drivers/firmware/arm_ffa/common.h

   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
  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 */