linux-zen-server/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/base.c

61 lines
1.9 KiB
C

/*
* 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.
*/
#include "priv.h"
static void *
nvkm_vfn_dtor(struct nvkm_subdev *subdev)
{
return nvkm_vfn(subdev);
}
static const struct nvkm_subdev_func
nvkm_vfn = {
.dtor = nvkm_vfn_dtor,
};
int
nvkm_vfn_new_(const struct nvkm_vfn_func *func, struct nvkm_device *device,
enum nvkm_subdev_type type, int inst, u32 addr, struct nvkm_vfn **pvfn)
{
struct nvkm_vfn *vfn;
int ret;
if (!(vfn = *pvfn = kzalloc(sizeof(*vfn), GFP_KERNEL)))
return -ENOMEM;
nvkm_subdev_ctor(&nvkm_vfn, device, type, inst, &vfn->subdev);
vfn->func = func;
vfn->addr.priv = addr;
vfn->addr.user = vfn->addr.priv + func->user.addr;
if (vfn->func->intr) {
ret = nvkm_intr_add(vfn->func->intr, vfn->func->intrs,
&vfn->subdev, 8, &vfn->intr);
if (ret)
return ret;
}
vfn->user.ctor = nvkm_uvfn_new;
vfn->user.base = func->user.base;
return 0;
}