diff options
Diffstat (limited to 'include/drivers/arm/ethosn.h')
| -rw-r--r-- | include/drivers/arm/ethosn.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/include/drivers/arm/ethosn.h b/include/drivers/arm/ethosn.h new file mode 100644 index 0000000..dbaf16c --- /dev/null +++ b/include/drivers/arm/ethosn.h @@ -0,0 +1,62 @@ +/* + * Copyright (c) 2021-2022, Arm Limited. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef ETHOSN_H +#define ETHOSN_H + +#include <lib/smccc.h> + +/* 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(2) +#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 +#define ETHOSN_UNKNOWN_ALLOCATOR_IDX -6 + +uintptr_t ethosn_smc_handler(uint32_t smc_fid, + u_register_t core_addr, + u_register_t asset_alloc_idx, + u_register_t x3, + u_register_t x4, + void *cookie, + void *handle, + u_register_t flags); + +#endif /* ETHOSN_H */ |