1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright (C) 2021 ARM Ltd. 4 */ 5 6 #ifndef _FFA_COMMON_H 7 #define _FFA_COMMON_H 8 9 #include <linux/arm_ffa.h> 10 #include <linux/arm-smccc.h> 11 #include <linux/err.h> 12 13 typedef struct arm_smccc_1_2_regs ffa_value_t; 14 15 typedef void (ffa_fn)(ffa_value_t, ffa_value_t *); 16 17 int arm_ffa_bus_init(void); 18 void arm_ffa_bus_exit(void); 19 bool ffa_device_is_valid(struct ffa_device *ffa_dev); 20 void ffa_device_match_uuid(struct ffa_device *ffa_dev, const uuid_t *uuid); 21 22 #ifdef CONFIG_ARM_FFA_SMCCC 23 int __init ffa_transport_init(ffa_fn **invoke_ffa_fn); 24 #else 25 static inline int __init ffa_transport_init(ffa_fn **invoke_ffa_fn) 26 { 27 return -EOPNOTSUPP; 28 } 29 #endif 30 31 #endif /* _FFA_COMMON_H */ 32