[deliverable/linux.git] / drivers / gpu / drm / nouveau / core / 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 <core/os.h>
#include <nvif/unpack.h>
#include <nvif/event.h>

#include "priv.h"
#include "outp.h"
#include "conn.h"

int
nouveau_disp_vblank_ctor(void *data, u32 size, struct nvkm_notify *notify)
{
	struct nouveau_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
nouveau_disp_vblank(struct nouveau_disp *disp, int head)
{
	struct nvif_notify_head_rep_v0 rep = {};
	nvkm_event_send(&disp->vblank, 1, head, &rep, sizeof(rep));
}

static int
nouveau_disp_hpd_ctor(void *data, u32 size, struct nvkm_notify *notify)
{
	struct nouveau_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
nouveau_disp_hpd_func = {
	.ctor = nouveau_disp_hpd_ctor
};

int
_nouveau_disp_fini(struct nouveau_object *object, bool suspend)
{
	struct nouveau_disp *disp = (void *)object;
	struct nvkm_output *outp;
	int ret;

	list_for_each_entry(outp, &disp->outp, head) {
		ret = nv_ofuncs(outp)->fini(nv_object(outp), suspend);
		if (ret && suspend)
			goto fail_outp;
	}

	return nouveau_engine_fini(&disp->base, suspend);

fail_outp:
	list_for_each_entry_continue_reverse(outp, &disp->outp, head) {
		nv_ofuncs(outp)->init(nv_object(outp));
	}

	return ret;
}

int
_nouveau_disp_init(struct nouveau_object *object)
{
	struct nouveau_disp *disp = (void *)object;
	struct nvkm_output *outp;
	int ret;

	ret = nouveau_engine_init(&disp->base);
	if (ret)
		return ret;

	list_for_each_entry(outp, &disp->outp, head) {
		ret = nv_ofuncs(outp)->init(nv_object(outp));
		if (ret)
			goto fail_outp;
	}

	return ret;

fail_outp:
	list_for_each_entry_continue_reverse(outp, &disp->outp, head) {
		nv_ofuncs(outp)->fini(nv_object(outp), false);
	}

	return ret;
}

void
_nouveau_disp_dtor(struct nouveau_object *object)
{
	struct nouveau_disp *disp = (void *)object;
	struct nvkm_output *outp, *outt;

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

	if (disp->outp.next) {
		list_for_each_entry_safe(outp, outt, &disp->outp, head) {
			nouveau_object_ref(NULL, (struct nouveau_object **)&outp);
		}
	}

	nouveau_engine_destroy(&disp->base);
}

int
nouveau_disp_create_(struct nouveau_object *parent,
		     struct nouveau_object *engine,
		     struct nouveau_oclass *oclass, int heads,
		     const char *intname, const char *extname,
		     int length, void **pobject)
{
	struct nouveau_disp_impl *impl = (void *)oclass;
	struct nouveau_bios *bios = nouveau_bios(parent);
	struct nouveau_disp *disp;
	struct nouveau_oclass **sclass;
	struct nouveau_object *object;
	struct dcb_output dcbE;
	u8  hpd = 0, ver, hdr;
	u32 data;
	int ret, i;

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

	INIT_LIST_HEAD(&disp->outp);

	/* create output objects for each display path in the vbios */
	i = -1;
	while ((data = dcb_outp_parse(bios, ++i, &ver, &hdr, &dcbE))) {
		if (dcbE.type == DCB_OUTPUT_UNUSED)
			continue;
		if (dcbE.type == DCB_OUTPUT_EOL)
			break;
		data = dcbE.location << 4 | dcbE.type;

		oclass = nvkm_output_oclass;
		sclass = impl->outp;
		while (sclass && sclass[0]) {
			if (sclass[0]->handle == data) {
				oclass = sclass[0];
				break;
			}
			sclass++;
		}

