[deliverable/linux.git] / drivers / gpu / drm / nouveau / nvkm / engine / disp / base.c

/*
 * Copyright 2013 Red Hat Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: Ben Skeggs
 */
#include "priv.h"
#include "conn.h"
#include "outp.h"

#include <core/client.h>
#include <core/notify.h>
#include <core/oproxy.h>
#include <subdev/bios.h>
#include <subdev/bios/dcb.h>

#include <nvif/class.h>
#include <nvif/cl0046.h>
#include <nvif/event.h>
#include <nvif/unpack.h>

static void
nvkm_disp_vblank_fini(struct nvkm_event *event, int type, int head)
{
	struct nvkm_disp *disp = container_of(event, typeof(*disp), vblank);
	disp->func->head.vblank_fini(disp, head);
}

static void
nvkm_disp_vblank_init(struct nvkm_event *event, int type, int head)
{
	struct nvkm_disp *disp = container_of(event, typeof(*disp), vblank);
	disp->func->head.vblank_init(disp, head);
}

static int
nvkm_disp_vblank_ctor(struct nvkm_object *object, void *data, u32 size,
		      struct nvkm_notify *notify)
{
	struct nvkm_disp *disp =
		container_of(notify->event, typeof(*disp), vblank);
	union {
		struct nvif_notify_head_req_v0 v0;
	} *req = data;
	int ret;

	if (nvif_unpack(req->v0, 0, 0, false)) {
		notify->size = sizeof(struct nvif_notify_head_rep_v0);
		if (ret = -ENXIO, req->v0.head <= disp->vblank.index_nr) {
			notify->types = 1;
			notify->index = req->v0.head;
			return 0;
		}
	}

	return ret;
}

static const struct nvkm_event_func
nvkm_disp_vblank_func = {
	.ctor = nvkm_disp_vblank_ctor,
	.init = nvkm_disp_vblank_init,
	.fini = nvkm_disp_vblank_fini,
};

void
nvkm_disp_vblank(struct nvkm_disp *disp, int head)
{
	struct nvif_notify_head_rep_v0 rep = {};
	nvkm_event_send(&disp->vblank, 1, head, &rep, sizeof(rep));
}

static int
nvkm_disp_hpd_ctor(struct nvkm_object *object, void *data, u32 size,
		   struct nvkm_notify *notify)
{
	struct nvkm_disp *disp =
		container_of(notify->event, typeof(*disp), hpd);
	union {
		struct nvif_notify_conn_req_v0 v0;
	} *req = data;
	struct nvkm_output *outp;
	int ret;

	if (nvif_unpack(req->v0, 0, 0, false)) {
		notify->size = sizeof(struct nvif_notify_conn_rep_v0);
		list_for_each_entry(outp, &disp->outp, head) {
			if (ret = -ENXIO, outp->conn->index == req->v0.conn) {
				if (ret = -ENODEV, outp->conn->hpd.event) {
					notify->types = req->v0.mask;
					notify->index = req->v0.conn;
					ret = 0;
				}
				break;
			}
		}
	}

	return ret;
}

static const struct nvkm_event_func
nvkm_disp_hpd_func = {
	.ctor = nvkm_disp_hpd_ctor
};

int
nvkm_disp_ntfy(struct nvkm_object *object, u32 type, struct nvkm_event **event)
{
	struct nvkm_disp *disp = nvkm_disp(object->engine);
	switch (type) {
	case NV04_DISP_NTFY_VBLANK:
		*event = &disp->vblank;
		return 0;
	case NV04_DISP_NTFY_CONN:
		*event = &disp->hpd;
		return 0;
	default:
		break;
	}
	return -EINVAL;
}

static void
nvkm_disp_class_del(struct nvkm_oproxy *oproxy)
{
	struct nvkm_disp *disp = nvkm_disp(oproxy->base.engine);
	mutex_lock(&disp->engine.subdev.mutex);
	if (disp->client == oproxy)
		disp->client = NULL;
	mutex_unlock(&disp->engine.subdev.mutex);
}

