WebSVN – Kolibri OS – Blame – /drivers/video/drm/drm_crtc.c

Rev	Author	Line No.	Line
1123	serge	1	/*
		2	* Copyright (c) 2006-2008 Intel Corporation
		3	* Copyright (c) 2007 Dave Airlie
		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
		29	* Dave Airlie
		30	* Jesse Barnes
		31	*/
1179	serge	32	#include
1123	serge	33	#include "drm.h"
		34	#include "drmP.h"
		35	#include "drm_crtc.h"
		36
		37	struct drm_prop_enum_list {
		38	int type;
		39	char *name;
		40	};
		41
		42	/* Avoid boilerplate. I'm tired of typing. */
		43	#define DRM_ENUM_NAME_FN(fnname, list) \
		44	char *fnname(int val) \
		45	{ \
		46	int i; \
		47	for (i = 0; i < ARRAY_SIZE(list); i++) { \
		48	if (list[i].type == val) \
		49	return list[i].name; \
		50	} \
		51	return "(unknown)"; \
		52	}
		53
		54	/*
		55	* Global properties
		56	*/
		57	static struct drm_prop_enum_list drm_dpms_enum_list[] =
		58	{ { DRM_MODE_DPMS_ON, "On" },
		59	{ DRM_MODE_DPMS_STANDBY, "Standby" },
		60	{ DRM_MODE_DPMS_SUSPEND, "Suspend" },
		61	{ DRM_MODE_DPMS_OFF, "Off" }
		62	};
		63
		64	DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
		65
		66	/*
		67	* Optional properties
		68	*/
		69	static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
		70	{
1179	serge	71	{ DRM_MODE_SCALE_NONE, "None" },
		72	{ DRM_MODE_SCALE_FULLSCREEN, "Full" },
		73	{ DRM_MODE_SCALE_CENTER, "Center" },
		74	{ DRM_MODE_SCALE_ASPECT, "Full aspect" },
1123	serge	75	};
		76
		77	static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
		78	{
		79	{ DRM_MODE_DITHERING_OFF, "Off" },
		80	{ DRM_MODE_DITHERING_ON, "On" },
		81	};
		82
		83	/*
		84	* Non-global properties, but "required" for certain connectors.
		85	*/
		86	static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
		87	{
		88	{ DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
		89	{ DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
		90	{ DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
		91	};
		92
		93	DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
		94
		95	static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
		96	{
		97	{ DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
		98	{ DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
		99	{ DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
		100	};
		101
		102	DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
		103	drm_dvi_i_subconnector_enum_list)
		104
		105	static struct drm_prop_enum_list drm_tv_select_enum_list[] =
		106	{
		107	{ DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
		108	{ DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
		109	{ DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
		110	{ DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
1179	serge	111	{ DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
1123	serge	112	};
		113
		114	DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
		115
		116	static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
		117	{
		118	{ DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* 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 */
1179	serge	122	{ DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
1123	serge	123	};
		124
		125	DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
		126	drm_tv_subconnector_enum_list)
		127
		128	struct drm_conn_prop_enum_list {
		129	int type;
		130	char *name;
		131	int count;
		132	};
		133
		134	/*
		135	* Connector and encoder types.
		136	*/
		137	static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
		138	{ { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
		139	{ DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
		140	{ DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
		141	{ DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
		142	{ DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
		143	{ DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
		144	{ DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
		145	{ DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
		146	{ DRM_MODE_CONNECTOR_Component, "Component", 0 },
		147	{ DRM_MODE_CONNECTOR_9PinDIN, "9-pin DIN", 0 },
		148	{ DRM_MODE_CONNECTOR_DisplayPort, "DisplayPort", 0 },
		149	{ DRM_MODE_CONNECTOR_HDMIA, "HDMI Type A", 0 },
		150	{ DRM_MODE_CONNECTOR_HDMIB, "HDMI Type B", 0 },
1179	serge	151	{ DRM_MODE_CONNECTOR_TV, "TV", 0 },
1123	serge	152	};
		153
		154	static struct drm_prop_enum_list drm_encoder_enum_list[] =
		155	{ { DRM_MODE_ENCODER_NONE, "None" },
		156	{ DRM_MODE_ENCODER_DAC, "DAC" },
		157	{ DRM_MODE_ENCODER_TMDS, "TMDS" },
		158	{ DRM_MODE_ENCODER_LVDS, "LVDS" },
		159	{ DRM_MODE_ENCODER_TVDAC, "TV" },
		160	};
		161
		162	char drm_get_encoder_name(struct drm_encoder encoder)
		163	{
		164	static char buf[32];
		165
		166	snprintf(buf, 32, "%s-%d",
		167	drm_encoder_enum_list[encoder->encoder_type].name,
		168	encoder->base.id);
		169	return buf;
		170	}
1179	serge	171	EXPORT_SYMBOL(drm_get_encoder_name);
1123	serge	172
		173	char drm_get_connector_name(struct drm_connector connector)
		174	{
		175	static char buf[32];
		176
		177	snprintf(buf, 32, "%s-%d",
		178	drm_connector_enum_list[connector->connector_type].name,
		179	connector->connector_type_id);
		180	return buf;
		181	}
		182	EXPORT_SYMBOL(drm_get_connector_name);
		183
		184	char *drm_get_connector_status_name(enum drm_connector_status status)
		185	{
		186	if (status == connector_status_connected)
		187	return "connected";
		188	else if (status == connector_status_disconnected)
		189	return "disconnected";
		190	else
		191	return "unknown";
		192	}
		193
		194	/**
		195	* drm_mode_object_get - allocate a new identifier
		196	* @dev: DRM device
		197	* @ptr: object pointer, used to generate unique ID
		198	* @type: object type
		199	*
		200	* LOCKING:
		201	*
		202	* Create a unique identifier based on @ptr in @dev's identifier space. Used
		203	* for tracking modes, CRTCs and connectors.
		204	*
		205	* RETURNS:
		206	* New unique (relative to other objects in @dev) integer identifier for the
		207	* object.
		208	*/
		209	static int drm_mode_object_get(struct drm_device *dev,
		210	struct drm_mode_object *obj, uint32_t obj_type)
		211	{
		212	int new_id = 0;
		213	int ret;
		214
		215	again:
		216	if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
		217	DRM_ERROR("Ran out memory getting a mode number\n");
		218	return -EINVAL;
		219	}
		220
1179	serge	221	mutex_lock(&dev->mode_config.idr_mutex);
1123	serge	222	ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
1179	serge	223	mutex_unlock(&dev->mode_config.idr_mutex);
1123	serge	224	if (ret == -EAGAIN)
1179	serge	225	goto again;
1123	serge	226
		227	obj->id = new_id;
		228	obj->type = obj_type;
1179	serge	229	return 0;
1123	serge	230	}
		231
		232	/**
		233	* drm_mode_object_put - free an identifer
		234	* @dev: DRM device
		235	* @id: ID to free
		236	*
		237	* LOCKING:
		238	* Caller must hold DRM mode_config lock.
		239	*
		240	* Free @id from @dev's unique identifier pool.
		241	*/
		242	static void drm_mode_object_put(struct drm_device *dev,
		243	struct drm_mode_object *object)
		244	{
1179	serge	245	mutex_lock(&dev->mode_config.idr_mutex);
1123	serge	246	idr_remove(&dev->mode_config.crtc_idr, object->id);
1179	serge	247	mutex_unlock(&dev->mode_config.idr_mutex);
1123	serge	248	}
		249
		250	void drm_mode_object_find(struct drm_device dev, uint32_t id, uint32_t type)
		251	{
		252	struct drm_mode_object *obj = NULL;
		253
1179	serge	254	mutex_lock(&dev->mode_config.idr_mutex);
1123	serge	255	obj = idr_find(&dev->mode_config.crtc_idr, id);
		256	if (!obj \|\| (obj->type != type) \|\| (obj->id != id))
		257	obj = NULL;
1179	serge	258	mutex_unlock(&dev->mode_config.idr_mutex);
1123	serge	259
		260	return obj;
		261	}
		262	EXPORT_SYMBOL(drm_mode_object_find);
		263
		264	/**
		265	* drm_framebuffer_init - initialize a framebuffer
		266	* @dev: DRM device
		267	*
		268	* LOCKING:
		269	* Caller must hold mode config lock.
		270	*
		271	* Allocates an ID for the framebuffer's parent mode object, sets its mode
		272	* functions & device file and adds it to the master fd list.
		273	*
		274	* RETURNS:
		275	* Zero on success, error code on falure.
		276	*/
		277	int drm_framebuffer_init(struct drm_device dev, struct drm_framebuffer fb,
		278	const struct drm_framebuffer_funcs *funcs)
		279	{
		280	int ret;
1179	serge	281
1123	serge	282	ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
		283	if (ret) {
		284	return ret;
		285	}
		286
		287	fb->dev = dev;
		288	fb->funcs = funcs;
		289	dev->mode_config.num_fb++;
		290	list_add(&fb->head, &dev->mode_config.fb_list);
		291
		292	return 0;
		293	}
		294	EXPORT_SYMBOL(drm_framebuffer_init);
		295
		296	/**
		297	* drm_framebuffer_cleanup - remove a framebuffer object
		298	* @fb: framebuffer to remove
		299	*
		300	* LOCKING:
		301	* Caller must hold mode config lock.
		302	*
		303	* Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes
		304	* it, setting it to NULL.
		305	*/
		306	void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
		307	{
		308	struct drm_device *dev = fb->dev;
		309	struct drm_crtc *crtc;
1179	serge	310	struct drm_mode_set set;
		311	int ret;
1123	serge	312
		313	/* remove from any CRTC */
		314	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1179	serge	315	if (crtc->fb == fb) {
		316	/* should turn off the crtc */
		317	memset(&set, 0, sizeof(struct drm_mode_set));
		318	set.crtc = crtc;
		319	set.fb = NULL;
		320	ret = crtc->funcs->set_config(&set);
		321	if (ret)
		322	DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
		323	}
1123	serge	324	}
		325
		326	drm_mode_object_put(dev, &fb->base);
		327	list_del(&fb->head);
		328	dev->mode_config.num_fb--;
		329	}
		330	EXPORT_SYMBOL(drm_framebuffer_cleanup);
		331
		332	/**
		333	* drm_crtc_init - Initialise a new CRTC object
		334	* @dev: DRM device
		335	* @crtc: CRTC object to init
		336	* @funcs: callbacks for the new CRTC
		337	*
		338	* LOCKING:
		339	* Caller must hold mode config lock.
		340	*
		341	* Inits a new object created as base part of an driver crtc object.
