[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/notify.h>
#include <subdev/bios.h>
#include <subdev/bios/dcb.h>

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

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;
}

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 = (void *)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;
}

int
_nvkm_disp_fini(struct nvkm_object *object, bool suspend)
{
	struct nvkm_disp *disp = (void *)object;
	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 nvkm_engine_fini_old(&disp->engine, suspend);
}

int
_nvkm_disp_init(struct nvkm_object *object)
{
	struct nvkm_disp *disp = (void *)object;
	struct nvkm_connector *conn;
	struct nvkm_output *outp;
	int ret;

	ret = nvkm_engine_init_old(&disp->engine);
	if (ret)
		return ret;

	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 ret;
}

void
_nvkm_disp_dtor(struct nvkm_object *object)
{
	struct nvkm_disp *disp = (void *)object;
	struct nvkm_connector *conn;
	struct nvkm_output *outp;

	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);
	}

	nvkm_engine_destroy(&disp->engine);
}

int
nvkm_disp_create_(struct nvkm_object *parent, struct nvkm_object *engine,
		  struct nvkm_oclass *oclass, int heads, const char *intname,
		  const char *extname, int length, void **pobject)
{
	struct nvkm_disp_impl *impl = (void *)oclass;
	struct nvkm_device *device = (void *)parent;
	struct nvkm_bios *bios = device->bios;
	struct nvkm_disp *disp;
	struct nvkm_connector *conn;
	struct nvkm_output *outp, *outt, *pair;
	struct nvbios_connE connE;
	struct dcb_output dcbE;
	u8  hpd = 0, ver, hdr;
	u32 data;
	int ret, i;

	ret = nvkm_engine_create_(parent, engine, oclass, true, intname,
				  extname, length, pobject);
	disp = *pobject;
	if (ret)
		return ret;

	INIT_LIST_HEAD(&disp->outp);
	INIT_LIST_HEAD(&disp->conn);

	/* 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 = &impl->outp.internal; break;
		case 1: outps = &impl->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(impl->vblank, 1, heads, &disp->vblank);
	if (ret)
		return ret;

