ubuntu-linux-kernel/drivers/gpu/drm/nouveau/nvkm/engine/sw/nvsw.c

86 lines
2.5 KiB
C

/*
* 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 "nvsw.h"
#include "chan.h"
#include <nvif/if0004.h>
static int
nvkm_nvsw_mthd_(struct nvkm_object *object, u32 mthd, void *data, u32 size)
{
struct nvkm_nvsw *nvsw = nvkm_nvsw(object);
if (nvsw->func->mthd)
return nvsw->func->mthd(nvsw, mthd, data, size);
return -ENODEV;
}
static int
nvkm_nvsw_ntfy_(struct nvkm_object *object, u32 mthd,
struct nvkm_event **pevent)
{
struct nvkm_nvsw *nvsw = nvkm_nvsw(object);
switch (mthd) {
case NV04_NVSW_NTFY_UEVENT:
*pevent = &nvsw->chan->event;
return 0;
default:
break;
}
return -EINVAL;
}
static const struct nvkm_object_func
nvkm_nvsw_ = {
.mthd = nvkm_nvsw_mthd_,
.ntfy = nvkm_nvsw_ntfy_,
};
int
nvkm_nvsw_new_(const struct nvkm_nvsw_func *func, struct nvkm_sw_chan *chan,
const struct nvkm_oclass *oclass, void *data, u32 size,
struct nvkm_object **pobject)
{
struct nvkm_nvsw *nvsw;
if (!(nvsw = kzalloc(sizeof(*nvsw), GFP_KERNEL)))
return -ENOMEM;
*pobject = &nvsw->object;
nvkm_object_ctor(&nvkm_nvsw_, oclass, &nvsw->object);
nvsw->func = func;
nvsw->chan = chan;
return 0;
}
static const struct nvkm_nvsw_func
nvkm_nvsw = {
};
int
nvkm_nvsw_new(struct nvkm_sw_chan *chan, const struct nvkm_oclass *oclass,
void *data, u32 size, struct nvkm_object **pobject)
{
return nvkm_nvsw_new_(&nvkm_nvsw, chan, oclass, data, size, pobject);
}