blob: 3007b44e6bf4494c36e06f65210efa98ea5b4a86 [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>
Rob Clark51fd3712013-11-19 12:10:12 -050040#include <drm/drm_modeset_lock.h>
Rob Clark88a48e22014-12-18 16:01:50 -050041#include <drm/drm_atomic.h>
Dave Airlief453ba02008-11-07 14:05:41 -080042
Daniel Vetter8bd441b2014-01-23 15:35:24 +010043#include "drm_crtc_internal.h"
Daniel Vetter67d0ec42014-09-10 12:43:53 +020044#include "drm_internal.h"
Daniel Vetter8bd441b2014-01-23 15:35:24 +010045
Chris Wilson9a6f5132015-02-25 13:45:26 +000046static struct drm_framebuffer *
47internal_framebuffer_create(struct drm_device *dev,
48 struct drm_mode_fb_cmd2 *r,
49 struct drm_file *file_priv);
Matt Roperc394c2b2014-06-10 08:28:08 -070050
Dave Airlief453ba02008-11-07 14:05:41 -080051/* Avoid boilerplate. I'm tired of typing. */
52#define DRM_ENUM_NAME_FN(fnname, list) \
Ville Syrjäläd20d3172013-06-07 15:43:07 +000053 const char *fnname(int val) \
Dave Airlief453ba02008-11-07 14:05:41 -080054 { \
55 int i; \
56 for (i = 0; i < ARRAY_SIZE(list); i++) { \
57 if (list[i].type == val) \
58 return list[i].name; \
59 } \
60 return "(unknown)"; \
61 }
62
63/*
64 * Global properties
65 */
Thierry Reding4dfd9092014-12-10 13:03:34 +010066static const struct drm_prop_enum_list drm_dpms_enum_list[] = {
67 { DRM_MODE_DPMS_ON, "On" },
Dave Airlief453ba02008-11-07 14:05:41 -080068 { DRM_MODE_DPMS_STANDBY, "Standby" },
69 { DRM_MODE_DPMS_SUSPEND, "Suspend" },
70 { DRM_MODE_DPMS_OFF, "Off" }
71};
72
73DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
74
Thierry Reding4dfd9092014-12-10 13:03:34 +010075static const struct drm_prop_enum_list drm_plane_type_enum_list[] = {
Rob Clark9922ab52014-04-01 20:16:57 -040076 { DRM_PLANE_TYPE_OVERLAY, "Overlay" },
77 { DRM_PLANE_TYPE_PRIMARY, "Primary" },
78 { DRM_PLANE_TYPE_CURSOR, "Cursor" },
79};
80
Dave Airlief453ba02008-11-07 14:05:41 -080081/*
82 * Optional properties
83 */
Thierry Reding4dfd9092014-12-10 13:03:34 +010084static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = {
Jesse Barnes53bd8382009-07-01 10:04:40 -070085 { DRM_MODE_SCALE_NONE, "None" },
86 { DRM_MODE_SCALE_FULLSCREEN, "Full" },
87 { DRM_MODE_SCALE_CENTER, "Center" },
88 { DRM_MODE_SCALE_ASPECT, "Full aspect" },
Dave Airlief453ba02008-11-07 14:05:41 -080089};
90
Vandana Kannanff587e42014-06-11 10:46:48 +053091static const struct drm_prop_enum_list drm_aspect_ratio_enum_list[] = {
92 { DRM_MODE_PICTURE_ASPECT_NONE, "Automatic" },
93 { DRM_MODE_PICTURE_ASPECT_4_3, "4:3" },
94 { DRM_MODE_PICTURE_ASPECT_16_9, "16:9" },
95};
96
Dave Airlief453ba02008-11-07 14:05:41 -080097/*
98 * Non-global properties, but "required" for certain connectors.
99 */
Thierry Reding4dfd9092014-12-10 13:03:34 +0100100static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = {
Dave Airlief453ba02008-11-07 14:05:41 -0800101 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
102 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
103 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
104};
105
106DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
107
Thierry Reding4dfd9092014-12-10 13:03:34 +0100108static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = {
Dave Airlief453ba02008-11-07 14:05:41 -0800109 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
110 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
111 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
112};
113
114DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
115 drm_dvi_i_subconnector_enum_list)
116
Thierry Reding4dfd9092014-12-10 13:03:34 +0100117static const struct drm_prop_enum_list drm_tv_select_enum_list[] = {
Dave Airlief453ba02008-11-07 14:05:41 -0800118 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
119 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
120 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
121 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
Francisco Jerezaeaa1ad2009-08-02 04:19:19 +0200122 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
Dave Airlief453ba02008-11-07 14:05:41 -0800123};
124
125DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
126
Thierry Reding4dfd9092014-12-10 13:03:34 +0100127static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = {
Dave Airlief453ba02008-11-07 14:05:41 -0800128 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
129 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
130 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
131 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
Francisco Jerezaeaa1ad2009-08-02 04:19:19 +0200132 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
Dave Airlief453ba02008-11-07 14:05:41 -0800133};
134
135DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
136 drm_tv_subconnector_enum_list)
137
Ville Syrjäläd20d3172013-06-07 15:43:07 +0000138static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
Jakob Bornecrantz884840a2009-12-03 23:25:47 +0000139 { DRM_MODE_DIRTY_OFF, "Off" },
140 { DRM_MODE_DIRTY_ON, "On" },
141 { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
142};
143
Dave Airlief453ba02008-11-07 14:05:41 -0800144struct drm_conn_prop_enum_list {
145 int type;
Ville Syrjäläd20d3172013-06-07 15:43:07 +0000146 const char *name;
Ilia Mirkinb21e3af2013-08-07 22:34:48 -0400147 struct ida ida;
Dave Airlief453ba02008-11-07 14:05:41 -0800148};
149
150/*
151 * Connector and encoder types.
152 */
Thierry Reding4dfd9092014-12-10 13:03:34 +0100153static struct drm_conn_prop_enum_list drm_connector_enum_list[] = {
154 { DRM_MODE_CONNECTOR_Unknown, "Unknown" },
Ilia Mirkinb21e3af2013-08-07 22:34:48 -0400155 { DRM_MODE_CONNECTOR_VGA, "VGA" },
156 { DRM_MODE_CONNECTOR_DVII, "DVI-I" },
157 { DRM_MODE_CONNECTOR_DVID, "DVI-D" },
158 { DRM_MODE_CONNECTOR_DVIA, "DVI-A" },
159 { DRM_MODE_CONNECTOR_Composite, "Composite" },
160 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" },
161 { DRM_MODE_CONNECTOR_LVDS, "LVDS" },
162 { DRM_MODE_CONNECTOR_Component, "Component" },
163 { DRM_MODE_CONNECTOR_9PinDIN, "DIN" },
164 { DRM_MODE_CONNECTOR_DisplayPort, "DP" },
165 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" },
166 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" },
167 { DRM_MODE_CONNECTOR_TV, "TV" },
168 { DRM_MODE_CONNECTOR_eDP, "eDP" },
169 { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" },
Shobhit Kumarb8923272013-08-27 15:12:13 +0300170 { DRM_MODE_CONNECTOR_DSI, "DSI" },
Dave Airlief453ba02008-11-07 14:05:41 -0800171};
172
Thierry Reding4dfd9092014-12-10 13:03:34 +0100173static const struct drm_prop_enum_list drm_encoder_enum_list[] = {
174 { DRM_MODE_ENCODER_NONE, "None" },
Dave Airlief453ba02008-11-07 14:05:41 -0800175 { DRM_MODE_ENCODER_DAC, "DAC" },
176 { DRM_MODE_ENCODER_TMDS, "TMDS" },
177 { DRM_MODE_ENCODER_LVDS, "LVDS" },
178 { DRM_MODE_ENCODER_TVDAC, "TV" },
Thomas Hellstroma7331e52011-10-22 10:36:19 +0200179 { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
Shobhit Kumarb8923272013-08-27 15:12:13 +0300180 { DRM_MODE_ENCODER_DSI, "DSI" },
Dave Airlie182407a2014-05-02 11:09:54 +1000181 { DRM_MODE_ENCODER_DPMST, "DP MST" },
Dave Airlief453ba02008-11-07 14:05:41 -0800182};
183
Thierry Reding4dfd9092014-12-10 13:03:34 +0100184static const struct drm_prop_enum_list drm_subpixel_enum_list[] = {
Jesse Barnesac1bb362014-02-10 15:32:44 -0800185 { SubPixelUnknown, "Unknown" },
186 { SubPixelHorizontalRGB, "Horizontal RGB" },
187 { SubPixelHorizontalBGR, "Horizontal BGR" },
188 { SubPixelVerticalRGB, "Vertical RGB" },
189 { SubPixelVerticalBGR, "Vertical BGR" },
190 { SubPixelNone, "None" },
191};
192
Ilia Mirkinb21e3af2013-08-07 22:34:48 -0400193void drm_connector_ida_init(void)
194{
195 int i;
196
197 for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++)
198 ida_init(&drm_connector_enum_list[i].ida);
199}
200
201void drm_connector_ida_destroy(void)
202{
203 int i;
204
205 for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++)
206 ida_destroy(&drm_connector_enum_list[i].ida);
207}
208
Daniel Vetterc8e32cc2014-03-10 21:33:02 +0100209/**
Daniel Vetterc8e32cc2014-03-10 21:33:02 +0100210 * drm_get_connector_status_name - return a string for connector status
211 * @status: connector status to compute name of
212 *
213 * In contrast to the other drm_get_*_name functions this one here returns a
214 * const pointer and hence is threadsafe.
215 */
Ville Syrjäläd20d3172013-06-07 15:43:07 +0000216const char *drm_get_connector_status_name(enum drm_connector_status status)
Dave Airlief453ba02008-11-07 14:05:41 -0800217{
218 if (status == connector_status_connected)
219 return "connected";
220 else if (status == connector_status_disconnected)
221 return "disconnected";
222 else
223 return "unknown";
224}
Lespiau, Damiened7951d2013-05-10 12:36:42 +0000225EXPORT_SYMBOL(drm_get_connector_status_name);
Dave Airlief453ba02008-11-07 14:05:41 -0800226
Jesse Barnesac1bb362014-02-10 15:32:44 -0800227/**
228 * drm_get_subpixel_order_name - return a string for a given subpixel enum
229 * @order: enum of subpixel_order
230 *
231 * Note you could abuse this and return something out of bounds, but that
232 * would be a caller error. No unscrubbed user data should make it here.
233 */
234const char *drm_get_subpixel_order_name(enum subpixel_order order)
235{
236 return drm_subpixel_enum_list[order].name;
237}
238EXPORT_SYMBOL(drm_get_subpixel_order_name);
239
Ville Syrjälä6ba6d032013-06-10 11:15:10 +0300240static char printable_char(int c)
241{
242 return isascii(c) && isprint(c) ? c : '?';
243}
244
Daniel Vetterc8e32cc2014-03-10 21:33:02 +0100245/**
246 * drm_get_format_name - return a string for drm fourcc format
247 * @format: format to compute name of
248 *
249 * Note that the buffer used by this function is globally shared and owned by
250 * the function itself.
251 *
252 * FIXME: This isn't really multithreading safe.
253 */
Ville Syrjäläd20d3172013-06-07 15:43:07 +0000254const char *drm_get_format_name(uint32_t format)
Ville Syrjälä6ba6d032013-06-10 11:15:10 +0300255{
256 static char buf[32];
257
258 snprintf(buf, sizeof(buf),
259 "%c%c%c%c %s-endian (0x%08x)",
260 printable_char(format & 0xff),
261 printable_char((format >> 8) & 0xff),
262 printable_char((format >> 16) & 0xff),
263 printable_char((format >> 24) & 0x7f),
264 format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little",
265 format);
266
267 return buf;
268}
269EXPORT_SYMBOL(drm_get_format_name);
270
Dave Airlie2ee39452014-07-24 11:53:45 +1000271/*
272 * Internal function to assign a slot in the object idr and optionally
273 * register the object into the idr.
274 */
275static int drm_mode_object_get_reg(struct drm_device *dev,
276 struct drm_mode_object *obj,
277 uint32_t obj_type,
278 bool register_obj)
279{
280 int ret;
281
282 mutex_lock(&dev->mode_config.idr_mutex);
283 ret = idr_alloc(&dev->mode_config.crtc_idr, register_obj ? obj : NULL, 1, 0, GFP_KERNEL);
284 if (ret >= 0) {
285 /*
286 * Set up the object linking under the protection of the idr
287 * lock so that other users can't see inconsistent state.
288 */
289 obj->id = ret;
290 obj->type = obj_type;
291 }
292 mutex_unlock(&dev->mode_config.idr_mutex);
293
294 return ret < 0 ? ret : 0;
295}
296
Dave Airlief453ba02008-11-07 14:05:41 -0800297/**
Daniel Vetter065a50ed2012-12-02 00:09:18 +0100298 * drm_mode_object_get - allocate a new modeset identifier
Dave Airlief453ba02008-11-07 14:05:41 -0800299 * @dev: DRM device
Daniel Vetter065a50ed2012-12-02 00:09:18 +0100300 * @obj: object pointer, used to generate unique ID
301 * @obj_type: object type
Dave Airlief453ba02008-11-07 14:05:41 -0800302 *
Dave Airlief453ba02008-11-07 14:05:41 -0800303 * Create a unique identifier based on @ptr in @dev's identifier space. Used
Daniel Vetterc8e32cc2014-03-10 21:33:02 +0100304 * for tracking modes, CRTCs and connectors. Note that despite the _get postfix
305 * modeset identifiers are _not_ reference counted. Hence don't use this for
306 * reference counted modeset objects like framebuffers.
Dave Airlief453ba02008-11-07 14:05:41 -0800307 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +0100308 * Returns:
Dave Airlief453ba02008-11-07 14:05:41 -0800309 * New unique (relative to other objects in @dev) integer identifier for the
310 * object.
311 */
Daniel Vetter8bd441b2014-01-23 15:35:24 +0100312int drm_mode_object_get(struct drm_device *dev,
313 struct drm_mode_object *obj, uint32_t obj_type)
Dave Airlief453ba02008-11-07 14:05:41 -0800314{
Dave Airlie2ee39452014-07-24 11:53:45 +1000315 return drm_mode_object_get_reg(dev, obj, obj_type, true);
316}
Dave Airlief453ba02008-11-07 14:05:41 -0800317
Dave Airlie2ee39452014-07-24 11:53:45 +1000318static void drm_mode_object_register(struct drm_device *dev,
319 struct drm_mode_object *obj)
320{
Jesse Barnesad2563c2009-01-19 17:21:45 +1000321 mutex_lock(&dev->mode_config.idr_mutex);
Dave Airlie2ee39452014-07-24 11:53:45 +1000322 idr_replace(&dev->mode_config.crtc_idr, obj, obj->id);
Jesse Barnesad2563c2009-01-19 17:21:45 +1000323 mutex_unlock(&dev->mode_config.idr_mutex);
Dave Airlief453ba02008-11-07 14:05:41 -0800324}
325
326/**
Daniel Vetter065a50ed2012-12-02 00:09:18 +0100327 * drm_mode_object_put - free a modeset identifer
Dave Airlief453ba02008-11-07 14:05:41 -0800328 * @dev: DRM device
Daniel Vetter065a50ed2012-12-02 00:09:18 +0100329 * @object: object to free
Dave Airlief453ba02008-11-07 14:05:41 -0800330 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +0100331 * Free @id from @dev's unique identifier pool. Note that despite the _get
332 * postfix modeset identifiers are _not_ reference counted. Hence don't use this
333 * for reference counted modeset objects like framebuffers.
Dave Airlief453ba02008-11-07 14:05:41 -0800334 */
Daniel Vetter8bd441b2014-01-23 15:35:24 +0100335void drm_mode_object_put(struct drm_device *dev,
336 struct drm_mode_object *object)
Dave Airlief453ba02008-11-07 14:05:41 -0800337{
Jesse Barnesad2563c2009-01-19 17:21:45 +1000338 mutex_lock(&dev->mode_config.idr_mutex);
Dave Airlief453ba02008-11-07 14:05:41 -0800339 idr_remove(&dev->mode_config.crtc_idr, object->id);
Jesse Barnesad2563c2009-01-19 17:21:45 +1000340 mutex_unlock(&dev->mode_config.idr_mutex);
Dave Airlief453ba02008-11-07 14:05:41 -0800341}
342
Rob Clark98f75de2014-05-30 11:37:03 -0400343static struct drm_mode_object *_object_find(struct drm_device *dev,
344 uint32_t id, uint32_t type)
345{
346 struct drm_mode_object *obj = NULL;
347
348 mutex_lock(&dev->mode_config.idr_mutex);
349 obj = idr_find(&dev->mode_config.crtc_idr, id);
Daniel Vetter168c02e2014-07-24 12:12:45 +0200350 if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type)
351 obj = NULL;
352 if (obj && obj->id != id)
353 obj = NULL;
354 /* don't leak out unref'd fb's */
355 if (obj && (obj->type == DRM_MODE_OBJECT_FB))
Rob Clark98f75de2014-05-30 11:37:03 -0400356 obj = NULL;
357 mutex_unlock(&dev->mode_config.idr_mutex);
358
359 return obj;
360}
361
Daniel Vetter786b99e2012-12-02 21:53:40 +0100362/**
363 * drm_mode_object_find - look up a drm object with static lifetime
364 * @dev: drm device
365 * @id: id of the mode object
366 * @type: type of the mode object
367 *
368 * Note that framebuffers cannot be looked up with this functions - since those
Rob Clark98f75de2014-05-30 11:37:03 -0400369 * are reference counted, they need special treatment. Even with
370 * DRM_MODE_OBJECT_ANY (although that will simply return NULL
371 * rather than WARN_ON()).
Daniel Vetter786b99e2012-12-02 21:53:40 +0100372 */
Daniel Vetter7a9c9062009-09-15 22:57:31 +0200373struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
374 uint32_t id, uint32_t type)
Dave Airlief453ba02008-11-07 14:05:41 -0800375{
Jesse Barnesad2563c2009-01-19 17:21:45 +1000376 struct drm_mode_object *obj = NULL;
Dave Airlief453ba02008-11-07 14:05:41 -0800377
Daniel Vetter786b99e2012-12-02 21:53:40 +0100378 /* Framebuffers are reference counted and need their own lookup
379 * function.*/
380 WARN_ON(type == DRM_MODE_OBJECT_FB);
Rob Clark98f75de2014-05-30 11:37:03 -0400381 obj = _object_find(dev, id, type);
Dave Airlief453ba02008-11-07 14:05:41 -0800382 return obj;
383}
384EXPORT_SYMBOL(drm_mode_object_find);
385
386/**
Dave Airlief453ba02008-11-07 14:05:41 -0800387 * drm_framebuffer_init - initialize a framebuffer
388 * @dev: DRM device
Daniel Vetter065a50ed2012-12-02 00:09:18 +0100389 * @fb: framebuffer to be initialized
390 * @funcs: ... with these functions
Dave Airlief453ba02008-11-07 14:05:41 -0800391 *
Dave Airlief453ba02008-11-07 14:05:41 -0800392 * Allocates an ID for the framebuffer's parent mode object, sets its mode
393 * functions & device file and adds it to the master fd list.
394 *
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100395 * IMPORTANT:
396 * This functions publishes the fb and makes it available for concurrent access
397 * by other users. Which means by this point the fb _must_ be fully set up -
398 * since all the fb attributes are invariant over its lifetime, no further
399 * locking but only correct reference counting is required.
400 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +0100401 * Returns:
André Goddard Rosaaf901ca2009-11-14 13:09:05 -0200402 * Zero on success, error code on failure.
Dave Airlief453ba02008-11-07 14:05:41 -0800403 */
404int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
405 const struct drm_framebuffer_funcs *funcs)
406{
407 int ret;
408
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100409 mutex_lock(&dev->mode_config.fb_lock);
Rob Clarkf7eff602012-09-05 21:48:38 +0000410 kref_init(&fb->refcount);
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100411 INIT_LIST_HEAD(&fb->filp_head);
412 fb->dev = dev;
413 fb->funcs = funcs;
Rob Clarkf7eff602012-09-05 21:48:38 +0000414
Dave Airlief453ba02008-11-07 14:05:41 -0800415 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200416 if (ret)
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100417 goto out;
Dave Airlief453ba02008-11-07 14:05:41 -0800418
Dave Airlief453ba02008-11-07 14:05:41 -0800419 dev->mode_config.num_fb++;
420 list_add(&fb->head, &dev->mode_config.fb_list);
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100421out:
422 mutex_unlock(&dev->mode_config.fb_lock);
Dave Airlief453ba02008-11-07 14:05:41 -0800423
424 return 0;
425}
426EXPORT_SYMBOL(drm_framebuffer_init);
427
Daniel Vetter83f45fc2014-08-06 09:10:18 +0200428/* dev->mode_config.fb_lock must be held! */
429static void __drm_framebuffer_unregister(struct drm_device *dev,
430 struct drm_framebuffer *fb)
431{
432 mutex_lock(&dev->mode_config.idr_mutex);
433 idr_remove(&dev->mode_config.crtc_idr, fb->base.id);
434 mutex_unlock(&dev->mode_config.idr_mutex);
435
436 fb->base.id = 0;
437}
438
Rob Clarkf7eff602012-09-05 21:48:38 +0000439static void drm_framebuffer_free(struct kref *kref)
440{
441 struct drm_framebuffer *fb =
442 container_of(kref, struct drm_framebuffer, refcount);
Daniel Vetter83f45fc2014-08-06 09:10:18 +0200443 struct drm_device *dev = fb->dev;
444
445 /*
446 * The lookup idr holds a weak reference, which has not necessarily been
447 * removed at this point. Check for that.
448 */
449 mutex_lock(&dev->mode_config.fb_lock);
450 if (fb->base.id) {
451 /* Mark fb as reaped and drop idr ref. */
452 __drm_framebuffer_unregister(dev, fb);
453 }
454 mutex_unlock(&dev->mode_config.fb_lock);
455
Rob Clarkf7eff602012-09-05 21:48:38 +0000456 fb->funcs->destroy(fb);
457}
458
Daniel Vetter2b677e82012-12-10 21:16:05 +0100459static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev,
460 uint32_t id)
461{
462 struct drm_mode_object *obj = NULL;
463 struct drm_framebuffer *fb;
464
465 mutex_lock(&dev->mode_config.idr_mutex);
466 obj = idr_find(&dev->mode_config.crtc_idr, id);
467 if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id))
468 fb = NULL;
469 else
470 fb = obj_to_fb(obj);
471 mutex_unlock(&dev->mode_config.idr_mutex);
472
473 return fb;
474}
475
Rob Clarkf7eff602012-09-05 21:48:38 +0000476/**
Daniel Vetter786b99e2012-12-02 21:53:40 +0100477 * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference
478 * @dev: drm device
479 * @id: id of the fb object
480 *
481 * If successful, this grabs an additional reference to the framebuffer -
482 * callers need to make sure to eventually unreference the returned framebuffer
Daniel Vetterc8e32cc2014-03-10 21:33:02 +0100483 * again, using @drm_framebuffer_unreference.
Daniel Vetter786b99e2012-12-02 21:53:40 +0100484 */
485struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
486 uint32_t id)
487{
Daniel Vetter786b99e2012-12-02 21:53:40 +0100488 struct drm_framebuffer *fb;
489
490 mutex_lock(&dev->mode_config.fb_lock);
Daniel Vetter2b677e82012-12-10 21:16:05 +0100491 fb = __drm_framebuffer_lookup(dev, id);
Daniel Vetter83f45fc2014-08-06 09:10:18 +0200492 if (fb) {
493 if (!kref_get_unless_zero(&fb->refcount))
494 fb = NULL;
495 }
Daniel Vetter786b99e2012-12-02 21:53:40 +0100496 mutex_unlock(&dev->mode_config.fb_lock);
497
498 return fb;
499}
500EXPORT_SYMBOL(drm_framebuffer_lookup);
501
502/**
Rob Clarkf7eff602012-09-05 21:48:38 +0000503 * drm_framebuffer_unreference - unref a framebuffer
Daniel Vetter065a50ed2012-12-02 00:09:18 +0100504 * @fb: framebuffer to unref
505 *
506 * This functions decrements the fb's refcount and frees it if it drops to zero.
Rob Clarkf7eff602012-09-05 21:48:38 +0000507 */
508void drm_framebuffer_unreference(struct drm_framebuffer *fb)
509{
Rob Clark82912722014-03-18 10:07:08 -0400510 DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount));
Rob Clarkf7eff602012-09-05 21:48:38 +0000511 kref_put(&fb->refcount, drm_framebuffer_free);
512}
513EXPORT_SYMBOL(drm_framebuffer_unreference);
514
515/**
516 * drm_framebuffer_reference - incr the fb refcnt
Daniel Vetter065a50ed2012-12-02 00:09:18 +0100517 * @fb: framebuffer
Daniel Vetterc8e32cc2014-03-10 21:33:02 +0100518 *
519 * This functions increments the fb's refcount.
Rob Clarkf7eff602012-09-05 21:48:38 +0000520 */
521void drm_framebuffer_reference(struct drm_framebuffer *fb)
522{
Rob Clark82912722014-03-18 10:07:08 -0400523 DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount));
Rob Clarkf7eff602012-09-05 21:48:38 +0000524 kref_get(&fb->refcount);
525}
526EXPORT_SYMBOL(drm_framebuffer_reference);
527
Dave Airlief453ba02008-11-07 14:05:41 -0800528/**
Daniel Vetter36206362012-12-10 20:42:17 +0100529 * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr
530 * @fb: fb to unregister
531 *
532 * Drivers need to call this when cleaning up driver-private framebuffers, e.g.
533 * those used for fbdev. Note that the caller must hold a reference of it's own,
534 * i.e. the object may not be destroyed through this call (since it'll lead to a
535 * locking inversion).
536 */
537void drm_framebuffer_unregister_private(struct drm_framebuffer *fb)
538{
Daniel Vetter2b677e82012-12-10 21:16:05 +0100539 struct drm_device *dev = fb->dev;
540
541 mutex_lock(&dev->mode_config.fb_lock);
542 /* Mark fb as reaped and drop idr ref. */
543 __drm_framebuffer_unregister(dev, fb);
544 mutex_unlock(&dev->mode_config.fb_lock);
Daniel Vetter36206362012-12-10 20:42:17 +0100545}
546EXPORT_SYMBOL(drm_framebuffer_unregister_private);
547
548/**
Dave Airlief453ba02008-11-07 14:05:41 -0800549 * drm_framebuffer_cleanup - remove a framebuffer object
550 * @fb: framebuffer to remove
551 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +0100552 * Cleanup framebuffer. This function is intended to be used from the drivers
553 * ->destroy callback. It can also be used to clean up driver private
554 * framebuffers embedded into a larger structure.
Daniel Vetter36206362012-12-10 20:42:17 +0100555 *
556 * Note that this function does not remove the fb from active usuage - if it is
557 * still used anywhere, hilarity can ensue since userspace could call getfb on
558 * the id and get back -EINVAL. Obviously no concern at driver unload time.
559 *
560 * Also, the framebuffer will not be removed from the lookup idr - for
561 * user-created framebuffers this will happen in in the rmfb ioctl. For
562 * driver-private objects (e.g. for fbdev) drivers need to explicitly call
563 * drm_framebuffer_unregister_private.
Dave Airlief453ba02008-11-07 14:05:41 -0800564 */
565void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
566{
567 struct drm_device *dev = fb->dev;
Daniel Vetter8faf6b12012-12-01 23:43:11 +0100568
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100569 mutex_lock(&dev->mode_config.fb_lock);
Rob Clarkf7eff602012-09-05 21:48:38 +0000570 list_del(&fb->head);
571 dev->mode_config.num_fb--;
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100572 mutex_unlock(&dev->mode_config.fb_lock);
Rob Clarkf7eff602012-09-05 21:48:38 +0000573}
574EXPORT_SYMBOL(drm_framebuffer_cleanup);
575
576/**
577 * drm_framebuffer_remove - remove and unreference a framebuffer object
578 * @fb: framebuffer to remove
579 *
Rob Clarkf7eff602012-09-05 21:48:38 +0000580 * Scans all the CRTCs and planes in @dev's mode_config. If they're
Daniel Vetter36206362012-12-10 20:42:17 +0100581 * using @fb, removes it, setting it to NULL. Then drops the reference to the
Daniel Vetterb62584e2012-12-11 16:51:35 +0100582 * passed-in framebuffer. Might take the modeset locks.
583 *
584 * Note that this function optimizes the cleanup away if the caller holds the
585 * last reference to the framebuffer. It is also guaranteed to not take the
586 * modeset locks in this case.
Rob Clarkf7eff602012-09-05 21:48:38 +0000587 */
588void drm_framebuffer_remove(struct drm_framebuffer *fb)
589{
590 struct drm_device *dev = fb->dev;
Dave Airlief453ba02008-11-07 14:05:41 -0800591 struct drm_crtc *crtc;
Jesse Barnes8cf5c912011-11-14 14:51:27 -0800592 struct drm_plane *plane;
Dave Airlie5ef5f722009-08-17 13:11:23 +1000593 struct drm_mode_set set;
594 int ret;
Dave Airlief453ba02008-11-07 14:05:41 -0800595
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100596 WARN_ON(!list_empty(&fb->filp_head));
Daniel Vetter8faf6b12012-12-01 23:43:11 +0100597
Daniel Vetterb62584e2012-12-11 16:51:35 +0100598 /*
599 * drm ABI mandates that we remove any deleted framebuffers from active
600 * useage. But since most sane clients only remove framebuffers they no
601 * longer need, try to optimize this away.
602 *
603 * Since we're holding a reference ourselves, observing a refcount of 1
604 * means that we're the last holder and can skip it. Also, the refcount
605 * can never increase from 1 again, so we don't need any barriers or
606 * locks.
607 *
608 * Note that userspace could try to race with use and instate a new
609 * usage _after_ we've cleared all current ones. End result will be an
610 * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot
611 * in this manner.
612 */
613 if (atomic_read(&fb->refcount.refcount) > 1) {
614 drm_modeset_lock_all(dev);
615 /* remove from any CRTC */
616 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
Matt Roperf4510a22014-04-01 15:22:40 -0700617 if (crtc->primary->fb == fb) {
Daniel Vetterb62584e2012-12-11 16:51:35 +0100618 /* should turn off the crtc */
619 memset(&set, 0, sizeof(struct drm_mode_set));
620 set.crtc = crtc;
621 set.fb = NULL;
622 ret = drm_mode_set_config_internal(&set);
623 if (ret)
624 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
625 }
Dave Airlie5ef5f722009-08-17 13:11:23 +1000626 }
Dave Airlief453ba02008-11-07 14:05:41 -0800627
Daniel Vetterb62584e2012-12-11 16:51:35 +0100628 list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
Ville Syrjälä9125e612013-06-03 16:10:40 +0300629 if (plane->fb == fb)
630 drm_plane_force_disable(plane);
Jesse Barnes8cf5c912011-11-14 14:51:27 -0800631 }
Daniel Vetterb62584e2012-12-11 16:51:35 +0100632 drm_modeset_unlock_all(dev);
Jesse Barnes8cf5c912011-11-14 14:51:27 -0800633 }
634
Rob Clarkf7eff602012-09-05 21:48:38 +0000635 drm_framebuffer_unreference(fb);
Dave Airlief453ba02008-11-07 14:05:41 -0800636}
Rob Clarkf7eff602012-09-05 21:48:38 +0000637EXPORT_SYMBOL(drm_framebuffer_remove);
Dave Airlief453ba02008-11-07 14:05:41 -0800638
Rob Clark51fd3712013-11-19 12:10:12 -0500639DEFINE_WW_CLASS(crtc_ww_class);
640
Dave Airlief453ba02008-11-07 14:05:41 -0800641/**
Matt Ropere13161a2014-04-01 15:22:38 -0700642 * drm_crtc_init_with_planes - Initialise a new CRTC object with
643 * specified primary and cursor planes.
Dave Airlief453ba02008-11-07 14:05:41 -0800644 * @dev: DRM device
645 * @crtc: CRTC object to init
Matt Ropere13161a2014-04-01 15:22:38 -0700646 * @primary: Primary plane for CRTC
647 * @cursor: Cursor plane for CRTC
Dave Airlief453ba02008-11-07 14:05:41 -0800648 * @funcs: callbacks for the new CRTC
649 *
Ville Syrjäläad6f5c32013-06-05 12:39:55 +0000650 * Inits a new object created as base part of a driver crtc object.
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200651 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +0100652 * Returns:
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200653 * Zero on success, error code on failure.