static const struct nvkm_oproxy_func
nvkm_disp_class = {
	.dtor[1] = nvkm_disp_class_del,
};

static int
nvkm_disp_class_new(struct nvkm_device *device,
		    const struct nvkm_oclass *oclass, void *data, u32 size,
		    struct nvkm_object **pobject)
{
	const struct nvkm_disp_oclass *sclass = oclass->engn;
	struct nvkm_disp *disp = nvkm_disp(oclass->engine);
	struct nvkm_oproxy *oproxy;
	int ret;

	ret = nvkm_oproxy_new_(&nvkm_disp_class, oclass, &oproxy);
	if (ret)
		return ret;
	*pobject = &oproxy->base;

	mutex_lock(&disp->engine.subdev.mutex);
	if (disp->client) {
		mutex_unlock(&disp->engine.subdev.mutex);
		return -EBUSY;
	}
	disp->client = oproxy;
	mutex_unlock(&disp->engine.subdev.mutex);

	return sclass->ctor(disp, oclass, data, size, &oproxy->object);
}

static const struct nvkm_device_oclass
nvkm_disp_sclass = {
	.ctor = nvkm_disp_class_new,
};

static int
nvkm_disp_class_get(struct nvkm_oclass *oclass, int index,
		    const struct nvkm_device_oclass **class)
{
	struct nvkm_disp *disp = nvkm_disp(oclass->engine);
	if (index == 0) {
		const struct nvkm_disp_oclass *root = disp->func->root(disp);
		oclass->base = root->base;
		oclass->engn = root;
		*class = &nvkm_disp_sclass;
		return 0;
	}
	return 1;
}

static void
nvkm_disp_intr(struct nvkm_engine *engine)
{
	struct nvkm_disp *disp = nvkm_disp(engine);
	disp->func->intr(disp);
}

static int
nvkm_disp_fini(struct nvkm_engine *engine, bool suspend)
{
	struct nvkm_disp *disp = nvkm_disp(engine);
	struct nvkm_connector *conn;
	struct nvkm_output *outp;

	list_for_each_entry(outp, &disp->outp, head) {
		nvkm_output_fini(outp);
	}

	list_for_each_entry(conn, &disp->conn, head) {
		nvkm_connector_fini(conn);
	}

	return 0;
}

static int
nvkm_disp_init(struct nvkm_engine *engine)
{
	struct nvkm_disp *disp = nvkm_disp(engine);
	struct nvkm_connector *conn;
	struct nvkm_output *outp;

	list_for_each_entry(conn, &disp->conn, head) {
		nvkm_connector_init(conn);
	}

	list_for_each_entry(outp, &disp->outp, head) {
		nvkm_output_init(outp);
	}

	return 0;
}

static void *
nvkm_disp_dtor(struct nvkm_engine *engine)
{
	struct nvkm_disp *disp = nvkm_disp(engine);
	struct nvkm_connector *conn;
	struct nvkm_output *outp;
	void *data = disp;

	if (disp->func->dtor)
		data = disp->func->dtor(disp);

	nvkm_event_fini(&disp->vblank);
	nvkm_event_fini(&disp->hpd);

	while (!list_empty(&disp->outp)) {
		outp = list_first_entry(&disp->outp, typeof(*outp), head);
		list_del(&outp->head);
		nvkm_output_del(&outp);
	}

	while (!list_empty(&disp->conn)) {
		conn = list_first_entry(&disp->conn, typeof(*conn), head);
		list_del(&conn->head);
		nvkm_connector_del(&conn);
	}

	return data;
}

static const struct nvkm_engine_func
nvkm_disp = {
	.dtor = nvkm_disp_dtor,
	.init = nvkm_disp_init,
	.fini = nvkm_disp_fini,
	.intr = nvkm_disp_intr,
	.base.sclass = nvkm_disp_class_get,
};

int
nvkm_disp_ctor(const struct nvkm_disp_func *func, struct nvkm_device *device,
	       int index, int heads, struct nvkm_disp *disp)
{
	struct nvkm_bios *bios = device->bios;
	struct nvkm_output *outp, *outt, *pair;
	struct nvkm_connector *conn;
	struct nvbios_connE connE;
	struct dcb_output dcbE;
	u8  hpd = 0, ver, hdr;
	u32 data;
	int ret, i;