	return 0;
}
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
	28	#include <core/notify.h>
	29	#include <subdev/bios.h>
	30	#include <subdev/bios/dcb.h>
1d7c71a3	31
80bc340b	32	#include <nvif/class.h>
79ca2770	33	#include <nvif/event.h>
878da15a	34	#include <nvif/unpack.h>
7a014a87	35
79ca2770	36	int
878da15a BS	37	nvkm_disp_vblank_ctor(struct nvkm_object object, void data, u32 size,
878da15a BS	38	struct nvkm_notify *notify)
79ca2770	39	{
878da15a	40	struct nvkm_disp *disp =
79ca2770 BS	41	container_of(notify->event, typeof(*disp), vblank);
	42	union {
	43	struct nvif_notify_head_req_v0 v0;
	44	} *req = data;
	45	int ret;
	46
	47	if (nvif_unpack(req->v0, 0, 0, false)) {
	48	notify->size = sizeof(struct nvif_notify_head_rep_v0);
	49	if (ret = -ENXIO, req->v0.head <= disp->vblank.index_nr) {
	50	notify->types = 1;
	51	notify->index = req->v0.head;
	52	return 0;
	53	}
	54	}
	55
	56	return ret;
	57	}
	58
	59	void
878da15a	60	nvkm_disp_vblank(struct nvkm_disp *disp, int head)
79ca2770 BS	61	{
	62	struct nvif_notify_head_rep_v0 rep = {};
	63	nvkm_event_send(&disp->vblank, 1, head, &rep, sizeof(rep));
	64	}
	65
7a014a87	66	static int
878da15a BS	67	nvkm_disp_hpd_ctor(struct nvkm_object object, void data, u32 size,
878da15a BS	68	struct nvkm_notify *notify)
7a014a87	69	{
878da15a	70	struct nvkm_disp *disp =
79ca2770 BS	71	container_of(notify->event, typeof(*disp), hpd);
	72	union {
	73	struct nvif_notify_conn_req_v0 v0;
	74	} *req = data;
7a014a87	75	struct nvkm_output *outp;
79ca2770 BS	76	int ret;
	77
	78	if (nvif_unpack(req->v0, 0, 0, false)) {
	79	notify->size = sizeof(struct nvif_notify_conn_rep_v0);
	80	list_for_each_entry(outp, &disp->outp, head) {
	81	if (ret = -ENXIO, outp->conn->index == req->v0.conn) {
	82	if (ret = -ENODEV, outp->conn->hpd.event) {
	83	notify->types = req->v0.mask;
	84	notify->index = req->v0.conn;
	85	ret = 0;
	86	}
	87	break;
	88	}
7a014a87 BS	89	}
7a014a87 BS	90	}
79ca2770 BS	91
79ca2770 BS	92	return ret;
7a014a87	93	}
377b1f16	94
79ca2770	95	static const struct nvkm_event_func
878da15a BS	96	nvkm_disp_hpd_func = {
878da15a BS	97	.ctor = nvkm_disp_hpd_ctor
79ca2770 BS	98	};
79ca2770 BS	99
80bc340b	100	int
878da15a	101	nvkm_disp_ntfy(struct nvkm_object object, u32 type, struct nvkm_event *event)
80bc340b	102	{
878da15a	103	struct nvkm_disp disp = (void )object->engine;
80bc340b BS	104	switch (type) {
	105	case NV04_DISP_NTFY_VBLANK:
	106	*event = &disp->vblank;
	107	return 0;
	108	case NV04_DISP_NTFY_CONN:
	109	*event = &disp->hpd;
	110	return 0;
	111	default:
	112	break;
	113	}
	114	return -EINVAL;
	115	}
	116
377b1f16	117	int
878da15a	118	_nvkm_disp_fini(struct nvkm_object *object, bool suspend)
377b1f16	119	{
878da15a	120	struct nvkm_disp disp = (void )object;
f2c906fc	121	struct nvkm_connector *conn;
7a014a87	122	struct nvkm_output *outp;
7a014a87 BS	123
7a014a87 BS	124	list_for_each_entry(outp, &disp->outp, head) {
f2c906fc	125	nvkm_output_fini(outp);
7a014a87 BS	126	}
7a014a87 BS	127
f2c906fc BS	128	list_for_each_entry(conn, &disp->conn, head) {
f2c906fc BS	129	nvkm_connector_fini(conn);
7a014a87 BS	130	}
7a014a87 BS	131
89c651e2	132	return nvkm_engine_fini_old(&disp->engine, suspend);
377b1f16 BS	133	}
	134
	135	int
878da15a	136	_nvkm_disp_init(struct nvkm_object *object)
377b1f16	137	{
878da15a	138	struct nvkm_disp disp = (void )object;
f2c906fc	139	struct nvkm_connector *conn;
7a014a87 BS	140	struct nvkm_output *outp;
	141	int ret;
	142
89c651e2	143	ret = nvkm_engine_init_old(&disp->engine);
7a014a87 BS	144	if (ret)
	145	return ret;
	146
f2c906fc BS	147	list_for_each_entry(conn, &disp->conn, head) {
f2c906fc BS	148	nvkm_connector_init(conn);
7a014a87 BS	149	}
7a014a87 BS	150
f2c906fc BS	151	list_for_each_entry(outp, &disp->outp, head) {
f2c906fc BS	152	nvkm_output_init(outp);
7a014a87 BS	153	}
	154
	155	return ret;
377b1f16	156	}
1d7c71a3 BS	157
1d7c71a3 BS	158	void
878da15a	159	_nvkm_disp_dtor(struct nvkm_object *object)
1d7c71a3	160	{
878da15a	161	struct nvkm_disp disp = (void )object;
f2c906fc BS	162	struct nvkm_connector *conn;
f2c906fc BS	163	struct nvkm_output *outp;
7a014a87	164
79ca2770 BS	165	nvkm_event_fini(&disp->vblank);
79ca2770 BS	166	nvkm_event_fini(&disp->hpd);
7a014a87	167
f2c906fc BS	168	while (!list_empty(&disp->outp)) {
	169	outp = list_first_entry(&disp->outp, typeof(*outp), head);
	170	list_del(&outp->head);
	171	nvkm_output_del(&outp);
	172	}
	173
	174	while (!list_empty(&disp->conn)) {
	175	conn = list_first_entry(&disp->conn, typeof(*conn), head);
	176	list_del(&conn->head);
	177	nvkm_connector_del(&conn);
7a014a87 BS	178	}
7a014a87 BS	179
fd166a18	180	nvkm_engine_destroy(&disp->engine);
1d7c71a3 BS	181	}
	182
	183	int