Dave Airlief453ba02008-11-07 14:05:41 -0800654 */
Matt Ropere13161a2014-04-01 15:22:38 -0700655int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc,
656 struct drm_plane *primary,
Matt Roperfc1d3e42014-06-10 08:28:11 -0700657 struct drm_plane *cursor,
Matt Ropere13161a2014-04-01 15:22:38 -0700658 const struct drm_crtc_funcs *funcs)
Dave Airlief453ba02008-11-07 14:05:41 -0800659{
Rob Clark51fd3712013-11-19 12:10:12 -0500660 struct drm_mode_config *config = &dev->mode_config;
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200661 int ret;
662
Benjamin Gaignard522cf912015-03-17 12:05:29 +0100663 WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY);
664 WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR);
665
Dave Airlief453ba02008-11-07 14:05:41 -0800666 crtc->dev = dev;
667 crtc->funcs = funcs;
Rob Clark7c80e122012-09-04 16:35:56 +0000668 crtc->invert_dimensions = false;
Dave Airlief453ba02008-11-07 14:05:41 -0800669
Rob Clark51fd3712013-11-19 12:10:12 -0500670 drm_modeset_lock_init(&crtc->mutex);
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200671 ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
672 if (ret)
Daniel Vetterbaf698b2014-11-12 11:59:47 +0100673 return ret;
Dave Airlief453ba02008-11-07 14:05:41 -0800674
Paulo Zanonibffd9de02012-05-15 18:09:05 -0300675 crtc->base.properties = &crtc->properties;
676
Rob Clark51fd3712013-11-19 12:10:12 -0500677 list_add_tail(&crtc->head, &config->crtc_list);
678 config->num_crtc++;
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200679
Matt Ropere13161a2014-04-01 15:22:38 -0700680 crtc->primary = primary;
Matt Roperfc1d3e42014-06-10 08:28:11 -0700681 crtc->cursor = cursor;
Matt Ropere13161a2014-04-01 15:22:38 -0700682 if (primary)
683 primary->possible_crtcs = 1 << drm_crtc_index(crtc);
Matt Roperfc1d3e42014-06-10 08:28:11 -0700684 if (cursor)
685 cursor->possible_crtcs = 1 << drm_crtc_index(crtc);
Matt Ropere13161a2014-04-01 15:22:38 -0700686
Daniel Vettereab3bbe2015-01-22 16:36:21 +0100687 if (drm_core_check_feature(dev, DRIVER_ATOMIC)) {
688 drm_object_attach_property(&crtc->base, config->prop_active, 0);
689 }
690
Daniel Vetterbaf698b2014-11-12 11:59:47 +0100691 return 0;
Dave Airlief453ba02008-11-07 14:05:41 -0800692}
Matt Ropere13161a2014-04-01 15:22:38 -0700693EXPORT_SYMBOL(drm_crtc_init_with_planes);
Dave Airlief453ba02008-11-07 14:05:41 -0800694
695/**
Ville Syrjäläad6f5c32013-06-05 12:39:55 +0000696 * drm_crtc_cleanup - Clean up the core crtc usage
Dave Airlief453ba02008-11-07 14:05:41 -0800697 * @crtc: CRTC to cleanup
698 *
Ville Syrjäläad6f5c32013-06-05 12:39:55 +0000699 * This function cleans up @crtc and removes it from the DRM mode setting
700 * core. Note that the function does *not* free the crtc structure itself,
701 * this is the responsibility of the caller.
Dave Airlief453ba02008-11-07 14:05:41 -0800702 */
703void drm_crtc_cleanup(struct drm_crtc *crtc)
704{
705 struct drm_device *dev = crtc->dev;
706
Sachin Kamat9e1c1562012-11-19 09:44:56 +0000707 kfree(crtc->gamma_store);
708 crtc->gamma_store = NULL;
Dave Airlief453ba02008-11-07 14:05:41 -0800709
Rob Clark51fd3712013-11-19 12:10:12 -0500710 drm_modeset_lock_fini(&crtc->mutex);
711
Dave Airlief453ba02008-11-07 14:05:41 -0800712 drm_mode_object_put(dev, &crtc->base);
713 list_del(&crtc->head);
714 dev->mode_config.num_crtc--;
Thierry Reding3009c032014-11-25 12:09:49 +0100715
716 WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state);
717 if (crtc->state && crtc->funcs->atomic_destroy_state)
718 crtc->funcs->atomic_destroy_state(crtc, crtc->state);
Thierry Redinga18c0af2014-12-10 11:38:49 +0100719
720 memset(crtc, 0, sizeof(*crtc));
Dave Airlief453ba02008-11-07 14:05:41 -0800721}
722EXPORT_SYMBOL(drm_crtc_cleanup);
723
724/**
Russell Kingdb5f7a62014-01-02 21:27:33 +0000725 * drm_crtc_index - find the index of a registered CRTC
726 * @crtc: CRTC to find index for
727 *
728 * Given a registered CRTC, return the index of that CRTC within a DRM
729 * device's list of CRTCs.
730 */
731unsigned int drm_crtc_index(struct drm_crtc *crtc)
732{
733 unsigned int index = 0;
734 struct drm_crtc *tmp;
735
736 list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) {
737 if (tmp == crtc)
738 return index;
739
740 index++;
741 }
742
743 BUG();
744}
745EXPORT_SYMBOL(drm_crtc_index);
746
Lespiau, Damien86f422d2013-08-20 00:53:06 +0100747/*
Dave Airlief453ba02008-11-07 14:05:41 -0800748 * drm_mode_remove - remove and free a mode
749 * @connector: connector list to modify
750 * @mode: mode to remove
751 *
Dave Airlief453ba02008-11-07 14:05:41 -0800752 * Remove @mode from @connector's mode list, then free it.
753 */
Lespiau, Damien86f422d2013-08-20 00:53:06 +0100754static void drm_mode_remove(struct drm_connector *connector,
755 struct drm_display_mode *mode)
Dave Airlief453ba02008-11-07 14:05:41 -0800756{
757 list_del(&mode->head);
Sascha Hauer554f1d72012-02-01 11:38:19 +0100758 drm_mode_destroy(connector->dev, mode);
Dave Airlief453ba02008-11-07 14:05:41 -0800759}
Dave Airlief453ba02008-11-07 14:05:41 -0800760
761/**
Boris Brezillonb5571e92014-07-22 12:09:10 +0200762 * drm_display_info_set_bus_formats - set the supported bus formats
763 * @info: display info to store bus formats in
Boris Brezillone37bfa12015-01-23 21:09:30 +0100764 * @formats: array containing the supported bus formats
765 * @num_formats: the number of entries in the fmts array
Boris Brezillonb5571e92014-07-22 12:09:10 +0200766 *
767 * Store the supported bus formats in display info structure.
768 * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for
769 * a full list of available formats.
770 */
771int drm_display_info_set_bus_formats(struct drm_display_info *info,
772 const u32 *formats,
773 unsigned int num_formats)
774{
775 u32 *fmts = NULL;
776
777 if (!formats && num_formats)
778 return -EINVAL;
779
780 if (formats && num_formats) {
781 fmts = kmemdup(formats, sizeof(*formats) * num_formats,
782 GFP_KERNEL);
Dan Carpenter944579c2015-01-28 09:43:35 +0300783 if (!fmts)
Boris Brezillonb5571e92014-07-22 12:09:10 +0200784 return -ENOMEM;
785 }
786
787 kfree(info->bus_formats);
788 info->bus_formats = fmts;
789 info->num_bus_formats = num_formats;
790
791 return 0;
792}
793EXPORT_SYMBOL(drm_display_info_set_bus_formats);
794
795/**
Chris Wilsoneaf99c72014-08-06 10:08:32 +0200796 * drm_connector_get_cmdline_mode - reads the user's cmdline mode
797 * @connector: connector to quwery
Chris Wilsoneaf99c72014-08-06 10:08:32 +0200798 *
799 * The kernel supports per-connector configration of its consoles through
800 * use of the video= parameter. This function parses that option and
801 * extracts the user's specified mode (or enable/disable status) for a
802 * particular connector. This is typically only used during the early fbdev
803 * setup.
804 */
805static void drm_connector_get_cmdline_mode(struct drm_connector *connector)
806{
807 struct drm_cmdline_mode *mode = &connector->cmdline_mode;
808 char *option = NULL;
809
810 if (fb_get_options(connector->name, &option))
811 return;
812
813 if (!drm_mode_parse_command_line_for_connector(option,
814 connector,
815 mode))
816 return;
817
818 if (mode->force) {
819 const char *s;
820
821 switch (mode->force) {
822 case DRM_FORCE_OFF:
823 s = "OFF";
824 break;
825 case DRM_FORCE_ON_DIGITAL:
826 s = "ON - dig";
827 break;
828 default:
829 case DRM_FORCE_ON:
830 s = "ON";
831 break;
832 }
833
834 DRM_INFO("forcing %s connector %s\n", connector->name, s);
835 connector->force = mode->force;
836 }
837
838 DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n",
839 connector->name,
840 mode->xres, mode->yres,
841 mode->refresh_specified ? mode->refresh : 60,
842 mode->rb ? " reduced blanking" : "",
843 mode->margins ? " with margins" : "",
844 mode->interlace ? " interlaced" : "");
845}
846
847/**
Dave Airlief453ba02008-11-07 14:05:41 -0800848 * drm_connector_init - Init a preallocated connector
849 * @dev: DRM device
850 * @connector: the connector to init
851 * @funcs: callbacks for this connector
Daniel Vetter065a50ed2012-12-02 00:09:18 +0100852 * @connector_type: user visible type of the connector
Dave Airlief453ba02008-11-07 14:05:41 -0800853 *
Dave Airlief453ba02008-11-07 14:05:41 -0800854 * Initialises a preallocated connector. Connectors should be
855 * subclassed as part of driver connector objects.
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200856 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +0100857 * Returns:
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200858 * Zero on success, error code on failure.
Dave Airlief453ba02008-11-07 14:05:41 -0800859 */
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200860int drm_connector_init(struct drm_device *dev,
861 struct drm_connector *connector,
862 const struct drm_connector_funcs *funcs,
863 int connector_type)
Dave Airlief453ba02008-11-07 14:05:41 -0800864{
Rob Clarkae16c592014-12-18 16:01:54 -0500865 struct drm_mode_config *config = &dev->mode_config;
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200866 int ret;
Ilia Mirkinb21e3af2013-08-07 22:34:48 -0400867 struct ida *connector_ida =
868 &drm_connector_enum_list[connector_type].ida;
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200869
Daniel Vetter84849902012-12-02 00:28:11 +0100870 drm_modeset_lock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -0800871
Dave Airlie2ee39452014-07-24 11:53:45 +1000872 ret = drm_mode_object_get_reg(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR, false);
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200873 if (ret)
Jani Nikula2abdd312014-05-14 16:58:19 +0300874 goto out_unlock;
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200875
Paulo Zanoni7e3bdf42012-05-15 18:09:01 -0300876 connector->base.properties = &connector->properties;
Dave Airlief453ba02008-11-07 14:05:41 -0800877 connector->dev = dev;
878 connector->funcs = funcs;
Dave Airlief453ba02008-11-07 14:05:41 -0800879 connector->connector_type = connector_type;
880 connector->connector_type_id =
Ilia Mirkinb21e3af2013-08-07 22:34:48 -0400881 ida_simple_get(connector_ida, 1, 0, GFP_KERNEL);
882 if (connector->connector_type_id < 0) {
883 ret = connector->connector_type_id;
Jani Nikula2abdd312014-05-14 16:58:19 +0300884 goto out_put;
Ilia Mirkinb21e3af2013-08-07 22:34:48 -0400885 }
Jani Nikula2abdd312014-05-14 16:58:19 +0300886 connector->name =
887 kasprintf(GFP_KERNEL, "%s-%d",
888 drm_connector_enum_list[connector_type].name,
889 connector->connector_type_id);
890 if (!connector->name) {
891 ret = -ENOMEM;
892 goto out_put;
893 }
894
Dave Airlief453ba02008-11-07 14:05:41 -0800895 INIT_LIST_HEAD(&connector->probed_modes);
896 INIT_LIST_HEAD(&connector->modes);
897 connector->edid_blob_ptr = NULL;
Daniel Vetter5e2cb2f2012-10-23 18:23:35 +0000898 connector->status = connector_status_unknown;
Dave Airlief453ba02008-11-07 14:05:41 -0800899
Chris Wilsoneaf99c72014-08-06 10:08:32 +0200900 drm_connector_get_cmdline_mode(connector);
901
Daniel Vetterc7eb76f2014-11-19 18:38:06 +0100902 /* We should add connectors at the end to avoid upsetting the connector
903 * index too much. */
Rob Clarkae16c592014-12-18 16:01:54 -0500904 list_add_tail(&connector->head, &config->connector_list);
905 config->num_connector++;
Dave Airlief453ba02008-11-07 14:05:41 -0800906
Thomas Hellstroma7331e52011-10-22 10:36:19 +0200907 if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
Rob Clark58495562012-10-11 20:50:56 -0500908 drm_object_attach_property(&connector->base,
Rob Clarkae16c592014-12-18 16:01:54 -0500909 config->edid_property,
Thomas Hellstroma7331e52011-10-22 10:36:19 +0200910 0);
Dave Airlief453ba02008-11-07 14:05:41 -0800911
Rob Clark58495562012-10-11 20:50:56 -0500912 drm_object_attach_property(&connector->base,
Rob Clarkae16c592014-12-18 16:01:54 -0500913 config->dpms_property, 0);
914
915 if (drm_core_check_feature(dev, DRIVER_ATOMIC)) {
916 drm_object_attach_property(&connector->base, config->prop_crtc_id, 0);
917 }
Dave Airlief453ba02008-11-07 14:05:41 -0800918
Thomas Wood30f65702014-06-18 17:52:32 +0100919 connector->debugfs_entry = NULL;
920
Jani Nikula2abdd312014-05-14 16:58:19 +0300921out_put:
922 if (ret)
923 drm_mode_object_put(dev, &connector->base);
924
925out_unlock:
Daniel Vetter84849902012-12-02 00:28:11 +0100926 drm_modeset_unlock_all(dev);
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +0200927
928 return ret;
Dave Airlief453ba02008-11-07 14:05:41 -0800929}
930EXPORT_SYMBOL(drm_connector_init);
931
932/**
933 * drm_connector_cleanup - cleans up an initialised connector
934 * @connector: connector to cleanup
935 *
Dave Airlief453ba02008-11-07 14:05:41 -0800936 * Cleans up the connector but doesn't free the object.
937 */
938void drm_connector_cleanup(struct drm_connector *connector)
939{
940 struct drm_device *dev = connector->dev;
941 struct drm_display_mode *mode, *t;
942
Dave Airlie40d9b042014-10-20 16:29:33 +1000943 if (connector->tile_group) {
944 drm_mode_put_tile_group(dev, connector->tile_group);
945 connector->tile_group = NULL;
946 }
947
Dave Airlief453ba02008-11-07 14:05:41 -0800948 list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
949 drm_mode_remove(connector, mode);
950
951 list_for_each_entry_safe(mode, t, &connector->modes, head)
952 drm_mode_remove(connector, mode);
953
Ilia Mirkinb21e3af2013-08-07 22:34:48 -0400954 ida_remove(&drm_connector_enum_list[connector->connector_type].ida,
955 connector->connector_type_id);
956
Boris Brezillonb5571e92014-07-22 12:09:10 +0200957 kfree(connector->display_info.bus_formats);
Dave Airlief453ba02008-11-07 14:05:41 -0800958 drm_mode_object_put(dev, &connector->base);
Jani Nikula2abdd312014-05-14 16:58:19 +0300959 kfree(connector->name);
960 connector->name = NULL;
Dave Airlief453ba02008-11-07 14:05:41 -0800961 list_del(&connector->head);
Joonyoung Shim6380c502011-08-27 02:06:21 +0000962 dev->mode_config.num_connector--;
Thierry Reding3009c032014-11-25 12:09:49 +0100963
964 WARN_ON(connector->state && !connector->funcs->atomic_destroy_state);
965 if (connector->state && connector->funcs->atomic_destroy_state)
966 connector->funcs->atomic_destroy_state(connector,
967 connector->state);
Thierry Redinga18c0af2014-12-10 11:38:49 +0100968
969 memset(connector, 0, sizeof(*connector));
Dave Airlief453ba02008-11-07 14:05:41 -0800970}
971EXPORT_SYMBOL(drm_connector_cleanup);
972
Daniel Vetterc8e32cc2014-03-10 21:33:02 +0100973/**
Daniel Vetter10f637b2014-07-29 13:47:11 +0200974 * drm_connector_index - find the index of a registered connector
975 * @connector: connector to find index for
976 *
977 * Given a registered connector, return the index of that connector within a DRM
978 * device's list of connectors.
979 */
980unsigned int drm_connector_index(struct drm_connector *connector)
981{
982 unsigned int index = 0;
983 struct drm_connector *tmp;
Daniel Vetterc7eb76f2014-11-19 18:38:06 +0100984 struct drm_mode_config *config = &connector->dev->mode_config;
985
986 WARN_ON(!drm_modeset_is_locked(&config->connection_mutex));
Daniel Vetter10f637b2014-07-29 13:47:11 +0200987
988 list_for_each_entry(tmp, &connector->dev->mode_config.connector_list, head) {
989 if (tmp == connector)
990 return index;
991
992 index++;
993 }
994
995 BUG();
996}
997EXPORT_SYMBOL(drm_connector_index);
998
999/**
Thomas Wood34ea3d32014-05-29 16:57:41 +01001000 * drm_connector_register - register a connector
1001 * @connector: the connector to register
1002 *
1003 * Register userspace interfaces for a connector
1004 *
1005 * Returns:
1006 * Zero on success, error code on failure.
1007 */
1008int drm_connector_register(struct drm_connector *connector)
1009{
Thomas Wood30f65702014-06-18 17:52:32 +01001010 int ret;
1011
Dave Airlie2ee39452014-07-24 11:53:45 +10001012 drm_mode_object_register(connector->dev, &connector->base);
1013
Thomas Wood30f65702014-06-18 17:52:32 +01001014 ret = drm_sysfs_connector_add(connector);
1015 if (ret)
1016 return ret;
1017
1018 ret = drm_debugfs_connector_add(connector);
1019 if (ret) {
1020 drm_sysfs_connector_remove(connector);
1021 return ret;
1022 }
1023
1024 return 0;
Thomas Wood34ea3d32014-05-29 16:57:41 +01001025}
1026EXPORT_SYMBOL(drm_connector_register);
1027
1028/**
1029 * drm_connector_unregister - unregister a connector
1030 * @connector: the connector to unregister
1031 *
1032 * Unregister userspace interfaces for a connector
1033 */
1034void drm_connector_unregister(struct drm_connector *connector)
1035{
1036 drm_sysfs_connector_remove(connector);
Thomas Wood30f65702014-06-18 17:52:32 +01001037 drm_debugfs_connector_remove(connector);
Thomas Wood34ea3d32014-05-29 16:57:41 +01001038}
1039EXPORT_SYMBOL(drm_connector_unregister);
1040
1041
1042/**
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01001043 * drm_connector_unplug_all - unregister connector userspace interfaces
1044 * @dev: drm device
1045 *
1046 * This function unregisters all connector userspace interfaces in sysfs. Should
1047 * be call when the device is disconnected, e.g. from an usb driver's
1048 * ->disconnect callback.
1049 */
Dave Airliecbc7e222012-02-20 14:16:40 +00001050void drm_connector_unplug_all(struct drm_device *dev)
1051{
1052 struct drm_connector *connector;
1053
1054 /* taking the mode config mutex ends up in a clash with sysfs */
1055 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
Thomas Wood34ea3d32014-05-29 16:57:41 +01001056 drm_connector_unregister(connector);
Dave Airliecbc7e222012-02-20 14:16:40 +00001057
1058}
1059EXPORT_SYMBOL(drm_connector_unplug_all);
1060
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01001061/**
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01001062 * drm_encoder_init - Init a preallocated encoder
1063 * @dev: drm device
1064 * @encoder: the encoder to init
1065 * @funcs: callbacks for this encoder
1066 * @encoder_type: user visible type of the encoder
1067 *
1068 * Initialises a preallocated encoder. Encoder should be
1069 * subclassed as part of driver encoder objects.
1070 *
1071 * Returns:
1072 * Zero on success, error code on failure.
1073 */
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +02001074int drm_encoder_init(struct drm_device *dev,
Dave Airliecbc7e222012-02-20 14:16:40 +00001075 struct drm_encoder *encoder,
1076 const struct drm_encoder_funcs *funcs,
1077 int encoder_type)
Dave Airlief453ba02008-11-07 14:05:41 -08001078{
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +02001079 int ret;
1080
Daniel Vetter84849902012-12-02 00:28:11 +01001081 drm_modeset_lock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08001082
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +02001083 ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
1084 if (ret)
Jani Nikulae5748942014-05-14 16:58:20 +03001085 goto out_unlock;
Dave Airlief453ba02008-11-07 14:05:41 -08001086
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +02001087 encoder->dev = dev;
Dave Airlief453ba02008-11-07 14:05:41 -08001088 encoder->encoder_type = encoder_type;
1089 encoder->funcs = funcs;
Jani Nikulae5748942014-05-14 16:58:20 +03001090 encoder->name = kasprintf(GFP_KERNEL, "%s-%d",
1091 drm_encoder_enum_list[encoder_type].name,
1092 encoder->base.id);
1093 if (!encoder->name) {
1094 ret = -ENOMEM;
1095 goto out_put;
1096 }
Dave Airlief453ba02008-11-07 14:05:41 -08001097
1098 list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
1099 dev->mode_config.num_encoder++;
1100
Jani Nikulae5748942014-05-14 16:58:20 +03001101out_put:
1102 if (ret)
1103 drm_mode_object_put(dev, &encoder->base);
1104
1105out_unlock:
Daniel Vetter84849902012-12-02 00:28:11 +01001106 drm_modeset_unlock_all(dev);
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +02001107
1108 return ret;
Dave Airlief453ba02008-11-07 14:05:41 -08001109}
1110EXPORT_SYMBOL(drm_encoder_init);
1111
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01001112/**
1113 * drm_encoder_cleanup - cleans up an initialised encoder
1114 * @encoder: encoder to cleanup
1115 *
1116 * Cleans up the encoder but doesn't free the object.
1117 */
Dave Airlief453ba02008-11-07 14:05:41 -08001118void drm_encoder_cleanup(struct drm_encoder *encoder)
1119{
1120 struct drm_device *dev = encoder->dev;
Thierry Reding4dfd9092014-12-10 13:03:34 +01001121
Daniel Vetter84849902012-12-02 00:28:11 +01001122 drm_modeset_lock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08001123 drm_mode_object_put(dev, &encoder->base);
Jani Nikulae5748942014-05-14 16:58:20 +03001124 kfree(encoder->name);
Dave Airlief453ba02008-11-07 14:05:41 -08001125 list_del(&encoder->head);
Joonyoung Shim6380c502011-08-27 02:06:21 +00001126 dev->mode_config.num_encoder--;
Daniel Vetter84849902012-12-02 00:28:11 +01001127 drm_modeset_unlock_all(dev);
Thierry Redinga18c0af2014-12-10 11:38:49 +01001128
1129 memset(encoder, 0, sizeof(*encoder));
Dave Airlief453ba02008-11-07 14:05:41 -08001130}
1131EXPORT_SYMBOL(drm_encoder_cleanup);
1132
Ville Syrjälä35f2c3a2013-06-05 15:39:56 +03001133/**
Matt Roperdc415ff2014-04-01 15:22:36 -07001134 * drm_universal_plane_init - Initialize a new universal plane object
Ville Syrjälä35f2c3a2013-06-05 15:39:56 +03001135 * @dev: DRM device
1136 * @plane: plane object to init
1137 * @possible_crtcs: bitmask of possible CRTCs
1138 * @funcs: callbacks for the new plane
1139 * @formats: array of supported formats (%DRM_FORMAT_*)
1140 * @format_count: number of elements in @formats
Matt Roperdc415ff2014-04-01 15:22:36 -07001141 * @type: type of plane (overlay, primary, cursor)
Ville Syrjälä35f2c3a2013-06-05 15:39:56 +03001142 *
Matt Roperdc415ff2014-04-01 15:22:36 -07001143 * Initializes a plane object of type @type.
Ville Syrjälä35f2c3a2013-06-05 15:39:56 +03001144 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01001145 * Returns:
Ville Syrjälä35f2c3a2013-06-05 15:39:56 +03001146 * Zero on success, error code on failure.
1147 */
Matt Roperdc415ff2014-04-01 15:22:36 -07001148int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane,
1149 unsigned long possible_crtcs,
1150 const struct drm_plane_funcs *funcs,
1151 const uint32_t *formats, uint32_t format_count,
1152 enum drm_plane_type type)
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001153{
Rob Clark6b4959f2014-12-18 16:01:53 -05001154 struct drm_mode_config *config = &dev->mode_config;
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +02001155 int ret;
1156
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +02001157 ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
1158 if (ret)
Daniel Vetterbaf698b2014-11-12 11:59:47 +01001159 return ret;
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +02001160
Daniel Vetter4d02e2d2014-11-11 10:12:00 +01001161 drm_modeset_lock_init(&plane->mutex);
1162
Rob Clark4d939142012-05-17 02:23:27 -06001163 plane->base.properties = &plane->properties;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001164 plane->dev = dev;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001165 plane->funcs = funcs;
Thierry Reding2f6c5382014-12-10 13:03:36 +01001166 plane->format_types = kmalloc_array(format_count, sizeof(uint32_t),
1167 GFP_KERNEL);
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001168 if (!plane->format_types) {
1169 DRM_DEBUG_KMS("out of memory when allocating plane\n");
1170 drm_mode_object_put(dev, &plane->base);
Daniel Vetterbaf698b2014-11-12 11:59:47 +01001171 return -ENOMEM;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001172 }
1173
Jesse Barnes308e5bc2011-11-14 14:51:28 -08001174 memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001175 plane->format_count = format_count;
1176 plane->possible_crtcs = possible_crtcs;
Matt Roperdc415ff2014-04-01 15:22:36 -07001177 plane->type = type;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001178
Rob Clark6b4959f2014-12-18 16:01:53 -05001179 list_add_tail(&plane->head, &config->plane_list);
1180 config->num_total_plane++;
Matt Roperdc415ff2014-04-01 15:22:36 -07001181 if (plane->type == DRM_PLANE_TYPE_OVERLAY)
Rob Clark6b4959f2014-12-18 16:01:53 -05001182 config->num_overlay_plane++;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001183
Rob Clark9922ab52014-04-01 20:16:57 -04001184 drm_object_attach_property(&plane->base,
Rob Clark6b4959f2014-12-18 16:01:53 -05001185 config->plane_type_property,
Rob Clark9922ab52014-04-01 20:16:57 -04001186 plane->type);
1187
Rob Clark6b4959f2014-12-18 16:01:53 -05001188 if (drm_core_check_feature(dev, DRIVER_ATOMIC)) {
1189 drm_object_attach_property(&plane->base, config->prop_fb_id, 0);
1190 drm_object_attach_property(&plane->base, config->prop_crtc_id, 0);
1191 drm_object_attach_property(&plane->base, config->prop_crtc_x, 0);
1192 drm_object_attach_property(&plane->base, config->prop_crtc_y, 0);
1193 drm_object_attach_property(&plane->base, config->prop_crtc_w, 0);
1194 drm_object_attach_property(&plane->base, config->prop_crtc_h, 0);
1195 drm_object_attach_property(&plane->base, config->prop_src_x, 0);
1196 drm_object_attach_property(&plane->base, config->prop_src_y, 0);
1197 drm_object_attach_property(&plane->base, config->prop_src_w, 0);
1198 drm_object_attach_property(&plane->base, config->prop_src_h, 0);
1199 }
1200
Daniel Vetterbaf698b2014-11-12 11:59:47 +01001201 return 0;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001202}
Matt Roperdc415ff2014-04-01 15:22:36 -07001203EXPORT_SYMBOL(drm_universal_plane_init);
1204
1205/**
1206 * drm_plane_init - Initialize a legacy plane
1207 * @dev: DRM device
1208 * @plane: plane object to init
1209 * @possible_crtcs: bitmask of possible CRTCs
1210 * @funcs: callbacks for the new plane
1211 * @formats: array of supported formats (%DRM_FORMAT_*)
1212 * @format_count: number of elements in @formats
1213 * @is_primary: plane type (primary vs overlay)
1214 *
1215 * Legacy API to initialize a DRM plane.
1216 *
1217 * New drivers should call drm_universal_plane_init() instead.
1218 *
1219 * Returns:
1220 * Zero on success, error code on failure.
1221 */
1222int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
1223 unsigned long possible_crtcs,
1224 const struct drm_plane_funcs *funcs,
1225 const uint32_t *formats, uint32_t format_count,
1226 bool is_primary)
1227{
1228 enum drm_plane_type type;
1229
1230 type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY;
1231 return drm_universal_plane_init(dev, plane, possible_crtcs, funcs,
1232 formats, format_count, type);
1233}
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001234EXPORT_SYMBOL(drm_plane_init);
1235
Ville Syrjälä35f2c3a2013-06-05 15:39:56 +03001236/**
1237 * drm_plane_cleanup - Clean up the core plane usage
1238 * @plane: plane to cleanup
1239 *
1240 * This function cleans up @plane and removes it from the DRM mode setting
1241 * core. Note that the function does *not* free the plane structure itself,
1242 * this is the responsibility of the caller.
1243 */
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001244void drm_plane_cleanup(struct drm_plane *plane)
1245{
1246 struct drm_device *dev = plane->dev;
1247
Daniel Vetter84849902012-12-02 00:28:11 +01001248 drm_modeset_lock_all(dev);
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001249 kfree(plane->format_types);
1250 drm_mode_object_put(dev, &plane->base);
Matt Roperdc415ff2014-04-01 15:22:36 -07001251
1252 BUG_ON(list_empty(&plane->head));
1253
1254 list_del(&plane->head);
1255 dev->mode_config.num_total_plane--;
1256 if (plane->type == DRM_PLANE_TYPE_OVERLAY)
1257 dev->mode_config.num_overlay_plane--;
Daniel Vetter84849902012-12-02 00:28:11 +01001258 drm_modeset_unlock_all(dev);
Thierry Reding3009c032014-11-25 12:09:49 +01001259
1260 WARN_ON(plane->state && !plane->funcs->atomic_destroy_state);
1261 if (plane->state && plane->funcs->atomic_destroy_state)
1262 plane->funcs->atomic_destroy_state(plane, plane->state);
Thierry Redinga18c0af2014-12-10 11:38:49 +01001263
1264 memset(plane, 0, sizeof(*plane));
Jesse Barnes8cf5c912011-11-14 14:51:27 -08001265}
1266EXPORT_SYMBOL(drm_plane_cleanup);
1267
Ville Syrjälä35f2c3a2013-06-05 15:39:56 +03001268/**
Daniel Vetter10f637b2014-07-29 13:47:11 +02001269 * drm_plane_index - find the index of a registered plane
1270 * @plane: plane to find index for
1271 *
1272 * Given a registered plane, return the index of that CRTC within a DRM
1273 * device's list of planes.
1274 */
1275unsigned int drm_plane_index(struct drm_plane *plane)
1276{
1277 unsigned int index = 0;
1278 struct drm_plane *tmp;
1279
1280 list_for_each_entry(tmp, &plane->dev->mode_config.plane_list, head) {
1281 if (tmp == plane)
1282 return index;
1283
1284 index++;
1285 }
1286
1287 BUG();
1288}
1289EXPORT_SYMBOL(drm_plane_index);
1290
1291/**
Ville Syrjälä35f2c3a2013-06-05 15:39:56 +03001292 * drm_plane_force_disable - Forcibly disable a plane
1293 * @plane: plane to disable
1294 *
1295 * Forces the plane to be disabled.
1296 *
1297 * Used when the plane's current framebuffer is destroyed,
1298 * and when restoring fbdev mode.
