| Mikael Olsson | 7da6619 | 2021-02-12 17:30:22 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2021, Arm Limited. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #ifndef ETHOSN_H |
| 8 | #define ETHOSN_H |
| 9 | |
| 10 | #include <lib/smccc.h> |
| 11 | |
| 12 | /* Function numbers */ |
| 13 | #define ETHOSN_FNUM_VERSION U(0x50) |
| 14 | #define ETHOSN_FNUM_IS_SEC U(0x51) |
| 15 | #define ETHOSN_FNUM_HARD_RESET U(0x52) |
| 16 | #define ETHOSN_FNUM_SOFT_RESET U(0x53) |
| 17 | /* 0x54-0x5F reserved for future use */ |
| 18 | |
| 19 | /* SMC64 function IDs */ |
| 20 | #define ETHOSN_FID_64(func_num) U(0xC2000000 | func_num) |
| 21 | #define ETHOSN_FID_VERSION_64 ETHOSN_FID_64(ETHOSN_FNUM_VERSION) |
| 22 | #define ETHOSN_FID_IS_SEC_64 ETHOSN_FID_64(ETHOSN_FNUM_IS_SEC) |
| 23 | #define ETHOSN_FID_HARD_RESET_64 ETHOSN_FID_64(ETHOSN_FNUM_HARD_RESET) |
| 24 | #define ETHOSN_FID_SOFT_RESET_64 ETHOSN_FID_64(ETHOSN_FNUM_SOFT_RESET) |
| 25 | |
| 26 | /* SMC32 function IDs */ |
| 27 | #define ETHOSN_FID_32(func_num) U(0x82000000 | func_num) |
| 28 | #define ETHOSN_FID_VERSION_32 ETHOSN_FID_32(ETHOSN_FNUM_VERSION) |
| 29 | #define ETHOSN_FID_IS_SEC_32 ETHOSN_FID_32(ETHOSN_FNUM_IS_SEC) |
| 30 | #define ETHOSN_FID_HARD_RESET_32 ETHOSN_FID_32(ETHOSN_FNUM_HARD_RESET) |
| 31 | #define ETHOSN_FID_SOFT_RESET_32 ETHOSN_FID_32(ETHOSN_FNUM_SOFT_RESET) |
| 32 | |
| 33 | #define ETHOSN_NUM_SMC_CALLS 8 |
| 34 | |
| 35 | /* Macro to identify function calls */ |
| 36 | #define ETHOSN_FID_MASK U(0xFFF0) |
| 37 | #define ETHOSN_FID_VALUE U(0x50) |
| 38 | #define is_ethosn_fid(_fid) (((_fid) & ETHOSN_FID_MASK) == ETHOSN_FID_VALUE) |
| 39 | |
| 40 | /* Service version */ |
| 41 | #define ETHOSN_VERSION_MAJOR U(0) |
| 42 | #define ETHOSN_VERSION_MINOR U(1) |
| 43 | |
| 44 | /* Return codes for function calls */ |
| 45 | #define ETHOSN_SUCCESS 0 |
| 46 | #define ETHOSN_NOT_SUPPORTED -1 |
| 47 | /* -2 Reserved for NOT_REQUIRED */ |
| 48 | /* -3 Reserved for INVALID_PARAMETER */ |
| 49 | #define ETHOSN_FAILURE -4 |
| 50 | #define ETHOSN_CORE_IDX_OUT_OF_RANGE -5 |
| 51 | |
| 52 | uintptr_t ethosn_smc_handler(uint32_t smc_fid, |
| 53 | u_register_t core_idx, |
| 54 | u_register_t x2, |
| 55 | u_register_t x3, |
| 56 | u_register_t x4, |
| 57 | void *cookie, |
| 58 | void *handle, |
| 59 | u_register_t flags); |
| 60 | |
| 61 | #endif /* ETHOSN_H */ |