878da15a BS	184	nvkm_disp_create_(struct nvkm_object parent, struct nvkm_object engine,
	185	struct nvkm_oclass oclass, int heads, const char intname,
	186	const char extname, int length, void *pobject)
1d7c71a3	187	{
878da15a	188	struct nvkm_disp_impl impl = (void )oclass;
f2c906fc BS	189	struct nvkm_device device = (void )parent;
f2c906fc BS	190	struct nvkm_bios *bios = device->bios;
878da15a	191	struct nvkm_disp *disp;
f2c906fc BS	192	struct nvkm_connector *conn;
	193	struct nvkm_output outp, outt, *pair;
	194	struct nvbios_connE connE;
7a014a87 BS	195	struct dcb_output dcbE;
	196	u8 hpd = 0, ver, hdr;
	197	u32 data;
	198	int ret, i;
1d7c71a3	199
878da15a BS	200	ret = nvkm_engine_create_(parent, engine, oclass, true, intname,
878da15a BS	201	extname, length, pobject);
1d7c71a3 BS	202	disp = *pobject;
	203	if (ret)
	204	return ret;
	205
7a014a87	206	INIT_LIST_HEAD(&disp->outp);
f2c906fc	207	INIT_LIST_HEAD(&disp->conn);
7a014a87 BS	208
	209	/* create output objects for each display path in the vbios */
	210	i = -1;
	211	while ((data = dcb_outp_parse(bios, ++i, &ver, &hdr, &dcbE))) {
f2c906fc BS	212	const struct nvkm_disp_func_outp *outps;
	213	int (ctor)(struct nvkm_disp , int, struct dcb_output *,
	214	struct nvkm_output **);
	215
7a014a87 BS	216	if (dcbE.type == DCB_OUTPUT_UNUSED)
	217	continue;
	218	if (dcbE.type == DCB_OUTPUT_EOL)
	219	break;
f2c906fc BS	220	outp = NULL;
	221
	222	switch (dcbE.location) {
	223	case 0: outps = &impl->outp.internal; break;
	224	case 1: outps = &impl->outp.external; break;
	225	default:
	226	nvkm_warn(&disp->engine.subdev,
	227	"dcb %d locn %d unknown\n", i, dcbE.location);
	228	continue;
	229	}
7a014a87	230
f2c906fc BS	231	switch (dcbE.type) {
	232	case DCB_OUTPUT_ANALOG: ctor = outps->crt ; break;
	233	case DCB_OUTPUT_TV : ctor = outps->tv ; break;
	234	case DCB_OUTPUT_TMDS : ctor = outps->tmds; break;
	235	case DCB_OUTPUT_LVDS : ctor = outps->lvds; break;
	236	case DCB_OUTPUT_DP : ctor = outps->dp ; break;
	237	default:
	238	nvkm_warn(&disp->engine.subdev,
	239	"dcb %d type %d unknown\n", i, dcbE.type);
	240	continue;
	241	}
	242
	243	if (ctor)
	244	ret = ctor(disp, i, &dcbE, &outp);
	245	else
	246	ret = -ENODEV;
	247
	248	if (ret) {
	249	if (ret == -ENODEV) {
	250	nvkm_debug(&disp->engine.subdev,
	251	"dcb %d %d/%d not supported\n",
	252	i, dcbE.location, dcbE.type);
	253	continue;
7a014a87	254	}
f2c906fc BS	255	nvkm_error(&disp->engine.subdev,
	256	"failed to create output %d\n", i);
	257	nvkm_output_del(&outp);
	258	continue;
7a014a87 BS	259	}
7a014a87 BS	260
f2c906fc	261	list_add_tail(&outp->head, &disp->outp);
7a014a87 BS	262	hpd = max(hpd, (u8)(dcbE.connector + 1));
	263	}
	264
f2c906fc BS	265	/* create connector objects based on the outputs we support */
	266	list_for_each_entry_safe(outp, outt, &disp->outp, head) {
	267	/* bios data should give us the most useful information */
	268	data = nvbios_connEp(bios, outp->info.connector, &ver, &hdr,
	269	&connE);
	270
	271	/* no bios connector data... */
	272	if (!data) {
	273	/* heuristic: anything with the same ccb index is
	274	* considered to be on the same connector, any
	275	* output path without an associated ccb entry will
	276	* be put on its own connector
	277	*/
	278	int ccb_index = outp->info.i2c_index;
	279	if (ccb_index != 0xf) {
	280	list_for_each_entry(pair, &disp->outp, head) {
	281	if (pair->info.i2c_index == ccb_index) {
	282	outp->conn = pair->conn;
	283	break;
	284	}
	285	}
	286	}
	287
	288	/* connector shared with another output path */
	289	if (outp->conn)
	290	continue;
	291
	292	memset(&connE, 0x00, sizeof(connE));
	293	connE.type = DCB_CONNECTOR_NONE;
	294	i = -1;
	295	} else {
	296	i = outp->info.connector;
	297	}
	298
	299	/* check that we haven't already created this connector */
	300	list_for_each_entry(conn, &disp->conn, head) {
	301	if (conn->index == outp->info.connector) {
	302	outp->conn = conn;
	303	break;
	304	}
	305	}
	306
	307	if (outp->conn)
	308	continue;
	309
	310	/* apparently we need to create a new one! */
	311	ret = nvkm_connector_new(disp, i, &connE, &outp->conn);
	312	if (ret) {
	313	nvkm_error(&disp->engine.subdev,
	314	"failed to create output %d conn: %d\n",
	315	outp->index, ret);
	316	nvkm_connector_del(&outp->conn);
	317	list_del(&outp->head);
	318	nvkm_output_del(&outp);
	319	continue;
	320	}
	321
	322	list_add_tail(&outp->conn->head, &disp->conn);
	323	}
	324
878da15a	325	ret = nvkm_event_init(&nvkm_disp_hpd_func, 3, hpd, &disp->hpd);
7a014a87 BS	326	if (ret)
	327	return ret;
	328
79ca2770	329	ret = nvkm_event_init(impl->vblank, 1, heads, &disp->vblank);
377b1f16 BS	330	if (ret)
	331	return ret;
	332
	333	return 0;
1d7c71a3	334	}