1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 #ifndef _ASMRISCV_SBI_H_ 3 #define _ASMRISCV_SBI_H_ 4 5 #define SBI_SUCCESS 0 6 #define SBI_ERR_FAILURE -1 7 #define SBI_ERR_NOT_SUPPORTED -2 8 #define SBI_ERR_INVALID_PARAM -3 9 #define SBI_ERR_DENIED -4 10 #define SBI_ERR_INVALID_ADDRESS -5 11 #define SBI_ERR_ALREADY_AVAILABLE -6 12 #define SBI_ERR_ALREADY_STARTED -7 13 #define SBI_ERR_ALREADY_STOPPED -8 14 15 #ifndef __ASSEMBLY__ 16 17 enum sbi_ext_id { 18 SBI_EXT_BASE = 0x10, 19 SBI_EXT_TIME = 0x54494d45, 20 SBI_EXT_HSM = 0x48534d, 21 SBI_EXT_SRST = 0x53525354, 22 }; 23 24 enum sbi_ext_base_fid { 25 SBI_EXT_BASE_GET_SPEC_VERSION = 0, 26 SBI_EXT_BASE_GET_IMP_ID, 27 SBI_EXT_BASE_GET_IMP_VERSION, 28 SBI_EXT_BASE_PROBE_EXT, 29 SBI_EXT_BASE_GET_MVENDORID, 30 SBI_EXT_BASE_GET_MARCHID, 31 SBI_EXT_BASE_GET_MIMPID, 32 }; 33 34 enum sbi_ext_hsm_fid { 35 SBI_EXT_HSM_HART_START = 0, 36 SBI_EXT_HSM_HART_STOP, 37 SBI_EXT_HSM_HART_STATUS, 38 SBI_EXT_HSM_HART_SUSPEND, 39 }; 40 41 enum sbi_ext_time_fid { 42 SBI_EXT_TIME_SET_TIMER = 0, 43 }; 44 45 struct sbiret { 46 long error; 47 long value; 48 }; 49 50 struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0, 51 unsigned long arg1, unsigned long arg2, 52 unsigned long arg3, unsigned long arg4, 53 unsigned long arg5); 54 55 void sbi_shutdown(void); 56 struct sbiret sbi_hart_start(unsigned long hartid, unsigned long entry, unsigned long sp); 57 long sbi_probe(int ext); 58 59 #endif /* !__ASSEMBLY__ */ 60 #endif /* _ASMRISCV_SBI_H_ */ 61