1299 */
Ville Syrjälä9125e612013-06-03 16:10:40 +03001300void drm_plane_force_disable(struct drm_plane *plane)
1301{
1302 int ret;
1303
Daniel Vetter3d30a592014-07-27 13:42:42 +02001304 if (!plane->fb)
Ville Syrjälä9125e612013-06-03 16:10:40 +03001305 return;
1306
Daniel Vetter3d30a592014-07-27 13:42:42 +02001307 plane->old_fb = plane->fb;
Ville Syrjälä9125e612013-06-03 16:10:40 +03001308 ret = plane->funcs->disable_plane(plane);
Daniel Vetter731cce42014-04-23 10:24:11 +02001309 if (ret) {
Ville Syrjälä9125e612013-06-03 16:10:40 +03001310 DRM_ERROR("failed to disable plane with busy fb\n");
Daniel Vetter3d30a592014-07-27 13:42:42 +02001311 plane->old_fb = NULL;
Daniel Vetter731cce42014-04-23 10:24:11 +02001312 return;
1313 }
Ville Syrjälä9125e612013-06-03 16:10:40 +03001314 /* disconnect the plane from the fb and crtc: */
Daniel Vetter220dd2b2015-02-27 12:58:13 +01001315 drm_framebuffer_unreference(plane->old_fb);
Daniel Vetter3d30a592014-07-27 13:42:42 +02001316 plane->old_fb = NULL;
Ville Syrjälä9125e612013-06-03 16:10:40 +03001317 plane->fb = NULL;
1318 plane->crtc = NULL;
1319}
1320EXPORT_SYMBOL(drm_plane_force_disable);
1321
Rob Clark6b4959f2014-12-18 16:01:53 -05001322static int drm_mode_create_standard_properties(struct drm_device *dev)
Dave Airlief453ba02008-11-07 14:05:41 -08001323{
Rob Clark356af0e2014-12-18 16:01:52 -05001324 struct drm_property *prop;
Dave Airlief453ba02008-11-07 14:05:41 -08001325
1326 /*
1327 * Standard properties (apply to all connectors)
1328 */
Rob Clark356af0e2014-12-18 16:01:52 -05001329 prop = drm_property_create(dev, DRM_MODE_PROP_BLOB |
Dave Airlief453ba02008-11-07 14:05:41 -08001330 DRM_MODE_PROP_IMMUTABLE,
1331 "EDID", 0);
Rob Clark356af0e2014-12-18 16:01:52 -05001332 if (!prop)
1333 return -ENOMEM;
1334 dev->mode_config.edid_property = prop;
Dave Airlief453ba02008-11-07 14:05:41 -08001335
Rob Clark356af0e2014-12-18 16:01:52 -05001336 prop = drm_property_create_enum(dev, 0,
Sascha Hauer4a67d392012-02-06 10:58:17 +01001337 "DPMS", drm_dpms_enum_list,
1338 ARRAY_SIZE(drm_dpms_enum_list));
Rob Clark356af0e2014-12-18 16:01:52 -05001339 if (!prop)
1340 return -ENOMEM;
1341 dev->mode_config.dpms_property = prop;
Dave Airlief453ba02008-11-07 14:05:41 -08001342
Rob Clark356af0e2014-12-18 16:01:52 -05001343 prop = drm_property_create(dev,
1344 DRM_MODE_PROP_BLOB |
1345 DRM_MODE_PROP_IMMUTABLE,
1346 "PATH", 0);
1347 if (!prop)
1348 return -ENOMEM;
1349 dev->mode_config.path_property = prop;
Dave Airlie43aba7e2014-06-05 14:01:31 +10001350
Rob Clark356af0e2014-12-18 16:01:52 -05001351 prop = drm_property_create(dev,
1352 DRM_MODE_PROP_BLOB |
1353 DRM_MODE_PROP_IMMUTABLE,
1354 "TILE", 0);
1355 if (!prop)
1356 return -ENOMEM;
1357 dev->mode_config.tile_property = prop;
Dave Airlie6f134d72014-10-20 16:30:50 +10001358
Rob Clark6b4959f2014-12-18 16:01:53 -05001359 prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
Rob Clark9922ab52014-04-01 20:16:57 -04001360 "type", drm_plane_type_enum_list,
1361 ARRAY_SIZE(drm_plane_type_enum_list));
Rob Clark6b4959f2014-12-18 16:01:53 -05001362 if (!prop)
1363 return -ENOMEM;
1364 dev->mode_config.plane_type_property = prop;
1365
1366 prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
1367 "SRC_X", 0, UINT_MAX);
1368 if (!prop)
1369 return -ENOMEM;
1370 dev->mode_config.prop_src_x = prop;
1371
1372 prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
1373 "SRC_Y", 0, UINT_MAX);
1374 if (!prop)
1375 return -ENOMEM;
1376 dev->mode_config.prop_src_y = prop;
1377
1378 prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
1379 "SRC_W", 0, UINT_MAX);
1380 if (!prop)
1381 return -ENOMEM;
1382 dev->mode_config.prop_src_w = prop;
1383
1384 prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
1385 "SRC_H", 0, UINT_MAX);
1386 if (!prop)
1387 return -ENOMEM;
1388 dev->mode_config.prop_src_h = prop;
1389
1390 prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC,
1391 "CRTC_X", INT_MIN, INT_MAX);
1392 if (!prop)
1393 return -ENOMEM;
1394 dev->mode_config.prop_crtc_x = prop;
1395
1396 prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC,
1397 "CRTC_Y", INT_MIN, INT_MAX);
1398 if (!prop)
1399 return -ENOMEM;
1400 dev->mode_config.prop_crtc_y = prop;
1401
1402 prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
1403 "CRTC_W", 0, INT_MAX);
1404 if (!prop)
1405 return -ENOMEM;
1406 dev->mode_config.prop_crtc_w = prop;
1407
1408 prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
1409 "CRTC_H", 0, INT_MAX);
1410 if (!prop)
1411 return -ENOMEM;
1412 dev->mode_config.prop_crtc_h = prop;
1413
1414 prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC,
1415 "FB_ID", DRM_MODE_OBJECT_FB);
1416 if (!prop)
1417 return -ENOMEM;
1418 dev->mode_config.prop_fb_id = prop;
1419
1420 prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC,
1421 "CRTC_ID", DRM_MODE_OBJECT_CRTC);
1422 if (!prop)
1423 return -ENOMEM;
1424 dev->mode_config.prop_crtc_id = prop;
Rob Clark9922ab52014-04-01 20:16:57 -04001425
Daniel Vettereab3bbe2015-01-22 16:36:21 +01001426 prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC,
1427 "ACTIVE");
1428 if (!prop)
1429 return -ENOMEM;
1430 dev->mode_config.prop_active = prop;
1431
Rob Clark9922ab52014-04-01 20:16:57 -04001432 return 0;
1433}
1434
Dave Airlief453ba02008-11-07 14:05:41 -08001435/**
1436 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
1437 * @dev: DRM device
1438 *
1439 * Called by a driver the first time a DVI-I connector is made.
1440 */
1441int drm_mode_create_dvi_i_properties(struct drm_device *dev)
1442{
1443 struct drm_property *dvi_i_selector;
1444 struct drm_property *dvi_i_subconnector;
Dave Airlief453ba02008-11-07 14:05:41 -08001445
1446 if (dev->mode_config.dvi_i_select_subconnector_property)
1447 return 0;
1448
1449 dvi_i_selector =
Sascha Hauer4a67d392012-02-06 10:58:17 +01001450 drm_property_create_enum(dev, 0,
Dave Airlief453ba02008-11-07 14:05:41 -08001451 "select subconnector",
Sascha Hauer4a67d392012-02-06 10:58:17 +01001452 drm_dvi_i_select_enum_list,
Dave Airlief453ba02008-11-07 14:05:41 -08001453 ARRAY_SIZE(drm_dvi_i_select_enum_list));
Dave Airlief453ba02008-11-07 14:05:41 -08001454 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
1455
Sascha Hauer4a67d392012-02-06 10:58:17 +01001456 dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
Dave Airlief453ba02008-11-07 14:05:41 -08001457 "subconnector",
Sascha Hauer4a67d392012-02-06 10:58:17 +01001458 drm_dvi_i_subconnector_enum_list,
Dave Airlief453ba02008-11-07 14:05:41 -08001459 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
Dave Airlief453ba02008-11-07 14:05:41 -08001460 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
1461
1462 return 0;
1463}
1464EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
1465
1466/**
1467 * drm_create_tv_properties - create TV specific connector properties
1468 * @dev: DRM device
1469 * @num_modes: number of different TV formats (modes) supported
1470 * @modes: array of pointers to strings containing name of each format
1471 *
1472 * Called by a driver's TV initialization routine, this function creates
1473 * the TV specific connector properties for a given device. Caller is
1474 * responsible for allocating a list of format names and passing them to
1475 * this routine.
1476 */
Thierry Reding2f763312014-10-13 12:45:57 +02001477int drm_mode_create_tv_properties(struct drm_device *dev,
1478 unsigned int num_modes,
Dave Airlief453ba02008-11-07 14:05:41 -08001479 char *modes[])
1480{
1481 struct drm_property *tv_selector;
1482 struct drm_property *tv_subconnector;
Thierry Reding2f763312014-10-13 12:45:57 +02001483 unsigned int i;
Dave Airlief453ba02008-11-07 14:05:41 -08001484
1485 if (dev->mode_config.tv_select_subconnector_property)
1486 return 0;
1487
1488 /*
1489 * Basic connector properties
1490 */
Sascha Hauer4a67d392012-02-06 10:58:17 +01001491 tv_selector = drm_property_create_enum(dev, 0,
Dave Airlief453ba02008-11-07 14:05:41 -08001492 "select subconnector",
Sascha Hauer4a67d392012-02-06 10:58:17 +01001493 drm_tv_select_enum_list,
Dave Airlief453ba02008-11-07 14:05:41 -08001494 ARRAY_SIZE(drm_tv_select_enum_list));
Dave Airlief453ba02008-11-07 14:05:41 -08001495 dev->mode_config.tv_select_subconnector_property = tv_selector;
1496
1497 tv_subconnector =
Sascha Hauer4a67d392012-02-06 10:58:17 +01001498 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
1499 "subconnector",
1500 drm_tv_subconnector_enum_list,
Dave Airlief453ba02008-11-07 14:05:41 -08001501 ARRAY_SIZE(drm_tv_subconnector_enum_list));
Dave Airlief453ba02008-11-07 14:05:41 -08001502 dev->mode_config.tv_subconnector_property = tv_subconnector;
1503
1504 /*
1505 * Other, TV specific properties: margins & TV modes.
1506 */
1507 dev->mode_config.tv_left_margin_property =
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01001508 drm_property_create_range(dev, 0, "left margin", 0, 100);
Dave Airlief453ba02008-11-07 14:05:41 -08001509
1510 dev->mode_config.tv_right_margin_property =
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01001511 drm_property_create_range(dev, 0, "right margin", 0, 100);
Dave Airlief453ba02008-11-07 14:05:41 -08001512
1513 dev->mode_config.tv_top_margin_property =
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01001514 drm_property_create_range(dev, 0, "top margin", 0, 100);
Dave Airlief453ba02008-11-07 14:05:41 -08001515
1516 dev->mode_config.tv_bottom_margin_property =
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01001517 drm_property_create_range(dev, 0, "bottom margin", 0, 100);
Dave Airlief453ba02008-11-07 14:05:41 -08001518
1519 dev->mode_config.tv_mode_property =
1520 drm_property_create(dev, DRM_MODE_PROP_ENUM,
1521 "mode", num_modes);
1522 for (i = 0; i < num_modes; i++)
1523 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
1524 i, modes[i]);
1525
Francisco Jerezb6b79022009-08-02 04:19:20 +02001526 dev->mode_config.tv_brightness_property =
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01001527 drm_property_create_range(dev, 0, "brightness", 0, 100);
Francisco Jerezb6b79022009-08-02 04:19:20 +02001528
1529 dev->mode_config.tv_contrast_property =
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01001530 drm_property_create_range(dev, 0, "contrast", 0, 100);
Francisco Jerezb6b79022009-08-02 04:19:20 +02001531
1532 dev->mode_config.tv_flicker_reduction_property =
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01001533 drm_property_create_range(dev, 0, "flicker reduction", 0, 100);
Francisco Jerezb6b79022009-08-02 04:19:20 +02001534
Francisco Jereza75f0232009-08-12 02:30:10 +02001535 dev->mode_config.tv_overscan_property =
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01001536 drm_property_create_range(dev, 0, "overscan", 0, 100);
Francisco Jereza75f0232009-08-12 02:30:10 +02001537
1538 dev->mode_config.tv_saturation_property =
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01001539 drm_property_create_range(dev, 0, "saturation", 0, 100);
Francisco Jereza75f0232009-08-12 02:30:10 +02001540
1541 dev->mode_config.tv_hue_property =
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01001542 drm_property_create_range(dev, 0, "hue", 0, 100);
Francisco Jereza75f0232009-08-12 02:30:10 +02001543
Dave Airlief453ba02008-11-07 14:05:41 -08001544 return 0;
1545}
1546EXPORT_SYMBOL(drm_mode_create_tv_properties);
1547
1548/**
1549 * drm_mode_create_scaling_mode_property - create scaling mode property
1550 * @dev: DRM device
1551 *
1552 * Called by a driver the first time it's needed, must be attached to desired
1553 * connectors.
1554 */
1555int drm_mode_create_scaling_mode_property(struct drm_device *dev)
1556{
1557 struct drm_property *scaling_mode;
Dave Airlief453ba02008-11-07 14:05:41 -08001558
1559 if (dev->mode_config.scaling_mode_property)
1560 return 0;
1561
1562 scaling_mode =
Sascha Hauer4a67d392012-02-06 10:58:17 +01001563 drm_property_create_enum(dev, 0, "scaling mode",
1564 drm_scaling_mode_enum_list,
Dave Airlief453ba02008-11-07 14:05:41 -08001565 ARRAY_SIZE(drm_scaling_mode_enum_list));
Dave Airlief453ba02008-11-07 14:05:41 -08001566
1567 dev->mode_config.scaling_mode_property = scaling_mode;
1568
1569 return 0;
1570}
1571EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
1572
1573/**
Vandana Kannanff587e42014-06-11 10:46:48 +05301574 * drm_mode_create_aspect_ratio_property - create aspect ratio property
1575 * @dev: DRM device
1576 *
1577 * Called by a driver the first time it's needed, must be attached to desired
1578 * connectors.
1579 *
1580 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01001581 * Zero on success, negative errno on failure.
Vandana Kannanff587e42014-06-11 10:46:48 +05301582 */
1583int drm_mode_create_aspect_ratio_property(struct drm_device *dev)
1584{
1585 if (dev->mode_config.aspect_ratio_property)
1586 return 0;
1587
1588 dev->mode_config.aspect_ratio_property =
1589 drm_property_create_enum(dev, 0, "aspect ratio",
1590 drm_aspect_ratio_enum_list,
1591 ARRAY_SIZE(drm_aspect_ratio_enum_list));
1592
1593 if (dev->mode_config.aspect_ratio_property == NULL)
1594 return -ENOMEM;
1595
1596 return 0;
1597}
1598EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property);
1599
1600/**
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00001601 * drm_mode_create_dirty_property - create dirty property
1602 * @dev: DRM device
1603 *
1604 * Called by a driver the first time it's needed, must be attached to desired
1605 * connectors.
1606 */
1607int drm_mode_create_dirty_info_property(struct drm_device *dev)
1608{
1609 struct drm_property *dirty_info;
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00001610
1611 if (dev->mode_config.dirty_info_property)
1612 return 0;
1613
1614 dirty_info =
Sascha Hauer4a67d392012-02-06 10:58:17 +01001615 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00001616 "dirty",
Sascha Hauer4a67d392012-02-06 10:58:17 +01001617 drm_dirty_info_enum_list,
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00001618 ARRAY_SIZE(drm_dirty_info_enum_list));
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00001619 dev->mode_config.dirty_info_property = dirty_info;
1620
1621 return 0;
1622}
1623EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
1624
Dave Airlie5bb2bbf2014-11-10 10:18:15 +10001625/**
1626 * drm_mode_create_suggested_offset_properties - create suggests offset properties
1627 * @dev: DRM device
1628 *
1629 * Create the the suggested x/y offset property for connectors.
1630 */
1631int drm_mode_create_suggested_offset_properties(struct drm_device *dev)
1632{
1633 if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property)
1634 return 0;
1635
1636 dev->mode_config.suggested_x_property =
1637 drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff);
1638
1639 dev->mode_config.suggested_y_property =
1640 drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff);
1641
1642 if (dev->mode_config.suggested_x_property == NULL ||
1643 dev->mode_config.suggested_y_property == NULL)
1644 return -ENOMEM;
1645 return 0;
1646}
1647EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties);
1648
Ville Syrjäläea9cbb02013-04-25 20:09:20 +03001649static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
Dave Airlief453ba02008-11-07 14:05:41 -08001650{
1651 uint32_t total_objects = 0;
1652
1653 total_objects += dev->mode_config.num_crtc;
1654 total_objects += dev->mode_config.num_connector;
1655 total_objects += dev->mode_config.num_encoder;
1656
Thierry Redingbd3f0ff2014-12-10 13:03:35 +01001657 group->id_list = kcalloc(total_objects, sizeof(uint32_t), GFP_KERNEL);
Dave Airlief453ba02008-11-07 14:05:41 -08001658 if (!group->id_list)
1659 return -ENOMEM;
1660
1661 group->num_crtcs = 0;
1662 group->num_connectors = 0;
1663 group->num_encoders = 0;
1664 return 0;
1665}
1666
Dave Airliead222792014-05-02 13:22:19 +10001667void drm_mode_group_destroy(struct drm_mode_group *group)
1668{
1669 kfree(group->id_list);
1670 group->id_list = NULL;
1671}
1672
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01001673/*
1674 * NOTE: Driver's shouldn't ever call drm_mode_group_init_legacy_group - it is
1675 * the drm core's responsibility to set up mode control groups.
1676 */
Dave Airlief453ba02008-11-07 14:05:41 -08001677int drm_mode_group_init_legacy_group(struct drm_device *dev,
1678 struct drm_mode_group *group)
1679{
1680 struct drm_crtc *crtc;
1681 struct drm_encoder *encoder;
1682 struct drm_connector *connector;
1683 int ret;
1684
Thierry Reding0cc0b222014-12-10 13:03:37 +01001685 ret = drm_mode_group_init(dev, group);
1686 if (ret)
Dave Airlief453ba02008-11-07 14:05:41 -08001687 return ret;
1688
1689 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
1690 group->id_list[group->num_crtcs++] = crtc->base.id;
1691
1692 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
1693 group->id_list[group->num_crtcs + group->num_encoders++] =
1694 encoder->base.id;
1695
1696 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
1697 group->id_list[group->num_crtcs + group->num_encoders +
1698 group->num_connectors++] = connector->base.id;
1699
1700 return 0;
1701}
Dave Airlie9c1dfc52012-03-20 06:59:29 +00001702EXPORT_SYMBOL(drm_mode_group_init_legacy_group);
Dave Airlief453ba02008-11-07 14:05:41 -08001703
Dave Airlie2390cd12014-06-05 14:01:29 +10001704void drm_reinit_primary_mode_group(struct drm_device *dev)
1705{
1706 drm_modeset_lock_all(dev);
1707 drm_mode_group_destroy(&dev->primary->mode_group);
1708 drm_mode_group_init_legacy_group(dev, &dev->primary->mode_group);
1709 drm_modeset_unlock_all(dev);
1710}
1711EXPORT_SYMBOL(drm_reinit_primary_mode_group);
1712
Dave Airlief453ba02008-11-07 14:05:41 -08001713/**
Dave Airlief453ba02008-11-07 14:05:41 -08001714 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1715 * @out: drm_mode_modeinfo struct to return to the user
1716 * @in: drm_display_mode to use
1717 *
Dave Airlief453ba02008-11-07 14:05:41 -08001718 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1719 * the user.
1720 */
Ville Syrjälä93bbf6d2012-03-13 12:35:47 +02001721static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
1722 const struct drm_display_mode *in)
Dave Airlief453ba02008-11-07 14:05:41 -08001723{
Ville Syrjäläe36fae32012-03-13 12:35:40 +02001724 WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX ||
1725 in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX ||
1726 in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX ||
1727 in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX ||
1728 in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX,
1729 "timing values too large for mode info\n");
1730
Dave Airlief453ba02008-11-07 14:05:41 -08001731 out->clock = in->clock;
1732 out->hdisplay = in->hdisplay;
1733 out->hsync_start = in->hsync_start;
1734 out->hsync_end = in->hsync_end;
1735 out->htotal = in->htotal;
1736 out->hskew = in->hskew;
1737 out->vdisplay = in->vdisplay;
1738 out->vsync_start = in->vsync_start;
1739 out->vsync_end = in->vsync_end;
1740 out->vtotal = in->vtotal;
1741 out->vscan = in->vscan;
1742 out->vrefresh = in->vrefresh;
1743 out->flags = in->flags;
1744 out->type = in->type;
1745 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1746 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1747}
1748
1749/**
Marc-André Lureau74afee72013-10-18 16:11:27 +02001750 * drm_crtc_convert_umode - convert a modeinfo into a drm_display_mode
Dave Airlief453ba02008-11-07 14:05:41 -08001751 * @out: drm_display_mode to return to the user
1752 * @in: drm_mode_modeinfo to use
1753 *
Dave Airlief453ba02008-11-07 14:05:41 -08001754 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1755 * the caller.
Ville Syrjälä90367bf2012-03-13 12:35:44 +02001756 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01001757 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01001758 * Zero on success, negative errno on failure.
Dave Airlief453ba02008-11-07 14:05:41 -08001759 */
Ville Syrjälä93bbf6d2012-03-13 12:35:47 +02001760static int drm_crtc_convert_umode(struct drm_display_mode *out,
1761 const struct drm_mode_modeinfo *in)
Dave Airlief453ba02008-11-07 14:05:41 -08001762{
Ville Syrjälä90367bf2012-03-13 12:35:44 +02001763 if (in->clock > INT_MAX || in->vrefresh > INT_MAX)
1764 return -ERANGE;
1765
Damien Lespiau5848ad42013-09-27 12:11:50 +01001766 if ((in->flags & DRM_MODE_FLAG_3D_MASK) > DRM_MODE_FLAG_3D_MAX)
1767 return -EINVAL;
1768
Dave Airlief453ba02008-11-07 14:05:41 -08001769 out->clock = in->clock;
1770 out->hdisplay = in->hdisplay;
1771 out->hsync_start = in->hsync_start;
1772 out->hsync_end = in->hsync_end;
1773 out->htotal = in->htotal;
1774 out->hskew = in->hskew;
1775 out->vdisplay = in->vdisplay;
1776 out->vsync_start = in->vsync_start;
1777 out->vsync_end = in->vsync_end;
1778 out->vtotal = in->vtotal;
1779 out->vscan = in->vscan;
1780 out->vrefresh = in->vrefresh;
1781 out->flags = in->flags;
1782 out->type = in->type;
1783 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1784 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
Ville Syrjälä90367bf2012-03-13 12:35:44 +02001785
1786 return 0;
Dave Airlief453ba02008-11-07 14:05:41 -08001787}
1788
1789/**
1790 * drm_mode_getresources - get graphics configuration
Daniel Vetter065a50ed2012-12-02 00:09:18 +01001791 * @dev: drm device for the ioctl
1792 * @data: data pointer for the ioctl
1793 * @file_priv: drm file for the ioctl call
Dave Airlief453ba02008-11-07 14:05:41 -08001794 *
Dave Airlief453ba02008-11-07 14:05:41 -08001795 * Construct a set of configuration description structures and return
1796 * them to the user, including CRTC, connector and framebuffer configuration.
1797 *
1798 * Called by the user via ioctl.
1799 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01001800 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01001801 * Zero on success, negative errno on failure.
Dave Airlief453ba02008-11-07 14:05:41 -08001802 */
1803int drm_mode_getresources(struct drm_device *dev, void *data,
1804 struct drm_file *file_priv)
1805{
1806 struct drm_mode_card_res *card_res = data;
1807 struct list_head *lh;
1808 struct drm_framebuffer *fb;
1809 struct drm_connector *connector;
1810 struct drm_crtc *crtc;
1811 struct drm_encoder *encoder;
1812 int ret = 0;
1813 int connector_count = 0;
1814 int crtc_count = 0;
1815 int fb_count = 0;
1816 int encoder_count = 0;
1817 int copied = 0, i;
1818 uint32_t __user *fb_id;
1819 uint32_t __user *crtc_id;
1820 uint32_t __user *connector_id;
1821 uint32_t __user *encoder_id;
1822 struct drm_mode_group *mode_group;
1823
Dave Airliefb3b06c2011-02-08 13:55:21 +10001824 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1825 return -EINVAL;
1826
Dave Airlief453ba02008-11-07 14:05:41 -08001827
Daniel Vetter4b096ac2012-12-10 21:19:18 +01001828 mutex_lock(&file_priv->fbs_lock);
Dave Airlief453ba02008-11-07 14:05:41 -08001829 /*
1830 * For the non-control nodes we need to limit the list of resources
1831 * by IDs in the group list for this node
1832 */
1833 list_for_each(lh, &file_priv->fbs)
1834 fb_count++;
1835
Daniel Vetter4b096ac2012-12-10 21:19:18 +01001836 /* handle this in 4 parts */
1837 /* FBs */
1838 if (card_res->count_fbs >= fb_count) {
1839 copied = 0;
1840 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1841 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
1842 if (put_user(fb->base.id, fb_id + copied)) {
1843 mutex_unlock(&file_priv->fbs_lock);
1844 return -EFAULT;
1845 }
1846 copied++;
1847 }
1848 }
1849 card_res->count_fbs = fb_count;
1850 mutex_unlock(&file_priv->fbs_lock);
1851
Daniel Vetterfcf93f62014-11-12 08:45:01 +01001852 /* mode_config.mutex protects the connector list against e.g. DP MST
1853 * connector hot-adding. CRTC/Plane lists are invariant. */
1854 mutex_lock(&dev->mode_config.mutex);
Thomas Hellstrom43683052014-03-13 11:07:44 +01001855 if (!drm_is_primary_client(file_priv)) {
Dave Airlief453ba02008-11-07 14:05:41 -08001856
Thomas Hellstrom09f308f2014-03-13 10:00:42 +01001857 mode_group = NULL;
Dave Airlief453ba02008-11-07 14:05:41 -08001858 list_for_each(lh, &dev->mode_config.crtc_list)
1859 crtc_count++;
1860
1861 list_for_each(lh, &dev->mode_config.connector_list)
1862 connector_count++;
1863
1864 list_for_each(lh, &dev->mode_config.encoder_list)
1865 encoder_count++;
1866 } else {
1867
Thomas Hellstrom09f308f2014-03-13 10:00:42 +01001868 mode_group = &file_priv->master->minor->mode_group;
Dave Airlief453ba02008-11-07 14:05:41 -08001869 crtc_count = mode_group->num_crtcs;
1870 connector_count = mode_group->num_connectors;
1871 encoder_count = mode_group->num_encoders;
1872 }
1873
1874 card_res->max_height = dev->mode_config.max_height;
1875 card_res->min_height = dev->mode_config.min_height;
1876 card_res->max_width = dev->mode_config.max_width;
1877 card_res->min_width = dev->mode_config.min_width;
1878
Dave Airlief453ba02008-11-07 14:05:41 -08001879 /* CRTCs */
1880 if (card_res->count_crtcs >= crtc_count) {
1881 copied = 0;
1882 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
Thomas Hellstrom09f308f2014-03-13 10:00:42 +01001883 if (!mode_group) {
Dave Airlief453ba02008-11-07 14:05:41 -08001884 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1885 head) {
Jerome Glisse94401062010-07-15 15:43:25 -04001886 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
Dave Airlief453ba02008-11-07 14:05:41 -08001887 if (put_user(crtc->base.id, crtc_id + copied)) {
1888 ret = -EFAULT;
1889 goto out;
1890 }
1891 copied++;
1892 }
1893 } else {
1894 for (i = 0; i < mode_group->num_crtcs; i++) {
1895 if (put_user(mode_group->id_list[i],
1896 crtc_id + copied)) {
1897 ret = -EFAULT;
1898 goto out;
1899 }
1900 copied++;
1901 }
1902 }
1903 }
1904 card_res->count_crtcs = crtc_count;
1905
1906 /* Encoders */
1907 if (card_res->count_encoders >= encoder_count) {
1908 copied = 0;
1909 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
Thomas Hellstrom09f308f2014-03-13 10:00:42 +01001910 if (!mode_group) {
Dave Airlief453ba02008-11-07 14:05:41 -08001911 list_for_each_entry(encoder,
1912 &dev->mode_config.encoder_list,
1913 head) {
Jerome Glisse94401062010-07-15 15:43:25 -04001914 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
Jani Nikula83a8cfd2014-06-03 14:56:22 +03001915 encoder->name);
Dave Airlief453ba02008-11-07 14:05:41 -08001916 if (put_user(encoder->base.id, encoder_id +
1917 copied)) {
1918 ret = -EFAULT;
1919 goto out;
1920 }
1921 copied++;
1922 }
1923 } else {
1924 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1925 if (put_user(mode_group->id_list[i],
1926 encoder_id + copied)) {
1927 ret = -EFAULT;
1928 goto out;
1929 }
1930 copied++;
1931 }
1932
1933 }
1934 }
1935 card_res->count_encoders = encoder_count;
1936
1937 /* Connectors */
1938 if (card_res->count_connectors >= connector_count) {
1939 copied = 0;
1940 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
Thomas Hellstrom09f308f2014-03-13 10:00:42 +01001941 if (!mode_group) {
Dave Airlief453ba02008-11-07 14:05:41 -08001942 list_for_each_entry(connector,
1943 &dev->mode_config.connector_list,
1944 head) {
Jerome Glisse94401062010-07-15 15:43:25 -04001945 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1946 connector->base.id,
Jani Nikula25933822014-06-03 14:56:20 +03001947 connector->name);
Dave Airlief453ba02008-11-07 14:05:41 -08001948 if (put_user(connector->base.id,
1949 connector_id + copied)) {
1950 ret = -EFAULT;
1951 goto out;
1952 }
1953 copied++;
1954 }
1955 } else {
1956 int start = mode_group->num_crtcs +
1957 mode_group->num_encoders;
1958 for (i = start; i < start + mode_group->num_connectors; i++) {
1959 if (put_user(mode_group->id_list[i],
1960 connector_id + copied)) {
1961 ret = -EFAULT;
1962 goto out;
1963 }
1964 copied++;
1965 }
1966 }
1967 }
1968 card_res->count_connectors = connector_count;
1969
Jerome Glisse94401062010-07-15 15:43:25 -04001970 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
Dave Airlief453ba02008-11-07 14:05:41 -08001971 card_res->count_connectors, card_res->count_encoders);
1972
1973out:
Daniel Vetterfcf93f62014-11-12 08:45:01 +01001974 mutex_unlock(&dev->mode_config.mutex);
Dave Airlief453ba02008-11-07 14:05:41 -08001975 return ret;
1976}
1977
1978/**
1979 * drm_mode_getcrtc - get CRTC configuration
Daniel Vetter065a50ed2012-12-02 00:09:18 +01001980 * @dev: drm device for the ioctl
1981 * @data: data pointer for the ioctl
1982 * @file_priv: drm file for the ioctl call
Dave Airlief453ba02008-11-07 14:05:41 -08001983 *
Dave Airlief453ba02008-11-07 14:05:41 -08001984 * Construct a CRTC configuration structure to return to the user.
1985 *
1986 * Called by the user via ioctl.
1987 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01001988 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01001989 * Zero on success, negative errno on failure.
Dave Airlief453ba02008-11-07 14:05:41 -08001990 */
1991int drm_mode_getcrtc(struct drm_device *dev,
1992 void *data, struct drm_file *file_priv)
1993{
1994 struct drm_mode_crtc *crtc_resp = data;
1995 struct drm_crtc *crtc;
Dave Airlief453ba02008-11-07 14:05:41 -08001996
Dave Airliefb3b06c2011-02-08 13:55:21 +10001997 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1998 return -EINVAL;
1999
Rob Clarka2b34e22013-10-05 16:36:52 -04002000 crtc = drm_crtc_find(dev, crtc_resp->crtc_id);
Daniel Vetterfcf93f62014-11-12 08:45:01 +01002001 if (!crtc)
2002 return -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08002003
Daniel Vetterfcf93f62014-11-12 08:45:01 +01002004 drm_modeset_lock_crtc(crtc, crtc->primary);
Dave Airlief453ba02008-11-07 14:05:41 -08002005 crtc_resp->gamma_size = crtc->gamma_size;
Matt Roperf4510a22014-04-01 15:22:40 -07002006 if (crtc->primary->fb)
2007 crtc_resp->fb_id = crtc->primary->fb->base.id;
Dave Airlief453ba02008-11-07 14:05:41 -08002008 else
2009 crtc_resp->fb_id = 0;
2010
Daniel Vetter31c946e2015-02-22 12:24:17 +01002011 if (crtc->state) {
2012 crtc_resp->x = crtc->primary->state->src_x >> 16;
2013 crtc_resp->y = crtc->primary->state->src_y >> 16;
2014 if (crtc->state->enable) {
2015 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->state->mode);
2016 crtc_resp->mode_valid = 1;
Dave Airlief453ba02008-11-07 14:05:41 -08002017
Daniel Vetter31c946e2015-02-22 12:24:17 +01002018 } else {
2019 crtc_resp->mode_valid = 0;
2020 }
Dave Airlief453ba02008-11-07 14:05:41 -08002021 } else {
Daniel Vetter31c946e2015-02-22 12:24:17 +01002022 crtc_resp->x = crtc->x;
2023 crtc_resp->y = crtc->y;
2024 if (crtc->enabled) {
2025 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
2026 crtc_resp->mode_valid = 1;
2027
2028 } else {
2029 crtc_resp->mode_valid = 0;
2030 }
Dave Airlief453ba02008-11-07 14:05:41 -08002031 }
Daniel Vetterfcf93f62014-11-12 08:45:01 +01002032 drm_modeset_unlock_crtc(crtc);
Dave Airlief453ba02008-11-07 14:05:41 -08002033
Daniel Vetterbaf698b2014-11-12 11:59:47 +01002034 return 0;
Dave Airlief453ba02008-11-07 14:05:41 -08002035}
2036
Damien Lespiau61d8e322013-09-25 16:45:22 +01002037static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode,
2038 const struct drm_file *file_priv)
2039{
2040 /*
2041 * If user-space hasn't configured the driver to expose the stereo 3D
2042 * modes, don't expose them.
