blob: 5daa777552767caf53ab04af65d6568efe0d1d22 [file] [log] [blame]
/*
* 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 "dp.h"
#include "head.h"
#include "ior.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 id)
{
struct nvkm_disp *disp = container_of(event, typeof(*disp), vblank);
struct nvkm_head *head = nvkm_head_find(disp, id);
if (head)
head->func->vblank_put(head);
}
static void
nvkm_disp_vblank_init(struct nvkm_event *event, int type, int id)
{
struct nvkm_disp *disp = container_of(event, typeof(*disp), vblank);
struct nvkm_head *head = nvkm_head_find(disp, id);
if (head)
head->func->vblank_get(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 = -ENOSYS;
if (!(ret = nvif_unpack(ret, &data, &size, 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_outp *outp;
int ret = -ENOSYS;
if (!(ret = nvif_unpack(ret, &data, &size, 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);
spin_lock(&disp->client.lock);
if (disp->client.object == oproxy)
disp->client.object = NULL;
spin_unlock(&disp->client.lock);
}
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;
spin_lock(&disp->client.lock);
if (disp->client.object) {
spin_unlock(&disp->client.lock);
return -EBUSY;
}
disp->client.object = oproxy;
spin_unlock(&disp->client.lock);
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_conn *conn;
struct nvkm_outp *outp;
if (disp->func->fini)
disp->func->fini(disp);
list_for_each_entry(outp, &disp->outp, head) {
nvkm_outp_fini(outp);
}
list_for_each_entry(conn, &disp->conn, head) {
nvkm_conn_fini(conn);
}
return 0;
}
static int
nvkm_disp_init(struct nvkm_engine *engine)
{
struct nvkm_disp *disp = nvkm_disp(engine);
struct nvkm_conn *conn;
struct nvkm_outp *outp;
struct nvkm_ior *ior;
list_for_each_entry(conn, &disp->conn, head) {
nvkm_conn_init(conn);
}
list_for_each_entry(outp, &disp->outp, head) {
nvkm_outp_init(outp);
}
if (disp->func->init) {
int ret = disp->func->init(disp);
if (ret)
return ret;
}
/* Set 'normal' (ie. when it's attached to a head) state for
* each output resource to 'fully enabled'.
*/
list_for_each_entry(ior, &disp->ior, head) {
ior->func->power(ior, true, true, true, true, true);
}
return 0;
}
static int
nvkm_disp_oneinit(struct nvkm_engine *engine)
{
struct nvkm_disp *disp = nvkm_disp(engine);
struct nvkm_subdev *subdev = &disp->engine.subdev;
struct nvkm_bios *bios = subdev->device->bios;
struct nvkm_outp *outp, *outt, *pair;
struct nvkm_conn *conn;
struct nvkm_head *head;
struct nvkm_ior *ior;
struct nvbios_connE connE;
struct dcb_output dcbE;
u8 hpd = 0, ver, hdr;
u32 data;
int ret, i;
/* Create output path objects for each VBIOS display path. */
i = -1;
while ((data = dcb_outp_parse(bios, ++i, &ver, &hdr, &dcbE))) {
if (ver < 0x40) /* No support for chipsets prior to NV50. */
break;
if (dcbE.type == DCB_OUTPUT_UNUSED)
continue;
if (dcbE.type == DCB_OUTPUT_EOL)
break;
outp = NULL;
switch (dcbE.type) {
case DCB_OUTPUT_ANALOG:
case DCB_OUTPUT_TV:
case DCB_OUTPUT_TMDS:
case DCB_OUTPUT_LVDS:
ret = nvkm_outp_new(disp, i, &dcbE, &outp);
break;
case DCB_OUTPUT_DP:
ret = nvkm_dp_new(disp, i, &dcbE, &outp);
break;
case DCB_OUTPUT_WFD:
/* No support for WFD yet. */
ret = -ENODEV;
continue;
default:
nvkm_warn(subdev, "dcb %d type %d unknown\n",
i, dcbE.type);
continue;
}
if (ret) {
if (outp) {
if (ret != -ENODEV)
OUTP_ERR(outp, "ctor failed: %d", ret);
else
OUTP_DBG(outp, "not supported");
nvkm_outp_del(&outp);
continue;
}
nvkm_error(subdev, "failed to create outp %d\n", i);
continue;
}
list_add_tail(&outp->head, &disp->outp);
hpd = max(hpd, (u8)(dcbE.connector + 1));
}
/* Create connector objects based on available output paths. */
list_for_each_entry_safe(outp, outt, &disp->outp, head) {
/* VBIOS 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_conn_new(disp, i, &connE, &outp->conn);
if (ret) {
nvkm_error(&disp->engine.subdev,
"failed to create outp %d conn: %d\n",
outp->index, ret);
nvkm_conn_del(&outp->conn);
list_del(&outp->head);
nvkm_outp_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;
if (disp->func->oneinit) {
ret = disp->func->oneinit(disp);
if (ret)
return ret;
}
/* Enforce identity-mapped SOR assignment for panels, which have
* certain bits (ie. backlight controls) wired to a specific SOR.
*/
list_for_each_entry(outp, &disp->outp, head) {
if (outp->conn->info.type == DCB_CONNECTOR_LVDS ||
outp->conn->info.type == DCB_CONNECTOR_eDP) {
ior = nvkm_ior_find(disp, SOR, ffs(outp->info.or) - 1);
if (!WARN_ON(!ior))
ior->identity = true;
outp->identity = true;
}
}
i = 0;
list_for_each_entry(head, &disp->head, head)
i = max(i, head->id + 1);
return nvkm_event_init(&nvkm_disp_vblank_func, 1, i, &disp->vblank);
}
static void *
nvkm_disp_dtor(struct nvkm_engine *engine)
{
struct nvkm_disp *disp = nvkm_disp(engine);
struct nvkm_conn *conn;
struct nvkm_outp *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->conn)) {
conn = list_first_entry(&disp->conn, typeof(*conn), head);
list_del(&conn->head);
nvkm_conn_del(&conn);
}
while (!list_empty(&disp->outp)) {
outp = list_first_entry(&disp->outp, typeof(*outp), head);
list_del(&outp->head);
nvkm_outp_del(&outp);
}
while (!list_empty(&disp->ior)) {
struct nvkm_ior *ior =
list_first_entry(&disp->ior, typeof(*ior), head);
nvkm_ior_del(&ior);
}
while (!list_empty(&disp->head)) {
struct nvkm_head *head =
list_first_entry(&disp->head, typeof(*head), head);
nvkm_head_del(&head);
}
return data;
}
static const struct nvkm_engine_func
nvkm_disp = {
.dtor = nvkm_disp_dtor,
.oneinit = nvkm_disp_oneinit,
.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,
enum nvkm_subdev_type type, int inst, struct nvkm_disp *disp)
{
disp->func = func;
INIT_LIST_HEAD(&disp->head);
INIT_LIST_HEAD(&disp->ior);
INIT_LIST_HEAD(&disp->outp);
INIT_LIST_HEAD(&disp->conn);
spin_lock_init(&disp->client.lock);
return nvkm_engine_ctor(&nvkm_disp, device, type, inst, true, &disp->engine);
}
int
nvkm_disp_new_(const struct nvkm_disp_func *func, struct nvkm_device *device,
enum nvkm_subdev_type type, int inst, struct nvkm_disp **pdisp)
{
if (!(*pdisp = kzalloc(sizeof(**pdisp), GFP_KERNEL)))
return -ENOMEM;
return nvkm_disp_ctor(func, device, type, inst, *pdisp);
}