	INIT_LIST_HEAD(&disp->outp);
	INIT_LIST_HEAD(&disp->conn);
	disp->func = func;
	disp->head.nr = heads;

	ret = nvkm_engine_ctor(&nvkm_disp, device, index, 0,
			       true, &disp->engine);
	if (ret)
		return ret;

	/* create output objects for each display path in the vbios */
	i = -1;
	while ((data = dcb_outp_parse(bios, ++i, &ver, &hdr, &dcbE))) {
		const struct nvkm_disp_func_outp *outps;
		int (*ctor)(struct nvkm_disp *, int, struct dcb_output *,
			    struct nvkm_output **);

		if (dcbE.type == DCB_OUTPUT_UNUSED)
			continue;
		if (dcbE.type == DCB_OUTPUT_EOL)
			break;
		outp = NULL;

		switch (dcbE.location) {
		case 0: outps = &disp->func->outp.internal; break;
		case 1: outps = &disp->func->outp.external; break;
		default:
			nvkm_warn(&disp->engine.subdev,
				  "dcb %d locn %d unknown\n", i, dcbE.location);
			continue;
		}

		switch (dcbE.type) {
		case DCB_OUTPUT_ANALOG: ctor = outps->crt ; break;
		case DCB_OUTPUT_TV    : ctor = outps->tv  ; break;
		case DCB_OUTPUT_TMDS  : ctor = outps->tmds; break;
		case DCB_OUTPUT_LVDS  : ctor = outps->lvds; break;
		case DCB_OUTPUT_DP    : ctor = outps->dp  ; break;
		default:
			nvkm_warn(&disp->engine.subdev,
				  "dcb %d type %d unknown\n", i, dcbE.type);
			continue;
		}

		if (ctor)
			ret = ctor(disp, i, &dcbE, &outp);
		else
			ret = -ENODEV;

		if (ret) {
			if (ret == -ENODEV) {
				nvkm_debug(&disp->engine.subdev,
					   "dcb %d %d/%d not supported\n",
					   i, dcbE.location, dcbE.type);
				continue;
			}
			nvkm_error(&disp->engine.subdev,
				   "failed to create output %d\n", i);
			nvkm_output_del(&outp);
			continue;
		}

		list_add_tail(&outp->head, &disp->outp);
		hpd = max(hpd, (u8)(dcbE.connector + 1));
	}

	/* create connector objects based on the outputs we support */
	list_for_each_entry_safe(outp, outt, &disp->outp, head) {
		/* bios data *should* give us the most useful information */
		data = nvbios_connEp(bios, outp->info.connector, &ver, &hdr,
				     &connE);

		/* no bios connector data... */
		if (!data) {
			/* heuristic: anything with the same ccb index is
			 * considered to be on the same connector, any
			 * output path without an associated ccb entry will
			 * be put on its own connector
			 */
			int ccb_index = outp->info.i2c_index;
			if (ccb_index != 0xf) {
				list_for_each_entry(pair, &disp->outp, head) {
					if (pair->info.i2c_index == ccb_index) {
						outp->conn = pair->conn;
						break;
					}
				}
			}

			/* connector shared with another output path */
			if (outp->conn)
				continue;

			memset(&connE, 0x00, sizeof(connE));
			connE.type = DCB_CONNECTOR_NONE;
			i = -1;
		} else {
			i = outp->info.connector;
		}

