1 /* $NetBSD: nouveau_nvkm_subdev_fuse_base.c,v 1.4 2021/12/19 11:34:45 riastradh Exp $ */
2
3 /*
4 * Copyright 2014 Martin Peres
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: Martin Peres
25 */
26 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_fuse_base.c,v 1.4 2021/12/19 11:34:45 riastradh Exp $");
28
29 #include "priv.h"
30
31 u32
nvkm_fuse_read(struct nvkm_fuse * fuse,u32 addr)32 nvkm_fuse_read(struct nvkm_fuse *fuse, u32 addr)
33 {
34 return fuse->func->read(fuse, addr);
35 }
36
37 static void *
nvkm_fuse_dtor(struct nvkm_subdev * subdev)38 nvkm_fuse_dtor(struct nvkm_subdev *subdev)
39 {
40 spin_lock_destroy(&nvkm_fuse(subdev)->lock);
41 return nvkm_fuse(subdev);
42 }
43
44 static const struct nvkm_subdev_func
45 nvkm_fuse = {
46 .dtor = nvkm_fuse_dtor,
47 };
48
49 int
nvkm_fuse_new_(const struct nvkm_fuse_func * func,struct nvkm_device * device,int index,struct nvkm_fuse ** pfuse)50 nvkm_fuse_new_(const struct nvkm_fuse_func *func, struct nvkm_device *device,
51 int index, struct nvkm_fuse **pfuse)
52 {
53 struct nvkm_fuse *fuse;
54 if (!(fuse = *pfuse = kzalloc(sizeof(*fuse), GFP_KERNEL)))
55 return -ENOMEM;
56 nvkm_subdev_ctor(&nvkm_fuse, device, index, &fuse->subdev);
57 fuse->func = func;
58 spin_lock_init(&fuse->lock);
59 return 0;
60 }
61