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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
*/
#define nv04_sw_chan(p) container_of((p), struct nv04_sw_chan, base)
#include "priv.h"
#include "chan.h"
#include "nvsw.h"
#include <nvif/class.h>
#include <nvif/ioctl.h>
#include <nvif/unpack.h>
struct nv04_sw_chan {
struct nvkm_sw_chan base;
atomic_t ref;
};
/*******************************************************************************
* software object classes
******************************************************************************/
static int
nv04_nvsw_mthd_get_ref(struct nvkm_nvsw *nvsw, void *data, u32 size)
{
struct nv04_sw_chan *chan = nv04_sw_chan(nvsw->chan);
union {
struct nv04_nvsw_get_ref_v0 v0;
} *args = data;
int ret;
if (nvif_unpack(args->v0, 0, 0, false)) {
args->v0.ref = atomic_read(&chan->ref);
}
return ret;
}
static int
nv04_nvsw_mthd(struct nvkm_nvsw *nvsw, u32 mthd, void *data, u32 size)
{
switch (mthd) {
case NV04_NVSW_GET_REF:
return nv04_nvsw_mthd_get_ref(nvsw, data, size);
default:
break;
}
return -EINVAL;
}
static const struct nvkm_nvsw_func
nv04_nvsw = {
.mthd = nv04_nvsw_mthd,
};
static int
nv04_nvsw_new(struct nvkm_sw_chan *chan, const struct nvkm_oclass *oclass,
void *data, u32 size, struct nvkm_object **pobject)
{
return nvkm_nvsw_new_(&nv04_nvsw, chan, oclass, data, size, pobject);
}
/*******************************************************************************
* software context
******************************************************************************/
static bool
nv04_sw_chan_mthd(struct nvkm_sw_chan *base, int subc, u32 mthd, u32 data)
{
struct nv04_sw_chan *chan = nv04_sw_chan(base);
switch (mthd) {
case 0x0150:
atomic_set(&chan->ref, data);
return true;
default:
break;
}
return false;
}
static const struct nvkm_sw_chan_func
nv04_sw_chan = {
.mthd = nv04_sw_chan_mthd,
};
static int
nv04_sw_chan_new(struct nvkm_sw *sw, struct nvkm_fifo_chan *fifo,
const struct nvkm_oclass *oclass, struct nvkm_object **pobject)
{
struct nv04_sw_chan *chan;
if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
return -ENOMEM;
atomic_set(&chan->ref, 0);
*pobject = &chan->base.object;
return nvkm_sw_chan_ctor(&nv04_sw_chan, sw, fifo, oclass, &chan->base);
}
/*******************************************************************************
* software engine/subdev functions
******************************************************************************/
static const struct nvkm_sw_func
nv04_sw = {
.chan_new = nv04_sw_chan_new,
.sclass = {
{ nv04_nvsw_new, { -1, -1, NVIF_IOCTL_NEW_V0_SW_NV04 } },
{}
}
};
int
nv04_sw_new(struct nvkm_device *device, int index, struct nvkm_sw **psw)
{
return nvkm_sw_new_(&nv04_sw, device, index, psw);
}
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