2043 */
2044 if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode))
2045 return false;
2046
2047 return true;
2048}
2049
Daniel Vetterabd69c52014-11-25 23:50:05 +01002050static struct drm_encoder *drm_connector_get_encoder(struct drm_connector *connector)
2051{
2052 /* For atomic drivers only state objects are synchronously updated and
2053 * protected by modeset locks, so check those first. */
2054 if (connector->state)
2055 return connector->state->best_encoder;
2056 return connector->encoder;
2057}
2058
Rob Clark95cbf112014-12-18 16:01:49 -05002059/* helper for getconnector and getproperties ioctls */
Rob Clark88a48e22014-12-18 16:01:50 -05002060static int get_properties(struct drm_mode_object *obj, bool atomic,
Rob Clark95cbf112014-12-18 16:01:49 -05002061 uint32_t __user *prop_ptr, uint64_t __user *prop_values,
2062 uint32_t *arg_count_props)
2063{
Rob Clark88a48e22014-12-18 16:01:50 -05002064 int props_count;
2065 int i, ret, copied;
2066
2067 props_count = obj->properties->count;
2068 if (!atomic)
2069 props_count -= obj->properties->atomic_count;
Rob Clark95cbf112014-12-18 16:01:49 -05002070
2071 if ((*arg_count_props >= props_count) && props_count) {
Rob Clark88a48e22014-12-18 16:01:50 -05002072 for (i = 0, copied = 0; copied < props_count; i++) {
Rob Clark95cbf112014-12-18 16:01:49 -05002073 struct drm_property *prop = obj->properties->properties[i];
2074 uint64_t val;
2075
Rob Clark88a48e22014-12-18 16:01:50 -05002076 if ((prop->flags & DRM_MODE_PROP_ATOMIC) && !atomic)
2077 continue;
2078
Rob Clark95cbf112014-12-18 16:01:49 -05002079 ret = drm_object_property_get_value(obj, prop, &val);
2080 if (ret)
2081 return ret;
2082
2083 if (put_user(prop->base.id, prop_ptr + copied))
2084 return -EFAULT;
2085
2086 if (put_user(val, prop_values + copied))
2087 return -EFAULT;
2088
2089 copied++;
2090 }
2091 }
2092 *arg_count_props = props_count;
2093
2094 return 0;
2095}
2096
Dave Airlief453ba02008-11-07 14:05:41 -08002097/**
2098 * drm_mode_getconnector - get connector configuration
Daniel Vetter065a50ed2012-12-02 00:09:18 +01002099 * @dev: drm device for the ioctl
2100 * @data: data pointer for the ioctl
2101 * @file_priv: drm file for the ioctl call
Dave Airlief453ba02008-11-07 14:05:41 -08002102 *
Dave Airlief453ba02008-11-07 14:05:41 -08002103 * Construct a connector configuration structure to return to the user.
2104 *
2105 * Called by the user via ioctl.
2106 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01002107 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01002108 * Zero on success, negative errno on failure.
Dave Airlief453ba02008-11-07 14:05:41 -08002109 */
2110int drm_mode_getconnector(struct drm_device *dev, void *data,
2111 struct drm_file *file_priv)
2112{
2113 struct drm_mode_get_connector *out_resp = data;
Dave Airlief453ba02008-11-07 14:05:41 -08002114 struct drm_connector *connector;
Daniel Vetterabd69c52014-11-25 23:50:05 +01002115 struct drm_encoder *encoder;
Dave Airlief453ba02008-11-07 14:05:41 -08002116 struct drm_display_mode *mode;
2117 int mode_count = 0;
Dave Airlief453ba02008-11-07 14:05:41 -08002118 int encoders_count = 0;
2119 int ret = 0;
2120 int copied = 0;
2121 int i;
2122 struct drm_mode_modeinfo u_mode;
2123 struct drm_mode_modeinfo __user *mode_ptr;
Dave Airlief453ba02008-11-07 14:05:41 -08002124 uint32_t __user *encoder_ptr;
2125
Dave Airliefb3b06c2011-02-08 13:55:21 +10002126 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2127 return -EINVAL;
2128
Dave Airlief453ba02008-11-07 14:05:41 -08002129 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
2130
Jerome Glisse94401062010-07-15 15:43:25 -04002131 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
Dave Airlief453ba02008-11-07 14:05:41 -08002132
Daniel Vetter7b240562012-12-12 00:35:33 +01002133 mutex_lock(&dev->mode_config.mutex);
Dave Airlief453ba02008-11-07 14:05:41 -08002134
Rob Clarka2b34e22013-10-05 16:36:52 -04002135 connector = drm_connector_find(dev, out_resp->connector_id);
2136 if (!connector) {
Ville Syrjäläf27657f2013-10-17 13:35:00 +03002137 ret = -ENOENT;
Tommi Rantala04bdf442015-04-03 10:45:29 +03002138 goto out_unlock;
Dave Airlief453ba02008-11-07 14:05:41 -08002139 }
Dave Airlief453ba02008-11-07 14:05:41 -08002140
Thierry Reding01073b02014-12-10 13:03:38 +01002141 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++)
2142 if (connector->encoder_ids[i] != 0)
Dave Airlief453ba02008-11-07 14:05:41 -08002143 encoders_count++;
Dave Airlief453ba02008-11-07 14:05:41 -08002144
2145 if (out_resp->count_modes == 0) {
2146 connector->funcs->fill_modes(connector,
2147 dev->mode_config.max_width,
2148 dev->mode_config.max_height);
2149 }
2150
2151 /* delayed so we get modes regardless of pre-fill_modes state */
2152 list_for_each_entry(mode, &connector->modes, head)
Damien Lespiau61d8e322013-09-25 16:45:22 +01002153 if (drm_mode_expose_to_userspace(mode, file_priv))
2154 mode_count++;
Dave Airlief453ba02008-11-07 14:05:41 -08002155
2156 out_resp->connector_id = connector->base.id;
2157 out_resp->connector_type = connector->connector_type;
2158 out_resp->connector_type_id = connector->connector_type_id;
2159 out_resp->mm_width = connector->display_info.width_mm;
2160 out_resp->mm_height = connector->display_info.height_mm;
2161 out_resp->subpixel = connector->display_info.subpixel_order;
2162 out_resp->connection = connector->status;
Daniel Vetter2caa80e2015-02-22 11:38:36 +01002163
2164 drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
Daniel Vetterabd69c52014-11-25 23:50:05 +01002165 encoder = drm_connector_get_encoder(connector);
2166 if (encoder)
2167 out_resp->encoder_id = encoder->base.id;
Dave Airlief453ba02008-11-07 14:05:41 -08002168 else
2169 out_resp->encoder_id = 0;
2170
2171 /*
2172 * This ioctl is called twice, once to determine how much space is
2173 * needed, and the 2nd time to fill it.
2174 */
2175 if ((out_resp->count_modes >= mode_count) && mode_count) {
2176 copied = 0;
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02002177 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
Dave Airlief453ba02008-11-07 14:05:41 -08002178 list_for_each_entry(mode, &connector->modes, head) {
Damien Lespiau61d8e322013-09-25 16:45:22 +01002179 if (!drm_mode_expose_to_userspace(mode, file_priv))
2180 continue;
2181
Dave Airlief453ba02008-11-07 14:05:41 -08002182 drm_crtc_convert_to_umode(&u_mode, mode);
2183 if (copy_to_user(mode_ptr + copied,
2184 &u_mode, sizeof(u_mode))) {
2185 ret = -EFAULT;
2186 goto out;
2187 }
2188 copied++;
2189 }
2190 }
2191 out_resp->count_modes = mode_count;
2192
Rob Clark88a48e22014-12-18 16:01:50 -05002193 ret = get_properties(&connector->base, file_priv->atomic,
Rob Clark95cbf112014-12-18 16:01:49 -05002194 (uint32_t __user *)(unsigned long)(out_resp->props_ptr),
2195 (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr),
2196 &out_resp->count_props);
2197 if (ret)
2198 goto out;
Dave Airlief453ba02008-11-07 14:05:41 -08002199
2200 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
2201 copied = 0;
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02002202 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
Dave Airlief453ba02008-11-07 14:05:41 -08002203 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2204 if (connector->encoder_ids[i] != 0) {
2205 if (put_user(connector->encoder_ids[i],
2206 encoder_ptr + copied)) {
2207 ret = -EFAULT;
2208 goto out;
2209 }
2210 copied++;
2211 }
2212 }
2213 }
2214 out_resp->count_encoders = encoders_count;
2215
2216out:
Rob Clarkccfc0862014-12-18 16:01:48 -05002217 drm_modeset_unlock(&dev->mode_config.connection_mutex);
Tommi Rantala04bdf442015-04-03 10:45:29 +03002218
2219out_unlock:
Daniel Vetter7b240562012-12-12 00:35:33 +01002220 mutex_unlock(&dev->mode_config.mutex);
2221
Dave Airlief453ba02008-11-07 14:05:41 -08002222 return ret;
2223}
2224
Daniel Vetterabd69c52014-11-25 23:50:05 +01002225static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder)
2226{
2227 struct drm_connector *connector;
2228 struct drm_device *dev = encoder->dev;
2229 bool uses_atomic = false;
2230
2231 /* For atomic drivers only state objects are synchronously updated and
2232 * protected by modeset locks, so check those first. */
2233 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2234 if (!connector->state)
2235 continue;
2236
2237 uses_atomic = true;
2238
2239 if (connector->state->best_encoder != encoder)
2240 continue;
2241
2242 return connector->state->crtc;
2243 }
2244
2245 /* Don't return stale data (e.g. pending async disable). */
2246 if (uses_atomic)
2247 return NULL;
2248
2249 return encoder->crtc;
2250}
2251
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01002252/**
2253 * drm_mode_getencoder - get encoder configuration
2254 * @dev: drm device for the ioctl
2255 * @data: data pointer for the ioctl
2256 * @file_priv: drm file for the ioctl call
2257 *
2258 * Construct a encoder configuration structure to return to the user.
2259 *
2260 * Called by the user via ioctl.
2261 *
2262 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01002263 * Zero on success, negative errno on failure.
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01002264 */
Dave Airlief453ba02008-11-07 14:05:41 -08002265int drm_mode_getencoder(struct drm_device *dev, void *data,
2266 struct drm_file *file_priv)
2267{
2268 struct drm_mode_get_encoder *enc_resp = data;
Dave Airlief453ba02008-11-07 14:05:41 -08002269 struct drm_encoder *encoder;
Daniel Vetterabd69c52014-11-25 23:50:05 +01002270 struct drm_crtc *crtc;
Dave Airlief453ba02008-11-07 14:05:41 -08002271
Dave Airliefb3b06c2011-02-08 13:55:21 +10002272 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2273 return -EINVAL;
2274
Rob Clarka2b34e22013-10-05 16:36:52 -04002275 encoder = drm_encoder_find(dev, enc_resp->encoder_id);
Daniel Vetterfcf93f62014-11-12 08:45:01 +01002276 if (!encoder)
2277 return -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08002278
Daniel Vetterfcf93f62014-11-12 08:45:01 +01002279 drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
Daniel Vetterabd69c52014-11-25 23:50:05 +01002280 crtc = drm_encoder_get_crtc(encoder);
2281 if (crtc)
2282 enc_resp->crtc_id = crtc->base.id;
Dave Airlief453ba02008-11-07 14:05:41 -08002283 else
2284 enc_resp->crtc_id = 0;
Daniel Vetterfcf93f62014-11-12 08:45:01 +01002285 drm_modeset_unlock(&dev->mode_config.connection_mutex);
2286
Dave Airlief453ba02008-11-07 14:05:41 -08002287 enc_resp->encoder_type = encoder->encoder_type;
2288 enc_resp->encoder_id = encoder->base.id;
2289 enc_resp->possible_crtcs = encoder->possible_crtcs;
2290 enc_resp->possible_clones = encoder->possible_clones;
2291
Daniel Vetterbaf698b2014-11-12 11:59:47 +01002292 return 0;
Dave Airlief453ba02008-11-07 14:05:41 -08002293}
2294
2295/**
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01002296 * drm_mode_getplane_res - enumerate all plane resources
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002297 * @dev: DRM device
2298 * @data: ioctl data
2299 * @file_priv: DRM file info
2300 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01002301 * Construct a list of plane ids to return to the user.
2302 *
2303 * Called by the user via ioctl.
2304 *
2305 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01002306 * Zero on success, negative errno on failure.
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002307 */
2308int drm_mode_getplane_res(struct drm_device *dev, void *data,
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01002309 struct drm_file *file_priv)
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002310{
2311 struct drm_mode_get_plane_res *plane_resp = data;
2312 struct drm_mode_config *config;
2313 struct drm_plane *plane;
2314 uint32_t __user *plane_ptr;
Daniel Vetterfcf93f62014-11-12 08:45:01 +01002315 int copied = 0;
Matt Roper681e7ec2014-04-01 15:22:42 -07002316 unsigned num_planes;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002317
2318 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2319 return -EINVAL;
2320
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002321 config = &dev->mode_config;
2322
Matt Roper681e7ec2014-04-01 15:22:42 -07002323 if (file_priv->universal_planes)
2324 num_planes = config->num_total_plane;
2325 else
2326 num_planes = config->num_overlay_plane;
2327
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002328 /*
2329 * This ioctl is called twice, once to determine how much space is
2330 * needed, and the 2nd time to fill it.
2331 */
Matt Roper681e7ec2014-04-01 15:22:42 -07002332 if (num_planes &&
2333 (plane_resp->count_planes >= num_planes)) {
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02002334 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002335
Daniel Vetterfcf93f62014-11-12 08:45:01 +01002336 /* Plane lists are invariant, no locking needed. */
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002337 list_for_each_entry(plane, &config->plane_list, head) {
Matt Roper681e7ec2014-04-01 15:22:42 -07002338 /*
2339 * Unless userspace set the 'universal planes'
2340 * capability bit, only advertise overlays.
2341 */
2342 if (plane->type != DRM_PLANE_TYPE_OVERLAY &&
2343 !file_priv->universal_planes)
Matt Ropere27dde32014-04-01 15:22:30 -07002344 continue;
2345
Daniel Vetterfcf93f62014-11-12 08:45:01 +01002346 if (put_user(plane->base.id, plane_ptr + copied))
2347 return -EFAULT;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002348 copied++;
2349 }
2350 }
Matt Roper681e7ec2014-04-01 15:22:42 -07002351 plane_resp->count_planes = num_planes;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002352
Daniel Vetterfcf93f62014-11-12 08:45:01 +01002353 return 0;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002354}
2355
2356/**
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01002357 * drm_mode_getplane - get plane configuration
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002358 * @dev: DRM device
2359 * @data: ioctl data
2360 * @file_priv: DRM file info
2361 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01002362 * Construct a plane configuration structure to return to the user.
2363 *
2364 * Called by the user via ioctl.
2365 *
2366 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01002367 * Zero on success, negative errno on failure.
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002368 */
2369int drm_mode_getplane(struct drm_device *dev, void *data,
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01002370 struct drm_file *file_priv)
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002371{
2372 struct drm_mode_get_plane *plane_resp = data;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002373 struct drm_plane *plane;
2374 uint32_t __user *format_ptr;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002375
2376 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2377 return -EINVAL;
2378
Rob Clarka2b34e22013-10-05 16:36:52 -04002379 plane = drm_plane_find(dev, plane_resp->plane_id);
Daniel Vetterfcf93f62014-11-12 08:45:01 +01002380 if (!plane)
2381 return -ENOENT;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002382
Daniel Vetterfcf93f62014-11-12 08:45:01 +01002383 drm_modeset_lock(&plane->mutex, NULL);
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002384 if (plane->crtc)
2385 plane_resp->crtc_id = plane->crtc->base.id;
2386 else
2387 plane_resp->crtc_id = 0;
2388
2389 if (plane->fb)
2390 plane_resp->fb_id = plane->fb->base.id;
2391 else
2392 plane_resp->fb_id = 0;
Daniel Vetterfcf93f62014-11-12 08:45:01 +01002393 drm_modeset_unlock(&plane->mutex);
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002394
2395 plane_resp->plane_id = plane->base.id;
2396 plane_resp->possible_crtcs = plane->possible_crtcs;
Ville Syrjälä778ad902013-06-03 16:11:42 +03002397 plane_resp->gamma_size = 0;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002398
2399 /*
2400 * This ioctl is called twice, once to determine how much space is
2401 * needed, and the 2nd time to fill it.
2402 */
2403 if (plane->format_count &&
2404 (plane_resp->count_format_types >= plane->format_count)) {
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02002405 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002406 if (copy_to_user(format_ptr,
2407 plane->format_types,
2408 sizeof(uint32_t) * plane->format_count)) {
Daniel Vetterfcf93f62014-11-12 08:45:01 +01002409 return -EFAULT;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002410 }
2411 }
2412 plane_resp->count_format_types = plane->format_count;
2413
Daniel Vetterbaf698b2014-11-12 11:59:47 +01002414 return 0;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002415}
2416
Laurent Pinchartead86102015-03-05 02:25:43 +02002417/**
2418 * drm_plane_check_pixel_format - Check if the plane supports the pixel format
2419 * @plane: plane to check for format support
2420 * @format: the pixel format
2421 *
2422 * Returns:
2423 * Zero of @plane has @format in its list of supported pixel formats, -EINVAL
2424 * otherwise.
2425 */
2426int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format)
2427{
2428 unsigned int i;
2429
2430 for (i = 0; i < plane->format_count; i++) {
2431 if (format == plane->format_types[i])
2432 return 0;
2433 }
2434
2435 return -EINVAL;
2436}
2437
Matt Roperb36552b2014-06-10 08:28:09 -07002438/*
2439 * setplane_internal - setplane handler for internal callers
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002440 *
Matt Roperb36552b2014-06-10 08:28:09 -07002441 * Note that we assume an extra reference has already been taken on fb. If the
2442 * update fails, this reference will be dropped before return; if it succeeds,
2443 * the previous framebuffer (if any) will be unreferenced instead.
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01002444 *
Matt Roperb36552b2014-06-10 08:28:09 -07002445 * src_{x,y,w,h} are provided in 16.16 fixed point format
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002446 */
Daniel Vetterf2b50c12014-09-12 17:07:32 +02002447static int __setplane_internal(struct drm_plane *plane,
2448 struct drm_crtc *crtc,
2449 struct drm_framebuffer *fb,
2450 int32_t crtc_x, int32_t crtc_y,
2451 uint32_t crtc_w, uint32_t crtc_h,
2452 /* src_{x,y,w,h} values are 16.16 fixed point */
2453 uint32_t src_x, uint32_t src_y,
2454 uint32_t src_w, uint32_t src_h)
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002455{
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002456 int ret = 0;
Ville Syrjälä42ef8782011-12-20 00:06:44 +02002457 unsigned int fb_width, fb_height;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002458
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002459 /* No fb means shut it down */
Matt Roperb36552b2014-06-10 08:28:09 -07002460 if (!fb) {
Daniel Vetter3d30a592014-07-27 13:42:42 +02002461 plane->old_fb = plane->fb;
Daniel Vetter731cce42014-04-23 10:24:11 +02002462 ret = plane->funcs->disable_plane(plane);
2463 if (!ret) {
2464 plane->crtc = NULL;
2465 plane->fb = NULL;
2466 } else {
Daniel Vetter3d30a592014-07-27 13:42:42 +02002467 plane->old_fb = NULL;
Daniel Vetter731cce42014-04-23 10:24:11 +02002468 }
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002469 goto out;
2470 }
2471
Matt Roper7f994f32014-05-29 08:06:51 -07002472 /* Check whether this plane is usable on this CRTC */
2473 if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) {
2474 DRM_DEBUG_KMS("Invalid crtc for plane\n");
2475 ret = -EINVAL;
2476 goto out;
2477 }
2478
Ville Syrjälä62443be2011-12-20 00:06:47 +02002479 /* Check whether this plane supports the fb pixel format. */
Laurent Pinchartead86102015-03-05 02:25:43 +02002480 ret = drm_plane_check_pixel_format(plane, fb->pixel_format);
2481 if (ret) {
Ville Syrjälä6ba6d032013-06-10 11:15:10 +03002482 DRM_DEBUG_KMS("Invalid pixel format %s\n",
2483 drm_get_format_name(fb->pixel_format));
Ville Syrjälä62443be2011-12-20 00:06:47 +02002484 goto out;
2485 }
2486
Matt Roper3968be92015-04-13 11:06:13 -07002487 /* Give drivers some help against integer overflows */
2488 if (crtc_w > INT_MAX ||
2489 crtc_x > INT_MAX - (int32_t) crtc_w ||
2490 crtc_h > INT_MAX ||
2491 crtc_y > INT_MAX - (int32_t) crtc_h) {
2492 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
2493 crtc_w, crtc_h, crtc_x, crtc_y);
2494 return -ERANGE;
2495 }
2496
2497
Ville Syrjälä42ef8782011-12-20 00:06:44 +02002498 fb_width = fb->width << 16;
2499 fb_height = fb->height << 16;
2500
2501 /* Make sure source coordinates are inside the fb. */
Matt Roperb36552b2014-06-10 08:28:09 -07002502 if (src_w > fb_width ||
2503 src_x > fb_width - src_w ||
2504 src_h > fb_height ||
2505 src_y > fb_height - src_h) {
Ville Syrjälä42ef8782011-12-20 00:06:44 +02002506 DRM_DEBUG_KMS("Invalid source coordinates "
2507 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
Matt Roperb36552b2014-06-10 08:28:09 -07002508 src_w >> 16, ((src_w & 0xffff) * 15625) >> 10,
2509 src_h >> 16, ((src_h & 0xffff) * 15625) >> 10,
2510 src_x >> 16, ((src_x & 0xffff) * 15625) >> 10,
2511 src_y >> 16, ((src_y & 0xffff) * 15625) >> 10);
Ville Syrjälä42ef8782011-12-20 00:06:44 +02002512 ret = -ENOSPC;
2513 goto out;
2514 }
2515
Daniel Vetter3d30a592014-07-27 13:42:42 +02002516 plane->old_fb = plane->fb;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002517 ret = plane->funcs->update_plane(plane, crtc, fb,
Matt Roperb36552b2014-06-10 08:28:09 -07002518 crtc_x, crtc_y, crtc_w, crtc_h,
2519 src_x, src_y, src_w, src_h);
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002520 if (!ret) {
2521 plane->crtc = crtc;
2522 plane->fb = fb;
Daniel Vetter35f8bad2013-02-15 21:21:37 +01002523 fb = NULL;
Daniel Vetter0fe27f02014-04-23 17:34:06 +02002524 } else {
Daniel Vetter3d30a592014-07-27 13:42:42 +02002525 plane->old_fb = NULL;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002526 }
2527
2528out:
Daniel Vetter6c2a7532012-12-11 00:59:24 +01002529 if (fb)
2530 drm_framebuffer_unreference(fb);
Daniel Vetter3d30a592014-07-27 13:42:42 +02002531 if (plane->old_fb)
2532 drm_framebuffer_unreference(plane->old_fb);
2533 plane->old_fb = NULL;
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002534
2535 return ret;
Daniel Vetterf2b50c12014-09-12 17:07:32 +02002536}
Matt Roperb36552b2014-06-10 08:28:09 -07002537
Daniel Vetterf2b50c12014-09-12 17:07:32 +02002538static int setplane_internal(struct drm_plane *plane,
2539 struct drm_crtc *crtc,
2540 struct drm_framebuffer *fb,
2541 int32_t crtc_x, int32_t crtc_y,
2542 uint32_t crtc_w, uint32_t crtc_h,
2543 /* src_{x,y,w,h} values are 16.16 fixed point */
2544 uint32_t src_x, uint32_t src_y,
2545 uint32_t src_w, uint32_t src_h)
2546{
2547 int ret;
2548
2549 drm_modeset_lock_all(plane->dev);
2550 ret = __setplane_internal(plane, crtc, fb,
2551 crtc_x, crtc_y, crtc_w, crtc_h,
2552 src_x, src_y, src_w, src_h);
2553 drm_modeset_unlock_all(plane->dev);
2554
2555 return ret;
Matt Roperb36552b2014-06-10 08:28:09 -07002556}
2557
2558/**
2559 * drm_mode_setplane - configure a plane's configuration
2560 * @dev: DRM device
2561 * @data: ioctl data*
2562 * @file_priv: DRM file info
2563 *
2564 * Set plane configuration, including placement, fb, scaling, and other factors.
2565 * Or pass a NULL fb to disable (planes may be disabled without providing a
2566 * valid crtc).
2567 *
2568 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01002569 * Zero on success, negative errno on failure.
Matt Roperb36552b2014-06-10 08:28:09 -07002570 */
2571int drm_mode_setplane(struct drm_device *dev, void *data,
2572 struct drm_file *file_priv)
2573{
2574 struct drm_mode_set_plane *plane_req = data;
Matt Roperb36552b2014-06-10 08:28:09 -07002575 struct drm_plane *plane;
2576 struct drm_crtc *crtc = NULL;
2577 struct drm_framebuffer *fb = NULL;
2578
2579 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2580 return -EINVAL;
2581
Matt Roperb36552b2014-06-10 08:28:09 -07002582 /*
2583 * First, find the plane, crtc, and fb objects. If not available,
2584 * we don't bother to call the driver.
2585 */
Rob Clark933f6222014-11-25 20:33:11 -05002586 plane = drm_plane_find(dev, plane_req->plane_id);
2587 if (!plane) {
Matt Roperb36552b2014-06-10 08:28:09 -07002588 DRM_DEBUG_KMS("Unknown plane ID %d\n",
2589 plane_req->plane_id);
2590 return -ENOENT;
2591 }
Matt Roperb36552b2014-06-10 08:28:09 -07002592
2593 if (plane_req->fb_id) {
2594 fb = drm_framebuffer_lookup(dev, plane_req->fb_id);
2595 if (!fb) {
2596 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
2597 plane_req->fb_id);
2598 return -ENOENT;
2599 }
2600
Rob Clark933f6222014-11-25 20:33:11 -05002601 crtc = drm_crtc_find(dev, plane_req->crtc_id);
2602 if (!crtc) {
Matt Roperb36552b2014-06-10 08:28:09 -07002603 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
2604 plane_req->crtc_id);
2605 return -ENOENT;
2606 }
Matt Roperb36552b2014-06-10 08:28:09 -07002607 }
2608
Matt Roper161d0dc2014-06-10 08:28:10 -07002609 /*
2610 * setplane_internal will take care of deref'ing either the old or new
2611 * framebuffer depending on success.
2612 */
Chris Wilson17cfd912014-06-13 15:22:28 +01002613 return setplane_internal(plane, crtc, fb,
Matt Roperb36552b2014-06-10 08:28:09 -07002614 plane_req->crtc_x, plane_req->crtc_y,
2615 plane_req->crtc_w, plane_req->crtc_h,
2616 plane_req->src_x, plane_req->src_y,
2617 plane_req->src_w, plane_req->src_h);
Jesse Barnes8cf5c912011-11-14 14:51:27 -08002618}
2619
2620/**
Daniel Vetter2d13b672012-12-11 13:47:23 +01002621 * drm_mode_set_config_internal - helper to call ->set_config
2622 * @set: modeset config to set
2623 *
2624 * This is a little helper to wrap internal calls to the ->set_config driver
2625 * interface. The only thing it adds is correct refcounting dance.
Thierry Reding4dfd9092014-12-10 13:03:34 +01002626 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01002627 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01002628 * Zero on success, negative errno on failure.
Daniel Vetter2d13b672012-12-11 13:47:23 +01002629 */
2630int drm_mode_set_config_internal(struct drm_mode_set *set)
2631{
2632 struct drm_crtc *crtc = set->crtc;
Daniel Vetter5cef29a2013-06-15 00:13:16 +02002633 struct drm_framebuffer *fb;
2634 struct drm_crtc *tmp;
Daniel Vetterb0d12322012-12-11 01:07:12 +01002635 int ret;
Daniel Vetter2d13b672012-12-11 13:47:23 +01002636
Daniel Vetter5cef29a2013-06-15 00:13:16 +02002637 /*
2638 * NOTE: ->set_config can also disable other crtcs (if we steal all
2639 * connectors from it), hence we need to refcount the fbs across all
2640 * crtcs. Atomic modeset will have saner semantics ...
2641 */
2642 list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head)
Daniel Vetter3d30a592014-07-27 13:42:42 +02002643 tmp->primary->old_fb = tmp->primary->fb;
Daniel Vetter5cef29a2013-06-15 00:13:16 +02002644
Daniel Vetterb0d12322012-12-11 01:07:12 +01002645 fb = set->fb;
2646
2647 ret = crtc->funcs->set_config(set);
2648 if (ret == 0) {
Matt Ropere13161a2014-04-01 15:22:38 -07002649 crtc->primary->crtc = crtc;
Daniel Vetter0fe27f02014-04-23 17:34:06 +02002650 crtc->primary->fb = fb;
Daniel Vetter5cef29a2013-06-15 00:13:16 +02002651 }
Daniel Vettercc85e122013-06-15 00:13:15 +02002652
Daniel Vetter5cef29a2013-06-15 00:13:16 +02002653 list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) {
Matt Roperf4510a22014-04-01 15:22:40 -07002654 if (tmp->primary->fb)
2655 drm_framebuffer_reference(tmp->primary->fb);
Daniel Vetter3d30a592014-07-27 13:42:42 +02002656 if (tmp->primary->old_fb)
2657 drm_framebuffer_unreference(tmp->primary->old_fb);
2658 tmp->primary->old_fb = NULL;
Daniel Vetterb0d12322012-12-11 01:07:12 +01002659 }
2660
2661 return ret;
Daniel Vetter2d13b672012-12-11 13:47:23 +01002662}
2663EXPORT_SYMBOL(drm_mode_set_config_internal);
2664
Matt Roperaf936292014-04-01 15:22:34 -07002665/**
Gustavo Padovanecb7e162014-12-01 15:40:09 -08002666 * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode
2667 * @mode: mode to query
2668 * @hdisplay: hdisplay value to fill in
2669 * @vdisplay: vdisplay value to fill in
2670 *
2671 * The vdisplay value will be doubled if the specified mode is a stereo mode of
2672 * the appropriate layout.
2673 */
2674void drm_crtc_get_hv_timing(const struct drm_display_mode *mode,
2675 int *hdisplay, int *vdisplay)
2676{
2677 struct drm_display_mode adjusted;
2678
2679 drm_mode_copy(&adjusted, mode);
2680 drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY);
2681 *hdisplay = adjusted.crtc_hdisplay;
2682 *vdisplay = adjusted.crtc_vdisplay;
2683}
2684EXPORT_SYMBOL(drm_crtc_get_hv_timing);
2685
2686/**
Matt Roperaf936292014-04-01 15:22:34 -07002687 * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the
2688 * CRTC viewport
2689 * @crtc: CRTC that framebuffer will be displayed on
2690 * @x: x panning
2691 * @y: y panning
2692 * @mode: mode that framebuffer will be displayed under
2693 * @fb: framebuffer to check size of
Damien Lespiauc11e9282013-09-25 16:45:30 +01002694 */
Matt Roperaf936292014-04-01 15:22:34 -07002695int drm_crtc_check_viewport(const struct drm_crtc *crtc,
2696 int x, int y,
2697 const struct drm_display_mode *mode,
2698 const struct drm_framebuffer *fb)
Damien Lespiauc11e9282013-09-25 16:45:30 +01002699
2700{
2701 int hdisplay, vdisplay;
2702
Gustavo Padovanecb7e162014-12-01 15:40:09 -08002703 drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay);
Damien Lespiaua0c1bbb2013-09-25 16:45:31 +01002704
Damien Lespiauc11e9282013-09-25 16:45:30 +01002705 if (crtc->invert_dimensions)
2706 swap(hdisplay, vdisplay);
2707
2708 if (hdisplay > fb->width ||
2709 vdisplay > fb->height ||
2710 x > fb->width - hdisplay ||
2711 y > fb->height - vdisplay) {
2712 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
2713 fb->width, fb->height, hdisplay, vdisplay, x, y,
2714 crtc->invert_dimensions ? " (inverted)" : "");
2715 return -ENOSPC;
2716 }
2717
2718 return 0;
2719}
Matt Roperaf936292014-04-01 15:22:34 -07002720EXPORT_SYMBOL(drm_crtc_check_viewport);
Damien Lespiauc11e9282013-09-25 16:45:30 +01002721
Daniel Vetter2d13b672012-12-11 13:47:23 +01002722/**
Dave Airlief453ba02008-11-07 14:05:41 -08002723 * drm_mode_setcrtc - set CRTC configuration
Daniel Vetter065a50ed2012-12-02 00:09:18 +01002724 * @dev: drm device for the ioctl
2725 * @data: data pointer for the ioctl
2726 * @file_priv: drm file for the ioctl call
Dave Airlief453ba02008-11-07 14:05:41 -08002727 *
Dave Airlief453ba02008-11-07 14:05:41 -08002728 * Build a new CRTC configuration based on user request.
2729 *
2730 * Called by the user via ioctl.
2731 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01002732 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01002733 * Zero on success, negative errno on failure.