		342	*/
		343	void drm_crtc_init(struct drm_device dev, struct drm_crtc crtc,
		344	const struct drm_crtc_funcs *funcs)
		345	{
		346	crtc->dev = dev;
		347	crtc->funcs = funcs;
		348
1179	serge	349	mutex_lock(&dev->mode_config.mutex);
1123	serge	350	drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
		351
		352	list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
		353	dev->mode_config.num_crtc++;
1179	serge	354	mutex_unlock(&dev->mode_config.mutex);
1123	serge	355	}
		356	EXPORT_SYMBOL(drm_crtc_init);
		357
		358	/**
		359	* drm_crtc_cleanup - Cleans up the core crtc usage.
		360	* @crtc: CRTC to cleanup
		361	*
		362	* LOCKING:
		363	* Caller must hold mode config lock.
		364	*
		365	* Cleanup @crtc. Removes from drm modesetting space
		366	* does NOT free object, caller does that.
		367	*/
		368	void drm_crtc_cleanup(struct drm_crtc *crtc)
		369	{
		370	struct drm_device *dev = crtc->dev;
		371
		372	if (crtc->gamma_store) {
		373	kfree(crtc->gamma_store);
		374	crtc->gamma_store = NULL;
		375	}
		376
		377	drm_mode_object_put(dev, &crtc->base);
		378	list_del(&crtc->head);
		379	dev->mode_config.num_crtc--;
		380	}
		381	EXPORT_SYMBOL(drm_crtc_cleanup);
		382
		383	/**
		384	* drm_mode_probed_add - add a mode to a connector's probed mode list
		385	* @connector: connector the new mode
		386	* @mode: mode data
		387	*
		388	* LOCKING:
		389	* Caller must hold mode config lock.
		390	*
		391	* Add @mode to @connector's mode list for later use.
		392	*/
		393	void drm_mode_probed_add(struct drm_connector *connector,
		394	struct drm_display_mode *mode)
		395	{
		396	list_add(&mode->head, &connector->probed_modes);
		397	}
		398	EXPORT_SYMBOL(drm_mode_probed_add);
		399
		400	/**
		401	* drm_mode_remove - remove and free a mode
		402	* @connector: connector list to modify
		403	* @mode: mode to remove
		404	*
		405	* LOCKING:
		406	* Caller must hold mode config lock.
		407	*
		408	* Remove @mode from @connector's mode list, then free it.
		409	*/
		410	void drm_mode_remove(struct drm_connector *connector,
		411	struct drm_display_mode *mode)
		412	{
		413	list_del(&mode->head);
		414	kfree(mode);
		415	}
		416	EXPORT_SYMBOL(drm_mode_remove);
		417
		418	/**
		419	* drm_connector_init - Init a preallocated connector
		420	* @dev: DRM device
		421	* @connector: the connector to init
		422	* @funcs: callbacks for this connector
		423	* @name: user visible name of the connector
		424	*
		425	* LOCKING:
		426	* Caller must hold @dev's mode_config lock.
		427	*
		428	* Initialises a preallocated connector. Connectors should be
		429	* subclassed as part of driver connector objects.
		430	*/
		431	void drm_connector_init(struct drm_device *dev,
		432	struct drm_connector *connector,
		433	const struct drm_connector_funcs *funcs,
		434	int connector_type)
		435	{
1179	serge	436	mutex_lock(&dev->mode_config.mutex);
1123	serge	437
		438	connector->dev = dev;
		439	connector->funcs = funcs;
		440	drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
		441	connector->connector_type = connector_type;
		442	connector->connector_type_id =
		443	++drm_connector_enum_list[connector_type].count; /* TODO */
		444	INIT_LIST_HEAD(&connector->user_modes);
		445	INIT_LIST_HEAD(&connector->probed_modes);
		446	INIT_LIST_HEAD(&connector->modes);
		447	connector->edid_blob_ptr = NULL;
		448
		449	list_add_tail(&connector->head, &dev->mode_config.connector_list);
		450	dev->mode_config.num_connector++;
		451
		452	drm_connector_attach_property(connector,
		453	dev->mode_config.edid_property, 0);
		454
		455	drm_connector_attach_property(connector,
		456	dev->mode_config.dpms_property, 0);
		457
1179	serge	458	mutex_unlock(&dev->mode_config.mutex);
1123	serge	459	}
		460	EXPORT_SYMBOL(drm_connector_init);
		461
		462	/**
		463	* drm_connector_cleanup - cleans up an initialised connector
		464	* @connector: connector to cleanup
		465	*
		466	* LOCKING:
		467	* Caller must hold @dev's mode_config lock.
		468	*
		469	* Cleans up the connector but doesn't free the object.
		470	*/
		471	void drm_connector_cleanup(struct drm_connector *connector)
		472	{
		473	struct drm_device *dev = connector->dev;
		474	struct drm_display_mode mode, t;
		475
		476	list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
		477	drm_mode_remove(connector, mode);
		478
		479	list_for_each_entry_safe(mode, t, &connector->modes, head)
		480	drm_mode_remove(connector, mode);
		481
		482	list_for_each_entry_safe(mode, t, &connector->user_modes, head)
		483	drm_mode_remove(connector, mode);
		484
1221	serge	485	kfree(connector->fb_helper_private);
1179	serge	486	mutex_lock(&dev->mode_config.mutex);
1123	serge	487	drm_mode_object_put(dev, &connector->base);
		488	list_del(&connector->head);
1179	serge	489	mutex_unlock(&dev->mode_config.mutex);
1123	serge	490	}
		491	EXPORT_SYMBOL(drm_connector_cleanup);
		492
		493	void drm_encoder_init(struct drm_device *dev,
		494	struct drm_encoder *encoder,
		495	const struct drm_encoder_funcs *funcs,
		496	int encoder_type)
		497	{
1179	serge	498	mutex_lock(&dev->mode_config.mutex);
1123	serge	499
		500	encoder->dev = dev;
		501
		502	drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
		503	encoder->encoder_type = encoder_type;
		504	encoder->funcs = funcs;
		505
		506	list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
		507	dev->mode_config.num_encoder++;
		508
1179	serge	509	mutex_unlock(&dev->mode_config.mutex);
1123	serge	510	}
		511	EXPORT_SYMBOL(drm_encoder_init);
		512
		513	void drm_encoder_cleanup(struct drm_encoder *encoder)
		514	{
		515	struct drm_device *dev = encoder->dev;
1179	serge	516	mutex_lock(&dev->mode_config.mutex);
1123	serge	517	drm_mode_object_put(dev, &encoder->base);
		518	list_del(&encoder->head);
1179	serge	519	mutex_unlock(&dev->mode_config.mutex);
1123	serge	520	}
		521	EXPORT_SYMBOL(drm_encoder_cleanup);
		522
		523	/**
		524	* drm_mode_create - create a new display mode
		525	* @dev: DRM device
		526	*
		527	* LOCKING:
		528	* Caller must hold DRM mode_config lock.
		529	*
		530	* Create a new drm_display_mode, give it an ID, and return it.
		531	*
		532	* RETURNS:
		533	* Pointer to new mode on success, NULL on error.
		534	*/
		535	struct drm_display_mode drm_mode_create(struct drm_device dev)
		536	{
		537	struct drm_display_mode *nmode;
		538
		539	nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
		540	if (!nmode)
		541	return NULL;
		542
		543	drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
		544	return nmode;
		545	}
		546	EXPORT_SYMBOL(drm_mode_create);
		547
		548	/**
		549	* drm_mode_destroy - remove a mode
		550	* @dev: DRM device
		551	* @mode: mode to remove
		552	*
		553	* LOCKING:
		554	* Caller must hold mode config lock.
		555	*
		556	* Free @mode's unique identifier, then free it.
		557	*/
		558	void drm_mode_destroy(struct drm_device dev, struct drm_display_mode mode)
		559	{
		560	drm_mode_object_put(dev, &mode->base);
		561
		562	kfree(mode);
		563	}
		564	EXPORT_SYMBOL(drm_mode_destroy);
		565
		566	static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
		567	{
		568	struct drm_property *edid;
		569	struct drm_property *dpms;
		570	int i;
		571
		572	/*
		573	* Standard properties (apply to all connectors)
		574	*/
		575	edid = drm_property_create(dev, DRM_MODE_PROP_BLOB \|
		576	DRM_MODE_PROP_IMMUTABLE,
		577	"EDID", 0);
		578	dev->mode_config.edid_property = edid;
		579
		580	dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM,
		581	"DPMS", ARRAY_SIZE(drm_dpms_enum_list));
		582	for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
		583	drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type,
		584	drm_dpms_enum_list[i].name);
		585	dev->mode_config.dpms_property = dpms;
		586
		587	return 0;
		588	}
		589
		590	/**
		591	* drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
		592	* @dev: DRM device
		593	*
		594	* Called by a driver the first time a DVI-I connector is made.
		595	*/
		596	int drm_mode_create_dvi_i_properties(struct drm_device *dev)
		597	{
		598	struct drm_property *dvi_i_selector;
		599	struct drm_property *dvi_i_subconnector;
		600	int i;
		601
		602	if (dev->mode_config.dvi_i_select_subconnector_property)
		603	return 0;
		604
		605	dvi_i_selector =
		606	drm_property_create(dev, DRM_MODE_PROP_ENUM,
		607	"select subconnector",
		608	ARRAY_SIZE(drm_dvi_i_select_enum_list));
		609	for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++)
		610	drm_property_add_enum(dvi_i_selector, i,
		611	drm_dvi_i_select_enum_list[i].type,
		612	drm_dvi_i_select_enum_list[i].name);
		613	dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
		614
		615	dvi_i_subconnector =
		616	drm_property_create(dev, DRM_MODE_PROP_ENUM \|
		617	DRM_MODE_PROP_IMMUTABLE,
		618	"subconnector",
		619	ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
		620	for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++)
		621	drm_property_add_enum(dvi_i_subconnector, i,
		622	drm_dvi_i_subconnector_enum_list[i].type,
		623	drm_dvi_i_subconnector_enum_list[i].name);
		624	dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
		625
		626	return 0;
		627	}
		628	EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
		629
		630	/**
		631	* drm_create_tv_properties - create TV specific connector properties
		632	* @dev: DRM device
		633	* @num_modes: number of different TV formats (modes) supported
		634	* @modes: array of pointers to strings containing name of each format
		635	*
		636	* Called by a driver's TV initialization routine, this function creates
		637	* the TV specific connector properties for a given device. Caller is
		638	* responsible for allocating a list of format names and passing them to
		639	* this routine.
