/* * Copyright (c) 2021, Arm Limited. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ #ifndef ETHOSN_H #define ETHOSN_H #include /* Function numbers */ #define ETHOSN_FNUM_VERSION U(0x50) #define ETHOSN_FNUM_IS_SEC U(0x51) #define ETHOSN_FNUM_HARD_RESET U(0x52) #define ETHOSN_FNUM_SOFT_RESET U(0x53) /* 0x54-0x5F reserved for future use */ /* SMC64 function IDs */ #define ETHOSN_FID_64(func_num) U(0xC2000000 | func_num) #define ETHOSN_FID_VERSION_64 ETHOSN_FID_64(ETHOSN_FNUM_VERSION) #define ETHOSN_FID_IS_SEC_64 ETHOSN_FID_64(ETHOSN_FNUM_IS_SEC) #define ETHOSN_FID_HARD_RESET_64 ETHOSN_FID_64(ETHOSN_FNUM_HARD_RESET) #define ETHOSN_FID_SOFT_RESET_64 ETHOSN_FID_64(ETHOSN_FNUM_SOFT_RESET) /* SMC32 function IDs */ #define ETHOSN_FID_32(func_num) U(0x82000000 | func_num) #define ETHOSN_FID_VERSION_32 ETHOSN_FID_32(ETHOSN_FNUM_VERSION) #define ETHOSN_FID_IS_SEC_32 ETHOSN_FID_32(ETHOSN_FNUM_IS_SEC) #define ETHOSN_FID_HARD_RESET_32 ETHOSN_FID_32(ETHOSN_FNUM_HARD_RESET) #define ETHOSN_FID_SOFT_RESET_32 ETHOSN_FID_32(ETHOSN_FNUM_SOFT_RESET) #define ETHOSN_NUM_SMC_CALLS 8 /* Macro to identify function calls */ #define ETHOSN_FID_MASK U(0xFFF0) #define ETHOSN_FID_VALUE U(0x50) #define is_ethosn_fid(_fid) (((_fid) & ETHOSN_FID_MASK) == ETHOSN_FID_VALUE) /* Service version */ #define ETHOSN_VERSION_MAJOR U(1) #define ETHOSN_VERSION_MINOR U(0) /* Return codes for function calls */ #define ETHOSN_SUCCESS 0 #define ETHOSN_NOT_SUPPORTED -1 /* -2 Reserved for NOT_REQUIRED */ /* -3 Reserved for INVALID_PARAMETER */ #define ETHOSN_FAILURE -4 #define ETHOSN_UNKNOWN_CORE_ADDRESS -5 uintptr_t ethosn_smc_handler(uint32_t smc_fid, u_register_t core_addr, u_register_t x2, u_register_t x3, u_register_t x4, void *cookie, void *handle, u_register_t flags); #endif /* ETHOSN_H */