		/* check that we haven't already created this connector */
		list_for_each_entry(conn, &disp->conn, head) {
			if (conn->index == outp->info.connector) {
				outp->conn = conn;
				break;
			}
		}

		if (outp->conn)
			continue;

		/* apparently we need to create a new one! */
		ret = nvkm_connector_new(disp, i, &connE, &outp->conn);
		if (ret) {
			nvkm_error(&disp->engine.subdev,
				   "failed to create output %d conn: %d\n",
				   outp->index, ret);
			nvkm_connector_del(&outp->conn);
			list_del(&outp->head);
			nvkm_output_del(&outp);
			continue;
		}

		list_add_tail(&outp->conn->head, &disp->conn);
	}

	ret = nvkm_event_init(&nvkm_disp_hpd_func, 3, hpd, &disp->hpd);
	if (ret)
		return ret;

	ret = nvkm_event_init(&nvkm_disp_vblank_func, 1, heads, &disp->vblank);
	if (ret)
		return ret;

	return 0;
}

int
nvkm_disp_new_(const struct nvkm_disp_func *func, struct nvkm_device *device,
	       int index, int heads, struct nvkm_disp **pdisp)
{
	if (!(*pdisp = kzalloc(sizeof(**pdisp), GFP_KERNEL)))
		return -ENOMEM;
	return nvkm_disp_ctor(func, device, index, heads, *pdisp);
}
Commit	Line	Data
1d7c71a3 BS	1	/*
	2	* Copyright 2013 Red Hat Inc.
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	17	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	18	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	19	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	20	* OTHER DEALINGS IN THE SOFTWARE.
	21	*
	22	* Authors: Ben Skeggs
	23	*/
878da15a BS	24	#include "priv.h"
	25	#include "conn.h"
	26	#include "outp.h"
	27
0ce41e3c	28	#include <core/client.h>
878da15a	29	#include <core/notify.h>
0ce41e3c	30	#include <core/oproxy.h>
878da15a BS	31	#include <subdev/bios.h>
878da15a BS	32	#include <subdev/bios/dcb.h>
1d7c71a3	33
80bc340b	34	#include <nvif/class.h>
7568b106	35	#include <nvif/cl0046.h>
79ca2770	36	#include <nvif/event.h>
878da15a	37	#include <nvif/unpack.h>
7a014a87	38
70aa8670 BS	39	static void
	40	nvkm_disp_vblank_fini(struct nvkm_event *event, int type, int head)
	41	{
	42	struct nvkm_disp disp = container_of(event, typeof(disp), vblank);
	43	disp->func->head.vblank_fini(disp, head);
	44	}
	45
	46	static void
	47	nvkm_disp_vblank_init(struct nvkm_event *event, int type, int head)
	48	{
	49	struct nvkm_disp disp = container_of(event, typeof(disp), vblank);
	50	disp->func->head.vblank_init(disp, head);
	51	}
	52
	53	static int
878da15a BS	54	nvkm_disp_vblank_ctor(struct nvkm_object object, void data, u32 size,
878da15a BS	55	struct nvkm_notify *notify)
79ca2770	56	{
878da15a	57	struct nvkm_disp *disp =
79ca2770 BS	58	container_of(notify->event, typeof(*disp), vblank);
	59	union {
	60	struct nvif_notify_head_req_v0 v0;
	61	} *req = data;
	62	int ret;
	63
	64	if (nvif_unpack(req->v0, 0, 0, false)) {
	65	notify->size = sizeof(struct nvif_notify_head_rep_v0);
