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/*
* Copyright 2021 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.
*/
#define nvkm_uchan(p) container_of((p), struct nvkm_uchan, object)
#include "cgrp.h"
#include "chan.h"
#include <core/oproxy.h>
#include <nvif/if0020.h>
#include "gk104.h"
struct nvkm_uchan {
struct nvkm_object object;
struct nvkm_chan *chan;
};
static int
nvkm_uchan_uevent(struct nvkm_object *object, void *argv, u32 argc, struct nvkm_uevent *uevent)
{
struct nvkm_chan *chan = nvkm_uchan(object)->chan;
union nvif_chan_event_args *args = argv;
if (!uevent)
return 0;
if (argc != sizeof(args->v0) || args->v0.version != 0)
return -ENOSYS;
switch (args->v0.type) {
case NVIF_CHAN_EVENT_V0_NON_STALL_INTR:
case NVIF_CHAN_EVENT_V0_KILLED:
return chan->object.func->uevent(&chan->object, argv, argc, uevent);
default:
break;
}
return -ENOSYS;
}
struct nvkm_uobj {
struct nvkm_oproxy oproxy;
struct nvkm_chan *chan;
};
static const struct nvkm_oproxy_func
nvkm_uchan_object = {
};
static int
nvkm_uchan_object_new(const struct nvkm_oclass *oclass, void *argv, u32 argc,
struct nvkm_object **pobject)
{
struct nvkm_chan *chan = nvkm_uchan(oclass->parent)->chan;
struct nvkm_uobj *uobj;
struct nvkm_oclass _oclass;
if (!(uobj = kzalloc(sizeof(*uobj), GFP_KERNEL)))
return -ENOMEM;
nvkm_oproxy_ctor(&nvkm_uchan_object, oclass, &uobj->oproxy);
uobj->chan = chan;
*pobject = &uobj->oproxy.base;
_oclass = *oclass;
_oclass.parent = &chan->object;
return nvkm_fifo_chan_child_new(&_oclass, argv, argc, &uobj->oproxy.object);
}
static int
nvkm_uchan_sclass(struct nvkm_object *object, int index, struct nvkm_oclass *oclass)
{
struct nvkm_chan *chan = nvkm_uchan(object)->chan;
int ret;
ret = chan->object.func->sclass(&chan->object, index, oclass);
if (ret)
return ret;
oclass->ctor = nvkm_uchan_object_new;
return 0;
}
static int
nvkm_uchan_map(struct nvkm_object *object, void *argv, u32 argc,
enum nvkm_object_map *type, u64 *addr, u64 *size)
{
struct nvkm_chan *chan = nvkm_uchan(object)->chan;
return chan->object.func->map(&chan->object, argv, argc, type, addr, size);
}
static int
nvkm_uchan_fini(struct nvkm_object *object, bool suspend)
{
struct nvkm_chan *chan = nvkm_uchan(object)->chan;
int ret;
ret = chan->object.func->fini(&chan->object, suspend);
if (ret && suspend)
return ret;
return 0;
}
static int
nvkm_uchan_init(struct nvkm_object *object)
{
struct nvkm_chan *chan = nvkm_uchan(object)->chan;
return chan->object.func->init(&chan->object);
}
static void *
nvkm_uchan_dtor(struct nvkm_object *object)
{
struct nvkm_uchan *uchan = nvkm_uchan(object);
nvkm_chan_del(&uchan->chan);
return uchan;
}
static const struct nvkm_object_func
nvkm_uchan = {
.dtor = nvkm_uchan_dtor,
.init = nvkm_uchan_init,
.fini = nvkm_uchan_fini,
.map = nvkm_uchan_map,
.sclass = nvkm_uchan_sclass,
.uevent = nvkm_uchan_uevent,
};
int
nvkm_uchan_new(struct nvkm_fifo *fifo, struct nvkm_cgrp *cgrp, const struct nvkm_oclass *oclass,
void *argv, u32 argc, struct nvkm_object **pobject)
{
struct nvkm_object *object = NULL;
struct nvkm_uchan *uchan;
int ret;
if (!(uchan = kzalloc(sizeof(*uchan), GFP_KERNEL)))
return -ENOMEM;
nvkm_object_ctor(&nvkm_uchan, oclass, &uchan->object);
*pobject = &uchan->object;
if (!fifo->func->chan.func)
ret = gk104_fifo(fifo)->func->chan.ctor(gk104_fifo(fifo), oclass, argv, argc, &object);
else
ret = fifo->func->chan.oclass->ctor(fifo, oclass, argv, argc, &object);
if (!object)
return ret;
uchan->chan = container_of(object, typeof(*uchan->chan), object);
return ret;
}
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