xref: /netbsd-src/sys/external/bsd/drm2/dist/drm/nouveau/include/nvkm/subdev/secboot.h (revision 41ec02673d281bbb3d38e6c78504ce6e30c228c1)
1 /*	$NetBSD: secboot.h,v 1.2 2021/12/18 23:45:33 riastradh Exp $	*/
2 
3 /*
4  * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22  * DEALINGS IN THE SOFTWARE.
23  */
24 
25 #ifndef __NVKM_SECURE_BOOT_H__
26 #define __NVKM_SECURE_BOOT_H__
27 
28 #include <core/subdev.h>
29 
30 enum nvkm_secboot_falcon {
31 	NVKM_SECBOOT_FALCON_PMU = 0,
32 	NVKM_SECBOOT_FALCON_RESERVED = 1,
33 	NVKM_SECBOOT_FALCON_FECS = 2,
34 	NVKM_SECBOOT_FALCON_GPCCS = 3,
35 	NVKM_SECBOOT_FALCON_SEC2 = 7,
36 	NVKM_SECBOOT_FALCON_END = 8,
37 	NVKM_SECBOOT_FALCON_INVALID = 0xffffffff,
38 };
39 
40 extern const char *nvkm_secboot_falcon_name[];
41 
42 /**
43  * @wpr_set: whether the WPR region is currently set
44 */
45 struct nvkm_secboot {
46 	const struct nvkm_secboot_func *func;
47 	struct nvkm_acr *acr;
48 	struct nvkm_subdev subdev;
49 	struct nvkm_falcon *boot_falcon;
50 	struct nvkm_falcon *halt_falcon;
51 
52 	u64 wpr_addr;
53 	u32 wpr_size;
54 
55 	bool wpr_set;
56 };
57 #define nvkm_secboot(p) container_of((p), struct nvkm_secboot, subdev)
58 
59 bool nvkm_secboot_is_managed(struct nvkm_secboot *, enum nvkm_secboot_falcon);
60 int nvkm_secboot_reset(struct nvkm_secboot *, unsigned long);
61 
62 int gm200_secboot_new(struct nvkm_device *, int, struct nvkm_secboot **);
63 int gm20b_secboot_new(struct nvkm_device *, int, struct nvkm_secboot **);
64 int gp102_secboot_new(struct nvkm_device *, int, struct nvkm_secboot **);
65 int gp108_secboot_new(struct nvkm_device *, int, struct nvkm_secboot **);
66 int gp10b_secboot_new(struct nvkm_device *, int, struct nvkm_secboot **);
67 
68 #endif
69