		640	*/
		641	int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
		642	char *modes[])
		643	{
		644	struct drm_property *tv_selector;
		645	struct drm_property *tv_subconnector;
		646	int i;
		647
		648	if (dev->mode_config.tv_select_subconnector_property)
		649	return 0;
		650
		651	/*
		652	* Basic connector properties
		653	*/
		654	tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM,
		655	"select subconnector",
		656	ARRAY_SIZE(drm_tv_select_enum_list));
		657	for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++)
		658	drm_property_add_enum(tv_selector, i,
		659	drm_tv_select_enum_list[i].type,
		660	drm_tv_select_enum_list[i].name);
		661	dev->mode_config.tv_select_subconnector_property = tv_selector;
		662
		663	tv_subconnector =
		664	drm_property_create(dev, DRM_MODE_PROP_ENUM \|
		665	DRM_MODE_PROP_IMMUTABLE, "subconnector",
		666	ARRAY_SIZE(drm_tv_subconnector_enum_list));
		667	for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++)
		668	drm_property_add_enum(tv_subconnector, i,
		669	drm_tv_subconnector_enum_list[i].type,
		670	drm_tv_subconnector_enum_list[i].name);
		671	dev->mode_config.tv_subconnector_property = tv_subconnector;
		672
		673	/*
		674	* Other, TV specific properties: margins & TV modes.
		675	*/
		676	dev->mode_config.tv_left_margin_property =
		677	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		678	"left margin", 2);
		679	dev->mode_config.tv_left_margin_property->values[0] = 0;
		680	dev->mode_config.tv_left_margin_property->values[1] = 100;
		681
		682	dev->mode_config.tv_right_margin_property =
		683	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		684	"right margin", 2);
		685	dev->mode_config.tv_right_margin_property->values[0] = 0;
		686	dev->mode_config.tv_right_margin_property->values[1] = 100;
		687
		688	dev->mode_config.tv_top_margin_property =
		689	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		690	"top margin", 2);
		691	dev->mode_config.tv_top_margin_property->values[0] = 0;
		692	dev->mode_config.tv_top_margin_property->values[1] = 100;
		693
		694	dev->mode_config.tv_bottom_margin_property =
		695	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		696	"bottom margin", 2);
		697	dev->mode_config.tv_bottom_margin_property->values[0] = 0;
		698	dev->mode_config.tv_bottom_margin_property->values[1] = 100;
		699
		700	dev->mode_config.tv_mode_property =
		701	drm_property_create(dev, DRM_MODE_PROP_ENUM,
		702	"mode", num_modes);
		703	for (i = 0; i < num_modes; i++)
		704	drm_property_add_enum(dev->mode_config.tv_mode_property, i,
		705	i, modes[i]);
		706
1179	serge	707	dev->mode_config.tv_brightness_property =
		708	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		709	"brightness", 2);
		710	dev->mode_config.tv_brightness_property->values[0] = 0;
		711	dev->mode_config.tv_brightness_property->values[1] = 100;
		712
		713	dev->mode_config.tv_contrast_property =
		714	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		715	"contrast", 2);
		716	dev->mode_config.tv_contrast_property->values[0] = 0;
		717	dev->mode_config.tv_contrast_property->values[1] = 100;
		718
		719	dev->mode_config.tv_flicker_reduction_property =
		720	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		721	"flicker reduction", 2);
		722	dev->mode_config.tv_flicker_reduction_property->values[0] = 0;
		723	dev->mode_config.tv_flicker_reduction_property->values[1] = 100;
		724
		725	dev->mode_config.tv_overscan_property =
		726	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		727	"overscan", 2);
		728	dev->mode_config.tv_overscan_property->values[0] = 0;
		729	dev->mode_config.tv_overscan_property->values[1] = 100;
		730
		731	dev->mode_config.tv_saturation_property =
		732	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		733	"saturation", 2);
		734	dev->mode_config.tv_saturation_property->values[0] = 0;
		735	dev->mode_config.tv_saturation_property->values[1] = 100;
		736
		737	dev->mode_config.tv_hue_property =
		738	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		739	"hue", 2);
		740	dev->mode_config.tv_hue_property->values[0] = 0;
		741	dev->mode_config.tv_hue_property->values[1] = 100;
		742
1123	serge	743	return 0;
		744	}
		745	EXPORT_SYMBOL(drm_mode_create_tv_properties);
		746
		747	/**
		748	* drm_mode_create_scaling_mode_property - create scaling mode property
		749	* @dev: DRM device
		750	*
		751	* Called by a driver the first time it's needed, must be attached to desired
		752	* connectors.
		753	*/
		754	int drm_mode_create_scaling_mode_property(struct drm_device *dev)
		755	{
		756	struct drm_property *scaling_mode;
		757	int i;
		758
		759	if (dev->mode_config.scaling_mode_property)
		760	return 0;
		761
		762	scaling_mode =
		763	drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode",
		764	ARRAY_SIZE(drm_scaling_mode_enum_list));
		765	for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++)
		766	drm_property_add_enum(scaling_mode, i,
		767	drm_scaling_mode_enum_list[i].type,
		768	drm_scaling_mode_enum_list[i].name);
		769
		770	dev->mode_config.scaling_mode_property = scaling_mode;
		771
		772	return 0;
		773	}
		774	EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
		775
		776	/**
		777	* drm_mode_create_dithering_property - create dithering property
		778	* @dev: DRM device
		779	*
		780	* Called by a driver the first time it's needed, must be attached to desired
		781	* connectors.
		782	*/
		783	int drm_mode_create_dithering_property(struct drm_device *dev)
		784	{
		785	struct drm_property *dithering_mode;
		786	int i;
		787
		788	if (dev->mode_config.dithering_mode_property)
		789	return 0;
		790
		791	dithering_mode =
		792	drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering",
		793	ARRAY_SIZE(drm_dithering_mode_enum_list));
		794	for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++)
		795	drm_property_add_enum(dithering_mode, i,
		796	drm_dithering_mode_enum_list[i].type,
		797	drm_dithering_mode_enum_list[i].name);
		798	dev->mode_config.dithering_mode_property = dithering_mode;
		799
		800	return 0;
		801	}
		802	EXPORT_SYMBOL(drm_mode_create_dithering_property);
		803
		804	/**
		805	* drm_mode_config_init - initialize DRM mode_configuration structure
		806	* @dev: DRM device
		807	*
		808	* LOCKING:
		809	* None, should happen single threaded at init time.
		810	*
		811	* Initialize @dev's mode_config structure, used for tracking the graphics
		812	* configuration of @dev.
		813	*/
		814	void drm_mode_config_init(struct drm_device *dev)
		815	{
		816	// mutex_init(&dev->mode_config.mutex);
		817	// mutex_init(&dev->mode_config.idr_mutex);
		818	INIT_LIST_HEAD(&dev->mode_config.fb_list);
		819	INIT_LIST_HEAD(&dev->mode_config.fb_kernel_list);
		820	INIT_LIST_HEAD(&dev->mode_config.crtc_list);
		821	INIT_LIST_HEAD(&dev->mode_config.connector_list);
		822	INIT_LIST_HEAD(&dev->mode_config.encoder_list);
		823	INIT_LIST_HEAD(&dev->mode_config.property_list);
		824	INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
		825	idr_init(&dev->mode_config.crtc_idr);
		826
1179	serge	827	mutex_lock(&dev->mode_config.mutex);
1123	serge	828	drm_mode_create_standard_connector_properties(dev);
1179	serge	829	mutex_unlock(&dev->mode_config.mutex);
1123	serge	830
		831	/* Just to be sure */
		832	dev->mode_config.num_fb = 0;
		833	dev->mode_config.num_connector = 0;
		834	dev->mode_config.num_crtc = 0;
		835	dev->mode_config.num_encoder = 0;
		836	}
		837	EXPORT_SYMBOL(drm_mode_config_init);
		838
		839	int drm_mode_group_init(struct drm_device dev, struct drm_mode_group group)
		840	{
		841	uint32_t total_objects = 0;
		842
		843	total_objects += dev->mode_config.num_crtc;
		844	total_objects += dev->mode_config.num_connector;
		845	total_objects += dev->mode_config.num_encoder;
		846
		847	if (total_objects == 0)
		848	return -EINVAL;
		849
		850	group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
		851	if (!group->id_list)
		852	return -ENOMEM;
		853
		854	group->num_crtcs = 0;
		855	group->num_connectors = 0;
		856	group->num_encoders = 0;
		857	return 0;
		858	}
		859
		860	int drm_mode_group_init_legacy_group(struct drm_device *dev,
		861	struct drm_mode_group *group)
		862	{
		863	struct drm_crtc *crtc;
		864	struct drm_encoder *encoder;
		865	struct drm_connector *connector;
		866	int ret;
		867
		868	if ((ret = drm_mode_group_init(dev, group)))
		869	return ret;
		870
		871	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
		872	group->id_list[group->num_crtcs++] = crtc->base.id;
		873
		874	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
		875	group->id_list[group->num_crtcs + group->num_encoders++] =
		876	encoder->base.id;
		877
		878	list_for_each_entry(connector, &dev->mode_config.connector_list, head)
		879	group->id_list[group->num_crtcs + group->num_encoders +
		880	group->num_connectors++] = connector->base.id;
		881
		882	return 0;
		883	}
		884
		885	/**
		886	* drm_mode_config_cleanup - free up DRM mode_config info
		887	* @dev: DRM device
		888	*
		889	* LOCKING:
		890	* Caller must hold mode config lock.
		891	*
		892	* Free up all the connectors and CRTCs associated with this DRM device, then
		893	* free up the framebuffers and associated buffer objects.
		894	*
		895	* FIXME: cleanup any dangling user buffer objects too
		896	*/
		897	void drm_mode_config_cleanup(struct drm_device *dev)
		898	{
		899	struct drm_connector connector, ot;
		900	struct drm_crtc crtc, ct;
		901	struct drm_encoder encoder, enct;
		902	struct drm_framebuffer fb, fbt;
		903	struct drm_property property, pt;
		904
		905	list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
		906	head) {
		907	encoder->funcs->destroy(encoder);
		908	}
		909
		910	list_for_each_entry_safe(connector, ot,
		911	&dev->mode_config.connector_list, head) {
		912	connector->funcs->destroy(connector);
		913	}
		914
		915	list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
		916	head) {
		917	drm_property_destroy(dev, property);
		918	}
		919
		920	list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
		921	fb->funcs->destroy(fb);
		922	}
		923
		924	list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
		925	crtc->funcs->destroy(crtc);
		926	}
		927
		928	}
		929	EXPORT_SYMBOL(drm_mode_config_cleanup);
		930
		931	/**
		932	* drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
		933	* @out: drm_mode_modeinfo struct to return to the user
		934	* @in: drm_display_mode to use
		935	*
		936	* LOCKING:
		937	* None.
