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 #include "priv.h"
23
24 static void *
nvkm_vfn_dtor(struct nvkm_subdev * subdev)25 nvkm_vfn_dtor(struct nvkm_subdev *subdev)
26 {
27 return nvkm_vfn(subdev);
28 }
29
30 static const struct nvkm_subdev_func
31 nvkm_vfn = {
32 .dtor = nvkm_vfn_dtor,
33 };
34
35 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)36 nvkm_vfn_new_(const struct nvkm_vfn_func *func, struct nvkm_device *device,
37 enum nvkm_subdev_type type, int inst, u32 addr, struct nvkm_vfn **pvfn)
38 {
39 struct nvkm_vfn *vfn;
40 int ret;
41
42 if (!(vfn = *pvfn = kzalloc(sizeof(*vfn), GFP_KERNEL)))
43 return -ENOMEM;
44
45 nvkm_subdev_ctor(&nvkm_vfn, device, type, inst, &vfn->subdev);
46 vfn->func = func;
47 vfn->addr.priv = addr;
48 vfn->addr.user = vfn->addr.priv + func->user.addr;
49
50 if (vfn->func->intr) {
51 ret = nvkm_intr_add(vfn->func->intr, vfn->func->intrs,
52 &vfn->subdev, 8, &vfn->intr);
53 if (ret)
54 return ret;
55 }
56
57 vfn->user.ctor = nvkm_uvfn_new;
58 vfn->user.base = func->user.base;
59 return 0;
60 }
61