	66	if (ret = -ENXIO, req->v0.head <= disp->vblank.index_nr) {
	67	notify->types = 1;
	68	notify->index = req->v0.head;
	69	return 0;
	70	}
	71	}
	72
	73	return ret;
	74	}
	75
70aa8670 BS	76	static const struct nvkm_event_func
	77	nvkm_disp_vblank_func = {
	78	.ctor = nvkm_disp_vblank_ctor,
	79	.init = nvkm_disp_vblank_init,
	80	.fini = nvkm_disp_vblank_fini,
	81	};
	82
79ca2770	83	void
878da15a	84	nvkm_disp_vblank(struct nvkm_disp *disp, int head)
79ca2770 BS	85	{
	86	struct nvif_notify_head_rep_v0 rep = {};
	87	nvkm_event_send(&disp->vblank, 1, head, &rep, sizeof(rep));
	88	}
	89
7a014a87	90	static int
878da15a BS	91	nvkm_disp_hpd_ctor(struct nvkm_object object, void data, u32 size,
878da15a BS	92	struct nvkm_notify *notify)
7a014a87	93	{
878da15a	94	struct nvkm_disp *disp =
79ca2770 BS	95	container_of(notify->event, typeof(*disp), hpd);
	96	union {
	97	struct nvif_notify_conn_req_v0 v0;
	98	} *req = data;
7a014a87	99	struct nvkm_output *outp;
79ca2770 BS	100	int ret;
	101
	102	if (nvif_unpack(req->v0, 0, 0, false)) {
	103	notify->size = sizeof(struct nvif_notify_conn_rep_v0);
	104	list_for_each_entry(outp, &disp->outp, head) {
	105	if (ret = -ENXIO, outp->conn->index == req->v0.conn) {
	106	if (ret = -ENODEV, outp->conn->hpd.event) {
	107	notify->types = req->v0.mask;
	108	notify->index = req->v0.conn;
	109	ret = 0;
	110	}
	111	break;
	112	}
7a014a87 BS	113	}
7a014a87 BS	114	}
79ca2770 BS	115
79ca2770 BS	116	return ret;
7a014a87	117	}
377b1f16	118
79ca2770	119	static const struct nvkm_event_func
878da15a BS	120	nvkm_disp_hpd_func = {
878da15a BS	121	.ctor = nvkm_disp_hpd_ctor
79ca2770 BS	122	};
79ca2770 BS	123
80bc340b	124	int
878da15a	125	nvkm_disp_ntfy(struct nvkm_object object, u32 type, struct nvkm_event *event)
80bc340b	126	{
70aa8670	127	struct nvkm_disp *disp = nvkm_disp(object->engine);
80bc340b BS	128	switch (type) {
	129	case NV04_DISP_NTFY_VBLANK:
	130	*event = &disp->vblank;
	131	return 0;
	132	case NV04_DISP_NTFY_CONN:
	133	*event = &disp->hpd;
	134	return 0;
	135	default:
	136	break;
	137	}
	138	return -EINVAL;
	139	}
	140
0ce41e3c BS	141	static void
	142	nvkm_disp_class_del(struct nvkm_oproxy *oproxy)
	143	{
	144	struct nvkm_disp *disp = nvkm_disp(oproxy->base.engine);
	145	mutex_lock(&disp->engine.subdev.mutex);
	146	if (disp->client == oproxy)
	147	disp->client = NULL;
	148	mutex_unlock(&disp->engine.subdev.mutex);
	149	}
	150
	151	static const struct nvkm_oproxy_func
	152	nvkm_disp_class = {
	153	.dtor[1] = nvkm_disp_class_del,
	154	};
	155
	156	static int
	157	nvkm_disp_class_new(struct nvkm_device *device,
	158	const struct nvkm_oclass oclass, void data, u32 size,
	159	struct nvkm_object **pobject)
	160	{
	161	const struct nvkm_disp_oclass *sclass = oclass->engn;
	162	struct nvkm_disp *disp = nvkm_disp(oclass->engine);