		938	*
		939	* Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
		940	* the user.
		941	*/
		942	void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
		943	struct drm_display_mode *in)
		944	{
		945	out->clock = in->clock;
		946	out->hdisplay = in->hdisplay;
		947	out->hsync_start = in->hsync_start;
		948	out->hsync_end = in->hsync_end;
		949	out->htotal = in->htotal;
		950	out->hskew = in->hskew;
		951	out->vdisplay = in->vdisplay;
		952	out->vsync_start = in->vsync_start;
		953	out->vsync_end = in->vsync_end;
		954	out->vtotal = in->vtotal;
		955	out->vscan = in->vscan;
		956	out->vrefresh = in->vrefresh;
		957	out->flags = in->flags;
		958	out->type = in->type;
		959	strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
		960	out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
		961	}
		962
		963	/**
		964	* drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
		965	* @out: drm_display_mode to return to the user
		966	* @in: drm_mode_modeinfo to use
		967	*
		968	* LOCKING:
		969	* None.
		970	*
		971	* Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
		972	* the caller.
		973	*/
		974	void drm_crtc_convert_umode(struct drm_display_mode *out,
		975	struct drm_mode_modeinfo *in)
		976	{
		977	out->clock = in->clock;
		978	out->hdisplay = in->hdisplay;
		979	out->hsync_start = in->hsync_start;
		980	out->hsync_end = in->hsync_end;
		981	out->htotal = in->htotal;
		982	out->hskew = in->hskew;
		983	out->vdisplay = in->vdisplay;
		984	out->vsync_start = in->vsync_start;
		985	out->vsync_end = in->vsync_end;
		986	out->vtotal = in->vtotal;
		987	out->vscan = in->vscan;
		988	out->vrefresh = in->vrefresh;
		989	out->flags = in->flags;
		990	out->type = in->type;
		991	strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
		992	out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
		993	}
		994
		995
		996	#if 0
		997	/**
		998	* drm_mode_getresources - get graphics configuration
		999	* @inode: inode from the ioctl
		1000	* @filp: file * from the ioctl
		1001	* @cmd: cmd from ioctl
		1002	* @arg: arg from ioctl
		1003	*
		1004	* LOCKING:
		1005	* Takes mode config lock.
		1006	*
		1007	* Construct a set of configuration description structures and return
		1008	* them to the user, including CRTC, connector and framebuffer configuration.
		1009	*
		1010	* Called by the user via ioctl.
		1011	*
		1012	* RETURNS:
		1013	* Zero on success, errno on failure.
		1014	*/
		1015	int drm_mode_getresources(struct drm_device dev, void data,
		1016	struct drm_file *file_priv)
		1017	{
		1018	struct drm_mode_card_res *card_res = data;
		1019	struct list_head *lh;
		1020	struct drm_framebuffer *fb;
		1021	struct drm_connector *connector;
		1022	struct drm_crtc *crtc;
		1023	struct drm_encoder *encoder;
		1024	int ret = 0;
		1025	int connector_count = 0;
		1026	int crtc_count = 0;
		1027	int fb_count = 0;
		1028	int encoder_count = 0;
		1029	int copied = 0, i;
		1030	uint32_t __user *fb_id;
		1031	uint32_t __user *crtc_id;
		1032	uint32_t __user *connector_id;
		1033	uint32_t __user *encoder_id;
		1034	struct drm_mode_group *mode_group;
		1035
		1036	mutex_lock(&dev->mode_config.mutex);
		1037
		1038	/*
		1039	* For the non-control nodes we need to limit the list of resources
		1040	* by IDs in the group list for this node
		1041	*/
		1042	list_for_each(lh, &file_priv->fbs)
		1043	fb_count++;
		1044
		1045	mode_group = &file_priv->master->minor->mode_group;
		1046	if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
		1047
		1048	list_for_each(lh, &dev->mode_config.crtc_list)
		1049	crtc_count++;
		1050
		1051	list_for_each(lh, &dev->mode_config.connector_list)
		1052	connector_count++;
		1053
		1054	list_for_each(lh, &dev->mode_config.encoder_list)
		1055	encoder_count++;
		1056	} else {
		1057
		1058	crtc_count = mode_group->num_crtcs;
		1059	connector_count = mode_group->num_connectors;
		1060	encoder_count = mode_group->num_encoders;
		1061	}
		1062
		1063	card_res->max_height = dev->mode_config.max_height;
		1064	card_res->min_height = dev->mode_config.min_height;
		1065	card_res->max_width = dev->mode_config.max_width;
		1066	card_res->min_width = dev->mode_config.min_width;
		1067
		1068	/* handle this in 4 parts */
		1069	/* FBs */
		1070	if (card_res->count_fbs >= fb_count) {
		1071	copied = 0;
		1072	fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
		1073	list_for_each_entry(fb, &file_priv->fbs, head) {
		1074	if (put_user(fb->base.id, fb_id + copied)) {
		1075	ret = -EFAULT;
		1076	goto out;
		1077	}
		1078	copied++;
		1079	}
		1080	}
		1081	card_res->count_fbs = fb_count;
		1082
		1083	/* CRTCs */
		1084	if (card_res->count_crtcs >= crtc_count) {
		1085	copied = 0;
		1086	crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
		1087	if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
		1088	list_for_each_entry(crtc, &dev->mode_config.crtc_list,
		1089	head) {
1179	serge	1090	DRM_DEBUG_KMS("CRTC ID is %d\n", crtc->base.id);
1123	serge	1091	if (put_user(crtc->base.id, crtc_id + copied)) {
		1092	ret = -EFAULT;
		1093	goto out;
		1094	}
		1095	copied++;
		1096	}
		1097	} else {
		1098	for (i = 0; i < mode_group->num_crtcs; i++) {
		1099	if (put_user(mode_group->id_list[i],
		1100	crtc_id + copied)) {
		1101	ret = -EFAULT;
		1102	goto out;
		1103	}
		1104	copied++;
		1105	}
		1106	}
		1107	}
		1108	card_res->count_crtcs = crtc_count;
		1109
		1110	/* Encoders */
		1111	if (card_res->count_encoders >= encoder_count) {
		1112	copied = 0;
		1113	encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
		1114	if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
		1115	list_for_each_entry(encoder,
		1116	&dev->mode_config.encoder_list,
		1117	head) {
1179	serge	1118	DRM_DEBUG_KMS("ENCODER ID is %d\n",
1123	serge	1119	encoder->base.id);
		1120	if (put_user(encoder->base.id, encoder_id +
		1121	copied)) {
		1122	ret = -EFAULT;
		1123	goto out;
		1124	}
		1125	copied++;
		1126	}
		1127	} else {
		1128	for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
		1129	if (put_user(mode_group->id_list[i],
		1130	encoder_id + copied)) {
		1131	ret = -EFAULT;
		1132	goto out;
		1133	}
		1134	copied++;
		1135	}
		1136
		1137	}
		1138	}
		1139	card_res->count_encoders = encoder_count;
		1140
		1141	/* Connectors */
		1142	if (card_res->count_connectors >= connector_count) {
		1143	copied = 0;
		1144	connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
		1145	if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
		1146	list_for_each_entry(connector,
		1147	&dev->mode_config.connector_list,
		1148	head) {
1179	serge	1149	DRM_DEBUG_KMS("CONNECTOR ID is %d\n",
1123	serge	1150	connector->base.id);
		1151	if (put_user(connector->base.id,
		1152	connector_id + copied)) {
		1153	ret = -EFAULT;
		1154	goto out;
		1155	}
		1156	copied++;
		1157	}
		1158	} else {
		1159	int start = mode_group->num_crtcs +
		1160	mode_group->num_encoders;
		1161	for (i = start; i < start + mode_group->num_connectors; i++) {
		1162	if (put_user(mode_group->id_list[i],
		1163	connector_id + copied)) {
		1164	ret = -EFAULT;
		1165	goto out;
		1166	}
		1167	copied++;
		1168	}
		1169	}
		1170	}
		1171	card_res->count_connectors = connector_count;
		1172
1179	serge	1173	DRM_DEBUG_KMS("Counted %d %d %d\n", card_res->count_crtcs,
1123	serge	1174	card_res->count_connectors, card_res->count_encoders);
		1175
		1176	out:
		1177	mutex_unlock(&dev->mode_config.mutex);
		1178	return ret;
		1179	}
		1180
		1181	/**
		1182	* drm_mode_getcrtc - get CRTC configuration
		1183	* @inode: inode from the ioctl
		1184	* @filp: file * from the ioctl
		1185	* @cmd: cmd from ioctl
		1186	* @arg: arg from ioctl
		1187	*
		1188	* LOCKING:
		1189	* Caller? (FIXME)
		1190	*
		1191	* Construct a CRTC configuration structure to return to the user.
		1192	*
		1193	* Called by the user via ioctl.
		1194	*
		1195	* RETURNS:
		1196	* Zero on success, errno on failure.
		1197	*/
		1198	int drm_mode_getcrtc(struct drm_device *dev,
		1199	void data, struct drm_file file_priv)
		1200	{
		1201	struct drm_mode_crtc *crtc_resp = data;
		1202	struct drm_crtc *crtc;
		1203	struct drm_mode_object *obj;
		1204	int ret = 0;
		1205
		1206	mutex_lock(&dev->mode_config.mutex);
		1207
		1208	obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
		1209	DRM_MODE_OBJECT_CRTC);
		1210	if (!obj) {
		1211	ret = -EINVAL;
		1212	goto out;
		1213	}
		1214	crtc = obj_to_crtc(obj);
		1215
		1216	crtc_resp->x = crtc->x;
		1217	crtc_resp->y = crtc->y;
		1218	crtc_resp->gamma_size = crtc->gamma_size;
		1219	if (crtc->fb)
		1220	crtc_resp->fb_id = crtc->fb->base.id;
		1221	else
		1222	crtc_resp->fb_id = 0;
		1223
		1224	if (crtc->enabled) {
		1225
		1226	drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
		1227	crtc_resp->mode_valid = 1;
		1228
		1229	} else {
		1230	crtc_resp->mode_valid = 0;
		1231	}
		1232
		1233	out:
		1234	mutex_unlock(&dev->mode_config.mutex);
		1235	return ret;
		1236	}
		1237
		1238	/**
		1239	* drm_mode_getconnector - get connector configuration
		1240	* @inode: inode from the ioctl
		1241	* @filp: file * from the ioctl
		1242	* @cmd: cmd from ioctl
		1243	* @arg: arg from ioctl
		1244	*
		1245	* LOCKING:
		1246	* Caller? (FIXME)
		1247	*
		1248	* Construct a connector configuration structure to return to the user.