Dave Airlief453ba02008-11-07 14:05:41 -08002734 */
2735int drm_mode_setcrtc(struct drm_device *dev, void *data,
2736 struct drm_file *file_priv)
2737{
2738 struct drm_mode_config *config = &dev->mode_config;
2739 struct drm_mode_crtc *crtc_req = data;
Ville Syrjälä6653cc82012-03-13 12:35:38 +02002740 struct drm_crtc *crtc;
Dave Airlief453ba02008-11-07 14:05:41 -08002741 struct drm_connector **connector_set = NULL, *connector;
2742 struct drm_framebuffer *fb = NULL;
2743 struct drm_display_mode *mode = NULL;
2744 struct drm_mode_set set;
2745 uint32_t __user *set_connectors_ptr;
Laurent Pinchart4a1b0712012-05-17 13:27:21 +02002746 int ret;
Dave Airlief453ba02008-11-07 14:05:41 -08002747 int i;
2748
Dave Airliefb3b06c2011-02-08 13:55:21 +10002749 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2750 return -EINVAL;
2751
Ville Syrjälä1d97e912012-03-13 12:35:41 +02002752 /* For some reason crtc x/y offsets are signed internally. */
2753 if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX)
2754 return -ERANGE;
2755
Daniel Vetter84849902012-12-02 00:28:11 +01002756 drm_modeset_lock_all(dev);
Rob Clarka2b34e22013-10-05 16:36:52 -04002757 crtc = drm_crtc_find(dev, crtc_req->crtc_id);
2758 if (!crtc) {
Zhao Yakui58367ed2009-07-20 13:48:07 +08002759 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
Ville Syrjäläf27657f2013-10-17 13:35:00 +03002760 ret = -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08002761 goto out;
2762 }
Jerome Glisse94401062010-07-15 15:43:25 -04002763 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
Dave Airlief453ba02008-11-07 14:05:41 -08002764
2765 if (crtc_req->mode_valid) {
2766 /* If we have a mode we need a framebuffer. */
2767 /* If we pass -1, set the mode with the currently bound fb */
2768 if (crtc_req->fb_id == -1) {
Matt Roperf4510a22014-04-01 15:22:40 -07002769 if (!crtc->primary->fb) {
Ville Syrjälä6653cc82012-03-13 12:35:38 +02002770 DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
2771 ret = -EINVAL;
2772 goto out;
Dave Airlief453ba02008-11-07 14:05:41 -08002773 }
Matt Roperf4510a22014-04-01 15:22:40 -07002774 fb = crtc->primary->fb;
Daniel Vetterb0d12322012-12-11 01:07:12 +01002775 /* Make refcounting symmetric with the lookup path. */
2776 drm_framebuffer_reference(fb);
Dave Airlief453ba02008-11-07 14:05:41 -08002777 } else {
Daniel Vetter786b99e2012-12-02 21:53:40 +01002778 fb = drm_framebuffer_lookup(dev, crtc_req->fb_id);
2779 if (!fb) {
Zhao Yakui58367ed2009-07-20 13:48:07 +08002780 DRM_DEBUG_KMS("Unknown FB ID%d\n",
2781 crtc_req->fb_id);
Ville Syrjälä37c4e702013-10-17 13:35:01 +03002782 ret = -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08002783 goto out;
2784 }
Dave Airlief453ba02008-11-07 14:05:41 -08002785 }
2786
2787 mode = drm_mode_create(dev);
Ville Syrjäläee34ab52012-03-13 12:35:43 +02002788 if (!mode) {
2789 ret = -ENOMEM;
2790 goto out;
2791 }
2792
Ville Syrjälä90367bf2012-03-13 12:35:44 +02002793 ret = drm_crtc_convert_umode(mode, &crtc_req->mode);
2794 if (ret) {
2795 DRM_DEBUG_KMS("Invalid mode\n");
2796 goto out;
2797 }
2798
Ville Syrjälä23e1ce82014-12-17 13:56:24 +02002799 mode->status = drm_mode_validate_basic(mode);
2800 if (mode->status != MODE_OK) {
2801 ret = -EINVAL;
2802 goto out;
2803 }
2804
Dave Airlief453ba02008-11-07 14:05:41 -08002805 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
Ville Syrjälä5f61bb42012-03-13 12:35:45 +02002806
Laurent Pinchart7eb5f302015-03-09 10:41:07 +02002807 /*
2808 * Check whether the primary plane supports the fb pixel format.
2809 * Drivers not implementing the universal planes API use a
2810 * default formats list provided by the DRM core which doesn't
2811 * match real hardware capabilities. Skip the check in that
2812 * case.
2813 */
2814 if (!crtc->primary->format_default) {
2815 ret = drm_plane_check_pixel_format(crtc->primary,
2816 fb->pixel_format);
2817 if (ret) {
2818 DRM_DEBUG_KMS("Invalid pixel format %s\n",
2819 drm_get_format_name(fb->pixel_format));
2820 goto out;
2821 }
2822 }
2823
Damien Lespiauc11e9282013-09-25 16:45:30 +01002824 ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y,
2825 mode, fb);
2826 if (ret)
Ville Syrjälä5f61bb42012-03-13 12:35:45 +02002827 goto out;
Damien Lespiauc11e9282013-09-25 16:45:30 +01002828
Dave Airlief453ba02008-11-07 14:05:41 -08002829 }
2830
2831 if (crtc_req->count_connectors == 0 && mode) {
Zhao Yakui58367ed2009-07-20 13:48:07 +08002832 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
Dave Airlief453ba02008-11-07 14:05:41 -08002833 ret = -EINVAL;
2834 goto out;
2835 }
2836
Jakob Bornecrantz7781de72009-08-03 13:43:58 +01002837 if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
Zhao Yakui58367ed2009-07-20 13:48:07 +08002838 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
Dave Airlief453ba02008-11-07 14:05:41 -08002839 crtc_req->count_connectors);
2840 ret = -EINVAL;
2841 goto out;
2842 }
2843
2844 if (crtc_req->count_connectors > 0) {
2845 u32 out_id;
2846
2847 /* Avoid unbounded kernel memory allocation */
2848 if (crtc_req->count_connectors > config->num_connector) {
2849 ret = -EINVAL;
2850 goto out;
2851 }
2852
Thierry Reding2f6c5382014-12-10 13:03:36 +01002853 connector_set = kmalloc_array(crtc_req->count_connectors,
2854 sizeof(struct drm_connector *),
2855 GFP_KERNEL);
Dave Airlief453ba02008-11-07 14:05:41 -08002856 if (!connector_set) {
2857 ret = -ENOMEM;
2858 goto out;
2859 }
2860
2861 for (i = 0; i < crtc_req->count_connectors; i++) {
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02002862 set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
Dave Airlief453ba02008-11-07 14:05:41 -08002863 if (get_user(out_id, &set_connectors_ptr[i])) {
2864 ret = -EFAULT;
2865 goto out;
2866 }
2867
Rob Clarka2b34e22013-10-05 16:36:52 -04002868 connector = drm_connector_find(dev, out_id);
2869 if (!connector) {
Zhao Yakui58367ed2009-07-20 13:48:07 +08002870 DRM_DEBUG_KMS("Connector id %d unknown\n",
2871 out_id);
Ville Syrjäläf27657f2013-10-17 13:35:00 +03002872 ret = -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08002873 goto out;
2874 }
Jerome Glisse94401062010-07-15 15:43:25 -04002875 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
2876 connector->base.id,
Jani Nikula25933822014-06-03 14:56:20 +03002877 connector->name);
Dave Airlief453ba02008-11-07 14:05:41 -08002878
2879 connector_set[i] = connector;
2880 }
2881 }
2882
2883 set.crtc = crtc;
2884 set.x = crtc_req->x;
2885 set.y = crtc_req->y;
2886 set.mode = mode;
2887 set.connectors = connector_set;
2888 set.num_connectors = crtc_req->count_connectors;
Dave Airlie5ef5f722009-08-17 13:11:23 +10002889 set.fb = fb;
Daniel Vetter2d13b672012-12-11 13:47:23 +01002890 ret = drm_mode_set_config_internal(&set);
Dave Airlief453ba02008-11-07 14:05:41 -08002891
2892out:
Daniel Vetterb0d12322012-12-11 01:07:12 +01002893 if (fb)
2894 drm_framebuffer_unreference(fb);
2895
Dave Airlief453ba02008-11-07 14:05:41 -08002896 kfree(connector_set);
Ville Syrjäläee34ab52012-03-13 12:35:43 +02002897 drm_mode_destroy(dev, mode);
Daniel Vetter84849902012-12-02 00:28:11 +01002898 drm_modeset_unlock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08002899 return ret;
2900}
2901
Matt Roper161d0dc2014-06-10 08:28:10 -07002902/**
2903 * drm_mode_cursor_universal - translate legacy cursor ioctl call into a
2904 * universal plane handler call
2905 * @crtc: crtc to update cursor for
2906 * @req: data pointer for the ioctl
2907 * @file_priv: drm file for the ioctl call
2908 *
2909 * Legacy cursor ioctl's work directly with driver buffer handles. To
2910 * translate legacy ioctl calls into universal plane handler calls, we need to
2911 * wrap the native buffer handle in a drm_framebuffer.
2912 *
2913 * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB
2914 * buffer with a pitch of 4*width; the universal plane interface should be used
2915 * directly in cases where the hardware can support other buffer settings and
2916 * userspace wants to make use of these capabilities.
2917 *
2918 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01002919 * Zero on success, negative errno on failure.
Matt Roper161d0dc2014-06-10 08:28:10 -07002920 */
2921static int drm_mode_cursor_universal(struct drm_crtc *crtc,
2922 struct drm_mode_cursor2 *req,
2923 struct drm_file *file_priv)
2924{
2925 struct drm_device *dev = crtc->dev;
2926 struct drm_framebuffer *fb = NULL;
2927 struct drm_mode_fb_cmd2 fbreq = {
2928 .width = req->width,
2929 .height = req->height,
2930 .pixel_format = DRM_FORMAT_ARGB8888,
2931 .pitches = { req->width * 4 },
2932 .handles = { req->handle },
2933 };
2934 int32_t crtc_x, crtc_y;
2935 uint32_t crtc_w = 0, crtc_h = 0;
2936 uint32_t src_w = 0, src_h = 0;
2937 int ret = 0;
2938
2939 BUG_ON(!crtc->cursor);
Daniel Vetterf2b50c12014-09-12 17:07:32 +02002940 WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL);
Matt Roper161d0dc2014-06-10 08:28:10 -07002941
2942 /*
2943 * Obtain fb we'll be using (either new or existing) and take an extra
2944 * reference to it if fb != null. setplane will take care of dropping
2945 * the reference if the plane update fails.
2946 */
2947 if (req->flags & DRM_MODE_CURSOR_BO) {
2948 if (req->handle) {
Chris Wilson9a6f5132015-02-25 13:45:26 +00002949 fb = internal_framebuffer_create(dev, &fbreq, file_priv);
Matt Roper161d0dc2014-06-10 08:28:10 -07002950 if (IS_ERR(fb)) {
2951 DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n");
2952 return PTR_ERR(fb);
2953 }
Matt Roper161d0dc2014-06-10 08:28:10 -07002954 } else {
2955 fb = NULL;
2956 }
2957 } else {
Matt Roper161d0dc2014-06-10 08:28:10 -07002958 fb = crtc->cursor->fb;
2959 if (fb)
2960 drm_framebuffer_reference(fb);
Matt Roper161d0dc2014-06-10 08:28:10 -07002961 }
2962
2963 if (req->flags & DRM_MODE_CURSOR_MOVE) {
2964 crtc_x = req->x;
2965 crtc_y = req->y;
2966 } else {
2967 crtc_x = crtc->cursor_x;
2968 crtc_y = crtc->cursor_y;
2969 }
2970
2971 if (fb) {
2972 crtc_w = fb->width;
2973 crtc_h = fb->height;
2974 src_w = fb->width << 16;
2975 src_h = fb->height << 16;
2976 }
2977
2978 /*
2979 * setplane_internal will take care of deref'ing either the old or new
2980 * framebuffer depending on success.
2981 */
Daniel Vetterf2b50c12014-09-12 17:07:32 +02002982 ret = __setplane_internal(crtc->cursor, crtc, fb,
Matt Roper161d0dc2014-06-10 08:28:10 -07002983 crtc_x, crtc_y, crtc_w, crtc_h,
2984 0, 0, src_w, src_h);
2985
2986 /* Update successful; save new cursor position, if necessary */
2987 if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) {
2988 crtc->cursor_x = req->x;
2989 crtc->cursor_y = req->y;
2990 }
2991
2992 return ret;
2993}
2994
Dave Airlie4c813d42013-06-20 11:48:52 +10002995static int drm_mode_cursor_common(struct drm_device *dev,
2996 struct drm_mode_cursor2 *req,
2997 struct drm_file *file_priv)
Dave Airlief453ba02008-11-07 14:05:41 -08002998{
Dave Airlief453ba02008-11-07 14:05:41 -08002999 struct drm_crtc *crtc;
3000 int ret = 0;
3001
Dave Airliefb3b06c2011-02-08 13:55:21 +10003002 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3003 return -EINVAL;
3004
Jakob Bornecrantz7c4eaca2012-08-16 08:29:03 +00003005 if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
Dave Airlief453ba02008-11-07 14:05:41 -08003006 return -EINVAL;
Dave Airlief453ba02008-11-07 14:05:41 -08003007
Rob Clarka2b34e22013-10-05 16:36:52 -04003008 crtc = drm_crtc_find(dev, req->crtc_id);
3009 if (!crtc) {
Zhao Yakui58367ed2009-07-20 13:48:07 +08003010 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
Ville Syrjäläf27657f2013-10-17 13:35:00 +03003011 return -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08003012 }
Dave Airlief453ba02008-11-07 14:05:41 -08003013
Matt Roper161d0dc2014-06-10 08:28:10 -07003014 /*
3015 * If this crtc has a universal cursor plane, call that plane's update
3016 * handler rather than using legacy cursor handlers.
3017 */
Daniel Vetter4d02e2d2014-11-11 10:12:00 +01003018 drm_modeset_lock_crtc(crtc, crtc->cursor);
Daniel Vetterf2b50c12014-09-12 17:07:32 +02003019 if (crtc->cursor) {
3020 ret = drm_mode_cursor_universal(crtc, req, file_priv);
3021 goto out;
3022 }
3023
Dave Airlief453ba02008-11-07 14:05:41 -08003024 if (req->flags & DRM_MODE_CURSOR_BO) {
Dave Airlie4c813d42013-06-20 11:48:52 +10003025 if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) {
Dave Airlief453ba02008-11-07 14:05:41 -08003026 ret = -ENXIO;
3027 goto out;
3028 }
3029 /* Turns off the cursor if handle is 0 */
Dave Airlie4c813d42013-06-20 11:48:52 +10003030 if (crtc->funcs->cursor_set2)
3031 ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle,
3032 req->width, req->height, req->hot_x, req->hot_y);
3033 else
3034 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
3035 req->width, req->height);
Dave Airlief453ba02008-11-07 14:05:41 -08003036 }
3037
3038 if (req->flags & DRM_MODE_CURSOR_MOVE) {
3039 if (crtc->funcs->cursor_move) {
3040 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
3041 } else {
Dave Airlief453ba02008-11-07 14:05:41 -08003042 ret = -EFAULT;
3043 goto out;
3044 }
3045 }
3046out:
Daniel Vetterd059f652014-07-25 18:07:40 +02003047 drm_modeset_unlock_crtc(crtc);
Daniel Vetterdac35662012-12-02 15:24:10 +01003048
Dave Airlief453ba02008-11-07 14:05:41 -08003049 return ret;
Dave Airlie4c813d42013-06-20 11:48:52 +10003050
3051}
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003052
3053
3054/**
3055 * drm_mode_cursor_ioctl - set CRTC's cursor configuration
3056 * @dev: drm device for the ioctl
3057 * @data: data pointer for the ioctl
3058 * @file_priv: drm file for the ioctl call
3059 *
3060 * Set the cursor configuration based on user request.
3061 *
3062 * Called by the user via ioctl.
3063 *
3064 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01003065 * Zero on success, negative errno on failure.
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003066 */
Dave Airlie4c813d42013-06-20 11:48:52 +10003067int drm_mode_cursor_ioctl(struct drm_device *dev,
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003068 void *data, struct drm_file *file_priv)
Dave Airlie4c813d42013-06-20 11:48:52 +10003069{
3070 struct drm_mode_cursor *req = data;
3071 struct drm_mode_cursor2 new_req;
3072
3073 memcpy(&new_req, req, sizeof(struct drm_mode_cursor));
3074 new_req.hot_x = new_req.hot_y = 0;
3075
3076 return drm_mode_cursor_common(dev, &new_req, file_priv);
3077}
3078
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003079/**
3080 * drm_mode_cursor2_ioctl - set CRTC's cursor configuration
3081 * @dev: drm device for the ioctl
3082 * @data: data pointer for the ioctl
3083 * @file_priv: drm file for the ioctl call
3084 *
3085 * Set the cursor configuration based on user request. This implements the 2nd
3086 * version of the cursor ioctl, which allows userspace to additionally specify
3087 * the hotspot of the pointer.
3088 *
3089 * Called by the user via ioctl.
3090 *
3091 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01003092 * Zero on success, negative errno on failure.
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003093 */
Dave Airlie4c813d42013-06-20 11:48:52 +10003094int drm_mode_cursor2_ioctl(struct drm_device *dev,
3095 void *data, struct drm_file *file_priv)
3096{
3097 struct drm_mode_cursor2 *req = data;
Thierry Reding4dfd9092014-12-10 13:03:34 +01003098
Dave Airlie4c813d42013-06-20 11:48:52 +10003099 return drm_mode_cursor_common(dev, req, file_priv);
Dave Airlief453ba02008-11-07 14:05:41 -08003100}
3101
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003102/**
3103 * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description
3104 * @bpp: bits per pixels
3105 * @depth: bit depth per pixel
3106 *
3107 * Computes a drm fourcc pixel format code for the given @bpp/@depth values.
3108 * Useful in fbdev emulation code, since that deals in those values.
3109 */
Jesse Barnes308e5bc2011-11-14 14:51:28 -08003110uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
3111{
3112 uint32_t fmt;
3113
3114 switch (bpp) {
3115 case 8:
Ville Syrjäläd84f0312013-01-31 19:43:38 +02003116 fmt = DRM_FORMAT_C8;
Jesse Barnes308e5bc2011-11-14 14:51:28 -08003117 break;
3118 case 16:
3119 if (depth == 15)
Ville Syrjälä04b39242011-11-17 18:05:13 +02003120 fmt = DRM_FORMAT_XRGB1555;
Jesse Barnes308e5bc2011-11-14 14:51:28 -08003121 else
Ville Syrjälä04b39242011-11-17 18:05:13 +02003122 fmt = DRM_FORMAT_RGB565;
Jesse Barnes308e5bc2011-11-14 14:51:28 -08003123 break;
3124 case 24:
Ville Syrjälä04b39242011-11-17 18:05:13 +02003125 fmt = DRM_FORMAT_RGB888;
Jesse Barnes308e5bc2011-11-14 14:51:28 -08003126 break;
3127 case 32:
3128 if (depth == 24)
Ville Syrjälä04b39242011-11-17 18:05:13 +02003129 fmt = DRM_FORMAT_XRGB8888;
Jesse Barnes308e5bc2011-11-14 14:51:28 -08003130 else if (depth == 30)
Ville Syrjälä04b39242011-11-17 18:05:13 +02003131 fmt = DRM_FORMAT_XRGB2101010;
Jesse Barnes308e5bc2011-11-14 14:51:28 -08003132 else
Ville Syrjälä04b39242011-11-17 18:05:13 +02003133 fmt = DRM_FORMAT_ARGB8888;
Jesse Barnes308e5bc2011-11-14 14:51:28 -08003134 break;
3135 default:
Ville Syrjälä04b39242011-11-17 18:05:13 +02003136 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
3137 fmt = DRM_FORMAT_XRGB8888;
Jesse Barnes308e5bc2011-11-14 14:51:28 -08003138 break;
3139 }
3140
3141 return fmt;
3142}
3143EXPORT_SYMBOL(drm_mode_legacy_fb_format);
3144
Dave Airlief453ba02008-11-07 14:05:41 -08003145/**
3146 * drm_mode_addfb - add an FB to the graphics configuration
Daniel Vetter065a50ed2012-12-02 00:09:18 +01003147 * @dev: drm device for the ioctl
3148 * @data: data pointer for the ioctl
3149 * @file_priv: drm file for the ioctl call
Dave Airlief453ba02008-11-07 14:05:41 -08003150 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003151 * Add a new FB to the specified CRTC, given a user request. This is the
Chuck Ebbert209f5522014-10-08 11:37:20 -05003152 * original addfb ioctl which only supported RGB formats.
Dave Airlief453ba02008-11-07 14:05:41 -08003153 *
3154 * Called by the user via ioctl.
3155 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003156 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01003157 * Zero on success, negative errno on failure.
Dave Airlief453ba02008-11-07 14:05:41 -08003158 */
3159int drm_mode_addfb(struct drm_device *dev,
3160 void *data, struct drm_file *file_priv)
3161{
Jesse Barnes308e5bc2011-11-14 14:51:28 -08003162 struct drm_mode_fb_cmd *or = data;
3163 struct drm_mode_fb_cmd2 r = {};
Chuck Ebbert228f2cb2014-10-08 11:40:34 -05003164 int ret;
Jesse Barnes308e5bc2011-11-14 14:51:28 -08003165
Chuck Ebbert228f2cb2014-10-08 11:40:34 -05003166 /* convert to new format and call new ioctl */
Jesse Barnes308e5bc2011-11-14 14:51:28 -08003167 r.fb_id = or->fb_id;
3168 r.width = or->width;
3169 r.height = or->height;
3170 r.pitches[0] = or->pitch;
3171 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
3172 r.handles[0] = or->handle;
3173
Chuck Ebbert228f2cb2014-10-08 11:40:34 -05003174 ret = drm_mode_addfb2(dev, &r, file_priv);
3175 if (ret)
3176 return ret;
Jesse Barnes308e5bc2011-11-14 14:51:28 -08003177
Chuck Ebbert228f2cb2014-10-08 11:40:34 -05003178 or->fb_id = r.fb_id;
Daniel Vetter4b096ac2012-12-10 21:19:18 +01003179
Daniel Vetterbaf698b2014-11-12 11:59:47 +01003180 return 0;
Jesse Barnes308e5bc2011-11-14 14:51:28 -08003181}
3182
Ville Syrjäläcff91b62012-05-24 20:54:00 +03003183static int format_check(const struct drm_mode_fb_cmd2 *r)
Ville Syrjälä935b5972011-12-20 00:06:48 +02003184{
3185 uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
3186
3187 switch (format) {
3188 case DRM_FORMAT_C8:
3189 case DRM_FORMAT_RGB332:
3190 case DRM_FORMAT_BGR233:
3191 case DRM_FORMAT_XRGB4444:
3192 case DRM_FORMAT_XBGR4444:
3193 case DRM_FORMAT_RGBX4444:
3194 case DRM_FORMAT_BGRX4444:
3195 case DRM_FORMAT_ARGB4444:
3196 case DRM_FORMAT_ABGR4444:
3197 case DRM_FORMAT_RGBA4444:
3198 case DRM_FORMAT_BGRA4444:
3199 case DRM_FORMAT_XRGB1555:
3200 case DRM_FORMAT_XBGR1555:
3201 case DRM_FORMAT_RGBX5551:
3202 case DRM_FORMAT_BGRX5551:
3203 case DRM_FORMAT_ARGB1555:
3204 case DRM_FORMAT_ABGR1555:
3205 case DRM_FORMAT_RGBA5551:
3206 case DRM_FORMAT_BGRA5551:
3207 case DRM_FORMAT_RGB565:
3208 case DRM_FORMAT_BGR565:
3209 case DRM_FORMAT_RGB888:
3210 case DRM_FORMAT_BGR888:
3211 case DRM_FORMAT_XRGB8888:
3212 case DRM_FORMAT_XBGR8888:
3213 case DRM_FORMAT_RGBX8888:
3214 case DRM_FORMAT_BGRX8888:
3215 case DRM_FORMAT_ARGB8888:
3216 case DRM_FORMAT_ABGR8888:
3217 case DRM_FORMAT_RGBA8888:
3218 case DRM_FORMAT_BGRA8888:
3219 case DRM_FORMAT_XRGB2101010:
3220 case DRM_FORMAT_XBGR2101010:
3221 case DRM_FORMAT_RGBX1010102:
3222 case DRM_FORMAT_BGRX1010102:
3223 case DRM_FORMAT_ARGB2101010:
3224 case DRM_FORMAT_ABGR2101010:
3225 case DRM_FORMAT_RGBA1010102:
3226 case DRM_FORMAT_BGRA1010102:
3227 case DRM_FORMAT_YUYV:
3228 case DRM_FORMAT_YVYU:
3229 case DRM_FORMAT_UYVY:
3230 case DRM_FORMAT_VYUY:
3231 case DRM_FORMAT_AYUV:
3232 case DRM_FORMAT_NV12:
3233 case DRM_FORMAT_NV21:
3234 case DRM_FORMAT_NV16:
3235 case DRM_FORMAT_NV61:
Laurent Pinchartba623f62012-05-18 23:47:40 +02003236 case DRM_FORMAT_NV24:
3237 case DRM_FORMAT_NV42:
Ville Syrjälä935b5972011-12-20 00:06:48 +02003238 case DRM_FORMAT_YUV410:
3239 case DRM_FORMAT_YVU410:
3240 case DRM_FORMAT_YUV411:
3241 case DRM_FORMAT_YVU411:
3242 case DRM_FORMAT_YUV420:
3243 case DRM_FORMAT_YVU420:
3244 case DRM_FORMAT_YUV422:
3245 case DRM_FORMAT_YVU422:
3246 case DRM_FORMAT_YUV444:
3247 case DRM_FORMAT_YVU444:
3248 return 0;
3249 default:
Ville Syrjälä23c453a2013-10-15 21:06:51 +03003250 DRM_DEBUG_KMS("invalid pixel format %s\n",
3251 drm_get_format_name(r->pixel_format));
Ville Syrjälä935b5972011-12-20 00:06:48 +02003252 return -EINVAL;
3253 }
3254}
3255
Ville Syrjäläcff91b62012-05-24 20:54:00 +03003256static int framebuffer_check(const struct drm_mode_fb_cmd2 *r)
Ville Syrjäläd1b45d52012-04-05 21:35:18 +03003257{
3258 int ret, hsub, vsub, num_planes, i;
3259
3260 ret = format_check(r);
3261 if (ret) {
Ville Syrjälä6ba6d032013-06-10 11:15:10 +03003262 DRM_DEBUG_KMS("bad framebuffer format %s\n",
3263 drm_get_format_name(r->pixel_format));
Ville Syrjäläd1b45d52012-04-05 21:35:18 +03003264 return ret;
3265 }
3266
3267 hsub = drm_format_horz_chroma_subsampling(r->pixel_format);
3268 vsub = drm_format_vert_chroma_subsampling(r->pixel_format);
3269 num_planes = drm_format_num_planes(r->pixel_format);
3270
3271 if (r->width == 0 || r->width % hsub) {
Chuck Ebbert209f5522014-10-08 11:37:20 -05003272 DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width);
Ville Syrjäläd1b45d52012-04-05 21:35:18 +03003273 return -EINVAL;
3274 }
3275
3276 if (r->height == 0 || r->height % vsub) {
Dave Airlie1aa1b112012-05-01 17:38:35 +01003277 DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height);
Ville Syrjäläd1b45d52012-04-05 21:35:18 +03003278 return -EINVAL;
3279 }
3280
3281 for (i = 0; i < num_planes; i++) {
3282 unsigned int width = r->width / (i != 0 ? hsub : 1);
Ville Syrjäläb180b5d2012-10-25 18:05:04 +00003283 unsigned int height = r->height / (i != 0 ? vsub : 1);
3284 unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i);
Ville Syrjäläd1b45d52012-04-05 21:35:18 +03003285
3286 if (!r->handles[i]) {
Dave Airlie1aa1b112012-05-01 17:38:35 +01003287 DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i);
Ville Syrjäläd1b45d52012-04-05 21:35:18 +03003288 return -EINVAL;
3289 }
3290
Ville Syrjäläb180b5d2012-10-25 18:05:04 +00003291 if ((uint64_t) width * cpp > UINT_MAX)
3292 return -ERANGE;
3293
3294 if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX)
3295 return -ERANGE;
3296
3297 if (r->pitches[i] < width * cpp) {
Dave Airlie1aa1b112012-05-01 17:38:35 +01003298 DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
Ville Syrjäläd1b45d52012-04-05 21:35:18 +03003299 return -EINVAL;
3300 }
Rob Clarke3eb3252015-02-05 14:41:52 +00003301
3302 if (r->modifier[i] && !(r->flags & DRM_MODE_FB_MODIFIERS)) {
3303 DRM_DEBUG_KMS("bad fb modifier %llu for plane %d\n",
3304 r->modifier[i], i);
3305 return -EINVAL;
3306 }
Ville Syrjäläd1b45d52012-04-05 21:35:18 +03003307 }
3308
3309 return 0;
3310}
3311
Chris Wilson9a6f5132015-02-25 13:45:26 +00003312static struct drm_framebuffer *
3313internal_framebuffer_create(struct drm_device *dev,
3314 struct drm_mode_fb_cmd2 *r,
3315 struct drm_file *file_priv)
Matt Roperc394c2b2014-06-10 08:28:08 -07003316{
3317 struct drm_mode_config *config = &dev->mode_config;
3318 struct drm_framebuffer *fb;
3319 int ret;
3320
Rob Clarke3eb3252015-02-05 14:41:52 +00003321 if (r->flags & ~(DRM_MODE_FB_INTERLACED | DRM_MODE_FB_MODIFIERS)) {
Matt Roperc394c2b2014-06-10 08:28:08 -07003322 DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags);
3323 return ERR_PTR(-EINVAL);
3324 }
3325
3326 if ((config->min_width > r->width) || (r->width > config->max_width)) {
3327 DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n",
3328 r->width, config->min_width, config->max_width);
3329 return ERR_PTR(-EINVAL);
3330 }
3331 if ((config->min_height > r->height) || (r->height > config->max_height)) {
3332 DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n",
3333 r->height, config->min_height, config->max_height);
3334 return ERR_PTR(-EINVAL);
3335 }
3336
Rob Clarke3eb3252015-02-05 14:41:52 +00003337 if (r->flags & DRM_MODE_FB_MODIFIERS &&
3338 !dev->mode_config.allow_fb_modifiers) {
3339 DRM_DEBUG_KMS("driver does not support fb modifiers\n");
3340 return ERR_PTR(-EINVAL);
3341 }
3342
Matt Roperc394c2b2014-06-10 08:28:08 -07003343 ret = framebuffer_check(r);
3344 if (ret)
3345 return ERR_PTR(ret);
3346
3347 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
3348 if (IS_ERR(fb)) {
3349 DRM_DEBUG_KMS("could not create framebuffer\n");
3350 return fb;
3351 }
3352
Matt Roperc394c2b2014-06-10 08:28:08 -07003353 return fb;
3354}
3355
Jesse Barnes308e5bc2011-11-14 14:51:28 -08003356/**
3357 * drm_mode_addfb2 - add an FB to the graphics configuration
Daniel Vetter065a50ed2012-12-02 00:09:18 +01003358 * @dev: drm device for the ioctl
3359 * @data: data pointer for the ioctl
3360 * @file_priv: drm file for the ioctl call
Jesse Barnes308e5bc2011-11-14 14:51:28 -08003361 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003362 * Add a new FB to the specified CRTC, given a user request with format. This is
3363 * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers
3364 * and uses fourcc codes as pixel format specifiers.
Jesse Barnes308e5bc2011-11-14 14:51:28 -08003365 *
3366 * Called by the user via ioctl.
3367 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003368 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01003369 * Zero on success, negative errno on failure.
Jesse Barnes308e5bc2011-11-14 14:51:28 -08003370 */
3371int drm_mode_addfb2(struct drm_device *dev,
3372 void *data, struct drm_file *file_priv)
3373{
Chris Wilson9a6f5132015-02-25 13:45:26 +00003374 struct drm_mode_fb_cmd2 *r = data;
Dave Airlief453ba02008-11-07 14:05:41 -08003375 struct drm_framebuffer *fb;
Dave Airlief453ba02008-11-07 14:05:41 -08003376
Dave Airliefb3b06c2011-02-08 13:55:21 +10003377 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3378 return -EINVAL;
3379
Chris Wilson9a6f5132015-02-25 13:45:26 +00003380 fb = internal_framebuffer_create(dev, r, file_priv);
Matt Roperc394c2b2014-06-10 08:28:08 -07003381 if (IS_ERR(fb))
Daniel Vetter4b096ac2012-12-10 21:19:18 +01003382 return PTR_ERR(fb);
Dave Airlief453ba02008-11-07 14:05:41 -08003383
Chris Wilson9a6f5132015-02-25 13:45:26 +00003384 /* Transfer ownership to the filp for reaping on close */
3385
3386 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
3387 mutex_lock(&file_priv->fbs_lock);
3388 r->fb_id = fb->base.id;
3389 list_add(&fb->filp_head, &file_priv->fbs);
3390 mutex_unlock(&file_priv->fbs_lock);
3391
Matt Roperc394c2b2014-06-10 08:28:08 -07003392 return 0;
Dave Airlief453ba02008-11-07 14:05:41 -08003393}
3394
3395/**
3396 * drm_mode_rmfb - remove an FB from the configuration
Daniel Vetter065a50ed2012-12-02 00:09:18 +01003397 * @dev: drm device for the ioctl
3398 * @data: data pointer for the ioctl
3399 * @file_priv: drm file for the ioctl call
Dave Airlief453ba02008-11-07 14:05:41 -08003400 *
Dave Airlief453ba02008-11-07 14:05:41 -08003401 * Remove the FB specified by the user.
3402 *
3403 * Called by the user via ioctl.
3404 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003405 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01003406 * Zero on success, negative errno on failure.