	163	struct nvkm_oproxy *oproxy;
	164	int ret;
	165
	166	ret = nvkm_oproxy_new_(&nvkm_disp_class, oclass, &oproxy);
	167	if (ret)
	168	return ret;
	169	*pobject = &oproxy->base;
	170
	171	mutex_lock(&disp->engine.subdev.mutex);
	172	if (disp->client) {
	173	mutex_unlock(&disp->engine.subdev.mutex);
	174	return -EBUSY;
	175	}
	176	disp->client = oproxy;
	177	mutex_unlock(&disp->engine.subdev.mutex);
	178
	179	return sclass->ctor(disp, oclass, data, size, &oproxy->object);
	180	}
	181
	182	static const struct nvkm_device_oclass
	183	nvkm_disp_sclass = {
	184	.ctor = nvkm_disp_class_new,
	185	};
	186
	187	static int
	188	nvkm_disp_class_get(struct nvkm_oclass *oclass, int index,
	189	const struct nvkm_device_oclass **class)
	190	{
	191	struct nvkm_disp *disp = nvkm_disp(oclass->engine);
	192	if (index == 0) {
70aa8670 BS	193	const struct nvkm_disp_oclass *root = disp->func->root(disp);
	194	oclass->base = root->base;
	195	oclass->engn = root;
0ce41e3c BS	196	*class = &nvkm_disp_sclass;
	197	return 0;
	198	}
	199	return 1;
	200	}
	201
70aa8670 BS	202	static void
	203	nvkm_disp_intr(struct nvkm_engine *engine)
	204	{
	205	struct nvkm_disp *disp = nvkm_disp(engine);
	206	disp->func->intr(disp);
	207	}
	208
	209	static int
	210	nvkm_disp_fini(struct nvkm_engine *engine, bool suspend)
377b1f16	211	{
70aa8670	212	struct nvkm_disp *disp = nvkm_disp(engine);
f2c906fc	213	struct nvkm_connector *conn;
7a014a87	214	struct nvkm_output *outp;
7a014a87 BS	215
7a014a87 BS	216	list_for_each_entry(outp, &disp->outp, head) {
f2c906fc	217	nvkm_output_fini(outp);
7a014a87 BS	218	}
7a014a87 BS	219
f2c906fc BS	220	list_for_each_entry(conn, &disp->conn, head) {
f2c906fc BS	221	nvkm_connector_fini(conn);
7a014a87 BS	222	}
7a014a87 BS	223
70aa8670	224	return 0;
377b1f16 BS	225	}
377b1f16 BS	226
70aa8670 BS	227	static int
70aa8670 BS	228	nvkm_disp_init(struct nvkm_engine *engine)
377b1f16	229	{
70aa8670	230	struct nvkm_disp *disp = nvkm_disp(engine);
f2c906fc	231	struct nvkm_connector *conn;
7a014a87	232	struct nvkm_output *outp;
7a014a87	233
f2c906fc BS	234	list_for_each_entry(conn, &disp->conn, head) {
f2c906fc BS	235	nvkm_connector_init(conn);
7a014a87 BS	236	}
7a014a87 BS	237
f2c906fc BS	238	list_for_each_entry(outp, &disp->outp, head) {
f2c906fc BS	239	nvkm_output_init(outp);
7a014a87 BS	240	}
7a014a87 BS	241
70aa8670	242	return 0;
377b1f16	243	}
1d7c71a3	244
70aa8670 BS	245	static void *
70aa8670 BS	246	nvkm_disp_dtor(struct nvkm_engine *engine)
1d7c71a3	247	{
70aa8670	248	struct nvkm_disp *disp = nvkm_disp(engine);
f2c906fc BS	249	struct nvkm_connector *conn;
f2c906fc BS	250	struct nvkm_output *outp;
70aa8670 BS	251	void *data = disp;
	252
	253	if (disp->func->dtor)
	254	data = disp->func->dtor(disp);
7a014a87	255
79ca2770 BS	256	nvkm_event_fini(&disp->vblank);