		1249	*
		1250	* Called by the user via ioctl.
		1251	*
		1252	* RETURNS:
		1253	* Zero on success, errno on failure.
		1254	*/
		1255	int drm_mode_getconnector(struct drm_device dev, void data,
		1256	struct drm_file *file_priv)
		1257	{
		1258	struct drm_mode_get_connector *out_resp = data;
		1259	struct drm_mode_object *obj;
		1260	struct drm_connector *connector;
		1261	struct drm_display_mode *mode;
		1262	int mode_count = 0;
		1263	int props_count = 0;
		1264	int encoders_count = 0;
		1265	int ret = 0;
		1266	int copied = 0;
		1267	int i;
		1268	struct drm_mode_modeinfo u_mode;
		1269	struct drm_mode_modeinfo __user *mode_ptr;
		1270	uint32_t __user *prop_ptr;
		1271	uint64_t __user *prop_values;
		1272	uint32_t __user *encoder_ptr;
		1273
		1274	memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
		1275
1179	serge	1276	DRM_DEBUG_KMS("connector id %d:\n", out_resp->connector_id);
1123	serge	1277
		1278	mutex_lock(&dev->mode_config.mutex);
		1279
		1280	obj = drm_mode_object_find(dev, out_resp->connector_id,
		1281	DRM_MODE_OBJECT_CONNECTOR);
		1282	if (!obj) {
		1283	ret = -EINVAL;
		1284	goto out;
		1285	}
		1286	connector = obj_to_connector(obj);
		1287
		1288	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
		1289	if (connector->property_ids[i] != 0) {
		1290	props_count++;
		1291	}
		1292	}
		1293
		1294	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		1295	if (connector->encoder_ids[i] != 0) {
		1296	encoders_count++;
		1297	}
		1298	}
		1299
		1300	if (out_resp->count_modes == 0) {
		1301	connector->funcs->fill_modes(connector,
		1302	dev->mode_config.max_width,
		1303	dev->mode_config.max_height);
		1304	}
		1305
		1306	/* delayed so we get modes regardless of pre-fill_modes state */
		1307	list_for_each_entry(mode, &connector->modes, head)
		1308	mode_count++;
		1309
		1310	out_resp->connector_id = connector->base.id;
		1311	out_resp->connector_type = connector->connector_type;
		1312	out_resp->connector_type_id = connector->connector_type_id;
		1313	out_resp->mm_width = connector->display_info.width_mm;
		1314	out_resp->mm_height = connector->display_info.height_mm;
		1315	out_resp->subpixel = connector->display_info.subpixel_order;
		1316	out_resp->connection = connector->status;
		1317	if (connector->encoder)
		1318	out_resp->encoder_id = connector->encoder->base.id;
		1319	else
		1320	out_resp->encoder_id = 0;
		1321
		1322	/*
		1323	* This ioctl is called twice, once to determine how much space is
		1324	* needed, and the 2nd time to fill it.
		1325	*/
		1326	if ((out_resp->count_modes >= mode_count) && mode_count) {
		1327	copied = 0;
		1328	mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr;
		1329	list_for_each_entry(mode, &connector->modes, head) {
		1330	drm_crtc_convert_to_umode(&u_mode, mode);
		1331	if (copy_to_user(mode_ptr + copied,
		1332	&u_mode, sizeof(u_mode))) {
		1333	ret = -EFAULT;
		1334	goto out;
		1335	}
		1336	copied++;
		1337	}
		1338	}
		1339	out_resp->count_modes = mode_count;
		1340
		1341	if ((out_resp->count_props >= props_count) && props_count) {
		1342	copied = 0;
		1343	prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr);
		1344	prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr);
		1345	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
		1346	if (connector->property_ids[i] != 0) {
		1347	if (put_user(connector->property_ids[i],
		1348	prop_ptr + copied)) {
		1349	ret = -EFAULT;
		1350	goto out;
		1351	}
		1352
		1353	if (put_user(connector->property_values[i],
		1354	prop_values + copied)) {
		1355	ret = -EFAULT;
		1356	goto out;
		1357	}
		1358	copied++;
		1359	}
		1360	}
		1361	}
		1362	out_resp->count_props = props_count;
		1363
		1364	if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
		1365	copied = 0;
		1366	encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr);
		1367	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		1368	if (connector->encoder_ids[i] != 0) {
		1369	if (put_user(connector->encoder_ids[i],
		1370	encoder_ptr + copied)) {
		1371	ret = -EFAULT;
		1372	goto out;
		1373	}
		1374	copied++;
		1375	}
		1376	}
		1377	}
		1378	out_resp->count_encoders = encoders_count;
		1379
		1380	out:
		1381	mutex_unlock(&dev->mode_config.mutex);
		1382	return ret;
		1383	}
		1384
		1385	int drm_mode_getencoder(struct drm_device dev, void data,
		1386	struct drm_file *file_priv)
		1387	{
		1388	struct drm_mode_get_encoder *enc_resp = data;
		1389	struct drm_mode_object *obj;
		1390	struct drm_encoder *encoder;
		1391	int ret = 0;
		1392
		1393	mutex_lock(&dev->mode_config.mutex);
		1394	obj = drm_mode_object_find(dev, enc_resp->encoder_id,
		1395	DRM_MODE_OBJECT_ENCODER);
		1396	if (!obj) {
		1397	ret = -EINVAL;
		1398	goto out;
		1399	}
		1400	encoder = obj_to_encoder(obj);
		1401
		1402	if (encoder->crtc)
		1403	enc_resp->crtc_id = encoder->crtc->base.id;
		1404	else
		1405	enc_resp->crtc_id = 0;
		1406	enc_resp->encoder_type = encoder->encoder_type;
		1407	enc_resp->encoder_id = encoder->base.id;
		1408	enc_resp->possible_crtcs = encoder->possible_crtcs;
		1409	enc_resp->possible_clones = encoder->possible_clones;
		1410
		1411	out:
		1412	mutex_unlock(&dev->mode_config.mutex);
		1413	return ret;
		1414	}
		1415
		1416	/**
		1417	* drm_mode_setcrtc - set CRTC configuration
		1418	* @inode: inode from the ioctl
		1419	* @filp: file * from the ioctl
		1420	* @cmd: cmd from ioctl
		1421	* @arg: arg from ioctl
		1422	*
		1423	* LOCKING:
		1424	* Caller? (FIXME)
		1425	*
		1426	* Build a new CRTC configuration based on user request.
		1427	*
		1428	* Called by the user via ioctl.
		1429	*
		1430	* RETURNS:
		1431	* Zero on success, errno on failure.
		1432	*/
		1433	int drm_mode_setcrtc(struct drm_device dev, void data,
		1434	struct drm_file *file_priv)
		1435	{
		1436	struct drm_mode_config *config = &dev->mode_config;
		1437	struct drm_mode_crtc *crtc_req = data;
		1438	struct drm_mode_object *obj;
		1439	struct drm_crtc crtc, crtcfb;
		1440	struct drm_connector *connector_set = NULL, connector;
		1441	struct drm_framebuffer *fb = NULL;
		1442	struct drm_display_mode *mode = NULL;
		1443	struct drm_mode_set set;
		1444	uint32_t __user *set_connectors_ptr;
		1445	int ret = 0;
		1446	int i;
		1447
		1448	mutex_lock(&dev->mode_config.mutex);
		1449	obj = drm_mode_object_find(dev, crtc_req->crtc_id,
		1450	DRM_MODE_OBJECT_CRTC);
		1451	if (!obj) {
1179	serge	1452	DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1123	serge	1453	ret = -EINVAL;
		1454	goto out;
		1455	}
		1456	crtc = obj_to_crtc(obj);
		1457
		1458	if (crtc_req->mode_valid) {
		1459	/* If we have a mode we need a framebuffer. */
		1460	/* If we pass -1, set the mode with the currently bound fb */
		1461	if (crtc_req->fb_id == -1) {
		1462	list_for_each_entry(crtcfb,
		1463	&dev->mode_config.crtc_list, head) {
		1464	if (crtcfb == crtc) {
1179	serge	1465	DRM_DEBUG_KMS("Using current fb for "
		1466	"setmode\n");
1123	serge	1467	fb = crtc->fb;
		1468	}
		1469	}
		1470	} else {
		1471	obj = drm_mode_object_find(dev, crtc_req->fb_id,
		1472	DRM_MODE_OBJECT_FB);
		1473	if (!obj) {
1179	serge	1474	DRM_DEBUG_KMS("Unknown FB ID%d\n",
		1475	crtc_req->fb_id);
1123	serge	1476	ret = -EINVAL;
		1477	goto out;
		1478	}
		1479	fb = obj_to_fb(obj);
		1480	}
		1481
		1482	mode = drm_mode_create(dev);
		1483	drm_crtc_convert_umode(mode, &crtc_req->mode);
		1484	drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
		1485	}
		1486
		1487	if (crtc_req->count_connectors == 0 && mode) {
1179	serge	1488	DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
1123	serge	1489	ret = -EINVAL;
		1490	goto out;
		1491	}
		1492
1179	serge	1493	if (crtc_req->count_connectors > 0 && (!mode \|\| !fb)) {
		1494	DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
1123	serge	1495	crtc_req->count_connectors);
		1496	ret = -EINVAL;
		1497	goto out;
		1498	}
		1499
		1500	if (crtc_req->count_connectors > 0) {
		1501	u32 out_id;
		1502
		1503	/* Avoid unbounded kernel memory allocation */
		1504	if (crtc_req->count_connectors > config->num_connector) {
		1505	ret = -EINVAL;
		1506	goto out;
		1507	}
		1508
		1509	connector_set = kmalloc(crtc_req->count_connectors *
		1510	sizeof(struct drm_connector *),
		1511	GFP_KERNEL);
		1512	if (!connector_set) {
		1513	ret = -ENOMEM;
		1514	goto out;
		1515	}
		1516
		1517	for (i = 0; i < crtc_req->count_connectors; i++) {
		1518	set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr;
		1519	if (get_user(out_id, &set_connectors_ptr[i])) {
		1520	ret = -EFAULT;
		1521	goto out;
		1522	}
		1523
		1524	obj = drm_mode_object_find(dev, out_id,
		1525	DRM_MODE_OBJECT_CONNECTOR);
		1526	if (!obj) {
1179	serge	1527	DRM_DEBUG_KMS("Connector id %d unknown\n",
		1528	out_id);
1123	serge	1529	ret = -EINVAL;
		1530	goto out;
		1531	}
		1532	connector = obj_to_connector(obj);
		1533
		1534	connector_set[i] = connector;
		1535	}
		1536	}
		1537
		1538	set.crtc = crtc;
		1539	set.x = crtc_req->x;
		1540	set.y = crtc_req->y;
		1541	set.mode = mode;
		1542	set.connectors = connector_set;
		1543	set.num_connectors = crtc_req->count_connectors;
1179	serge	1544	set.fb = fb;
1123	serge	1545	ret = crtc->funcs->set_config(&set);
		1546
		1547	out:
		1548	kfree(connector_set);
		1549	mutex_unlock(&dev->mode_config.mutex);
		1550	return ret;
		1551	}
		1552
		1553	int drm_mode_cursor_ioctl(struct drm_device *dev,
		1554	void data, struct drm_file file_priv)
		1555	{
		1556	struct drm_mode_cursor *req = data;
		1557	struct drm_mode_object *obj;
		1558	struct drm_crtc *crtc;
		1559	int ret = 0;
		1560
		1561	if (!req->flags) {
		1562	DRM_ERROR("no operation set\n");
		1563	return -EINVAL;
		1564	}
		1565
		1566	mutex_lock(&dev->mode_config.mutex);
		1567	obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
		1568	if (!obj) {
1179	serge	1569	DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
1123	serge	1570	ret = -EINVAL;
		1571	goto out;
		1572	}
		1573	crtc = obj_to_crtc(obj);
		1574
		1575	if (req->flags & DRM_MODE_CURSOR_BO) {
		1576	if (!crtc->funcs->cursor_set) {
		1577	DRM_ERROR("crtc does not support cursor\n");
		1578	ret = -ENXIO;
		1579	goto out;
		1580	}
		1581	/* Turns off the cursor if handle is 0 */
		1582	ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
		1583	req->width, req->height);
		1584	}
		1585
		1586	if (req->flags & DRM_MODE_CURSOR_MOVE) {
		1587	if (crtc->funcs->cursor_move) {
		1588	ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
		1589	} else {
		1590	DRM_ERROR("crtc does not support cursor\n");
		1591	ret = -EFAULT;
		1592	goto out;
		1593	}
		1594	}
		1595	out:
		1596	mutex_unlock(&dev->mode_config.mutex);
		1597	return ret;
		1598	}
		1599
		1600	/**
		1601	* drm_mode_addfb - add an FB to the graphics configuration
		1602	* @inode: inode from the ioctl
		1603	* @filp: file * from the ioctl
		1604	* @cmd: cmd from ioctl
		1605	* @arg: arg from ioctl
		1606	*
		1607	* LOCKING:
		1608	* Takes mode config lock.
