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 33 static inline int intel_huc_sanitize(struct intel_huc *huc) 34 { 35 intel_uc_fw_sanitize(&huc->fw); 36 return 0; 37 } 38 39 static inline bool intel_huc_is_supported(struct intel_huc *huc) 40 { 41 return intel_uc_fw_is_supported(&huc->fw); 42 } 43 44 static inline bool intel_huc_is_wanted(struct intel_huc *huc) 45 { 46 return intel_uc_fw_is_enabled(&huc->fw); 47 } 48 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 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