79ca2770 BS	257	nvkm_event_fini(&disp->hpd);
7a014a87	258
f2c906fc BS	259	while (!list_empty(&disp->outp)) {
	260	outp = list_first_entry(&disp->outp, typeof(*outp), head);
	261	list_del(&outp->head);
	262	nvkm_output_del(&outp);
	263	}
	264
	265	while (!list_empty(&disp->conn)) {
	266	conn = list_first_entry(&disp->conn, typeof(*conn), head);
	267	list_del(&conn->head);
	268	nvkm_connector_del(&conn);
7a014a87 BS	269	}
7a014a87 BS	270
70aa8670	271	return data;
1d7c71a3 BS	272	}
1d7c71a3 BS	273
0ce41e3c BS	274	static const struct nvkm_engine_func
0ce41e3c BS	275	nvkm_disp = {
70aa8670 BS	276	.dtor = nvkm_disp_dtor,
	277	.init = nvkm_disp_init,
	278	.fini = nvkm_disp_fini,
	279	.intr = nvkm_disp_intr,
0ce41e3c BS	280	.base.sclass = nvkm_disp_class_get,
	281	};
	282
1d7c71a3	283	int
70aa8670 BS	284	nvkm_disp_ctor(const struct nvkm_disp_func func, struct nvkm_device device,
70aa8670 BS	285	int index, int heads, struct nvkm_disp *disp)
1d7c71a3	286	{
f2c906fc	287	struct nvkm_bios *bios = device->bios;
f2c906fc	288	struct nvkm_output outp, outt, *pair;
70aa8670	289	struct nvkm_connector *conn;
f2c906fc	290	struct nvbios_connE connE;
7a014a87 BS	291	struct dcb_output dcbE;
	292	u8 hpd = 0, ver, hdr;
	293	u32 data;
	294	int ret, i;
1d7c71a3	295
7a014a87	296	INIT_LIST_HEAD(&disp->outp);
f2c906fc	297	INIT_LIST_HEAD(&disp->conn);
70aa8670 BS	298	disp->func = func;
	299	disp->head.nr = heads;
	300
	301	ret = nvkm_engine_ctor(&nvkm_disp, device, index, 0,
	302	true, &disp->engine);
	303	if (ret)
	304	return ret;
7a014a87 BS	305
	306	/* create output objects for each display path in the vbios */
	307	i = -1;
	308	while ((data = dcb_outp_parse(bios, ++i, &ver, &hdr, &dcbE))) {
f2c906fc BS	309	const struct nvkm_disp_func_outp *outps;
	310	int (ctor)(struct nvkm_disp , int, struct dcb_output *,
	311	struct nvkm_output **);
	312
7a014a87 BS	313	if (dcbE.type == DCB_OUTPUT_UNUSED)
	314	continue;
	315	if (dcbE.type == DCB_OUTPUT_EOL)
	316	break;
f2c906fc BS	317	outp = NULL;
	318
	319	switch (dcbE.location) {
70aa8670 BS	320	case 0: outps = &disp->func->outp.internal; break;
70aa8670 BS	321	case 1: outps = &disp->func->outp.external; break;
f2c906fc BS	322	default:
	323	nvkm_warn(&disp->engine.subdev,
	324	"dcb %d locn %d unknown\n", i, dcbE.location);
	325	continue;
	326	}
7a014a87	327
f2c906fc BS	328	switch (dcbE.type) {
	329	case DCB_OUTPUT_ANALOG: ctor = outps->crt ; break;
	330	case DCB_OUTPUT_TV : ctor = outps->tv ; break;
	331	case DCB_OUTPUT_TMDS : ctor = outps->tmds; break;
	332	case DCB_OUTPUT_LVDS : ctor = outps->lvds; break;
	333	case DCB_OUTPUT_DP : ctor = outps->dp ; break;
	334	default:
	335	nvkm_warn(&disp->engine.subdev,
	336	"dcb %d type %d unknown\n", i, dcbE.type);
	337	continue;
	338	}
	339
	340	if (ctor)
	341	ret = ctor(disp, i, &dcbE, &outp);
	342	else
	343	ret = -ENODEV;