Dave Airlief453ba02008-11-07 14:05:41 -08003407 */
3408int drm_mode_rmfb(struct drm_device *dev,
3409 void *data, struct drm_file *file_priv)
3410{
Dave Airlief453ba02008-11-07 14:05:41 -08003411 struct drm_framebuffer *fb = NULL;
3412 struct drm_framebuffer *fbl = NULL;
3413 uint32_t *id = data;
Dave Airlief453ba02008-11-07 14:05:41 -08003414 int found = 0;
3415
Dave Airliefb3b06c2011-02-08 13:55:21 +10003416 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3417 return -EINVAL;
3418
Daniel Vetter4b096ac2012-12-10 21:19:18 +01003419 mutex_lock(&file_priv->fbs_lock);
Daniel Vetter2b677e82012-12-10 21:16:05 +01003420 mutex_lock(&dev->mode_config.fb_lock);
3421 fb = __drm_framebuffer_lookup(dev, *id);
3422 if (!fb)
3423 goto fail_lookup;
3424
Dave Airlief453ba02008-11-07 14:05:41 -08003425 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
3426 if (fb == fbl)
3427 found = 1;
Daniel Vetter2b677e82012-12-10 21:16:05 +01003428 if (!found)
3429 goto fail_lookup;
3430
3431 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
3432 __drm_framebuffer_unregister(dev, fb);
Dave Airlief453ba02008-11-07 14:05:41 -08003433
Daniel Vetter4b096ac2012-12-10 21:19:18 +01003434 list_del_init(&fb->filp_head);
Daniel Vetter2b677e82012-12-10 21:16:05 +01003435 mutex_unlock(&dev->mode_config.fb_lock);
Daniel Vetter4b096ac2012-12-10 21:19:18 +01003436 mutex_unlock(&file_priv->fbs_lock);
Dave Airlief453ba02008-11-07 14:05:41 -08003437
Daniel Vetter4b096ac2012-12-10 21:19:18 +01003438 drm_framebuffer_remove(fb);
Daniel Vetter4b096ac2012-12-10 21:19:18 +01003439
Daniel Vetter2b677e82012-12-10 21:16:05 +01003440 return 0;
3441
3442fail_lookup:
3443 mutex_unlock(&dev->mode_config.fb_lock);
3444 mutex_unlock(&file_priv->fbs_lock);
3445
Ville Syrjälä37c4e702013-10-17 13:35:01 +03003446 return -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08003447}
3448
3449/**
3450 * drm_mode_getfb - get FB info
Daniel Vetter065a50ed2012-12-02 00:09:18 +01003451 * @dev: drm device for the ioctl
3452 * @data: data pointer for the ioctl
3453 * @file_priv: drm file for the ioctl call
Dave Airlief453ba02008-11-07 14:05:41 -08003454 *
Dave Airlief453ba02008-11-07 14:05:41 -08003455 * Lookup the FB given its ID and return info about it.
3456 *
3457 * Called by the user via ioctl.
3458 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003459 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01003460 * Zero on success, negative errno on failure.
Dave Airlief453ba02008-11-07 14:05:41 -08003461 */
3462int drm_mode_getfb(struct drm_device *dev,
3463 void *data, struct drm_file *file_priv)
3464{
3465 struct drm_mode_fb_cmd *r = data;
Dave Airlief453ba02008-11-07 14:05:41 -08003466 struct drm_framebuffer *fb;
Daniel Vetter58c0dca2012-12-13 23:06:08 +01003467 int ret;
Dave Airlief453ba02008-11-07 14:05:41 -08003468
Dave Airliefb3b06c2011-02-08 13:55:21 +10003469 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3470 return -EINVAL;
3471
Daniel Vetter786b99e2012-12-02 21:53:40 +01003472 fb = drm_framebuffer_lookup(dev, r->fb_id);
Daniel Vetter58c0dca2012-12-13 23:06:08 +01003473 if (!fb)
Ville Syrjälä37c4e702013-10-17 13:35:01 +03003474 return -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08003475
3476 r->height = fb->height;
3477 r->width = fb->width;
3478 r->depth = fb->depth;
3479 r->bpp = fb->bits_per_pixel;
Ville Syrjälä01f2c772011-12-20 00:06:49 +02003480 r->pitch = fb->pitches[0];
David Herrmann101b96f2013-08-26 15:16:49 +02003481 if (fb->funcs->create_handle) {
Thomas Hellstrom09f308f2014-03-13 10:00:42 +01003482 if (file_priv->is_master || capable(CAP_SYS_ADMIN) ||
Thomas Hellstrom43683052014-03-13 11:07:44 +01003483 drm_is_control_client(file_priv)) {
David Herrmann101b96f2013-08-26 15:16:49 +02003484 ret = fb->funcs->create_handle(fb, file_priv,
3485 &r->handle);
3486 } else {
3487 /* GET_FB() is an unprivileged ioctl so we must not
3488 * return a buffer-handle to non-master processes! For
3489 * backwards-compatibility reasons, we cannot make
3490 * GET_FB() privileged, so just return an invalid handle
3491 * for non-masters. */
3492 r->handle = 0;
3493 ret = 0;
3494 }
3495 } else {
Daniel Vetteraf26ef32012-12-13 23:07:50 +01003496 ret = -ENODEV;
David Herrmann101b96f2013-08-26 15:16:49 +02003497 }
Dave Airlief453ba02008-11-07 14:05:41 -08003498
Daniel Vetter58c0dca2012-12-13 23:06:08 +01003499 drm_framebuffer_unreference(fb);
3500
Dave Airlief453ba02008-11-07 14:05:41 -08003501 return ret;
3502}
3503
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003504/**
3505 * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB
3506 * @dev: drm device for the ioctl
3507 * @data: data pointer for the ioctl
3508 * @file_priv: drm file for the ioctl call
3509 *
3510 * Lookup the FB and flush out the damaged area supplied by userspace as a clip
3511 * rectangle list. Generic userspace which does frontbuffer rendering must call
3512 * this ioctl to flush out the changes on manual-update display outputs, e.g.
3513 * usb display-link, mipi manual update panels or edp panel self refresh modes.
3514 *
3515 * Modesetting drivers which always update the frontbuffer do not need to
3516 * implement the corresponding ->dirty framebuffer callback.
3517 *
3518 * Called by the user via ioctl.
3519 *
3520 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01003521 * Zero on success, negative errno on failure.
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003522 */
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00003523int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
3524 void *data, struct drm_file *file_priv)
3525{
3526 struct drm_clip_rect __user *clips_ptr;
3527 struct drm_clip_rect *clips = NULL;
3528 struct drm_mode_fb_dirty_cmd *r = data;
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00003529 struct drm_framebuffer *fb;
3530 unsigned flags;
3531 int num_clips;
Laurent Pinchart4a1b0712012-05-17 13:27:21 +02003532 int ret;
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00003533
Dave Airliefb3b06c2011-02-08 13:55:21 +10003534 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3535 return -EINVAL;
3536
Daniel Vetter786b99e2012-12-02 21:53:40 +01003537 fb = drm_framebuffer_lookup(dev, r->fb_id);
Daniel Vetter4ccf0972012-12-11 00:38:18 +01003538 if (!fb)
Ville Syrjälä37c4e702013-10-17 13:35:01 +03003539 return -ENOENT;
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00003540
3541 num_clips = r->num_clips;
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02003542 clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00003543
3544 if (!num_clips != !clips_ptr) {
3545 ret = -EINVAL;
3546 goto out_err1;
3547 }
3548
3549 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
3550
3551 /* If userspace annotates copy, clips must come in pairs */
3552 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
3553 ret = -EINVAL;
3554 goto out_err1;
3555 }
3556
3557 if (num_clips && clips_ptr) {
Xi Wanga5cd3352011-11-23 01:12:01 -05003558 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
3559 ret = -EINVAL;
3560 goto out_err1;
3561 }
Thierry Redingbd3f0ff2014-12-10 13:03:35 +01003562 clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00003563 if (!clips) {
3564 ret = -ENOMEM;
3565 goto out_err1;
3566 }
3567
3568 ret = copy_from_user(clips, clips_ptr,
3569 num_clips * sizeof(*clips));
Dan Carpentere902a352010-06-04 12:23:21 +02003570 if (ret) {
3571 ret = -EFAULT;
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00003572 goto out_err2;
Dan Carpentere902a352010-06-04 12:23:21 +02003573 }
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00003574 }
3575
3576 if (fb->funcs->dirty) {
Thomas Hellstrom02b00162010-10-05 12:43:02 +02003577 ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
3578 clips, num_clips);
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00003579 } else {
3580 ret = -ENOSYS;
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00003581 }
3582
3583out_err2:
3584 kfree(clips);
3585out_err1:
Daniel Vetter4ccf0972012-12-11 00:38:18 +01003586 drm_framebuffer_unreference(fb);
3587
Jakob Bornecrantz884840a2009-12-03 23:25:47 +00003588 return ret;
3589}
3590
3591
Dave Airlief453ba02008-11-07 14:05:41 -08003592/**
3593 * drm_fb_release - remove and free the FBs on this file
Daniel Vetter065a50ed2012-12-02 00:09:18 +01003594 * @priv: drm file for the ioctl
Dave Airlief453ba02008-11-07 14:05:41 -08003595 *
Dave Airlief453ba02008-11-07 14:05:41 -08003596 * Destroy all the FBs associated with @filp.
3597 *
3598 * Called by the user via ioctl.
3599 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003600 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01003601 * Zero on success, negative errno on failure.
Dave Airlief453ba02008-11-07 14:05:41 -08003602 */
Kristian Høgsbergea39f832009-02-12 14:37:56 -05003603void drm_fb_release(struct drm_file *priv)
Dave Airlief453ba02008-11-07 14:05:41 -08003604{
Dave Airlief453ba02008-11-07 14:05:41 -08003605 struct drm_device *dev = priv->minor->dev;
3606 struct drm_framebuffer *fb, *tfb;
3607
Daniel Vetter1b116292014-09-24 21:51:06 +02003608 /*
3609 * When the file gets released that means no one else can access the fb
Martin Perese2db7262014-12-09 07:24:04 +01003610 * list any more, so no need to grab fpriv->fbs_lock. And we need to
Daniel Vetter1b116292014-09-24 21:51:06 +02003611 * avoid upsetting lockdep since the universal cursor code adds a
3612 * framebuffer while holding mutex locks.
3613 *
3614 * Note that a real deadlock between fpriv->fbs_lock and the modeset
3615 * locks is impossible here since no one else but this function can get
3616 * at it any more.
3617 */
Dave Airlief453ba02008-11-07 14:05:41 -08003618 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
Daniel Vetter2b677e82012-12-10 21:16:05 +01003619
3620 mutex_lock(&dev->mode_config.fb_lock);
3621 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
3622 __drm_framebuffer_unregister(dev, fb);
3623 mutex_unlock(&dev->mode_config.fb_lock);
3624
Daniel Vetter4b096ac2012-12-10 21:19:18 +01003625 list_del_init(&fb->filp_head);
Daniel Vetter2b677e82012-12-10 21:16:05 +01003626
3627 /* This will also drop the fpriv->fbs reference. */
Rob Clarkf7eff602012-09-05 21:48:38 +00003628 drm_framebuffer_remove(fb);
Dave Airlief453ba02008-11-07 14:05:41 -08003629 }
Dave Airlief453ba02008-11-07 14:05:41 -08003630}
3631
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003632/**
3633 * drm_property_create - create a new property type
3634 * @dev: drm device
3635 * @flags: flags specifying the property type
3636 * @name: name of the property
3637 * @num_values: number of pre-defined values
3638 *
3639 * This creates a new generic drm property which can then be attached to a drm
3640 * object with drm_object_attach_property. The returned property object must be
3641 * freed with drm_property_destroy.
3642 *
Damien Lespiau3b5b9932014-10-31 14:39:11 +00003643 * Note that the DRM core keeps a per-device list of properties and that, if
3644 * drm_mode_config_cleanup() is called, it will destroy all properties created
3645 * by the driver.
3646 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003647 * Returns:
3648 * A pointer to the newly created property on success, NULL on failure.
3649 */
Dave Airlief453ba02008-11-07 14:05:41 -08003650struct drm_property *drm_property_create(struct drm_device *dev, int flags,
3651 const char *name, int num_values)
3652{
3653 struct drm_property *property = NULL;
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +02003654 int ret;
Dave Airlief453ba02008-11-07 14:05:41 -08003655
3656 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
3657 if (!property)
3658 return NULL;
3659
Rob Clark98f75de2014-05-30 11:37:03 -04003660 property->dev = dev;
3661
Dave Airlief453ba02008-11-07 14:05:41 -08003662 if (num_values) {
Thierry Redingbd3f0ff2014-12-10 13:03:35 +01003663 property->values = kcalloc(num_values, sizeof(uint64_t),
3664 GFP_KERNEL);
Dave Airlief453ba02008-11-07 14:05:41 -08003665 if (!property->values)
3666 goto fail;
3667 }
3668
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +02003669 ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
3670 if (ret)
3671 goto fail;
3672
Dave Airlief453ba02008-11-07 14:05:41 -08003673 property->flags = flags;
3674 property->num_values = num_values;
Daniel Vetter3758b342014-11-19 18:38:10 +01003675 INIT_LIST_HEAD(&property->enum_list);
Dave Airlief453ba02008-11-07 14:05:41 -08003676
Vinson Lee471dd2e2011-11-10 11:55:40 -08003677 if (name) {
Dave Airlief453ba02008-11-07 14:05:41 -08003678 strncpy(property->name, name, DRM_PROP_NAME_LEN);
Vinson Lee471dd2e2011-11-10 11:55:40 -08003679 property->name[DRM_PROP_NAME_LEN-1] = '\0';
3680 }
Dave Airlief453ba02008-11-07 14:05:41 -08003681
3682 list_add_tail(&property->head, &dev->mode_config.property_list);
Rob Clark5ea22f22014-05-30 11:34:01 -04003683
3684 WARN_ON(!drm_property_type_valid(property));
3685
Dave Airlief453ba02008-11-07 14:05:41 -08003686 return property;
3687fail:
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +02003688 kfree(property->values);
Dave Airlief453ba02008-11-07 14:05:41 -08003689 kfree(property);
3690 return NULL;
3691}
3692EXPORT_SYMBOL(drm_property_create);
3693
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003694/**
Thierry Reding2aa9d2b2014-06-26 21:37:20 +02003695 * drm_property_create_enum - create a new enumeration property type
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003696 * @dev: drm device
3697 * @flags: flags specifying the property type
3698 * @name: name of the property
3699 * @props: enumeration lists with property values
3700 * @num_values: number of pre-defined values
3701 *
3702 * This creates a new generic drm property which can then be attached to a drm
3703 * object with drm_object_attach_property. The returned property object must be
3704 * freed with drm_property_destroy.
3705 *
3706 * Userspace is only allowed to set one of the predefined values for enumeration
3707 * properties.
3708 *
3709 * Returns:
3710 * A pointer to the newly created property on success, NULL on failure.
3711 */
Sascha Hauer4a67d392012-02-06 10:58:17 +01003712struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
3713 const char *name,
3714 const struct drm_prop_enum_list *props,
3715 int num_values)
3716{
3717 struct drm_property *property;
3718 int i, ret;
3719
3720 flags |= DRM_MODE_PROP_ENUM;
3721
3722 property = drm_property_create(dev, flags, name, num_values);
3723 if (!property)
3724 return NULL;
3725
3726 for (i = 0; i < num_values; i++) {
3727 ret = drm_property_add_enum(property, i,
3728 props[i].type,
3729 props[i].name);
3730 if (ret) {
3731 drm_property_destroy(dev, property);
3732 return NULL;
3733 }
3734 }
3735
3736 return property;
3737}
3738EXPORT_SYMBOL(drm_property_create_enum);
3739
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003740/**
Thierry Reding2aa9d2b2014-06-26 21:37:20 +02003741 * drm_property_create_bitmask - create a new bitmask property type
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003742 * @dev: drm device
3743 * @flags: flags specifying the property type
3744 * @name: name of the property
3745 * @props: enumeration lists with property bitflags
Daniel Vetter295ee852014-07-30 14:23:44 +02003746 * @num_props: size of the @props array
3747 * @supported_bits: bitmask of all supported enumeration values
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003748 *
Daniel Vetter295ee852014-07-30 14:23:44 +02003749 * This creates a new bitmask drm property which can then be attached to a drm
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003750 * object with drm_object_attach_property. The returned property object must be
3751 * freed with drm_property_destroy.
3752 *
3753 * Compared to plain enumeration properties userspace is allowed to set any
3754 * or'ed together combination of the predefined property bitflag values
3755 *
3756 * Returns:
3757 * A pointer to the newly created property on success, NULL on failure.
3758 */
Rob Clark49e27542012-05-17 02:23:26 -06003759struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
3760 int flags, const char *name,
3761 const struct drm_prop_enum_list *props,
Ville Syrjälä7689ffb2014-07-08 10:31:52 +05303762 int num_props,
3763 uint64_t supported_bits)
Rob Clark49e27542012-05-17 02:23:26 -06003764{
3765 struct drm_property *property;
Ville Syrjälä7689ffb2014-07-08 10:31:52 +05303766 int i, ret, index = 0;
3767 int num_values = hweight64(supported_bits);
Rob Clark49e27542012-05-17 02:23:26 -06003768
3769 flags |= DRM_MODE_PROP_BITMASK;
3770
3771 property = drm_property_create(dev, flags, name, num_values);
3772 if (!property)
3773 return NULL;
Ville Syrjälä7689ffb2014-07-08 10:31:52 +05303774 for (i = 0; i < num_props; i++) {
3775 if (!(supported_bits & (1ULL << props[i].type)))
3776 continue;
Rob Clark49e27542012-05-17 02:23:26 -06003777
Ville Syrjälä7689ffb2014-07-08 10:31:52 +05303778 if (WARN_ON(index >= num_values)) {
3779 drm_property_destroy(dev, property);
3780 return NULL;
3781 }
3782
3783 ret = drm_property_add_enum(property, index++,
Rob Clark49e27542012-05-17 02:23:26 -06003784 props[i].type,
3785 props[i].name);
3786 if (ret) {
3787 drm_property_destroy(dev, property);
3788 return NULL;
3789 }
3790 }
3791
3792 return property;
3793}
3794EXPORT_SYMBOL(drm_property_create_bitmask);
3795
Rob Clarkebc44cf2012-09-12 22:22:31 -05003796static struct drm_property *property_create_range(struct drm_device *dev,
3797 int flags, const char *name,
3798 uint64_t min, uint64_t max)
3799{
3800 struct drm_property *property;
3801
3802 property = drm_property_create(dev, flags, name, 2);
3803 if (!property)
3804 return NULL;
3805
3806 property->values[0] = min;
3807 property->values[1] = max;
3808
3809 return property;
3810}
3811
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003812/**
Daniel Vetter960cd9d2015-01-21 08:47:38 +01003813 * drm_property_create_range - create a new unsigned ranged property type
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003814 * @dev: drm device
3815 * @flags: flags specifying the property type
3816 * @name: name of the property
3817 * @min: minimum value of the property
3818 * @max: maximum value of the property
3819 *
3820 * This creates a new generic drm property which can then be attached to a drm
3821 * object with drm_object_attach_property. The returned property object must be
3822 * freed with drm_property_destroy.
3823 *
Daniel Vetter960cd9d2015-01-21 08:47:38 +01003824 * Userspace is allowed to set any unsigned integer value in the (min, max)
3825 * range inclusive.
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003826 *
3827 * Returns:
3828 * A pointer to the newly created property on success, NULL on failure.
3829 */
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01003830struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
3831 const char *name,
3832 uint64_t min, uint64_t max)
3833{
Rob Clarkebc44cf2012-09-12 22:22:31 -05003834 return property_create_range(dev, DRM_MODE_PROP_RANGE | flags,
3835 name, min, max);
Sascha Hauerd9bc3c02012-02-06 10:58:18 +01003836}
3837EXPORT_SYMBOL(drm_property_create_range);
3838
Daniel Vetter960cd9d2015-01-21 08:47:38 +01003839/**
3840 * drm_property_create_signed_range - create a new signed ranged property type
3841 * @dev: drm device
3842 * @flags: flags specifying the property type
3843 * @name: name of the property
3844 * @min: minimum value of the property
3845 * @max: maximum value of the property
3846 *
3847 * This creates a new generic drm property which can then be attached to a drm
3848 * object with drm_object_attach_property. The returned property object must be
3849 * freed with drm_property_destroy.
3850 *
3851 * Userspace is allowed to set any signed integer value in the (min, max)
3852 * range inclusive.
3853 *
3854 * Returns:
3855 * A pointer to the newly created property on success, NULL on failure.
3856 */
Rob Clarkebc44cf2012-09-12 22:22:31 -05003857struct drm_property *drm_property_create_signed_range(struct drm_device *dev,
3858 int flags, const char *name,
3859 int64_t min, int64_t max)
3860{
3861 return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags,
3862 name, I642U64(min), I642U64(max));
3863}
3864EXPORT_SYMBOL(drm_property_create_signed_range);
3865
Daniel Vetter960cd9d2015-01-21 08:47:38 +01003866/**
3867 * drm_property_create_object - create a new object property type
3868 * @dev: drm device
3869 * @flags: flags specifying the property type
3870 * @name: name of the property
3871 * @type: object type from DRM_MODE_OBJECT_* defines
3872 *
3873 * This creates a new generic drm property which can then be attached to a drm
3874 * object with drm_object_attach_property. The returned property object must be
3875 * freed with drm_property_destroy.
3876 *
3877 * Userspace is only allowed to set this to any property value of the given
3878 * @type. Only useful for atomic properties, which is enforced.
3879 *
3880 * Returns:
3881 * A pointer to the newly created property on success, NULL on failure.
3882 */
Rob Clark98f75de2014-05-30 11:37:03 -04003883struct drm_property *drm_property_create_object(struct drm_device *dev,
3884 int flags, const char *name, uint32_t type)
3885{
3886 struct drm_property *property;
3887
3888 flags |= DRM_MODE_PROP_OBJECT;
3889
Daniel Vetter960cd9d2015-01-21 08:47:38 +01003890 if (WARN_ON(!(flags & DRM_MODE_PROP_ATOMIC)))
3891 return NULL;
3892
Rob Clark98f75de2014-05-30 11:37:03 -04003893 property = drm_property_create(dev, flags, name, 1);
3894 if (!property)
3895 return NULL;
3896
3897 property->values[0] = type;
3898
3899 return property;
3900}
3901EXPORT_SYMBOL(drm_property_create_object);
3902
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003903/**
Daniel Vetter960cd9d2015-01-21 08:47:38 +01003904 * drm_property_create_bool - create a new boolean property type
3905 * @dev: drm device
3906 * @flags: flags specifying the property type
3907 * @name: name of the property
3908 *
3909 * This creates a new generic drm property which can then be attached to a drm
3910 * object with drm_object_attach_property. The returned property object must be
3911 * freed with drm_property_destroy.
3912 *
3913 * This is implemented as a ranged property with only {0, 1} as valid values.
3914 *
3915 * Returns:
3916 * A pointer to the newly created property on success, NULL on failure.
3917 */
3918struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags,
3919 const char *name)
3920{
3921 return drm_property_create_range(dev, flags, name, 0, 1);
3922}
3923EXPORT_SYMBOL(drm_property_create_bool);
3924
3925/**
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003926 * drm_property_add_enum - add a possible value to an enumeration property
3927 * @property: enumeration property to change
3928 * @index: index of the new enumeration
3929 * @value: value of the new enumeration
3930 * @name: symbolic name of the new enumeration
3931 *
3932 * This functions adds enumerations to a property.
3933 *
3934 * It's use is deprecated, drivers should use one of the more specific helpers
3935 * to directly create the property with all enumerations already attached.
3936 *
3937 * Returns:
3938 * Zero on success, error code on failure.
3939 */
Dave Airlief453ba02008-11-07 14:05:41 -08003940int drm_property_add_enum(struct drm_property *property, int index,
3941 uint64_t value, const char *name)
3942{
3943 struct drm_property_enum *prop_enum;
3944
Rob Clark5ea22f22014-05-30 11:34:01 -04003945 if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) ||
3946 drm_property_type_is(property, DRM_MODE_PROP_BITMASK)))
Rob Clark49e27542012-05-17 02:23:26 -06003947 return -EINVAL;
3948
3949 /*
3950 * Bitmask enum properties have the additional constraint of values
3951 * from 0 to 63
3952 */
Rob Clark5ea22f22014-05-30 11:34:01 -04003953 if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) &&
3954 (value > 63))
Dave Airlief453ba02008-11-07 14:05:41 -08003955 return -EINVAL;
3956
Daniel Vetter3758b342014-11-19 18:38:10 +01003957 if (!list_empty(&property->enum_list)) {
3958 list_for_each_entry(prop_enum, &property->enum_list, head) {
Dave Airlief453ba02008-11-07 14:05:41 -08003959 if (prop_enum->value == value) {
3960 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
3961 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
3962 return 0;
3963 }
3964 }
3965 }
3966
3967 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
3968 if (!prop_enum)
3969 return -ENOMEM;
3970
3971 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
3972 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
3973 prop_enum->value = value;
3974
3975 property->values[index] = value;
Daniel Vetter3758b342014-11-19 18:38:10 +01003976 list_add_tail(&prop_enum->head, &property->enum_list);
Dave Airlief453ba02008-11-07 14:05:41 -08003977 return 0;
3978}
3979EXPORT_SYMBOL(drm_property_add_enum);
3980
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01003981/**
3982 * drm_property_destroy - destroy a drm property
3983 * @dev: drm device
3984 * @property: property to destry
3985 *
3986 * This function frees a property including any attached resources like
3987 * enumeration values.
3988 */
Dave Airlief453ba02008-11-07 14:05:41 -08003989void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
3990{
3991 struct drm_property_enum *prop_enum, *pt;
3992
Daniel Vetter3758b342014-11-19 18:38:10 +01003993 list_for_each_entry_safe(prop_enum, pt, &property->enum_list, head) {
Dave Airlief453ba02008-11-07 14:05:41 -08003994 list_del(&prop_enum->head);
3995 kfree(prop_enum);
3996 }
3997
3998 if (property->num_values)
3999 kfree(property->values);
4000 drm_mode_object_put(dev, &property->base);
4001 list_del(&property->head);
4002 kfree(property);
4003}
4004EXPORT_SYMBOL(drm_property_destroy);
4005
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004006/**
4007 * drm_object_attach_property - attach a property to a modeset object
4008 * @obj: drm modeset object
4009 * @property: property to attach
4010 * @init_val: initial value of the property
4011 *
4012 * This attaches the given property to the modeset object with the given initial
4013 * value. Currently this function cannot fail since the properties are stored in
4014 * a statically sized array.
4015 */
Paulo Zanonic5431882012-05-15 18:09:02 -03004016void drm_object_attach_property(struct drm_mode_object *obj,
4017 struct drm_property *property,
4018 uint64_t init_val)
4019{
Paulo Zanoni7f88a9b2012-05-15 18:09:04 -03004020 int count = obj->properties->count;
Paulo Zanonic5431882012-05-15 18:09:02 -03004021
Paulo Zanoni7f88a9b2012-05-15 18:09:04 -03004022 if (count == DRM_OBJECT_MAX_PROPERTY) {
4023 WARN(1, "Failed to attach object property (type: 0x%x). Please "
4024 "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time "
4025 "you see this message on the same object type.\n",
4026 obj->type);
4027 return;
Paulo Zanonic5431882012-05-15 18:09:02 -03004028 }
4029
Rob Clarkb17cd752014-12-16 18:05:30 -05004030 obj->properties->properties[count] = property;
Paulo Zanoni7f88a9b2012-05-15 18:09:04 -03004031 obj->properties->values[count] = init_val;
4032 obj->properties->count++;
Rob Clark88a48e22014-12-18 16:01:50 -05004033 if (property->flags & DRM_MODE_PROP_ATOMIC)
4034 obj->properties->atomic_count++;
Paulo Zanonic5431882012-05-15 18:09:02 -03004035}
4036EXPORT_SYMBOL(drm_object_attach_property);
4037
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004038/**
4039 * drm_object_property_set_value - set the value of a property
4040 * @obj: drm mode object to set property value for
4041 * @property: property to set
4042 * @val: value the property should be set to
4043 *
4044 * This functions sets a given property on a given object. This function only
4045 * changes the software state of the property, it does not call into the
4046 * driver's ->set_property callback.
4047 *
4048 * Returns:
4049 * Zero on success, error code on failure.
4050 */
Paulo Zanonic5431882012-05-15 18:09:02 -03004051int drm_object_property_set_value(struct drm_mode_object *obj,
4052 struct drm_property *property, uint64_t val)
4053{
4054 int i;
4055
Paulo Zanoni7f88a9b2012-05-15 18:09:04 -03004056 for (i = 0; i < obj->properties->count; i++) {
Rob Clarkb17cd752014-12-16 18:05:30 -05004057 if (obj->properties->properties[i] == property) {
Paulo Zanonic5431882012-05-15 18:09:02 -03004058 obj->properties->values[i] = val;
4059 return 0;
4060 }
4061 }
4062
4063 return -EINVAL;
4064}
4065EXPORT_SYMBOL(drm_object_property_set_value);
4066
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004067/**
4068 * drm_object_property_get_value - retrieve the value of a property
4069 * @obj: drm mode object to get property value from
4070 * @property: property to retrieve
4071 * @val: storage for the property value
4072 *
4073 * This function retrieves the softare state of the given property for the given
4074 * property. Since there is no driver callback to retrieve the current property
4075 * value this might be out of sync with the hardware, depending upon the driver
4076 * and property.
4077 *
4078 * Returns:
4079 * Zero on success, error code on failure.
4080 */
Paulo Zanonic5431882012-05-15 18:09:02 -03004081int drm_object_property_get_value(struct drm_mode_object *obj,
4082 struct drm_property *property, uint64_t *val)
4083{
4084 int i;
4085
Rob Clark88a48e22014-12-18 16:01:50 -05004086 /* read-only properties bypass atomic mechanism and still store
4087 * their value in obj->properties->values[].. mostly to avoid
4088 * having to deal w/ EDID and similar props in atomic paths:
4089 */
4090 if (drm_core_check_feature(property->dev, DRIVER_ATOMIC) &&
4091 !(property->flags & DRM_MODE_PROP_IMMUTABLE))
4092 return drm_atomic_get_property(obj, property, val);
4093
Paulo Zanoni7f88a9b2012-05-15 18:09:04 -03004094 for (i = 0; i < obj->properties->count; i++) {
Rob Clarkb17cd752014-12-16 18:05:30 -05004095 if (obj->properties->properties[i] == property) {
Paulo Zanonic5431882012-05-15 18:09:02 -03004096 *val = obj->properties->values[i];
4097 return 0;
4098 }
4099 }
4100
4101 return -EINVAL;
4102}
4103EXPORT_SYMBOL(drm_object_property_get_value);
4104
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004105/**
Daniel Vetter1a498632014-11-19 18:38:09 +01004106 * drm_mode_getproperty_ioctl - get the property metadata
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004107 * @dev: DRM device
4108 * @data: ioctl data
4109 * @file_priv: DRM file info
4110 *
Daniel Vetter1a498632014-11-19 18:38:09 +01004111 * This function retrieves the metadata for a given property, like the different
4112 * possible values for an enum property or the limits for a range property.
4113 *
4114 * Blob properties are special
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004115 *
4116 * Called by the user via ioctl.
4117 *
4118 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01004119 * Zero on success, negative errno on failure.
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004120 */
Dave Airlief453ba02008-11-07 14:05:41 -08004121int drm_mode_getproperty_ioctl(struct drm_device *dev,
4122 void *data, struct drm_file *file_priv)
4123{
Dave Airlief453ba02008-11-07 14:05:41 -08004124 struct drm_mode_get_property *out_resp = data;
4125 struct drm_property *property;
4126 int enum_count = 0;
Dave Airlief453ba02008-11-07 14:05:41 -08004127 int value_count = 0;
4128 int ret = 0, i;
4129 int copied;
4130 struct drm_property_enum *prop_enum;
4131 struct drm_mode_property_enum __user *enum_ptr;
Dave Airlief453ba02008-11-07 14:05:41 -08004132 uint64_t __user *values_ptr;
Dave Airlief453ba02008-11-07 14:05:41 -08004133
Dave Airliefb3b06c2011-02-08 13:55:21 +10004134 if (!drm_core_check_feature(dev, DRIVER_MODESET))
4135 return -EINVAL;
4136
Daniel Vetter84849902012-12-02 00:28:11 +01004137 drm_modeset_lock_all(dev);
Rob Clarka2b34e22013-10-05 16:36:52 -04004138 property = drm_property_find(dev, out_resp->prop_id);
4139 if (!property) {
Ville Syrjäläf27657f2013-10-17 13:35:00 +03004140 ret = -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08004141 goto done;
4142 }
Dave Airlief453ba02008-11-07 14:05:41 -08004143
Rob Clark5ea22f22014-05-30 11:34:01 -04004144 if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) ||
4145 drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) {
Daniel Vetter3758b342014-11-19 18:38:10 +01004146 list_for_each_entry(prop_enum, &property->enum_list, head)
Dave Airlief453ba02008-11-07 14:05:41 -08004147 enum_count++;
Dave Airlief453ba02008-11-07 14:05:41 -08004148 }
4149
4150 value_count = property->num_values;
4151
4152 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
4153 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
4154 out_resp->flags = property->flags;
4155
4156 if ((out_resp->count_values >= value_count) && value_count) {
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02004157 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
Dave Airlief453ba02008-11-07 14:05:41 -08004158 for (i = 0; i < value_count; i++) {
4159 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
4160 ret = -EFAULT;
4161 goto done;
4162 }
4163 }
4164 }
4165 out_resp->count_values = value_count;
4166
Rob Clark5ea22f22014-05-30 11:34:01 -04004167 if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) ||
4168 drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) {
Dave Airlief453ba02008-11-07 14:05:41 -08004169 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
4170 copied = 0;
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02004171 enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
Daniel Vetter3758b342014-11-19 18:38:10 +01004172 list_for_each_entry(prop_enum, &property->enum_list, head) {
Dave Airlief453ba02008-11-07 14:05:41 -08004173
4174 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
4175 ret = -EFAULT;
4176 goto done;
4177 }
4178
4179 if (copy_to_user(&enum_ptr[copied].name,
4180 &prop_enum->name, DRM_PROP_NAME_LEN)) {
4181 ret = -EFAULT;
4182 goto done;
4183 }
4184 copied++;
4185 }
4186 }
4187 out_resp->count_enum_blobs = enum_count;
4188 }
4189
Daniel Vetter3758b342014-11-19 18:38:10 +01004190 /*
4191 * NOTE: The idea seems to have been to use this to read all the blob
4192 * property values. But nothing ever added them to the corresponding
4193 * list, userspace always used the special-purpose get_blob ioctl to
4194 * read the value for a blob property. It also doesn't make a lot of
4195 * sense to return values here when everything else is just metadata for
4196 * the property itself.
