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  bool ffa_device_is_valid(struct ffa_device *ffa_dev);
18  void ffa_device_match_uuid(struct ffa_device *ffa_dev, const uuid_t *uuid);
19  
20  #ifdef CONFIG_ARM_FFA_SMCCC
21  int __init ffa_transport_init(ffa_fn **invoke_ffa_fn);
22  #else
ffa_transport_init(ffa_fn ** invoke_ffa_fn)23  static inline int __init ffa_transport_init(ffa_fn **invoke_ffa_fn)
24  {
25  	return -EOPNOTSUPP;
26  }
27  #endif
28  
29  #endif /* _FFA_COMMON_H */
30