	344
	345	if (ret) {
	346	if (ret == -ENODEV) {
	347	nvkm_debug(&disp->engine.subdev,
	348	"dcb %d %d/%d not supported\n",
	349	i, dcbE.location, dcbE.type);
	350	continue;
7a014a87	351	}
f2c906fc BS	352	nvkm_error(&disp->engine.subdev,
	353	"failed to create output %d\n", i);
	354	nvkm_output_del(&outp);
	355	continue;
7a014a87 BS	356	}
7a014a87 BS	357
f2c906fc	358	list_add_tail(&outp->head, &disp->outp);
7a014a87 BS	359	hpd = max(hpd, (u8)(dcbE.connector + 1));
	360	}
	361
f2c906fc BS	362	/* create connector objects based on the outputs we support */
	363	list_for_each_entry_safe(outp, outt, &disp->outp, head) {
	364	/* bios data should give us the most useful information */
	365	data = nvbios_connEp(bios, outp->info.connector, &ver, &hdr,
	366	&connE);
	367
	368	/* no bios connector data... */
	369	if (!data) {
	370	/* heuristic: anything with the same ccb index is
	371	* considered to be on the same connector, any
	372	* output path without an associated ccb entry will
	373	* be put on its own connector
	374	*/
	375	int ccb_index = outp->info.i2c_index;
	376	if (ccb_index != 0xf) {
	377	list_for_each_entry(pair, &disp->outp, head) {
	378	if (pair->info.i2c_index == ccb_index) {
	379	outp->conn = pair->conn;
	380	break;
	381	}
	382	}
	383	}
	384
	385	/* connector shared with another output path */
	386	if (outp->conn)
	387	continue;
	388
	389	memset(&connE, 0x00, sizeof(connE));
	390	connE.type = DCB_CONNECTOR_NONE;
	391	i = -1;
	392	} else {
	393	i = outp->info.connector;
	394	}
	395
	396	/* check that we haven't already created this connector */
	397	list_for_each_entry(conn, &disp->conn, head) {
	398	if (conn->index == outp->info.connector) {
	399	outp->conn = conn;
	400	break;
	401	}
	402	}
	403
	404	if (outp->conn)
	405	continue;
	406
	407	/* apparently we need to create a new one! */
	408	ret = nvkm_connector_new(disp, i, &connE, &outp->conn);
	409	if (ret) {
	410	nvkm_error(&disp->engine.subdev,
	411	"failed to create output %d conn: %d\n",
	412	outp->index, ret);
	413	nvkm_connector_del(&outp->conn);
	414	list_del(&outp->head);
	415	nvkm_output_del(&outp);
	416	continue;
	417	}
	418
	419	list_add_tail(&outp->conn->head, &disp->conn);
	420	}
	421
878da15a	422	ret = nvkm_event_init(&nvkm_disp_hpd_func, 3, hpd, &disp->hpd);
7a014a87 BS	423	if (ret)
	424	return ret;
	425
70aa8670	426	ret = nvkm_event_init(&nvkm_disp_vblank_func, 1, heads, &disp->vblank);
377b1f16 BS	427	if (ret)
	428	return ret;
	429
	430	return 0;
1d7c71a3	431	}
70aa8670 BS	432
	433	int
	434	nvkm_disp_new_(const struct nvkm_disp_func func, struct nvkm_device device,
	435	int index, int heads, struct nvkm_disp **pdisp)
	436	{
	437	if (!(pdisp = kzalloc(sizeof(*pdisp), GFP_KERNEL)))
	438	return -ENOMEM;
	439	return nvkm_disp_ctor(func, device, index, heads, *pdisp);
	440	}