4197 */
4198 if (drm_property_type_is(property, DRM_MODE_PROP_BLOB))
4199 out_resp->count_enum_blobs = 0;
Dave Airlief453ba02008-11-07 14:05:41 -08004200done:
Daniel Vetter84849902012-12-02 00:28:11 +01004201 drm_modeset_unlock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08004202 return ret;
4203}
4204
Thierry Redingecbbe592014-05-13 11:36:13 +02004205static struct drm_property_blob *
4206drm_property_create_blob(struct drm_device *dev, size_t length,
Thierry Reding12e6cec2014-05-13 11:38:36 +02004207 const void *data)
Dave Airlief453ba02008-11-07 14:05:41 -08004208{
4209 struct drm_property_blob *blob;
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +02004210 int ret;
Dave Airlief453ba02008-11-07 14:05:41 -08004211
4212 if (!length || !data)
4213 return NULL;
4214
4215 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
4216 if (!blob)
4217 return NULL;
4218
Ville Syrjälä6bfc56a2012-03-13 12:35:48 +02004219 ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
4220 if (ret) {
4221 kfree(blob);
4222 return NULL;
4223 }
4224
Dave Airlief453ba02008-11-07 14:05:41 -08004225 blob->length = length;
4226
4227 memcpy(blob->data, data, length);
4228
Dave Airlief453ba02008-11-07 14:05:41 -08004229 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
4230 return blob;
4231}
4232
4233static void drm_property_destroy_blob(struct drm_device *dev,
4234 struct drm_property_blob *blob)
4235{
4236 drm_mode_object_put(dev, &blob->base);
4237 list_del(&blob->head);
4238 kfree(blob);
4239}
4240
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004241/**
4242 * drm_mode_getblob_ioctl - get the contents of a blob property value
4243 * @dev: DRM device
4244 * @data: ioctl data
4245 * @file_priv: DRM file info
4246 *
4247 * This function retrieves the contents of a blob property. The value stored in
4248 * an object's blob property is just a normal modeset object id.
4249 *
4250 * Called by the user via ioctl.
4251 *
4252 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01004253 * Zero on success, negative errno on failure.
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004254 */
Dave Airlief453ba02008-11-07 14:05:41 -08004255int drm_mode_getblob_ioctl(struct drm_device *dev,
4256 void *data, struct drm_file *file_priv)
4257{
Dave Airlief453ba02008-11-07 14:05:41 -08004258 struct drm_mode_get_blob *out_resp = data;
4259 struct drm_property_blob *blob;
4260 int ret = 0;
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02004261 void __user *blob_ptr;
Dave Airlief453ba02008-11-07 14:05:41 -08004262
Dave Airliefb3b06c2011-02-08 13:55:21 +10004263 if (!drm_core_check_feature(dev, DRIVER_MODESET))
4264 return -EINVAL;
4265
Daniel Vetter84849902012-12-02 00:28:11 +01004266 drm_modeset_lock_all(dev);
Rob Clarka2b34e22013-10-05 16:36:52 -04004267 blob = drm_property_blob_find(dev, out_resp->blob_id);
4268 if (!blob) {
Ville Syrjäläf27657f2013-10-17 13:35:00 +03004269 ret = -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08004270 goto done;
4271 }
Dave Airlief453ba02008-11-07 14:05:41 -08004272
4273 if (out_resp->length == blob->length) {
Ville Syrjälä81f6c7f2011-12-20 00:06:42 +02004274 blob_ptr = (void __user *)(unsigned long)out_resp->data;
Thierry Reding4dfd9092014-12-10 13:03:34 +01004275 if (copy_to_user(blob_ptr, blob->data, blob->length)) {
Dave Airlief453ba02008-11-07 14:05:41 -08004276 ret = -EFAULT;
4277 goto done;
4278 }
4279 }
4280 out_resp->length = blob->length;
4281
4282done:
Daniel Vetter84849902012-12-02 00:28:11 +01004283 drm_modeset_unlock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08004284 return ret;
4285}
4286
Dave Airliecc7096f2014-10-22 12:03:04 +10004287/**
4288 * drm_mode_connector_set_path_property - set tile property on connector
4289 * @connector: connector to set property on.
4290 * @path: path to use for property.
4291 *
4292 * This creates a property to expose to userspace to specify a
4293 * connector path. This is mainly used for DisplayPort MST where
4294 * connectors have a topology and we want to allow userspace to give
4295 * them more meaningful names.
4296 *
4297 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01004298 * Zero on success, negative errno on failure.
Dave Airliecc7096f2014-10-22 12:03:04 +10004299 */
Dave Airlie43aba7e2014-06-05 14:01:31 +10004300int drm_mode_connector_set_path_property(struct drm_connector *connector,
Thierry Reding12e6cec2014-05-13 11:38:36 +02004301 const char *path)
Dave Airlie43aba7e2014-06-05 14:01:31 +10004302{
4303 struct drm_device *dev = connector->dev;
Thierry Redingecbbe592014-05-13 11:36:13 +02004304 size_t size = strlen(path) + 1;
4305 int ret;
Dave Airlie43aba7e2014-06-05 14:01:31 +10004306
4307 connector->path_blob_ptr = drm_property_create_blob(connector->dev,
4308 size, path);
4309 if (!connector->path_blob_ptr)
4310 return -EINVAL;
4311
4312 ret = drm_object_property_set_value(&connector->base,
4313 dev->mode_config.path_property,
4314 connector->path_blob_ptr->base.id);
4315 return ret;
4316}
4317EXPORT_SYMBOL(drm_mode_connector_set_path_property);
4318
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004319/**
Dave Airlie6f134d72014-10-20 16:30:50 +10004320 * drm_mode_connector_set_tile_property - set tile property on connector
4321 * @connector: connector to set property on.
4322 *
4323 * This looks up the tile information for a connector, and creates a
4324 * property for userspace to parse if it exists. The property is of
4325 * the form of 8 integers using ':' as a separator.
4326 *
4327 * Returns:
4328 * Zero on success, errno on failure.
4329 */
4330int drm_mode_connector_set_tile_property(struct drm_connector *connector)
4331{
4332 struct drm_device *dev = connector->dev;
4333 int ret, size;
4334 char tile[256];
4335
4336 if (connector->tile_blob_ptr)
4337 drm_property_destroy_blob(dev, connector->tile_blob_ptr);
4338
4339 if (!connector->has_tile) {
4340 connector->tile_blob_ptr = NULL;
4341 ret = drm_object_property_set_value(&connector->base,
4342 dev->mode_config.tile_property, 0);
4343 return ret;
4344 }
4345
4346 snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d",
4347 connector->tile_group->id, connector->tile_is_single_monitor,
4348 connector->num_h_tile, connector->num_v_tile,
4349 connector->tile_h_loc, connector->tile_v_loc,
4350 connector->tile_h_size, connector->tile_v_size);
4351 size = strlen(tile) + 1;
4352
4353 connector->tile_blob_ptr = drm_property_create_blob(connector->dev,
4354 size, tile);
4355 if (!connector->tile_blob_ptr)
4356 return -EINVAL;
4357
4358 ret = drm_object_property_set_value(&connector->base,
4359 dev->mode_config.tile_property,
4360 connector->tile_blob_ptr->base.id);
4361 return ret;
4362}
4363EXPORT_SYMBOL(drm_mode_connector_set_tile_property);
4364
4365/**
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004366 * drm_mode_connector_update_edid_property - update the edid property of a connector
4367 * @connector: drm connector
4368 * @edid: new value of the edid property
4369 *
4370 * This function creates a new blob modeset object and assigns its id to the
4371 * connector's edid property.
4372 *
4373 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01004374 * Zero on success, negative errno on failure.
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004375 */
Dave Airlief453ba02008-11-07 14:05:41 -08004376int drm_mode_connector_update_edid_property(struct drm_connector *connector,
Thierry Reding12e6cec2014-05-13 11:38:36 +02004377 const struct edid *edid)
Dave Airlief453ba02008-11-07 14:05:41 -08004378{
4379 struct drm_device *dev = connector->dev;
Thierry Redingecbbe592014-05-13 11:36:13 +02004380 size_t size;
4381 int ret;
Dave Airlief453ba02008-11-07 14:05:41 -08004382
Thomas Wood4cf2b282014-06-18 17:52:33 +01004383 /* ignore requests to set edid when overridden */
4384 if (connector->override_edid)
4385 return 0;
4386
Dave Airlief453ba02008-11-07 14:05:41 -08004387 if (connector->edid_blob_ptr)
4388 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
4389
4390 /* Delete edid, when there is none. */
4391 if (!edid) {
4392 connector->edid_blob_ptr = NULL;
Rob Clark58495562012-10-11 20:50:56 -05004393 ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0);
Dave Airlief453ba02008-11-07 14:05:41 -08004394 return ret;
4395 }
4396
Adam Jackson7466f4c2010-03-29 21:43:23 +00004397 size = EDID_LENGTH * (1 + edid->extensions);
4398 connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
4399 size, edid);
Sachin Kamate655d122012-11-19 09:44:57 +00004400 if (!connector->edid_blob_ptr)
4401 return -EINVAL;
Dave Airlief453ba02008-11-07 14:05:41 -08004402
Rob Clark58495562012-10-11 20:50:56 -05004403 ret = drm_object_property_set_value(&connector->base,
Dave Airlief453ba02008-11-07 14:05:41 -08004404 dev->mode_config.edid_property,
4405 connector->edid_blob_ptr->base.id);
4406
4407 return ret;
4408}
4409EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
4410
Rob Clark3843e712014-12-16 18:05:29 -05004411/* Some properties could refer to dynamic refcnt'd objects, or things that
4412 * need special locking to handle lifetime issues (ie. to ensure the prop
4413 * value doesn't become invalid part way through the property update due to
4414 * race). The value returned by reference via 'obj' should be passed back
4415 * to drm_property_change_valid_put() after the property is set (and the
4416 * object to which the property is attached has a chance to take it's own
4417 * reference).
4418 */
Rob Clarkd34f20d2014-12-18 16:01:56 -05004419bool drm_property_change_valid_get(struct drm_property *property,
Rob Clark3843e712014-12-16 18:05:29 -05004420 uint64_t value, struct drm_mode_object **ref)
Paulo Zanoni26a34812012-05-15 18:08:59 -03004421{
Thierry Reding2ca651d2014-12-10 13:03:39 +01004422 int i;
4423
Paulo Zanoni26a34812012-05-15 18:08:59 -03004424 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
4425 return false;
Rob Clark5ea22f22014-05-30 11:34:01 -04004426
Rob Clark3843e712014-12-16 18:05:29 -05004427 *ref = NULL;
4428
Rob Clark5ea22f22014-05-30 11:34:01 -04004429 if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) {
Paulo Zanoni26a34812012-05-15 18:08:59 -03004430 if (value < property->values[0] || value > property->values[1])
4431 return false;
4432 return true;
Rob Clarkebc44cf2012-09-12 22:22:31 -05004433 } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) {
4434 int64_t svalue = U642I64(value);
Thierry Reding4dfd9092014-12-10 13:03:34 +01004435
Rob Clarkebc44cf2012-09-12 22:22:31 -05004436 if (svalue < U642I64(property->values[0]) ||
4437 svalue > U642I64(property->values[1]))
4438 return false;
4439 return true;
Rob Clark5ea22f22014-05-30 11:34:01 -04004440 } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) {
Ville Syrjälä592c20e2012-05-24 20:53:58 +03004441 uint64_t valid_mask = 0;
Thierry Reding4dfd9092014-12-10 13:03:34 +01004442
Rob Clark49e27542012-05-17 02:23:26 -06004443 for (i = 0; i < property->num_values; i++)
4444 valid_mask |= (1ULL << property->values[i]);
4445 return !(value & ~valid_mask);
Rob Clark5ea22f22014-05-30 11:34:01 -04004446 } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) {
Ville Syrjäläc4a56752012-10-25 18:05:06 +00004447 /* Only the driver knows */
4448 return true;
Rob Clark98f75de2014-05-30 11:37:03 -04004449 } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) {
Rob Clark98f75de2014-05-30 11:37:03 -04004450 /* a zero value for an object property translates to null: */
4451 if (value == 0)
4452 return true;
Rob Clark3843e712014-12-16 18:05:29 -05004453
4454 /* handle refcnt'd objects specially: */
4455 if (property->values[0] == DRM_MODE_OBJECT_FB) {
4456 struct drm_framebuffer *fb;
4457 fb = drm_framebuffer_lookup(property->dev, value);
4458 if (fb) {
4459 *ref = &fb->base;
4460 return true;
4461 } else {
4462 return false;
4463 }
4464 } else {
4465 return _object_find(property->dev, value, property->values[0]) != NULL;
4466 }
Paulo Zanoni26a34812012-05-15 18:08:59 -03004467 }
Thierry Reding2ca651d2014-12-10 13:03:39 +01004468
4469 for (i = 0; i < property->num_values; i++)
4470 if (property->values[i] == value)
4471 return true;
4472 return false;
Paulo Zanoni26a34812012-05-15 18:08:59 -03004473}
4474
Rob Clarkd34f20d2014-12-18 16:01:56 -05004475void drm_property_change_valid_put(struct drm_property *property,
Rob Clark3843e712014-12-16 18:05:29 -05004476 struct drm_mode_object *ref)
4477{
4478 if (!ref)
4479 return;
4480
4481 if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) {
4482 if (property->values[0] == DRM_MODE_OBJECT_FB)
4483 drm_framebuffer_unreference(obj_to_fb(ref));
4484 }
4485}
4486
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004487/**
4488 * drm_mode_connector_property_set_ioctl - set the current value of a connector property
4489 * @dev: DRM device
4490 * @data: ioctl data
4491 * @file_priv: DRM file info
4492 *
4493 * This function sets the current value for a connectors's property. It also
4494 * calls into a driver's ->set_property callback to update the hardware state
4495 *
4496 * Called by the user via ioctl.
4497 *
4498 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01004499 * Zero on success, negative errno on failure.
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004500 */
Dave Airlief453ba02008-11-07 14:05:41 -08004501int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
4502 void *data, struct drm_file *file_priv)
4503{
Paulo Zanoni0057d8d2012-05-15 18:09:03 -03004504 struct drm_mode_connector_set_property *conn_set_prop = data;
4505 struct drm_mode_obj_set_property obj_set_prop = {
4506 .value = conn_set_prop->value,
4507 .prop_id = conn_set_prop->prop_id,
4508 .obj_id = conn_set_prop->connector_id,
4509 .obj_type = DRM_MODE_OBJECT_CONNECTOR
4510 };
Dave Airlief453ba02008-11-07 14:05:41 -08004511
Paulo Zanoni0057d8d2012-05-15 18:09:03 -03004512 /* It does all the locking and checking we need */
4513 return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv);
Dave Airlief453ba02008-11-07 14:05:41 -08004514}
4515
Paulo Zanonic5431882012-05-15 18:09:02 -03004516static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj,
4517 struct drm_property *property,
4518 uint64_t value)
4519{
4520 int ret = -EINVAL;
4521 struct drm_connector *connector = obj_to_connector(obj);
4522
4523 /* Do DPMS ourselves */
4524 if (property == connector->dev->mode_config.dpms_property) {
4525 if (connector->funcs->dpms)
4526 (*connector->funcs->dpms)(connector, (int)value);
4527 ret = 0;
4528 } else if (connector->funcs->set_property)
4529 ret = connector->funcs->set_property(connector, property, value);
4530
4531 /* store the property value if successful */
4532 if (!ret)
Rob Clark58495562012-10-11 20:50:56 -05004533 drm_object_property_set_value(&connector->base, property, value);
Paulo Zanonic5431882012-05-15 18:09:02 -03004534 return ret;
4535}
4536
Paulo Zanonibffd9de02012-05-15 18:09:05 -03004537static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
4538 struct drm_property *property,
4539 uint64_t value)
4540{
4541 int ret = -EINVAL;
4542 struct drm_crtc *crtc = obj_to_crtc(obj);
4543
4544 if (crtc->funcs->set_property)
4545 ret = crtc->funcs->set_property(crtc, property, value);
4546 if (!ret)
4547 drm_object_property_set_value(obj, property, value);
4548
4549 return ret;
4550}
4551
Thomas Wood3a5f87c2014-08-20 14:45:00 +01004552/**
4553 * drm_mode_plane_set_obj_prop - set the value of a property
4554 * @plane: drm plane object to set property value for
4555 * @property: property to set
4556 * @value: value the property should be set to
4557 *
4558 * This functions sets a given property on a given plane object. This function
4559 * calls the driver's ->set_property callback and changes the software state of
4560 * the property if the callback succeeds.
4561 *
4562 * Returns:
4563 * Zero on success, error code on failure.
4564 */
4565int drm_mode_plane_set_obj_prop(struct drm_plane *plane,
4566 struct drm_property *property,
4567 uint64_t value)
Rob Clark4d939142012-05-17 02:23:27 -06004568{
4569 int ret = -EINVAL;
Thomas Wood3a5f87c2014-08-20 14:45:00 +01004570 struct drm_mode_object *obj = &plane->base;
Rob Clark4d939142012-05-17 02:23:27 -06004571
4572 if (plane->funcs->set_property)
4573 ret = plane->funcs->set_property(plane, property, value);
4574 if (!ret)
4575 drm_object_property_set_value(obj, property, value);
4576
4577 return ret;
4578}
Thomas Wood3a5f87c2014-08-20 14:45:00 +01004579EXPORT_SYMBOL(drm_mode_plane_set_obj_prop);
Rob Clark4d939142012-05-17 02:23:27 -06004580
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004581/**
Daniel Vetter1a498632014-11-19 18:38:09 +01004582 * drm_mode_obj_get_properties_ioctl - get the current value of a object's property
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004583 * @dev: DRM device
4584 * @data: ioctl data
4585 * @file_priv: DRM file info
4586 *
4587 * This function retrieves the current value for an object's property. Compared
4588 * to the connector specific ioctl this one is extended to also work on crtc and
4589 * plane objects.
4590 *
4591 * Called by the user via ioctl.
4592 *
4593 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01004594 * Zero on success, negative errno on failure.
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004595 */
Paulo Zanonic5431882012-05-15 18:09:02 -03004596int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
4597 struct drm_file *file_priv)
4598{
4599 struct drm_mode_obj_get_properties *arg = data;
4600 struct drm_mode_object *obj;
4601 int ret = 0;
Paulo Zanonic5431882012-05-15 18:09:02 -03004602
4603 if (!drm_core_check_feature(dev, DRIVER_MODESET))
4604 return -EINVAL;
4605
Daniel Vetter84849902012-12-02 00:28:11 +01004606 drm_modeset_lock_all(dev);
Paulo Zanonic5431882012-05-15 18:09:02 -03004607
4608 obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
4609 if (!obj) {
Ville Syrjäläf27657f2013-10-17 13:35:00 +03004610 ret = -ENOENT;
Paulo Zanonic5431882012-05-15 18:09:02 -03004611 goto out;
4612 }
4613 if (!obj->properties) {
4614 ret = -EINVAL;
4615 goto out;
4616 }
4617
Rob Clark88a48e22014-12-18 16:01:50 -05004618 ret = get_properties(obj, file_priv->atomic,
Rob Clark95cbf112014-12-18 16:01:49 -05004619 (uint32_t __user *)(unsigned long)(arg->props_ptr),
4620 (uint64_t __user *)(unsigned long)(arg->prop_values_ptr),
4621 &arg->count_props);
Paulo Zanonic5431882012-05-15 18:09:02 -03004622
Paulo Zanonic5431882012-05-15 18:09:02 -03004623out:
Daniel Vetter84849902012-12-02 00:28:11 +01004624 drm_modeset_unlock_all(dev);
Paulo Zanonic5431882012-05-15 18:09:02 -03004625 return ret;
4626}
4627
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004628/**
4629 * drm_mode_obj_set_property_ioctl - set the current value of an object's property
4630 * @dev: DRM device
4631 * @data: ioctl data
4632 * @file_priv: DRM file info
4633 *
4634 * This function sets the current value for an object's property. It also calls
4635 * into a driver's ->set_property callback to update the hardware state.
4636 * Compared to the connector specific ioctl this one is extended to also work on
4637 * crtc and plane objects.
4638 *
4639 * Called by the user via ioctl.
4640 *
4641 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01004642 * Zero on success, negative errno on failure.
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004643 */
Paulo Zanonic5431882012-05-15 18:09:02 -03004644int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
4645 struct drm_file *file_priv)
4646{
4647 struct drm_mode_obj_set_property *arg = data;
4648 struct drm_mode_object *arg_obj;
4649 struct drm_mode_object *prop_obj;
4650 struct drm_property *property;
Rob Clark3843e712014-12-16 18:05:29 -05004651 int i, ret = -EINVAL;
4652 struct drm_mode_object *ref;
Paulo Zanonic5431882012-05-15 18:09:02 -03004653
4654 if (!drm_core_check_feature(dev, DRIVER_MODESET))
4655 return -EINVAL;
4656
Daniel Vetter84849902012-12-02 00:28:11 +01004657 drm_modeset_lock_all(dev);
Paulo Zanonic5431882012-05-15 18:09:02 -03004658
4659 arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
Ville Syrjäläf27657f2013-10-17 13:35:00 +03004660 if (!arg_obj) {
4661 ret = -ENOENT;
Paulo Zanonic5431882012-05-15 18:09:02 -03004662 goto out;
Ville Syrjäläf27657f2013-10-17 13:35:00 +03004663 }
Paulo Zanonic5431882012-05-15 18:09:02 -03004664 if (!arg_obj->properties)
4665 goto out;
4666
Paulo Zanoni7f88a9b2012-05-15 18:09:04 -03004667 for (i = 0; i < arg_obj->properties->count; i++)
Rob Clarkb17cd752014-12-16 18:05:30 -05004668 if (arg_obj->properties->properties[i]->base.id == arg->prop_id)
Paulo Zanonic5431882012-05-15 18:09:02 -03004669 break;
4670
Paulo Zanoni7f88a9b2012-05-15 18:09:04 -03004671 if (i == arg_obj->properties->count)
Paulo Zanonic5431882012-05-15 18:09:02 -03004672 goto out;
4673
4674 prop_obj = drm_mode_object_find(dev, arg->prop_id,
4675 DRM_MODE_OBJECT_PROPERTY);
Ville Syrjäläf27657f2013-10-17 13:35:00 +03004676 if (!prop_obj) {
4677 ret = -ENOENT;
Paulo Zanonic5431882012-05-15 18:09:02 -03004678 goto out;
Ville Syrjäläf27657f2013-10-17 13:35:00 +03004679 }
Paulo Zanonic5431882012-05-15 18:09:02 -03004680 property = obj_to_property(prop_obj);
4681
Rob Clark3843e712014-12-16 18:05:29 -05004682 if (!drm_property_change_valid_get(property, arg->value, &ref))
Paulo Zanonic5431882012-05-15 18:09:02 -03004683 goto out;
4684
4685 switch (arg_obj->type) {
4686 case DRM_MODE_OBJECT_CONNECTOR:
4687 ret = drm_mode_connector_set_obj_prop(arg_obj, property,
4688 arg->value);
4689 break;
Paulo Zanonibffd9de02012-05-15 18:09:05 -03004690 case DRM_MODE_OBJECT_CRTC:
4691 ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value);
4692 break;
Rob Clark4d939142012-05-17 02:23:27 -06004693 case DRM_MODE_OBJECT_PLANE:
Thomas Wood3a5f87c2014-08-20 14:45:00 +01004694 ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj),
4695 property, arg->value);
Rob Clark4d939142012-05-17 02:23:27 -06004696 break;
Paulo Zanonic5431882012-05-15 18:09:02 -03004697 }
4698
Rob Clark3843e712014-12-16 18:05:29 -05004699 drm_property_change_valid_put(property, ref);
4700
Paulo Zanonic5431882012-05-15 18:09:02 -03004701out:
Daniel Vetter84849902012-12-02 00:28:11 +01004702 drm_modeset_unlock_all(dev);
Paulo Zanonic5431882012-05-15 18:09:02 -03004703 return ret;
4704}
4705
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004706/**
4707 * drm_mode_connector_attach_encoder - attach a connector to an encoder
4708 * @connector: connector to attach
4709 * @encoder: encoder to attach @connector to
4710 *
4711 * This function links up a connector to an encoder. Note that the routing
4712 * restrictions between encoders and crtcs are exposed to userspace through the
4713 * possible_clones and possible_crtcs bitmasks.
4714 *
4715 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01004716 * Zero on success, negative errno on failure.
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004717 */
Dave Airlief453ba02008-11-07 14:05:41 -08004718int drm_mode_connector_attach_encoder(struct drm_connector *connector,
4719 struct drm_encoder *encoder)
4720{
4721 int i;
4722
4723 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
4724 if (connector->encoder_ids[i] == 0) {
4725 connector->encoder_ids[i] = encoder->base.id;
4726 return 0;
4727 }
4728 }
4729 return -ENOMEM;
4730}
4731EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
4732
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004733/**
4734 * drm_mode_crtc_set_gamma_size - set the gamma table size
4735 * @crtc: CRTC to set the gamma table size for
4736 * @gamma_size: size of the gamma table
4737 *
4738 * Drivers which support gamma tables should set this to the supported gamma
4739 * table size when initializing the CRTC. Currently the drm core only supports a
4740 * fixed gamma table size.
4741 *
4742 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01004743 * Zero on success, negative errno on failure.
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004744 */
Sascha Hauer4cae5b82012-02-01 11:38:23 +01004745int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004746 int gamma_size)
Dave Airlief453ba02008-11-07 14:05:41 -08004747{
4748 crtc->gamma_size = gamma_size;
4749
Thierry Redingbd3f0ff2014-12-10 13:03:35 +01004750 crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3,
4751 GFP_KERNEL);
Dave Airlief453ba02008-11-07 14:05:41 -08004752 if (!crtc->gamma_store) {
4753 crtc->gamma_size = 0;
Sascha Hauer4cae5b82012-02-01 11:38:23 +01004754 return -ENOMEM;
Dave Airlief453ba02008-11-07 14:05:41 -08004755 }
4756
Sascha Hauer4cae5b82012-02-01 11:38:23 +01004757 return 0;
Dave Airlief453ba02008-11-07 14:05:41 -08004758}
4759EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
4760
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004761/**
4762 * drm_mode_gamma_set_ioctl - set the gamma table
4763 * @dev: DRM device
4764 * @data: ioctl data
4765 * @file_priv: DRM file info
4766 *
4767 * Set the gamma table of a CRTC to the one passed in by the user. Userspace can
4768 * inquire the required gamma table size through drm_mode_gamma_get_ioctl.
4769 *
4770 * Called by the user via ioctl.
4771 *
4772 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01004773 * Zero on success, negative errno on failure.
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004774 */
Dave Airlief453ba02008-11-07 14:05:41 -08004775int drm_mode_gamma_set_ioctl(struct drm_device *dev,
4776 void *data, struct drm_file *file_priv)
4777{
4778 struct drm_mode_crtc_lut *crtc_lut = data;
Dave Airlief453ba02008-11-07 14:05:41 -08004779 struct drm_crtc *crtc;
4780 void *r_base, *g_base, *b_base;
4781 int size;
4782 int ret = 0;
4783
Dave Airliefb3b06c2011-02-08 13:55:21 +10004784 if (!drm_core_check_feature(dev, DRIVER_MODESET))
4785 return -EINVAL;
4786
Daniel Vetter84849902012-12-02 00:28:11 +01004787 drm_modeset_lock_all(dev);
Rob Clarka2b34e22013-10-05 16:36:52 -04004788 crtc = drm_crtc_find(dev, crtc_lut->crtc_id);
4789 if (!crtc) {
Ville Syrjäläf27657f2013-10-17 13:35:00 +03004790 ret = -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08004791 goto out;
4792 }
Dave Airlief453ba02008-11-07 14:05:41 -08004793
Laurent Pinchartebe0f242012-05-17 13:27:24 +02004794 if (crtc->funcs->gamma_set == NULL) {
4795 ret = -ENOSYS;
4796 goto out;
4797 }
4798
Dave Airlief453ba02008-11-07 14:05:41 -08004799 /* memcpy into gamma store */
4800 if (crtc_lut->gamma_size != crtc->gamma_size) {
4801 ret = -EINVAL;
4802 goto out;
4803 }
4804
4805 size = crtc_lut->gamma_size * (sizeof(uint16_t));
4806 r_base = crtc->gamma_store;
4807 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
4808 ret = -EFAULT;
4809 goto out;
4810 }
4811
4812 g_base = r_base + size;
4813 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
4814 ret = -EFAULT;
4815 goto out;
4816 }
4817
4818 b_base = g_base + size;
4819 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
4820 ret = -EFAULT;
4821 goto out;
4822 }
4823
James Simmons72034252010-08-03 01:33:19 +01004824 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
Dave Airlief453ba02008-11-07 14:05:41 -08004825
4826out:
Daniel Vetter84849902012-12-02 00:28:11 +01004827 drm_modeset_unlock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08004828 return ret;
4829
4830}
4831
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004832/**
4833 * drm_mode_gamma_get_ioctl - get the gamma table
4834 * @dev: DRM device
4835 * @data: ioctl data
4836 * @file_priv: DRM file info
4837 *
4838 * Copy the current gamma table into the storage provided. This also provides
4839 * the gamma table size the driver expects, which can be used to size the
4840 * allocated storage.
4841 *
4842 * Called by the user via ioctl.
4843 *
4844 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01004845 * Zero on success, negative errno on failure.
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004846 */
Dave Airlief453ba02008-11-07 14:05:41 -08004847int drm_mode_gamma_get_ioctl(struct drm_device *dev,
4848 void *data, struct drm_file *file_priv)
4849{
4850 struct drm_mode_crtc_lut *crtc_lut = data;
Dave Airlief453ba02008-11-07 14:05:41 -08004851 struct drm_crtc *crtc;
4852 void *r_base, *g_base, *b_base;
4853 int size;
4854 int ret = 0;
4855
Dave Airliefb3b06c2011-02-08 13:55:21 +10004856 if (!drm_core_check_feature(dev, DRIVER_MODESET))
4857 return -EINVAL;
4858
Daniel Vetter84849902012-12-02 00:28:11 +01004859 drm_modeset_lock_all(dev);
Rob Clarka2b34e22013-10-05 16:36:52 -04004860 crtc = drm_crtc_find(dev, crtc_lut->crtc_id);
4861 if (!crtc) {
Ville Syrjäläf27657f2013-10-17 13:35:00 +03004862 ret = -ENOENT;
Dave Airlief453ba02008-11-07 14:05:41 -08004863 goto out;
4864 }
Dave Airlief453ba02008-11-07 14:05:41 -08004865
4866 /* memcpy into gamma store */
4867 if (crtc_lut->gamma_size != crtc->gamma_size) {
4868 ret = -EINVAL;
4869 goto out;
4870 }
4871
4872 size = crtc_lut->gamma_size * (sizeof(uint16_t));
4873 r_base = crtc->gamma_store;
4874 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
4875 ret = -EFAULT;
4876 goto out;
4877 }
4878
4879 g_base = r_base + size;
4880 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
4881 ret = -EFAULT;
4882 goto out;
4883 }
4884
4885 b_base = g_base + size;
4886 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
4887 ret = -EFAULT;
4888 goto out;
4889 }
4890out:
Daniel Vetter84849902012-12-02 00:28:11 +01004891 drm_modeset_unlock_all(dev);
Dave Airlief453ba02008-11-07 14:05:41 -08004892 return ret;
4893}
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05004894
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004895/**
4896 * drm_mode_page_flip_ioctl - schedule an asynchronous fb update
4897 * @dev: DRM device
4898 * @data: ioctl data
4899 * @file_priv: DRM file info
4900 *
4901 * This schedules an asynchronous update on a given CRTC, called page flip.
4902 * Optionally a drm event is generated to signal the completion of the event.