		1609	*
		1610	* Add a new FB to the specified CRTC, given a user request.
		1611	*
		1612	* Called by the user via ioctl.
		1613	*
		1614	* RETURNS:
		1615	* Zero on success, errno on failure.
		1616	*/
		1617	int drm_mode_addfb(struct drm_device *dev,
		1618	void data, struct drm_file file_priv)
		1619	{
		1620	struct drm_mode_fb_cmd *r = data;
		1621	struct drm_mode_config *config = &dev->mode_config;
		1622	struct drm_framebuffer *fb;
		1623	int ret = 0;
		1624
		1625	if ((config->min_width > r->width) \|\| (r->width > config->max_width)) {
		1626	DRM_ERROR("mode new framebuffer width not within limits\n");
		1627	return -EINVAL;
		1628	}
		1629	if ((config->min_height > r->height) \|\| (r->height > config->max_height)) {
		1630	DRM_ERROR("mode new framebuffer height not within limits\n");
		1631	return -EINVAL;
		1632	}
		1633
		1634	mutex_lock(&dev->mode_config.mutex);
		1635
		1636	/* TODO check buffer is sufficently large */
		1637	/* TODO setup destructor callback */
		1638
		1639	fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
		1640	if (!fb) {
		1641	DRM_ERROR("could not create framebuffer\n");
		1642	ret = -EINVAL;
		1643	goto out;
		1644	}
		1645
		1646	r->fb_id = fb->base.id;
		1647	list_add(&fb->filp_head, &file_priv->fbs);
		1648
		1649	out:
		1650	mutex_unlock(&dev->mode_config.mutex);
		1651	return ret;
		1652	}
		1653
		1654	/**
		1655	* drm_mode_rmfb - remove an FB from the configuration
		1656	* @inode: inode from the ioctl
		1657	* @filp: file * from the ioctl
		1658	* @cmd: cmd from ioctl
		1659	* @arg: arg from ioctl
		1660	*
		1661	* LOCKING:
		1662	* Takes mode config lock.
		1663	*
		1664	* Remove the FB specified by the user.
		1665	*
		1666	* Called by the user via ioctl.
		1667	*
		1668	* RETURNS:
		1669	* Zero on success, errno on failure.
		1670	*/
		1671	int drm_mode_rmfb(struct drm_device *dev,
		1672	void data, struct drm_file file_priv)
		1673	{
		1674	struct drm_mode_object *obj;
		1675	struct drm_framebuffer *fb = NULL;
		1676	struct drm_framebuffer *fbl = NULL;
		1677	uint32_t *id = data;
		1678	int ret = 0;
		1679	int found = 0;
		1680
		1681	mutex_lock(&dev->mode_config.mutex);
		1682	obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
		1683	/* TODO check that we realy get a framebuffer back. */
		1684	if (!obj) {
		1685	DRM_ERROR("mode invalid framebuffer id\n");
		1686	ret = -EINVAL;
		1687	goto out;
		1688	}
		1689	fb = obj_to_fb(obj);
		1690
		1691	list_for_each_entry(fbl, &file_priv->fbs, filp_head)
		1692	if (fb == fbl)
		1693	found = 1;
		1694
		1695	if (!found) {
		1696	DRM_ERROR("tried to remove a fb that we didn't own\n");
		1697	ret = -EINVAL;
		1698	goto out;
		1699	}
		1700
		1701	/* TODO release all crtc connected to the framebuffer */
		1702	/* TODO unhock the destructor from the buffer object */
		1703
		1704	list_del(&fb->filp_head);
		1705	fb->funcs->destroy(fb);
		1706
		1707	out:
		1708	mutex_unlock(&dev->mode_config.mutex);
		1709	return ret;
		1710	}
		1711
		1712	/**
		1713	* drm_mode_getfb - get FB info
		1714	* @inode: inode from the ioctl
		1715	* @filp: file * from the ioctl
		1716	* @cmd: cmd from ioctl
		1717	* @arg: arg from ioctl
		1718	*
		1719	* LOCKING:
		1720	* Caller? (FIXME)
		1721	*
		1722	* Lookup the FB given its ID and return info about it.
		1723	*
		1724	* Called by the user via ioctl.
		1725	*
		1726	* RETURNS:
		1727	* Zero on success, errno on failure.
		1728	*/
		1729	int drm_mode_getfb(struct drm_device *dev,
		1730	void data, struct drm_file file_priv)
		1731	{
		1732	struct drm_mode_fb_cmd *r = data;
		1733	struct drm_mode_object *obj;
		1734	struct drm_framebuffer *fb;
		1735	int ret = 0;
		1736
		1737	mutex_lock(&dev->mode_config.mutex);
		1738	obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
		1739	if (!obj) {
		1740	DRM_ERROR("invalid framebuffer id\n");
		1741	ret = -EINVAL;
		1742	goto out;
		1743	}
		1744	fb = obj_to_fb(obj);
		1745
		1746	r->height = fb->height;
		1747	r->width = fb->width;
		1748	r->depth = fb->depth;
		1749	r->bpp = fb->bits_per_pixel;
		1750	r->pitch = fb->pitch;
		1751	fb->funcs->create_handle(fb, file_priv, &r->handle);
		1752
		1753	out:
		1754	mutex_unlock(&dev->mode_config.mutex);
		1755	return ret;
		1756	}
		1757
		1758	/**
		1759	* drm_fb_release - remove and free the FBs on this file
		1760	* @filp: file * from the ioctl
		1761	*
		1762	* LOCKING:
		1763	* Takes mode config lock.
		1764	*
		1765	* Destroy all the FBs associated with @filp.
		1766	*
		1767	* Called by the user via ioctl.
		1768	*
		1769	* RETURNS:
		1770	* Zero on success, errno on failure.
		1771	*/
		1772	void drm_fb_release(struct drm_file *priv)
		1773	{
		1774	struct drm_device *dev = priv->minor->dev;
		1775	struct drm_framebuffer fb, tfb;
		1776
		1777	mutex_lock(&dev->mode_config.mutex);
		1778	list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
		1779	list_del(&fb->filp_head);
		1780	fb->funcs->destroy(fb);
		1781	}
		1782	mutex_unlock(&dev->mode_config.mutex);
		1783	}
		1784	#endif
		1785
		1786	/**
		1787	* drm_mode_attachmode - add a mode to the user mode list
		1788	* @dev: DRM device
		1789	* @connector: connector to add the mode to
		1790	* @mode: mode to add
		1791	*
		1792	* Add @mode to @connector's user mode list.
		1793	*/
		1794	static int drm_mode_attachmode(struct drm_device *dev,
		1795	struct drm_connector *connector,
		1796	struct drm_display_mode *mode)
		1797	{
		1798	int ret = 0;
		1799
		1800	list_add_tail(&mode->head, &connector->user_modes);
		1801	return ret;
		1802	}
		1803
		1804	int drm_mode_attachmode_crtc(struct drm_device dev, struct drm_crtc crtc,
		1805	struct drm_display_mode *mode)
		1806	{
		1807	struct drm_connector *connector;
		1808	int ret = 0;
		1809	struct drm_display_mode *dup_mode;
		1810	int need_dup = 0;
		1811	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		1812	if (!connector->encoder)
		1813	break;
		1814	if (connector->encoder->crtc == crtc) {
		1815	if (need_dup)
		1816	dup_mode = drm_mode_duplicate(dev, mode);
		1817	else
		1818	dup_mode = mode;
		1819	ret = drm_mode_attachmode(dev, connector, dup_mode);
		1820	if (ret)
		1821	return ret;
		1822	need_dup = 1;
		1823	}
		1824	}
		1825	return 0;
		1826	}
		1827	EXPORT_SYMBOL(drm_mode_attachmode_crtc);
		1828
		1829	static int drm_mode_detachmode(struct drm_device *dev,
		1830	struct drm_connector *connector,
		1831	struct drm_display_mode *mode)
		1832	{
		1833	int found = 0;
		1834	int ret = 0;
		1835	struct drm_display_mode match_mode, t;
		1836
		1837	list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
		1838	if (drm_mode_equal(match_mode, mode)) {
		1839	list_del(&match_mode->head);
		1840	drm_mode_destroy(dev, match_mode);
		1841	found = 1;
		1842	break;
		1843	}
		1844	}
		1845
		1846	if (!found)
		1847	ret = -EINVAL;
		1848
		1849	return ret;
		1850	}
		1851
		1852	int drm_mode_detachmode_crtc(struct drm_device dev, struct drm_display_mode mode)
		1853	{
		1854	struct drm_connector *connector;
		1855
		1856	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		1857	drm_mode_detachmode(dev, connector, mode);
		1858	}
		1859	return 0;
		1860	}
		1861	EXPORT_SYMBOL(drm_mode_detachmode_crtc);
		1862
		1863	#if 0
		1864
		1865	/**
		1866	* drm_fb_attachmode - Attach a user mode to an connector
		1867	* @inode: inode from the ioctl
		1868	* @filp: file * from the ioctl
		1869	* @cmd: cmd from ioctl
		1870	* @arg: arg from ioctl
		1871	*
		1872	* This attaches a user specified mode to an connector.
