\n",
3832 drm_get_format_name(format));
Dave Airlie248dbc22011-11-29 20:02:54 +00003833 *depth = 0;
3834 *bpp = 0;
3835 break;
3836 }
3837}
3838EXPORT_SYMBOL(drm_fb_get_bpp_depth);
Ville Syrjälä141670e2012-04-05 21:35:15 +03003839
3840/**
3841 * drm_format_num_planes - get the number of planes for format
3842 * @format: pixel format (DRM_FORMAT_*)
3843 *
3844 * RETURNS:
3845 * The number of planes used by the specified pixel format.
3846 */
3847int drm_format_num_planes(uint32_t format)
3848{
3849 switch (format) {
3850 case DRM_FORMAT_YUV410:
3851 case DRM_FORMAT_YVU410:
3852 case DRM_FORMAT_YUV411:
3853 case DRM_FORMAT_YVU411:
3854 case DRM_FORMAT_YUV420:
3855 case DRM_FORMAT_YVU420:
3856 case DRM_FORMAT_YUV422:
3857 case DRM_FORMAT_YVU422:
3858 case DRM_FORMAT_YUV444:
3859 case DRM_FORMAT_YVU444:
3860 return 3;
3861 case DRM_FORMAT_NV12:
3862 case DRM_FORMAT_NV21:
3863 case DRM_FORMAT_NV16:
3864 case DRM_FORMAT_NV61:
Laurent Pinchartba623f62012-05-18 23:47:40 +02003865 case DRM_FORMAT_NV24:
3866 case DRM_FORMAT_NV42:
Ville Syrjälä141670e2012-04-05 21:35:15 +03003867 return 2;
3868 default:
3869 return 1;
3870 }
3871}
3872EXPORT_SYMBOL(drm_format_num_planes);
Ville Syrjälä5a86bd52012-04-05 21:35:16 +03003873
3874/**
3875 * drm_format_plane_cpp - determine the bytes per pixel value
3876 * @format: pixel format (DRM_FORMAT_*)
3877 * @plane: plane index
3878 *
3879 * RETURNS:
3880 * The bytes per pixel value for the specified plane.
3881 */
3882int drm_format_plane_cpp(uint32_t format, int plane)
3883{
3884 unsigned int depth;
3885 int bpp;
3886
3887 if (plane >= drm_format_num_planes(format))
3888 return 0;
3889
3890 switch (format) {
3891 case DRM_FORMAT_YUYV:
3892 case DRM_FORMAT_YVYU:
3893 case DRM_FORMAT_UYVY:
3894 case DRM_FORMAT_VYUY:
3895 return 2;
3896 case DRM_FORMAT_NV12:
3897 case DRM_FORMAT_NV21:
3898 case DRM_FORMAT_NV16:
3899 case DRM_FORMAT_NV61:
Laurent Pinchartba623f62012-05-18 23:47:40 +02003900 case DRM_FORMAT_NV24:
3901 case DRM_FORMAT_NV42:
Ville Syrjälä5a86bd52012-04-05 21:35:16 +03003902 return plane ? 2 : 1;
3903 case DRM_FORMAT_YUV410:
3904 case DRM_FORMAT_YVU410:
3905 case DRM_FORMAT_YUV411:
3906 case DRM_FORMAT_YVU411:
3907 case DRM_FORMAT_YUV420:
3908 case DRM_FORMAT_YVU420:
3909 case DRM_FORMAT_YUV422:
3910 case DRM_FORMAT_YVU422:
3911 case DRM_FORMAT_YUV444:
3912 case DRM_FORMAT_YVU444:
3913 return 1;
3914 default:
3915 drm_fb_get_bpp_depth(format, &depth, &bpp);
3916 return bpp >> 3;
3917 }
3918}
3919EXPORT_SYMBOL(drm_format_plane_cpp);
Ville Syrjälä01b68b02012-04-05 21:35:17 +03003920
3921/**
3922 * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor
3923 * @format: pixel format (DRM_FORMAT_*)
3924 *
3925 * RETURNS:
3926 * The horizontal chroma subsampling factor for the
3927 * specified pixel format.
3928 */
3929int drm_format_horz_chroma_subsampling(uint32_t format)
3930{
3931 switch (format) {
3932 case DRM_FORMAT_YUV411:
3933 case DRM_FORMAT_YVU411:
3934 case DRM_FORMAT_YUV410:
3935 case DRM_FORMAT_YVU410:
3936 return 4;
3937 case DRM_FORMAT_YUYV:
3938 case DRM_FORMAT_YVYU:
3939 case DRM_FORMAT_UYVY:
3940 case DRM_FORMAT_VYUY:
3941 case DRM_FORMAT_NV12:
3942 case DRM_FORMAT_NV21:
3943 case DRM_FORMAT_NV16:
3944 case DRM_FORMAT_NV61:
3945 case DRM_FORMAT_YUV422:
3946 case DRM_FORMAT_YVU422:
3947 case DRM_FORMAT_YUV420:
3948 case DRM_FORMAT_YVU420:
3949 return 2;
3950 default:
3951 return 1;
3952 }
3953}
3954EXPORT_SYMBOL(drm_format_horz_chroma_subsampling);
3955
3956/**
3957 * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor
3958 * @format: pixel format (DRM_FORMAT_*)
3959 *
3960 * RETURNS:
3961 * The vertical chroma subsampling factor for the
3962 * specified pixel format.
