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/*
* Copyright 2012 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 "channv50.h"
#include <core/client.h>
#include <core/ramht.h>
#include <nvif/cl506f.h>
#include <nvif/unpack.h>
static int
nv50_fifo_gpfifo_new(struct nvkm_fifo *base, const struct nvkm_oclass *oclass,
void *data, u32 size, struct nvkm_object **pobject)
{
struct nvkm_object *parent = oclass->parent;
union {
struct nv50_channel_gpfifo_v0 v0;
} *args = data;
struct nv50_fifo *fifo = nv50_fifo(base);
struct nv50_fifo_chan *chan;
u64 ioffset, ilength;
int ret = -ENOSYS;
nvif_ioctl(parent, "create channel gpfifo size %d\n", size);
if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
nvif_ioctl(parent, "create channel gpfifo vers %d vmm %llx "
"pushbuf %llx ioffset %016llx "
"ilength %08x\n",
args->v0.version, args->v0.vmm, args->v0.pushbuf,
args->v0.ioffset, args->v0.ilength);
if (!args->v0.pushbuf)
return -EINVAL;
} else
return ret;
if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
return -ENOMEM;
*pobject = &chan->base.object;
ret = nv50_fifo_chan_ctor(fifo, args->v0.vmm, args->v0.pushbuf,
oclass, chan);
if (ret)
return ret;
args->v0.chid = chan->base.chid;
ioffset = args->v0.ioffset;
ilength = args->v0.ilength;
chan->base.func->ramfc->write(&chan->base, ioffset, ilength, BIT(0), false);
return 0;
}
const struct nvkm_fifo_chan_oclass
nv50_fifo_gpfifo_oclass = {
.ctor = nv50_fifo_gpfifo_new,
};
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