		nouveau_object_ctor(*pobject, *pobject, oclass,
				    &dcbE, i, &object);
		hpd = max(hpd, (u8)(dcbE.connector + 1));
	}

	ret = nvkm_event_init(&nouveau_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	*/
	24
79ca2770 BS	25	#include <core/os.h>
	26	#include <nvif/unpack.h>
	27	#include <nvif/event.h>
	28
377b1f16	29	#include "priv.h"
7a014a87 BS	30	#include "outp.h"
	31	#include "conn.h"
	32
79ca2770 BS	33	int
	34	nouveau_disp_vblank_ctor(void data, u32 size, struct nvkm_notify notify)
	35	{
	36	struct nouveau_disp *disp =
	37	container_of(notify->event, typeof(*disp), vblank);
	38	union {
	39	struct nvif_notify_head_req_v0 v0;
	40	} *req = data;
	41	int ret;
	42
	43	if (nvif_unpack(req->v0, 0, 0, false)) {
	44	notify->size = sizeof(struct nvif_notify_head_rep_v0);
	45	if (ret = -ENXIO, req->v0.head <= disp->vblank.index_nr) {
	46	notify->types = 1;
	47	notify->index = req->v0.head;
	48	return 0;
	49	}
	50	}
	51
	52	return ret;
	53	}
	54
	55	void
	56	nouveau_disp_vblank(struct nouveau_disp *disp, int head)
	57	{
	58	struct nvif_notify_head_rep_v0 rep = {};
	59	nvkm_event_send(&disp->vblank, 1, head, &rep, sizeof(rep));
	60	}
	61
7a014a87	62	static int
79ca2770	63	nouveau_disp_hpd_ctor(void data, u32 size, struct nvkm_notify notify)
7a014a87	64	{
79ca2770 BS	65	struct nouveau_disp *disp =
	66	container_of(notify->event, typeof(*disp), hpd);
	67	union {
	68	struct nvif_notify_conn_req_v0 v0;
	69	} *req = data;
7a014a87	70	struct nvkm_output *outp;
79ca2770 BS	71	int ret;
	72
	73	if (nvif_unpack(req->v0, 0, 0, false)) {
	74	notify->size = sizeof(struct nvif_notify_conn_rep_v0);
	75	list_for_each_entry(outp, &disp->outp, head) {
	76	if (ret = -ENXIO, outp->conn->index == req->v0.conn) {
	77	if (ret = -ENODEV, outp->conn->hpd.event) {
	78	notify->types = req->v0.mask;
	79	notify->index = req->v0.conn;
	80	ret = 0;
	81	}
	82	break;
	83	}
7a014a87 BS	84	}
7a014a87 BS	85	}
79ca2770 BS	86
79ca2770 BS	87	return ret;
7a014a87	88	}
377b1f16	89
79ca2770 BS	90	static const struct nvkm_event_func
	91	nouveau_disp_hpd_func = {
	92	.ctor = nouveau_disp_hpd_ctor
	93	};
	94
377b1f16 BS	95	int
	96	_nouveau_disp_fini(struct nouveau_object *object, bool suspend)
	97	{
	98	struct nouveau_disp disp = (void )object;
7a014a87 BS	99	struct nvkm_output *outp;
	100	int ret;
	101
	102	list_for_each_entry(outp, &disp->outp, head) {
	103	ret = nv_ofuncs(outp)->fini(nv_object(outp), suspend);
	104	if (ret && suspend)
	105	goto fail_outp;
	106	}
	107
377b1f16	108	return nouveau_engine_fini(&disp->base, suspend);
7a014a87 BS	109
	110	fail_outp:
	111	list_for_each_entry_continue_reverse(outp, &disp->outp, head) {
	112	nv_ofuncs(outp)->init(nv_object(outp));
	113	}
	114
	115	return ret;
377b1f16 BS	116	}
	117
	118	int
	119	_nouveau_disp_init(struct nouveau_object *object)
	120	{
