1/*
2 * Copyright 2021 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 */
22#define nvkm_uvfn(p) container_of((p), struct nvkm_uvfn, object)
23#include "priv.h"
24
25#include <core/object.h>
26
27struct nvkm_uvfn {
28	struct nvkm_object object;
29	struct nvkm_vfn *vfn;
30};
31
32static int
33nvkm_uvfn_map(struct nvkm_object *object, void *argv, u32 argc,
34	      enum nvkm_object_map *type, u64 *addr, u64 *size)
35{
36	struct nvkm_vfn *vfn = nvkm_uvfn(object)->vfn;
37	struct nvkm_device *device = vfn->subdev.device;
38
39	*addr = device->func->resource_addr(device, 0) + vfn->addr.user;
40	*size = vfn->func->user.size;
41	*type = NVKM_OBJECT_MAP_IO;
42	return 0;
43}
44
45static const struct nvkm_object_func
46nvkm_uvfn = {
47	.map = nvkm_uvfn_map,
48};
49
50int
51nvkm_uvfn_new(struct nvkm_device *device, const struct nvkm_oclass *oclass,
52	      void *argv, u32 argc, struct nvkm_object **pobject)
53{
54	struct nvkm_uvfn *uvfn;
55
56	if (argc != 0)
57		return -ENOSYS;
58
59	if (!(uvfn = kzalloc(sizeof(*uvfn), GFP_KERNEL)))
60		return -ENOMEM;
61
62	nvkm_object_ctor(&nvkm_uvfn, oclass, &uvfn->object);
63	uvfn->vfn = device->vfn;
64
65	*pobject = &uvfn->object;
66	return 0;
67}
68