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 *
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
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