		1873	* Called by the user via ioctl.
		1874	*
		1875	* RETURNS:
		1876	* Zero on success, errno on failure.
		1877	*/
		1878	int drm_mode_attachmode_ioctl(struct drm_device *dev,
		1879	void data, struct drm_file file_priv)
		1880	{
		1881	struct drm_mode_mode_cmd *mode_cmd = data;
		1882	struct drm_connector *connector;
		1883	struct drm_display_mode *mode;
		1884	struct drm_mode_object *obj;
		1885	struct drm_mode_modeinfo *umode = &mode_cmd->mode;
		1886	int ret = 0;
		1887
		1888	mutex_lock(&dev->mode_config.mutex);
		1889
		1890	obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
		1891	if (!obj) {
		1892	ret = -EINVAL;
		1893	goto out;
		1894	}
		1895	connector = obj_to_connector(obj);
		1896
		1897	mode = drm_mode_create(dev);
		1898	if (!mode) {
		1899	ret = -ENOMEM;
		1900	goto out;
		1901	}
		1902
		1903	drm_crtc_convert_umode(mode, umode);
		1904
		1905	ret = drm_mode_attachmode(dev, connector, mode);
		1906	out:
		1907	mutex_unlock(&dev->mode_config.mutex);
		1908	return ret;
		1909	}
		1910
		1911
		1912	/**
		1913	* drm_fb_detachmode - Detach a user specified mode from an connector
		1914	* @inode: inode from the ioctl
		1915	* @filp: file * from the ioctl
		1916	* @cmd: cmd from ioctl
		1917	* @arg: arg from ioctl
		1918	*
		1919	* Called by the user via ioctl.
		1920	*
		1921	* RETURNS:
		1922	* Zero on success, errno on failure.
		1923	*/
		1924	int drm_mode_detachmode_ioctl(struct drm_device *dev,
		1925	void data, struct drm_file file_priv)
		1926	{
		1927	struct drm_mode_object *obj;
		1928	struct drm_mode_mode_cmd *mode_cmd = data;
		1929	struct drm_connector *connector;
		1930	struct drm_display_mode mode;
		1931	struct drm_mode_modeinfo *umode = &mode_cmd->mode;
		1932	int ret = 0;
		1933
		1934	mutex_lock(&dev->mode_config.mutex);
		1935
		1936	obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
		1937	if (!obj) {
		1938	ret = -EINVAL;
		1939	goto out;
		1940	}
		1941	connector = obj_to_connector(obj);
		1942
		1943	drm_crtc_convert_umode(&mode, umode);
		1944	ret = drm_mode_detachmode(dev, connector, &mode);
		1945	out:
		1946	mutex_unlock(&dev->mode_config.mutex);
		1947	return ret;
		1948	}
		1949	#endif
		1950
		1951	struct drm_property drm_property_create(struct drm_device dev, int flags,
		1952	const char *name, int num_values)
		1953	{
		1954	struct drm_property *property = NULL;
		1955
		1956	property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
		1957	if (!property)
		1958	return NULL;
		1959
		1960	if (num_values) {
		1961	property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
		1962	if (!property->values)
		1963	goto fail;
		1964	}
		1965
		1966	drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
		1967	property->flags = flags;
		1968	property->num_values = num_values;
		1969	INIT_LIST_HEAD(&property->enum_blob_list);
		1970
		1971	if (name)
		1972	strncpy(property->name, name, DRM_PROP_NAME_LEN);
		1973
		1974	list_add_tail(&property->head, &dev->mode_config.property_list);
		1975	return property;
		1976	fail:
		1977	kfree(property);
		1978	return NULL;
		1979	}
		1980	EXPORT_SYMBOL(drm_property_create);
		1981
		1982	int drm_property_add_enum(struct drm_property *property, int index,
		1983	uint64_t value, const char *name)
		1984	{
		1985	struct drm_property_enum *prop_enum;
		1986
		1987	if (!(property->flags & DRM_MODE_PROP_ENUM))
		1988	return -EINVAL;
		1989
		1990	if (!list_empty(&property->enum_blob_list)) {
		1991	list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
		1992	if (prop_enum->value == value) {
		1993	strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
		1994	prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
		1995	return 0;
		1996	}
		1997	}
		1998	}
		1999
		2000	prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
		2001	if (!prop_enum)
		2002	return -ENOMEM;
		2003
		2004	strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
		2005	prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
		2006	prop_enum->value = value;
		2007
		2008	property->values[index] = value;
		2009	list_add_tail(&prop_enum->head, &property->enum_blob_list);
		2010	return 0;
		2011	}
		2012	EXPORT_SYMBOL(drm_property_add_enum);
		2013
		2014	void drm_property_destroy(struct drm_device dev, struct drm_property property)
		2015	{
		2016	struct drm_property_enum prop_enum, pt;
		2017
		2018	list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
		2019	list_del(&prop_enum->head);
		2020	kfree(prop_enum);
		2021	}
		2022
		2023	if (property->num_values)
		2024	kfree(property->values);
		2025	drm_mode_object_put(dev, &property->base);
		2026	list_del(&property->head);
		2027	kfree(property);
		2028	}
		2029	EXPORT_SYMBOL(drm_property_destroy);
		2030
		2031	int drm_connector_attach_property(struct drm_connector *connector,
		2032	struct drm_property *property, uint64_t init_val)
		2033	{
		2034	int i;
		2035
		2036	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
		2037	if (connector->property_ids[i] == 0) {
		2038	connector->property_ids[i] = property->base.id;
		2039	connector->property_values[i] = init_val;
		2040	break;
		2041	}
		2042	}
		2043
		2044	if (i == DRM_CONNECTOR_MAX_PROPERTY)
		2045	return -EINVAL;
		2046	return 0;
		2047	}
		2048	EXPORT_SYMBOL(drm_connector_attach_property);
		2049
		2050	int drm_connector_property_set_value(struct drm_connector *connector,
		2051	struct drm_property *property, uint64_t value)
		2052	{
		2053	int i;
		2054
		2055	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
		2056	if (connector->property_ids[i] == property->base.id) {
		2057	connector->property_values[i] = value;
		2058	break;
		2059	}
		2060	}
		2061
		2062	if (i == DRM_CONNECTOR_MAX_PROPERTY)
		2063	return -EINVAL;
		2064	return 0;
		2065	}
		2066	EXPORT_SYMBOL(drm_connector_property_set_value);
		2067
		2068	int drm_connector_property_get_value(struct drm_connector *connector,
		2069	struct drm_property property, uint64_t val)
		2070	{
		2071	int i;
		2072
		2073	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
		2074	if (connector->property_ids[i] == property->base.id) {
		2075	*val = connector->property_values[i];
		2076	break;
		2077	}
		2078	}
		2079
		2080	if (i == DRM_CONNECTOR_MAX_PROPERTY)
		2081	return -EINVAL;
		2082	return 0;
		2083	}
		2084	EXPORT_SYMBOL(drm_connector_property_get_value);
		2085
		2086	#if 0
		2087	int drm_mode_getproperty_ioctl(struct drm_device *dev,
		2088	void data, struct drm_file file_priv)
		2089	{
		2090	struct drm_mode_object *obj;
		2091	struct drm_mode_get_property *out_resp = data;
		2092	struct drm_property *property;
		2093	int enum_count = 0;
		2094	int blob_count = 0;
		2095	int value_count = 0;
		2096	int ret = 0, i;
		2097	int copied;
		2098	struct drm_property_enum *prop_enum;
		2099	struct drm_mode_property_enum __user *enum_ptr;
		2100	struct drm_property_blob *prop_blob;
		2101	uint32_t *blob_id_ptr;
		2102	uint64_t __user *values_ptr;
		2103	uint32_t __user *blob_length_ptr;
		2104
1179	serge	2105	mutex_lock(&dev->mode_config.mutex);
1123	serge	2106	obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
		2107	if (!obj) {
		2108	ret = -EINVAL;
		2109	goto done;
		2110	}
		2111	property = obj_to_property(obj);
		2112
		2113	if (property->flags & DRM_MODE_PROP_ENUM) {
		2114	list_for_each_entry(prop_enum, &property->enum_blob_list, head)
		2115	enum_count++;
		2116	} else if (property->flags & DRM_MODE_PROP_BLOB) {
		2117	list_for_each_entry(prop_blob, &property->enum_blob_list, head)
		2118	blob_count++;
		2119	}
		2120
		2121	value_count = property->num_values;
		2122
		2123	strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
		2124	out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
		2125	out_resp->flags = property->flags;
		2126
		2127	if ((out_resp->count_values >= value_count) && value_count) {
		2128	values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr;
		2129	for (i = 0; i < value_count; i++) {
		2130	if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
		2131	ret = -EFAULT;
		2132	goto done;
		2133	}
		2134	}
		2135	}
		2136	out_resp->count_values = value_count;
		2137
		2138	if (property->flags & DRM_MODE_PROP_ENUM) {
		2139	if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
		2140	copied = 0;
		2141	enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr;
		2142	list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
		2143
		2144	if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
		2145	ret = -EFAULT;
		2146	goto done;
		2147	}
		2148
		2149	if (copy_to_user(&enum_ptr[copied].name,
		2150	&prop_enum->name, DRM_PROP_NAME_LEN)) {
		2151	ret = -EFAULT;
		2152	goto done;
		2153	}
		2154	copied++;
		2155	}
		2156	}
		2157	out_resp->count_enum_blobs = enum_count;
		2158	}
		2159
		2160	if (property->flags & DRM_MODE_PROP_BLOB) {
		2161	if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
		2162	copied = 0;
		2163	blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr;
		2164	blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr;
		2165
		2166	list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
		2167	if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
		2168	ret = -EFAULT;
		2169	goto done;
		2170	}
		2171