3963 */
3964int drm_format_vert_chroma_subsampling(uint32_t format)
3965{
3966 switch (format) {
3967 case DRM_FORMAT_YUV410:
3968 case DRM_FORMAT_YVU410:
3969 return 4;
3970 case DRM_FORMAT_YUV420:
3971 case DRM_FORMAT_YVU420:
3972 case DRM_FORMAT_NV12:
3973 case DRM_FORMAT_NV21:
3974 return 2;
3975 default:
3976 return 1;
3977 }
3978}
3979EXPORT_SYMBOL(drm_format_vert_chroma_subsampling);
Laurent Pinchart87d24fc2013-04-15 15:37:16 +02003980
3981/**
3982 * drm_mode_config_init - initialize DRM mode_configuration structure
3983 * @dev: DRM device
3984 *
3985 * Initialize @dev's mode_config structure, used for tracking the graphics
3986 * configuration of @dev.
3987 *
3988 * Since this initializes the modeset locks, no locking is possible. Which is no
3989 * problem, since this should happen single threaded at init time. It is the
3990 * driver's problem to ensure this guarantee.
3991 *
3992 */
3993void drm_mode_config_init(struct drm_device *dev)
3994{
3995 mutex_init(&dev->mode_config.mutex);
3996 mutex_init(&dev->mode_config.idr_mutex);
3997 mutex_init(&dev->mode_config.fb_lock);
3998 INIT_LIST_HEAD(&dev->mode_config.fb_list);
3999 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
4000 INIT_LIST_HEAD(&dev->mode_config.connector_list);
Sean Paul3b336ec2013-08-14 16:47:37 -04004001 INIT_LIST_HEAD(&dev->mode_config.bridge_list);
Laurent Pinchart87d24fc2013-04-15 15:37:16 +02004002 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
4003 INIT_LIST_HEAD(&dev->mode_config.property_list);
4004 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
4005 INIT_LIST_HEAD(&dev->mode_config.plane_list);
4006 idr_init(&dev->mode_config.crtc_idr);
4007
4008 drm_modeset_lock_all(dev);
4009 drm_mode_create_standard_connector_properties(dev);
4010 drm_modeset_unlock_all(dev);
4011
4012 /* Just to be sure */
4013 dev->mode_config.num_fb = 0;
4014 dev->mode_config.num_connector = 0;
4015 dev->mode_config.num_crtc = 0;
4016 dev->mode_config.num_encoder = 0;
4017}
4018EXPORT_SYMBOL(drm_mode_config_init);
4019
4020/**
4021 * drm_mode_config_cleanup - free up DRM mode_config info
4022 * @dev: DRM device
4023 *
4024 * Free up all the connectors and CRTCs associated with this DRM device, then
4025 * free up the framebuffers and associated buffer objects.
4026 *
4027 * Note that since this /should/ happen single-threaded at driver/device
4028 * teardown time, no locking is required. It's the driver's job to ensure that
4029 * this guarantee actually holds true.
4030 *
4031 * FIXME: cleanup any dangling user buffer objects too
4032 */
4033void drm_mode_config_cleanup(struct drm_device *dev)
4034{
4035 struct drm_connector *connector, *ot;
4036 struct drm_crtc *crtc, *ct;
4037 struct drm_encoder *encoder, *enct;
Sean Paul3b336ec2013-08-14 16:47:37 -04004038 struct drm_bridge *bridge, *brt;
Laurent Pinchart87d24fc2013-04-15 15:37:16 +02004039 struct drm_framebuffer *fb, *fbt;
4040 struct drm_property *property, *pt;
4041 struct drm_property_blob *blob, *bt;
4042 struct drm_plane *plane, *plt;
4043
4044 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
4045 head) {
4046 encoder->funcs->destroy(encoder);
4047 }
4048
Sean Paul3b336ec2013-08-14 16:47:37 -04004049 list_for_each_entry_safe(bridge, brt,
4050 &dev->mode_config.bridge_list, head) {
4051 bridge->funcs->destroy(bridge);
4052 }
4053
Laurent Pinchart87d24fc2013-04-15 15:37:16 +02004054 list_for_each_entry_safe(connector, ot,
4055 &dev->mode_config.connector_list, head) {
4056 connector->funcs->destroy(connector);
4057 }
4058
4059 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
4060 head) {
4061 drm_property_destroy(dev, property);
4062 }
4063
4064 list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list,
4065 head) {
4066 drm_property_destroy_blob(dev, blob);
4067 }
4068
4069 /*
4070 * Single-threaded teardown context, so it's not required to grab the
4071 * fb_lock to protect against concurrent fb_list access. Contrary, it
4072 * would actually deadlock with the drm_framebuffer_cleanup function.
4073 *
4074 * Also, if there are any framebuffers left, that's a driver leak now,
4075 * so politely WARN about this.
4076 */
4077 WARN_ON(!list_empty(&dev->mode_config.fb_list));
4078 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
4079 drm_framebuffer_remove(fb);
4080 }
4081
4082 list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
4083 head) {
4084 plane->funcs->destroy(plane);
4085 }
4086
4087 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
4088 crtc->funcs->destroy(crtc);
4089 }
4090
4091 idr_destroy(&dev->mode_config.crtc_idr);
4092}
4093EXPORT_SYMBOL(drm_mode_config_cleanup);