7a014a87 BS	121	struct nouveau_disp disp = (void )object;
	122	struct nvkm_output *outp;
	123	int ret;
	124
	125	ret = nouveau_engine_init(&disp->base);
	126	if (ret)
	127	return ret;
	128
	129	list_for_each_entry(outp, &disp->outp, head) {
	130	ret = nv_ofuncs(outp)->init(nv_object(outp));
	131	if (ret)
	132	goto fail_outp;
	133	}
	134
	135	return ret;
	136
	137	fail_outp:
	138	list_for_each_entry_continue_reverse(outp, &disp->outp, head) {
	139	nv_ofuncs(outp)->fini(nv_object(outp), false);
	140	}
	141
	142	return ret;
377b1f16	143	}
1d7c71a3 BS	144
	145	void
	146	_nouveau_disp_dtor(struct nouveau_object *object)
	147	{
	148	struct nouveau_disp disp = (void )object;
7a014a87 BS	149	struct nvkm_output outp, outt;
7a014a87 BS	150
79ca2770 BS	151	nvkm_event_fini(&disp->vblank);
79ca2770 BS	152	nvkm_event_fini(&disp->hpd);
7a014a87	153
242a42ea ML	154	if (disp->outp.next) {
	155	list_for_each_entry_safe(outp, outt, &disp->outp, head) {
	156	nouveau_object_ref(NULL, (struct nouveau_object **)&outp);
	157	}
7a014a87 BS	158	}
7a014a87 BS	159
1d7c71a3 BS	160	nouveau_engine_destroy(&disp->base);
	161	}
	162
	163	int
	164	nouveau_disp_create_(struct nouveau_object *parent,
	165	struct nouveau_object *engine,
	166	struct nouveau_oclass *oclass, int heads,
	167	const char intname, const char extname,
	168	int length, void **pobject)
	169	{
7a014a87 BS	170	struct nouveau_disp_impl impl = (void )oclass;
7a014a87 BS	171	struct nouveau_bios *bios = nouveau_bios(parent);
1d7c71a3	172	struct nouveau_disp *disp;
7a014a87 BS	173	struct nouveau_oclass **sclass;
	174	struct nouveau_object *object;
	175	struct dcb_output dcbE;
	176	u8 hpd = 0, ver, hdr;
	177	u32 data;
	178	int ret, i;
1d7c71a3 BS	179
	180	ret = nouveau_engine_create_(parent, engine, oclass, true,
	181	intname, extname, length, pobject);
	182	disp = *pobject;
	183	if (ret)
	184	return ret;
	185
7a014a87 BS	186	INIT_LIST_HEAD(&disp->outp);
	187
	188	/* create output objects for each display path in the vbios */
	189	i = -1;
	190	while ((data = dcb_outp_parse(bios, ++i, &ver, &hdr, &dcbE))) {
	191	if (dcbE.type == DCB_OUTPUT_UNUSED)
	192	continue;
	193	if (dcbE.type == DCB_OUTPUT_EOL)
	194	break;
	195	data = dcbE.location << 4 \| dcbE.type;
	196
	197	oclass = nvkm_output_oclass;
	198	sclass = impl->outp;
	199	while (sclass && sclass[0]) {
	200	if (sclass[0]->handle == data) {
	201	oclass = sclass[0];
	202	break;
	203	}
	204	sclass++;
	205	}
	206
	207	nouveau_object_ctor(pobject, pobject, oclass,
	208	&dcbE, i, &object);
	209	hpd = max(hpd, (u8)(dcbE.connector + 1));
	210	}
	211
79ca2770	212	ret = nvkm_event_init(&nouveau_disp_hpd_func, 3, hpd, &disp->hpd);
7a014a87 BS	213	if (ret)
	214	return ret;
	215
79ca2770	216	ret = nvkm_event_init(impl->vblank, 1, heads, &disp->vblank);
377b1f16 BS	217	if (ret)
	218	return ret;
	219
	220	return 0;
1d7c71a3	221	}