4903 * Generic drivers cannot assume that a pageflip with changed framebuffer
4904 * properties (including driver specific metadata like tiling layout) will work,
4905 * but some drivers support e.g. pixel format changes through the pageflip
4906 * ioctl.
4907 *
4908 * Called by the user via ioctl.
4909 *
4910 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01004911 * Zero on success, negative errno on failure.
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01004912 */
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05004913int drm_mode_page_flip_ioctl(struct drm_device *dev,
4914 void *data, struct drm_file *file_priv)
4915{
4916 struct drm_mode_crtc_page_flip *page_flip = data;
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05004917 struct drm_crtc *crtc;
Daniel Vetter3d30a592014-07-27 13:42:42 +02004918 struct drm_framebuffer *fb = NULL;
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05004919 struct drm_pending_vblank_event *e = NULL;
4920 unsigned long flags;
4921 int ret = -EINVAL;
4922
4923 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
4924 page_flip->reserved != 0)
4925 return -EINVAL;
4926
Keith Packard62f21042013-07-22 18:50:00 -07004927 if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip)
4928 return -EINVAL;
4929
Rob Clarka2b34e22013-10-05 16:36:52 -04004930 crtc = drm_crtc_find(dev, page_flip->crtc_id);
4931 if (!crtc)
Ville Syrjäläf27657f2013-10-17 13:35:00 +03004932 return -ENOENT;
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05004933
Daniel Vetter4d02e2d2014-11-11 10:12:00 +01004934 drm_modeset_lock_crtc(crtc, crtc->primary);
Matt Roperf4510a22014-04-01 15:22:40 -07004935 if (crtc->primary->fb == NULL) {
Chris Wilson90c1efd2010-07-17 20:23:26 +01004936 /* The framebuffer is currently unbound, presumably
4937 * due to a hotplug event, that userspace has not
4938 * yet discovered.
4939 */
4940 ret = -EBUSY;
4941 goto out;
4942 }
4943
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05004944 if (crtc->funcs->page_flip == NULL)
4945 goto out;
4946
Daniel Vetter786b99e2012-12-02 21:53:40 +01004947 fb = drm_framebuffer_lookup(dev, page_flip->fb_id);
Ville Syrjälä37c4e702013-10-17 13:35:01 +03004948 if (!fb) {
4949 ret = -ENOENT;
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05004950 goto out;
Ville Syrjälä37c4e702013-10-17 13:35:01 +03004951 }
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05004952
Damien Lespiauc11e9282013-09-25 16:45:30 +01004953 ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb);
4954 if (ret)
Ville Syrjälä5f61bb42012-03-13 12:35:45 +02004955 goto out;
Ville Syrjälä5f61bb42012-03-13 12:35:45 +02004956
Matt Roperf4510a22014-04-01 15:22:40 -07004957 if (crtc->primary->fb->pixel_format != fb->pixel_format) {
Laurent Pinchart909d9cd2013-04-22 01:38:46 +02004958 DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n");
4959 ret = -EINVAL;
4960 goto out;
4961 }
4962
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05004963 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
4964 ret = -ENOMEM;
4965 spin_lock_irqsave(&dev->event_lock, flags);
Thierry Redingf76511b2014-12-10 13:03:40 +01004966 if (file_priv->event_space < sizeof(e->event)) {
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05004967 spin_unlock_irqrestore(&dev->event_lock, flags);
4968 goto out;
4969 }
Thierry Redingf76511b2014-12-10 13:03:40 +01004970 file_priv->event_space -= sizeof(e->event);
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05004971 spin_unlock_irqrestore(&dev->event_lock, flags);
4972
Thierry Redingf76511b2014-12-10 13:03:40 +01004973 e = kzalloc(sizeof(*e), GFP_KERNEL);
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05004974 if (e == NULL) {
4975 spin_lock_irqsave(&dev->event_lock, flags);
Thierry Redingf76511b2014-12-10 13:03:40 +01004976 file_priv->event_space += sizeof(e->event);
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05004977 spin_unlock_irqrestore(&dev->event_lock, flags);
4978 goto out;
4979 }
4980
Jesse Barnes7bd4d7b2009-11-19 10:50:22 -08004981 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
Thierry Redingf76511b2014-12-10 13:03:40 +01004982 e->event.base.length = sizeof(e->event);
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05004983 e->event.user_data = page_flip->user_data;
4984 e->base.event = &e->event.base;
4985 e->base.file_priv = file_priv;
4986 e->base.destroy =
4987 (void (*) (struct drm_pending_event *)) kfree;
4988 }
4989
Daniel Vetter3d30a592014-07-27 13:42:42 +02004990 crtc->primary->old_fb = crtc->primary->fb;
Keith Packarded8d1972013-07-22 18:49:58 -07004991 ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags);
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05004992 if (ret) {
Joonyoung Shimaef6a7e2012-04-18 13:47:02 +09004993 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
4994 spin_lock_irqsave(&dev->event_lock, flags);
Thierry Redingf76511b2014-12-10 13:03:40 +01004995 file_priv->event_space += sizeof(e->event);
Joonyoung Shimaef6a7e2012-04-18 13:47:02 +09004996 spin_unlock_irqrestore(&dev->event_lock, flags);
4997 kfree(e);
4998 }
Daniel Vetterb0d12322012-12-11 01:07:12 +01004999 /* Keep the old fb, don't unref it. */
Daniel Vetter3d30a592014-07-27 13:42:42 +02005000 crtc->primary->old_fb = NULL;
Daniel Vetterb0d12322012-12-11 01:07:12 +01005001 } else {
Thierry Reding8cf1e982013-02-13 16:08:33 +01005002 /*
5003 * Warn if the driver hasn't properly updated the crtc->fb
5004 * field to reflect that the new framebuffer is now used.
5005 * Failing to do so will screw with the reference counting
5006 * on framebuffers.
5007 */
Matt Roperf4510a22014-04-01 15:22:40 -07005008 WARN_ON(crtc->primary->fb != fb);
Daniel Vetterb0d12322012-12-11 01:07:12 +01005009 /* Unref only the old framebuffer. */
5010 fb = NULL;
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05005011 }
5012
5013out:
Daniel Vetterb0d12322012-12-11 01:07:12 +01005014 if (fb)
5015 drm_framebuffer_unreference(fb);
Daniel Vetter3d30a592014-07-27 13:42:42 +02005016 if (crtc->primary->old_fb)
5017 drm_framebuffer_unreference(crtc->primary->old_fb);
5018 crtc->primary->old_fb = NULL;
Daniel Vetterd059f652014-07-25 18:07:40 +02005019 drm_modeset_unlock_crtc(crtc);
Daniel Vetterb4d5e7d2012-12-11 16:59:31 +01005020
Kristian Høgsbergd91d8a32009-11-17 12:43:55 -05005021 return ret;
5022}
Chris Wilsoneb033552011-01-24 15:11:08 +00005023
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01005024/**
5025 * drm_mode_config_reset - call ->reset callbacks
5026 * @dev: drm device
5027 *
5028 * This functions calls all the crtc's, encoder's and connector's ->reset
5029 * callback. Drivers can use this in e.g. their driver load or resume code to
5030 * reset hardware and software state.
5031 */
Chris Wilsoneb033552011-01-24 15:11:08 +00005032void drm_mode_config_reset(struct drm_device *dev)
5033{
5034 struct drm_crtc *crtc;
Daniel Vetter2a0d7cf2014-07-29 15:32:37 +02005035 struct drm_plane *plane;
Chris Wilsoneb033552011-01-24 15:11:08 +00005036 struct drm_encoder *encoder;
5037 struct drm_connector *connector;
5038
Daniel Vetter2a0d7cf2014-07-29 15:32:37 +02005039 list_for_each_entry(plane, &dev->mode_config.plane_list, head)
5040 if (plane->funcs->reset)
5041 plane->funcs->reset(plane);
5042
Chris Wilsoneb033552011-01-24 15:11:08 +00005043 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
5044 if (crtc->funcs->reset)
5045 crtc->funcs->reset(crtc);
5046
5047 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
5048 if (encoder->funcs->reset)
5049 encoder->funcs->reset(encoder);
5050
Daniel Vetter5e2cb2f2012-10-23 18:23:35 +00005051 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
5052 connector->status = connector_status_unknown;
5053
Chris Wilsoneb033552011-01-24 15:11:08 +00005054 if (connector->funcs->reset)
5055 connector->funcs->reset(connector);
Daniel Vetter5e2cb2f2012-10-23 18:23:35 +00005056 }
Chris Wilsoneb033552011-01-24 15:11:08 +00005057}
5058EXPORT_SYMBOL(drm_mode_config_reset);
Dave Airlieff72145b2011-02-07 12:16:14 +10005059
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01005060/**
5061 * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer
5062 * @dev: DRM device
5063 * @data: ioctl data
5064 * @file_priv: DRM file info
5065 *
5066 * This creates a new dumb buffer in the driver's backing storage manager (GEM,
5067 * TTM or something else entirely) and returns the resulting buffer handle. This
5068 * handle can then be wrapped up into a framebuffer modeset object.
5069 *
5070 * Note that userspace is not allowed to use such objects for render
5071 * acceleration - drivers must create their own private ioctls for such a use
5072 * case.
5073 *
5074 * Called by the user via ioctl.
5075 *
5076 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01005077 * Zero on success, negative errno on failure.
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01005078 */
Dave Airlieff72145b2011-02-07 12:16:14 +10005079int drm_mode_create_dumb_ioctl(struct drm_device *dev,
5080 void *data, struct drm_file *file_priv)
5081{
5082 struct drm_mode_create_dumb *args = data;
David Herrmannb28cd412014-01-20 20:09:55 +01005083 u32 cpp, stride, size;
Dave Airlieff72145b2011-02-07 12:16:14 +10005084
5085 if (!dev->driver->dumb_create)
5086 return -ENOSYS;
David Herrmannb28cd412014-01-20 20:09:55 +01005087 if (!args->width || !args->height || !args->bpp)
5088 return -EINVAL;
5089
5090 /* overflow checks for 32bit size calculations */
David Herrmann00e72082014-08-24 19:23:26 +02005091 /* NOTE: DIV_ROUND_UP() can overflow */
David Herrmannb28cd412014-01-20 20:09:55 +01005092 cpp = DIV_ROUND_UP(args->bpp, 8);
David Herrmann00e72082014-08-24 19:23:26 +02005093 if (!cpp || cpp > 0xffffffffU / args->width)
David Herrmannb28cd412014-01-20 20:09:55 +01005094 return -EINVAL;
5095 stride = cpp * args->width;
5096 if (args->height > 0xffffffffU / stride)
5097 return -EINVAL;
5098
5099 /* test for wrap-around */
5100 size = args->height * stride;
5101 if (PAGE_ALIGN(size) == 0)
5102 return -EINVAL;
5103
Thierry Redingf6085952014-11-03 11:14:14 +01005104 /*
5105 * handle, pitch and size are output parameters. Zero them out to
5106 * prevent drivers from accidentally using uninitialized data. Since
5107 * not all existing userspace is clearing these fields properly we
5108 * cannot reject IOCTL with garbage in them.
5109 */
5110 args->handle = 0;
5111 args->pitch = 0;
5112 args->size = 0;
5113
Dave Airlieff72145b2011-02-07 12:16:14 +10005114 return dev->driver->dumb_create(file_priv, dev, args);
5115}
5116
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01005117/**
5118 * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer
5119 * @dev: DRM device
5120 * @data: ioctl data
5121 * @file_priv: DRM file info
5122 *
5123 * Allocate an offset in the drm device node's address space to be able to
5124 * memory map a dumb buffer.
5125 *
5126 * Called by the user via ioctl.
5127 *
5128 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01005129 * Zero on success, negative errno on failure.
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01005130 */
Dave Airlieff72145b2011-02-07 12:16:14 +10005131int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
5132 void *data, struct drm_file *file_priv)
5133{
5134 struct drm_mode_map_dumb *args = data;
5135
5136 /* call driver ioctl to get mmap offset */
5137 if (!dev->driver->dumb_map_offset)
5138 return -ENOSYS;
5139
5140 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
5141}
5142
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01005143/**
5144 * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer
5145 * @dev: DRM device
5146 * @data: ioctl data
5147 * @file_priv: DRM file info
5148 *
5149 * This destroys the userspace handle for the given dumb backing storage buffer.
5150 * Since buffer objects must be reference counted in the kernel a buffer object
5151 * won't be immediately freed if a framebuffer modeset object still uses it.
5152 *
5153 * Called by the user via ioctl.
5154 *
5155 * Returns:
Daniel Vetter1a498632014-11-19 18:38:09 +01005156 * Zero on success, negative errno on failure.
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01005157 */
Dave Airlieff72145b2011-02-07 12:16:14 +10005158int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
5159 void *data, struct drm_file *file_priv)
5160{
5161 struct drm_mode_destroy_dumb *args = data;
5162
5163 if (!dev->driver->dumb_destroy)
5164 return -ENOSYS;
5165
5166 return dev->driver->dumb_destroy(file_priv, dev, args->handle);
5167}
Dave Airlie248dbc22011-11-29 20:02:54 +00005168
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01005169/**
5170 * drm_fb_get_bpp_depth - get the bpp/depth values for format
5171 * @format: pixel format (DRM_FORMAT_*)
5172 * @depth: storage for the depth value
5173 * @bpp: storage for the bpp value
5174 *
5175 * This only supports RGB formats here for compat with code that doesn't use
5176 * pixel formats directly yet.
Dave Airlie248dbc22011-11-29 20:02:54 +00005177 */
5178void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
5179 int *bpp)
5180{
5181 switch (format) {
Ville Syrjäläc51a6bc2013-01-31 19:43:37 +02005182 case DRM_FORMAT_C8:
Ville Syrjälä04b39242011-11-17 18:05:13 +02005183 case DRM_FORMAT_RGB332:
5184 case DRM_FORMAT_BGR233:
Dave Airlie248dbc22011-11-29 20:02:54 +00005185 *depth = 8;
5186 *bpp = 8;
5187 break;
Ville Syrjälä04b39242011-11-17 18:05:13 +02005188 case DRM_FORMAT_XRGB1555:
5189 case DRM_FORMAT_XBGR1555:
5190 case DRM_FORMAT_RGBX5551:
5191 case DRM_FORMAT_BGRX5551:
5192 case DRM_FORMAT_ARGB1555:
5193 case DRM_FORMAT_ABGR1555:
5194 case DRM_FORMAT_RGBA5551:
5195 case DRM_FORMAT_BGRA5551:
Dave Airlie248dbc22011-11-29 20:02:54 +00005196 *depth = 15;
5197 *bpp = 16;
5198 break;
Ville Syrjälä04b39242011-11-17 18:05:13 +02005199 case DRM_FORMAT_RGB565:
5200 case DRM_FORMAT_BGR565:
Dave Airlie248dbc22011-11-29 20:02:54 +00005201 *depth = 16;
5202 *bpp = 16;
5203 break;
Ville Syrjälä04b39242011-11-17 18:05:13 +02005204 case DRM_FORMAT_RGB888:
5205 case DRM_FORMAT_BGR888:
5206 *depth = 24;
5207 *bpp = 24;
5208 break;
5209 case DRM_FORMAT_XRGB8888:
5210 case DRM_FORMAT_XBGR8888:
5211 case DRM_FORMAT_RGBX8888:
5212 case DRM_FORMAT_BGRX8888:
Dave Airlie248dbc22011-11-29 20:02:54 +00005213 *depth = 24;
5214 *bpp = 32;
5215 break;
Ville Syrjälä04b39242011-11-17 18:05:13 +02005216 case DRM_FORMAT_XRGB2101010:
5217 case DRM_FORMAT_XBGR2101010:
5218 case DRM_FORMAT_RGBX1010102:
5219 case DRM_FORMAT_BGRX1010102:
5220 case DRM_FORMAT_ARGB2101010:
5221 case DRM_FORMAT_ABGR2101010:
5222 case DRM_FORMAT_RGBA1010102:
5223 case DRM_FORMAT_BGRA1010102:
Dave Airlie248dbc22011-11-29 20:02:54 +00005224 *depth = 30;
5225 *bpp = 32;
5226 break;
Ville Syrjälä04b39242011-11-17 18:05:13 +02005227 case DRM_FORMAT_ARGB8888:
5228 case DRM_FORMAT_ABGR8888:
5229 case DRM_FORMAT_RGBA8888:
5230 case DRM_FORMAT_BGRA8888:
Dave Airlie248dbc22011-11-29 20:02:54 +00005231 *depth = 32;
5232 *bpp = 32;
5233 break;
5234 default:
Ville Syrjälä23c453a2013-10-15 21:06:51 +03005235 DRM_DEBUG_KMS("unsupported pixel format %s\n",
5236 drm_get_format_name(format));
Dave Airlie248dbc22011-11-29 20:02:54 +00005237 *depth = 0;
5238 *bpp = 0;
5239 break;
5240 }
5241}
5242EXPORT_SYMBOL(drm_fb_get_bpp_depth);
Ville Syrjälä141670e2012-04-05 21:35:15 +03005243
5244/**
5245 * drm_format_num_planes - get the number of planes for format
5246 * @format: pixel format (DRM_FORMAT_*)
5247 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01005248 * Returns:
Ville Syrjälä141670e2012-04-05 21:35:15 +03005249 * The number of planes used by the specified pixel format.
5250 */
5251int drm_format_num_planes(uint32_t format)
5252{
5253 switch (format) {
5254 case DRM_FORMAT_YUV410:
5255 case DRM_FORMAT_YVU410:
5256 case DRM_FORMAT_YUV411:
5257 case DRM_FORMAT_YVU411:
5258 case DRM_FORMAT_YUV420:
5259 case DRM_FORMAT_YVU420:
5260 case DRM_FORMAT_YUV422:
5261 case DRM_FORMAT_YVU422:
5262 case DRM_FORMAT_YUV444:
5263 case DRM_FORMAT_YVU444:
5264 return 3;
5265 case DRM_FORMAT_NV12:
5266 case DRM_FORMAT_NV21:
5267 case DRM_FORMAT_NV16:
5268 case DRM_FORMAT_NV61:
Laurent Pinchartba623f62012-05-18 23:47:40 +02005269 case DRM_FORMAT_NV24:
5270 case DRM_FORMAT_NV42:
Ville Syrjälä141670e2012-04-05 21:35:15 +03005271 return 2;
5272 default:
5273 return 1;
5274 }
5275}
5276EXPORT_SYMBOL(drm_format_num_planes);
Ville Syrjälä5a86bd52012-04-05 21:35:16 +03005277
5278/**
5279 * drm_format_plane_cpp - determine the bytes per pixel value
5280 * @format: pixel format (DRM_FORMAT_*)
5281 * @plane: plane index
5282 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01005283 * Returns:
Ville Syrjälä5a86bd52012-04-05 21:35:16 +03005284 * The bytes per pixel value for the specified plane.
5285 */
5286int drm_format_plane_cpp(uint32_t format, int plane)
5287{
5288 unsigned int depth;
5289 int bpp;
5290
5291 if (plane >= drm_format_num_planes(format))
5292 return 0;
5293
5294 switch (format) {
5295 case DRM_FORMAT_YUYV:
5296 case DRM_FORMAT_YVYU:
5297 case DRM_FORMAT_UYVY:
5298 case DRM_FORMAT_VYUY:
5299 return 2;
5300 case DRM_FORMAT_NV12:
5301 case DRM_FORMAT_NV21:
5302 case DRM_FORMAT_NV16:
5303 case DRM_FORMAT_NV61:
Laurent Pinchartba623f62012-05-18 23:47:40 +02005304 case DRM_FORMAT_NV24:
5305 case DRM_FORMAT_NV42:
Ville Syrjälä5a86bd52012-04-05 21:35:16 +03005306 return plane ? 2 : 1;
5307 case DRM_FORMAT_YUV410:
5308 case DRM_FORMAT_YVU410:
5309 case DRM_FORMAT_YUV411:
5310 case DRM_FORMAT_YVU411:
5311 case DRM_FORMAT_YUV420:
5312 case DRM_FORMAT_YVU420:
5313 case DRM_FORMAT_YUV422:
5314 case DRM_FORMAT_YVU422:
5315 case DRM_FORMAT_YUV444:
5316 case DRM_FORMAT_YVU444:
5317 return 1;
5318 default:
5319 drm_fb_get_bpp_depth(format, &depth, &bpp);
5320 return bpp >> 3;
5321 }
5322}
5323EXPORT_SYMBOL(drm_format_plane_cpp);
Ville Syrjälä01b68b02012-04-05 21:35:17 +03005324
5325/**
5326 * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor
5327 * @format: pixel format (DRM_FORMAT_*)
5328 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01005329 * Returns:
Ville Syrjälä01b68b02012-04-05 21:35:17 +03005330 * The horizontal chroma subsampling factor for the
5331 * specified pixel format.
5332 */
5333int drm_format_horz_chroma_subsampling(uint32_t format)
5334{
5335 switch (format) {
5336 case DRM_FORMAT_YUV411:
5337 case DRM_FORMAT_YVU411:
5338 case DRM_FORMAT_YUV410:
5339 case DRM_FORMAT_YVU410:
5340 return 4;
5341 case DRM_FORMAT_YUYV:
5342 case DRM_FORMAT_YVYU:
5343 case DRM_FORMAT_UYVY:
5344 case DRM_FORMAT_VYUY:
5345 case DRM_FORMAT_NV12:
5346 case DRM_FORMAT_NV21:
5347 case DRM_FORMAT_NV16:
5348 case DRM_FORMAT_NV61:
5349 case DRM_FORMAT_YUV422:
5350 case DRM_FORMAT_YVU422:
5351 case DRM_FORMAT_YUV420:
5352 case DRM_FORMAT_YVU420:
5353 return 2;
5354 default:
5355 return 1;
5356 }
5357}
5358EXPORT_SYMBOL(drm_format_horz_chroma_subsampling);
5359
5360/**
5361 * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor
5362 * @format: pixel format (DRM_FORMAT_*)
5363 *
Daniel Vetterc8e32cc2014-03-10 21:33:02 +01005364 * Returns:
Ville Syrjälä01b68b02012-04-05 21:35:17 +03005365 * The vertical chroma subsampling factor for the
5366 * specified pixel format.
5367 */
5368int drm_format_vert_chroma_subsampling(uint32_t format)
5369{
5370 switch (format) {
5371 case DRM_FORMAT_YUV410:
5372 case DRM_FORMAT_YVU410:
5373 return 4;
5374 case DRM_FORMAT_YUV420:
5375 case DRM_FORMAT_YVU420:
5376 case DRM_FORMAT_NV12:
5377 case DRM_FORMAT_NV21:
5378 return 2;
5379 default:
5380 return 1;
5381 }
5382}
5383EXPORT_SYMBOL(drm_format_vert_chroma_subsampling);
Laurent Pinchart87d24fc2013-04-15 15:37:16 +02005384
5385/**
Ville Syrjälä3c9855f2014-07-08 10:31:56 +05305386 * drm_rotation_simplify() - Try to simplify the rotation
5387 * @rotation: Rotation to be simplified
5388 * @supported_rotations: Supported rotations
5389 *
5390 * Attempt to simplify the rotation to a form that is supported.
5391 * Eg. if the hardware supports everything except DRM_REFLECT_X
5392 * one could call this function like this:
5393 *
5394 * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) |
5395 * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) |
5396 * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y));
5397 *
5398 * to eliminate the DRM_ROTATE_X flag. Depending on what kind of
5399 * transforms the hardware supports, this function may not
5400 * be able to produce a supported transform, so the caller should
5401 * check the result afterwards.
5402 */
5403unsigned int drm_rotation_simplify(unsigned int rotation,
5404 unsigned int supported_rotations)
5405{
5406 if (rotation & ~supported_rotations) {
5407 rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y);
5408 rotation = (rotation & ~0xf) | BIT((ffs(rotation & 0xf) + 1) % 4);
5409 }
5410
5411 return rotation;
5412}
5413EXPORT_SYMBOL(drm_rotation_simplify);
5414
5415/**
Laurent Pinchart87d24fc2013-04-15 15:37:16 +02005416 * drm_mode_config_init - initialize DRM mode_configuration structure
5417 * @dev: DRM device
5418 *
5419 * Initialize @dev's mode_config structure, used for tracking the graphics
5420 * configuration of @dev.
5421 *
5422 * Since this initializes the modeset locks, no locking is possible. Which is no
5423 * problem, since this should happen single threaded at init time. It is the
5424 * driver's problem to ensure this guarantee.
5425 *
5426 */
5427void drm_mode_config_init(struct drm_device *dev)
5428{
5429 mutex_init(&dev->mode_config.mutex);
Rob Clark51fd3712013-11-19 12:10:12 -05005430 drm_modeset_lock_init(&dev->mode_config.connection_mutex);
Laurent Pinchart87d24fc2013-04-15 15:37:16 +02005431 mutex_init(&dev->mode_config.idr_mutex);
5432 mutex_init(&dev->mode_config.fb_lock);
5433 INIT_LIST_HEAD(&dev->mode_config.fb_list);
5434 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
5435 INIT_LIST_HEAD(&dev->mode_config.connector_list);
5436 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
5437 INIT_LIST_HEAD(&dev->mode_config.property_list);
5438 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
5439 INIT_LIST_HEAD(&dev->mode_config.plane_list);
5440 idr_init(&dev->mode_config.crtc_idr);
Dave Airlie138f9eb2014-10-20 16:17:17 +10005441 idr_init(&dev->mode_config.tile_idr);
Laurent Pinchart87d24fc2013-04-15 15:37:16 +02005442
5443 drm_modeset_lock_all(dev);
Rob Clark6b4959f2014-12-18 16:01:53 -05005444 drm_mode_create_standard_properties(dev);
Laurent Pinchart87d24fc2013-04-15 15:37:16 +02005445 drm_modeset_unlock_all(dev);
5446
5447 /* Just to be sure */
5448 dev->mode_config.num_fb = 0;
5449 dev->mode_config.num_connector = 0;
5450 dev->mode_config.num_crtc = 0;
5451 dev->mode_config.num_encoder = 0;
Matt Ropere27dde32014-04-01 15:22:30 -07005452 dev->mode_config.num_overlay_plane = 0;
5453 dev->mode_config.num_total_plane = 0;
Laurent Pinchart87d24fc2013-04-15 15:37:16 +02005454}
5455EXPORT_SYMBOL(drm_mode_config_init);
5456
5457/**
5458 * drm_mode_config_cleanup - free up DRM mode_config info
5459 * @dev: DRM device
5460 *
5461 * Free up all the connectors and CRTCs associated with this DRM device, then
5462 * free up the framebuffers and associated buffer objects.
5463 *
5464 * Note that since this /should/ happen single-threaded at driver/device
5465 * teardown time, no locking is required. It's the driver's job to ensure that
5466 * this guarantee actually holds true.
5467 *
5468 * FIXME: cleanup any dangling user buffer objects too
5469 */
5470void drm_mode_config_cleanup(struct drm_device *dev)
5471{
5472 struct drm_connector *connector, *ot;
5473 struct drm_crtc *crtc, *ct;
5474 struct drm_encoder *encoder, *enct;
5475 struct drm_framebuffer *fb, *fbt;
5476 struct drm_property *property, *pt;
5477 struct drm_property_blob *blob, *bt;
5478 struct drm_plane *plane, *plt;
5479
5480 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
5481 head) {
5482 encoder->funcs->destroy(encoder);
5483 }
5484
5485 list_for_each_entry_safe(connector, ot,
5486 &dev->mode_config.connector_list, head) {
5487 connector->funcs->destroy(connector);
5488 }
5489
5490 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
5491 head) {
5492 drm_property_destroy(dev, property);
5493 }
5494
5495 list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list,
5496 head) {
5497 drm_property_destroy_blob(dev, blob);
5498 }
5499
5500 /*
5501 * Single-threaded teardown context, so it's not required to grab the
5502 * fb_lock to protect against concurrent fb_list access. Contrary, it
5503 * would actually deadlock with the drm_framebuffer_cleanup function.
5504 *
5505 * Also, if there are any framebuffers left, that's a driver leak now,
5506 * so politely WARN about this.
5507 */
5508 WARN_ON(!list_empty(&dev->mode_config.fb_list));
5509 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
5510 drm_framebuffer_remove(fb);
5511 }
5512
5513 list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
5514 head) {
5515 plane->funcs->destroy(plane);
5516 }
5517
5518 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
5519 crtc->funcs->destroy(crtc);
5520 }
5521
Dave Airlie138f9eb2014-10-20 16:17:17 +10005522 idr_destroy(&dev->mode_config.tile_idr);
Laurent Pinchart87d24fc2013-04-15 15:37:16 +02005523 idr_destroy(&dev->mode_config.crtc_idr);
Rob Clark51fd3712013-11-19 12:10:12 -05005524 drm_modeset_lock_fini(&dev->mode_config.connection_mutex);
Laurent Pinchart87d24fc2013-04-15 15:37:16 +02005525}
5526EXPORT_SYMBOL(drm_mode_config_cleanup);
Ville Syrjäläc1df5f32014-07-08 10:31:53 +05305527
5528struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev,
5529 unsigned int supported_rotations)
5530{
5531 static const struct drm_prop_enum_list props[] = {
5532 { DRM_ROTATE_0, "rotate-0" },
5533 { DRM_ROTATE_90, "rotate-90" },
5534 { DRM_ROTATE_180, "rotate-180" },
5535 { DRM_ROTATE_270, "rotate-270" },
5536 { DRM_REFLECT_X, "reflect-x" },
5537 { DRM_REFLECT_Y, "reflect-y" },
5538 };
5539
5540 return drm_property_create_bitmask(dev, 0, "rotation",
5541 props, ARRAY_SIZE(props),
5542 supported_rotations);
5543}
5544EXPORT_SYMBOL(drm_mode_create_rotation_property);
Dave Airlie138f9eb2014-10-20 16:17:17 +10005545
5546/**
5547 * DOC: Tile group
5548 *
5549 * Tile groups are used to represent tiled monitors with a unique
5550 * integer identifier. Tiled monitors using DisplayID v1.3 have
5551 * a unique 8-byte handle, we store this in a tile group, so we
5552 * have a common identifier for all tiles in a monitor group.
5553 */
5554static void drm_tile_group_free(struct kref *kref)
5555{
5556 struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount);
5557 struct drm_device *dev = tg->dev;
5558 mutex_lock(&dev->mode_config.idr_mutex);
5559 idr_remove(&dev->mode_config.tile_idr, tg->id);
5560 mutex_unlock(&dev->mode_config.idr_mutex);
5561 kfree(tg);
5562}
5563
5564/**
5565 * drm_mode_put_tile_group - drop a reference to a tile group.
5566 * @dev: DRM device
5567 * @tg: tile group to drop reference to.
5568 *
5569 * drop reference to tile group and free if 0.
5570 */
5571void drm_mode_put_tile_group(struct drm_device *dev,
5572 struct drm_tile_group *tg)
5573{
5574 kref_put(&tg->refcount, drm_tile_group_free);
5575}
5576
5577/**
5578 * drm_mode_get_tile_group - get a reference to an existing tile group
5579 * @dev: DRM device
5580 * @topology: 8-bytes unique per monitor.
5581 *
5582 * Use the unique bytes to get a reference to an existing tile group.
5583 *
5584 * RETURNS:
5585 * tile group or NULL if not found.
5586 */
5587struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev,
5588 char topology[8])
5589{
5590 struct drm_tile_group *tg;
5591 int id;
5592 mutex_lock(&dev->mode_config.idr_mutex);
5593 idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) {
5594 if (!memcmp(tg->group_data, topology, 8)) {
5595 if (!kref_get_unless_zero(&tg->refcount))
5596 tg = NULL;
5597 mutex_unlock(&dev->mode_config.idr_mutex);
5598 return tg;
5599 }
5600 }
5601 mutex_unlock(&dev->mode_config.idr_mutex);
5602 return NULL;
5603}
Rob Clark81ddd1b2015-03-27 13:01:52 -04005604EXPORT_SYMBOL(drm_mode_get_tile_group);
Dave Airlie138f9eb2014-10-20 16:17:17 +10005605
5606/**
5607 * drm_mode_create_tile_group - create a tile group from a displayid description
5608 * @dev: DRM device
5609 * @topology: 8-bytes unique per monitor.
5610 *
5611 * Create a tile group for the unique monitor, and get a unique
5612 * identifier for the tile group.
5613 *
5614 * RETURNS:
5615 * new tile group or error.
5616 */
5617struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev,
5618 char topology[8])
5619{
5620 struct drm_tile_group *tg;
5621 int ret;
5622
5623 tg = kzalloc(sizeof(*tg), GFP_KERNEL);
5624 if (!tg)
5625 return ERR_PTR(-ENOMEM);
5626
5627 kref_init(&tg->refcount);
5628 memcpy(tg->group_data, topology, 8);
5629 tg->dev = dev;
5630
5631 mutex_lock(&dev->mode_config.idr_mutex);
5632 ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL);
5633 if (ret >= 0) {
5634 tg->id = ret;
5635 } else {
5636 kfree(tg);
5637 tg = ERR_PTR(ret);
5638 }
5639
5640 mutex_unlock(&dev->mode_config.idr_mutex);
5641 return tg;
5642}
Rob Clark81ddd1b2015-03-27 13:01:52 -04005643EXPORT_SYMBOL(drm_mode_create_tile_group);