1 /* SPDX-License-Identifier: MIT */
2 /*
3  * Copyright © 2014-2019 Intel Corporation
4  */
5 
6 #ifndef _INTEL_HUC_H_
7 #define _INTEL_HUC_H_
8 
9 #include "i915_reg.h"
10 #include "intel_uc_fw.h"
11 #include "intel_huc_fw.h"
12 
13 struct intel_huc {
14 	/* Generic uC firmware management */
15 	struct intel_uc_fw fw;
16 
17 	/* HuC-specific additions */
18 	struct i915_vma *rsa_data;
19 
20 	struct {
21 		i915_reg_t reg;
22 		u32 mask;
23 		u32 value;
24 	} status;
25 };
26 
27 void intel_huc_init_early(struct intel_huc *huc);
28 int intel_huc_init(struct intel_huc *huc);
29 void intel_huc_fini(struct intel_huc *huc);
30 int intel_huc_auth(struct intel_huc *huc);
31 int intel_huc_check_status(struct intel_huc *huc);
32 
intel_huc_sanitize(struct intel_huc * huc)33 static inline int intel_huc_sanitize(struct intel_huc *huc)
34 {
35 	intel_uc_fw_sanitize(&huc->fw);
36 	return 0;
37 }
38 
intel_huc_is_supported(struct intel_huc * huc)39 static inline bool intel_huc_is_supported(struct intel_huc *huc)
40 {
41 	return intel_uc_fw_is_supported(&huc->fw);
42 }
43 
intel_huc_is_wanted(struct intel_huc * huc)44 static inline bool intel_huc_is_wanted(struct intel_huc *huc)
45 {
46 	return intel_uc_fw_is_enabled(&huc->fw);
47 }
48 
intel_huc_is_used(struct intel_huc * huc)49 static inline bool intel_huc_is_used(struct intel_huc *huc)
50 {
51 	GEM_BUG_ON(__intel_uc_fw_status(&huc->fw) == INTEL_UC_FIRMWARE_SELECTED);
52 	return intel_uc_fw_is_available(&huc->fw);
53 }
54 
intel_huc_is_authenticated(struct intel_huc * huc)55 static inline bool intel_huc_is_authenticated(struct intel_huc *huc)
56 {
57 	return intel_uc_fw_is_running(&huc->fw);
58 }
59 
60 void intel_huc_load_status(struct intel_huc *huc, struct drm_printer *p);
61 
62 #endif
63