1 /* $NetBSD: nouveau_nvkm_subdev_bus_base.c,v 1.3 2021/12/18 23:45:38 riastradh Exp $ */
2
3 /*
4 * Copyright 2015 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Ben Skeggs <bskeggs@redhat.com>
25 */
26 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_bus_base.c,v 1.3 2021/12/18 23:45:38 riastradh Exp $");
28
29 #include "priv.h"
30
31 static void
nvkm_bus_intr(struct nvkm_subdev * subdev)32 nvkm_bus_intr(struct nvkm_subdev *subdev)
33 {
34 struct nvkm_bus *bus = nvkm_bus(subdev);
35 bus->func->intr(bus);
36 }
37
38 static int
nvkm_bus_init(struct nvkm_subdev * subdev)39 nvkm_bus_init(struct nvkm_subdev *subdev)
40 {
41 struct nvkm_bus *bus = nvkm_bus(subdev);
42 bus->func->init(bus);
43 return 0;
44 }
45
46 static void *
nvkm_bus_dtor(struct nvkm_subdev * subdev)47 nvkm_bus_dtor(struct nvkm_subdev *subdev)
48 {
49 return nvkm_bus(subdev);
50 }
51
52 static const struct nvkm_subdev_func
53 nvkm_bus = {
54 .dtor = nvkm_bus_dtor,
55 .init = nvkm_bus_init,
56 .intr = nvkm_bus_intr,
57 };
58
59 int
nvkm_bus_new_(const struct nvkm_bus_func * func,struct nvkm_device * device,int index,struct nvkm_bus ** pbus)60 nvkm_bus_new_(const struct nvkm_bus_func *func, struct nvkm_device *device,
61 int index, struct nvkm_bus **pbus)
62 {
63 struct nvkm_bus *bus;
64 if (!(bus = *pbus = kzalloc(sizeof(*bus), GFP_KERNEL)))
65 return -ENOMEM;
66 nvkm_subdev_ctor(&nvkm_bus, device, index, &bus->subdev);
67 bus->func = func;
68 return 0;
69 }
70