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