		2172	if (put_user(prop_blob->length, blob_length_ptr + copied)) {
		2173	ret = -EFAULT;
		2174	goto done;
		2175	}
		2176
		2177	copied++;
		2178	}
		2179	}
		2180	out_resp->count_enum_blobs = blob_count;
		2181	}
		2182	done:
1179	serge	2183	mutex_unlock(&dev->mode_config.mutex);
1123	serge	2184	return ret;
		2185	}
		2186	#endif
		2187
		2188	static struct drm_property_blob drm_property_create_blob(struct drm_device dev, int length,
		2189	void *data)
		2190	{
		2191	struct drm_property_blob *blob;
		2192
		2193	if (!length \|\| !data)
		2194	return NULL;
		2195
		2196	blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
		2197	if (!blob)
		2198	return NULL;
		2199
		2200	blob->data = (void )((char )blob + sizeof(struct drm_property_blob));
		2201	blob->length = length;
		2202
		2203	memcpy(blob->data, data, length);
		2204
		2205	drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
		2206
		2207	list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
		2208	return blob;
		2209	}
		2210
		2211	static void drm_property_destroy_blob(struct drm_device *dev,
		2212	struct drm_property_blob *blob)
		2213	{
		2214	drm_mode_object_put(dev, &blob->base);
		2215	list_del(&blob->head);
		2216	kfree(blob);
		2217	}
		2218
		2219	#if 0
		2220	int drm_mode_getblob_ioctl(struct drm_device *dev,
		2221	void data, struct drm_file file_priv)
		2222	{
		2223	struct drm_mode_object *obj;
		2224	struct drm_mode_get_blob *out_resp = data;
		2225	struct drm_property_blob *blob;
		2226	int ret = 0;
		2227	void *blob_ptr;
		2228
		2229	mutex_lock(&dev->mode_config.mutex);
		2230	obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
		2231	if (!obj) {
		2232	ret = -EINVAL;
		2233	goto done;
		2234	}
		2235	blob = obj_to_blob(obj);
		2236
		2237	if (out_resp->length == blob->length) {
		2238	blob_ptr = (void *)(unsigned long)out_resp->data;
		2239	if (copy_to_user(blob_ptr, blob->data, blob->length)){
		2240	ret = -EFAULT;
		2241	goto done;
		2242	}
		2243	}
		2244	out_resp->length = blob->length;
		2245
		2246	done:
		2247	mutex_unlock(&dev->mode_config.mutex);
		2248	return ret;
		2249	}
		2250	#endif
		2251
		2252	int drm_mode_connector_update_edid_property(struct drm_connector *connector,
		2253	struct edid *edid)
		2254	{
		2255	struct drm_device *dev = connector->dev;
		2256	int ret = 0;
		2257
		2258	if (connector->edid_blob_ptr)
		2259	drm_property_destroy_blob(dev, connector->edid_blob_ptr);
		2260
		2261	/* Delete edid, when there is none. */
		2262	if (!edid) {
		2263	connector->edid_blob_ptr = NULL;
		2264	ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
		2265	return ret;
		2266	}
		2267
		2268	connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 128, edid);
		2269
		2270	ret = drm_connector_property_set_value(connector,
		2271	dev->mode_config.edid_property,
		2272	connector->edid_blob_ptr->base.id);
		2273
		2274	return ret;
		2275	}
		2276	EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
		2277
		2278	#if 0
		2279	int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
		2280	void data, struct drm_file file_priv)
		2281	{
		2282	struct drm_mode_connector_set_property *out_resp = data;
		2283	struct drm_mode_object *obj;
		2284	struct drm_property *property;
		2285	struct drm_connector *connector;
		2286	int ret = -EINVAL;
		2287	int i;
		2288
1179	serge	2289	mutex_lock(&dev->mode_config.mutex);
1123	serge	2290
		2291	obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
		2292	if (!obj) {
		2293	goto out;
		2294	}
		2295	connector = obj_to_connector(obj);
		2296
		2297	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
		2298	if (connector->property_ids[i] == out_resp->prop_id)
		2299	break;
		2300	}
		2301
		2302	if (i == DRM_CONNECTOR_MAX_PROPERTY) {
		2303	goto out;
		2304	}
		2305
		2306	obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
		2307	if (!obj) {
		2308	goto out;
		2309	}
		2310	property = obj_to_property(obj);
		2311
		2312	if (property->flags & DRM_MODE_PROP_IMMUTABLE)
		2313	goto out;
		2314
		2315	if (property->flags & DRM_MODE_PROP_RANGE) {
		2316	if (out_resp->value < property->values[0])
		2317	goto out;
		2318
		2319	if (out_resp->value > property->values[1])
		2320	goto out;
		2321	} else {
		2322	int found = 0;
		2323	for (i = 0; i < property->num_values; i++) {
		2324	if (property->values[i] == out_resp->value) {
		2325	found = 1;
		2326	break;
		2327	}
		2328	}
		2329	if (!found) {
		2330	goto out;
		2331	}
		2332	}
		2333
		2334	/* Do DPMS ourselves */
		2335	if (property == connector->dev->mode_config.dpms_property) {
		2336	if (connector->funcs->dpms)
		2337	(*connector->funcs->dpms)(connector, (int) out_resp->value);
		2338	ret = 0;
		2339	} else if (connector->funcs->set_property)
		2340	ret = connector->funcs->set_property(connector, property, out_resp->value);
		2341
		2342	/* store the property value if succesful */
		2343	if (!ret)
		2344	drm_connector_property_set_value(connector, property, out_resp->value);
		2345	out:
1179	serge	2346	mutex_unlock(&dev->mode_config.mutex);
1123	serge	2347	return ret;
		2348	}
		2349	#endif
		2350
		2351	int drm_mode_connector_attach_encoder(struct drm_connector *connector,
		2352	struct drm_encoder *encoder)
		2353	{
		2354	int i;
		2355
		2356	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		2357	if (connector->encoder_ids[i] == 0) {
		2358	connector->encoder_ids[i] = encoder->base.id;
		2359	return 0;
		2360	}
		2361	}
		2362	return -ENOMEM;
		2363	}
		2364	EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
		2365
		2366	void drm_mode_connector_detach_encoder(struct drm_connector *connector,
		2367	struct drm_encoder *encoder)
		2368	{
		2369	int i;
		2370	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		2371	if (connector->encoder_ids[i] == encoder->base.id) {
		2372	connector->encoder_ids[i] = 0;
		2373	if (connector->encoder == encoder)
		2374	connector->encoder = NULL;
		2375	break;
		2376	}
		2377	}
		2378	}
		2379	EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
		2380
		2381	bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
		2382	int gamma_size)
		2383	{
		2384	crtc->gamma_size = gamma_size;
		2385
		2386	crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
		2387	if (!crtc->gamma_store) {
		2388	crtc->gamma_size = 0;
		2389	return false;
		2390	}
		2391
		2392	return true;
		2393	}
		2394	EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
		2395
		2396	#if 0
		2397	int drm_mode_gamma_set_ioctl(struct drm_device *dev,
		2398	void data, struct drm_file file_priv)
		2399	{
		2400	struct drm_mode_crtc_lut *crtc_lut = data;
		2401	struct drm_mode_object *obj;
		2402	struct drm_crtc *crtc;
		2403	void r_base, g_base, *b_base;
		2404	int size;
		2405	int ret = 0;
		2406
1179	serge	2407	mutex_lock(&dev->mode_config.mutex);
1123	serge	2408	obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
		2409	if (!obj) {
		2410	ret = -EINVAL;
		2411	goto out;
		2412	}
		2413	crtc = obj_to_crtc(obj);
		2414
		2415	/* memcpy into gamma store */
		2416	if (crtc_lut->gamma_size != crtc->gamma_size) {
		2417	ret = -EINVAL;
		2418	goto out;
		2419	}
		2420
		2421	size = crtc_lut->gamma_size * (sizeof(uint16_t));
		2422	r_base = crtc->gamma_store;
		2423	if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
		2424	ret = -EFAULT;
		2425	goto out;
		2426	}
		2427
		2428	g_base = r_base + size;
		2429	if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
		2430	ret = -EFAULT;
		2431	goto out;
		2432	}
		2433
		2434	b_base = g_base + size;
		2435	if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
		2436	ret = -EFAULT;
		2437	goto out;
		2438	}
		2439
		2440	crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size);
		2441
		2442	out:
1179	serge	2443	mutex_unlock(&dev->mode_config.mutex);
1123	serge	2444	return ret;
		2445
		2446	}
		2447
		2448	int drm_mode_gamma_get_ioctl(struct drm_device *dev,
		2449	void data, struct drm_file file_priv)
		2450	{
		2451	struct drm_mode_crtc_lut *crtc_lut = data;
		2452	struct drm_mode_object *obj;
		2453	struct drm_crtc *crtc;
		2454	void r_base, g_base, *b_base;
		2455	int size;
		2456	int ret = 0;
		2457
1179	serge	2458	mutex_lock(&dev->mode_config.mutex);
1123	serge	2459	obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
		2460	if (!obj) {
		2461	ret = -EINVAL;
		2462	goto out;
		2463	}
		2464	crtc = obj_to_crtc(obj);
		2465
		2466	/* memcpy into gamma store */
		2467	if (crtc_lut->gamma_size != crtc->gamma_size) {
		2468	ret = -EINVAL;
		2469	goto out;
		2470	}
		2471
		2472	size = crtc_lut->gamma_size * (sizeof(uint16_t));
		2473	r_base = crtc->gamma_store;
		2474	if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
		2475	ret = -EFAULT;
		2476	goto out;
		2477	}
		2478
		2479	g_base = r_base + size;
		2480	if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
		2481	ret = -EFAULT;
		2482	goto out;
		2483	}
		2484
		2485	b_base = g_base + size;
		2486	if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
		2487	ret = -EFAULT;
		2488	goto out;
		2489	}
		2490	out:
1179	serge	2491	mutex_unlock(&dev->mode_config.mutex);
1123	serge	2492	return ret;
		2493	}
		2494
		2495	#endif
1179	serge	2496

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(root)/drivers/video/drm/drm_crtc.c – Rev 1221