/*
|
* Copyright 2015 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 <bskeggs@redhat.com>
|
*/
|
#include "chan.h"
|
|
#include <core/notify.h>
|
#include <engine/fifo.h>
|
|
#include <nvif/event.h>
|
#include <nvif/unpack.h>
|
|
bool
|
nvkm_sw_chan_mthd(struct nvkm_sw_chan *chan, int subc, u32 mthd, u32 data)
|
{
|
switch (mthd) {
|
case 0x0000:
|
return true;
|
case 0x0500:
|
nvkm_event_send(&chan->event, 1, 0, NULL, 0);
|
return true;
|
default:
|
if (chan->func->mthd)
|
return chan->func->mthd(chan, subc, mthd, data);
|
break;
|
}
|
return false;
|
}
|
|
static int
|
nvkm_sw_chan_event_ctor(struct nvkm_object *object, void *data, u32 size,
|
struct nvkm_notify *notify)
|
{
|
union {
|
struct nvif_notify_uevent_req none;
|
} *req = data;
|
int ret = -ENOSYS;
|
|
if (!(ret = nvif_unvers(ret, &data, &size, req->none))) {
|
notify->size = sizeof(struct nvif_notify_uevent_rep);
|
notify->types = 1;
|
notify->index = 0;
|
}
|
|
return ret;
|
}
|
|
static const struct nvkm_event_func
|
nvkm_sw_chan_event = {
|
.ctor = nvkm_sw_chan_event_ctor,
|
};
|
|
static void *
|
nvkm_sw_chan_dtor(struct nvkm_object *object)
|
{
|
struct nvkm_sw_chan *chan = nvkm_sw_chan(object);
|
struct nvkm_sw *sw = chan->sw;
|
unsigned long flags;
|
void *data = chan;
|
|
if (chan->func->dtor)
|
data = chan->func->dtor(chan);
|
nvkm_event_fini(&chan->event);
|
|
spin_lock_irqsave(&sw->engine.lock, flags);
|
list_del(&chan->head);
|
spin_unlock_irqrestore(&sw->engine.lock, flags);
|
return data;
|
}
|
|
static const struct nvkm_object_func
|
nvkm_sw_chan = {
|
.dtor = nvkm_sw_chan_dtor,
|
};
|
|
int
|
nvkm_sw_chan_ctor(const struct nvkm_sw_chan_func *func, struct nvkm_sw *sw,
|
struct nvkm_fifo_chan *fifo, const struct nvkm_oclass *oclass,
|
struct nvkm_sw_chan *chan)
|
{
|
unsigned long flags;
|
|
nvkm_object_ctor(&nvkm_sw_chan, oclass, &chan->object);
|
chan->func = func;
|
chan->sw = sw;
|
chan->fifo = fifo;
|
spin_lock_irqsave(&sw->engine.lock, flags);
|
list_add(&chan->head, &sw->chan);
|
spin_unlock_irqrestore(&sw->engine.lock, flags);
|
|
return nvkm_event_init(&nvkm_sw_chan_event, 1, 1, &chan->event);
|
}
|
