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_defs.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 { 19 i915_reg_t reg; 20 u32 mask; 21 u32 value; 22 } status; 23 }; 24 25 void intel_huc_init_early(struct intel_huc *huc); 26 int intel_huc_init(struct intel_huc *huc); 27 void intel_huc_fini(struct intel_huc *huc); 28 int intel_huc_auth(struct intel_huc *huc); 29 int intel_huc_check_status(struct intel_huc *huc); 30 31 static inline int intel_huc_sanitize(struct intel_huc *huc) 32 { 33 intel_uc_fw_sanitize(&huc->fw); 34 return 0; 35 } 36 37 static inline bool intel_huc_is_supported(struct intel_huc *huc) 38 { 39 return intel_uc_fw_is_supported(&huc->fw); 40 } 41 42 static inline bool intel_huc_is_wanted(struct intel_huc *huc) 43 { 44 return intel_uc_fw_is_enabled(&huc->fw); 45 } 46 47 static inline bool intel_huc_is_used(struct intel_huc *huc) 48 { 49 GEM_BUG_ON(__intel_uc_fw_status(&huc->fw) == INTEL_UC_FIRMWARE_SELECTED); 50 return intel_uc_fw_is_available(&huc->fw); 51 } 52 53 static inline bool intel_huc_is_authenticated(struct intel_huc *huc) 54 { 55 return intel_uc_fw_is_running(&huc->fw); 56 } 57 58 void intel_huc_load_status(struct intel_huc *huc, struct drm_printer *p); 59 60 #endif 61