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
13typedef struct arm_smccc_1_2_regs ffa_value_t;
14
15typedef void (ffa_fn)(ffa_value_t, ffa_value_t *);
16
17bool ffa_device_is_valid(struct ffa_device *ffa_dev);
18void ffa_device_match_uuid(struct ffa_device *ffa_dev, const uuid_t *uuid);
19
20#ifdef CONFIG_ARM_FFA_SMCCC
21int __init ffa_transport_init(ffa_fn **invoke_ffa_fn);
22#else
23static inline int __init ffa_transport_init(ffa_fn **invoke_ffa_fn)
24{
25	return -EOPNOTSUPP;
26}
27#endif
28
29#endif /* _FFA_COMMON_H */