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d0c0bce831
Parse the FFA nodes from the device-tree and register all the partitions whose services will be used in the kernel. In order to also enable in-kernel users of FFA interface, let us add simple set of operations for such devices. The in-kernel users are registered without the character device interface. Link: https://lore.kernel.org/r/20210521151033.181846-5-sudeep.holla@arm.com Tested-by: Jens Wiklander <jens.wiklander@linaro.org> Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
31 lines
708 B
C
31 lines
708 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2021 ARM Ltd.
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*/
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#ifndef _FFA_COMMON_H
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#define _FFA_COMMON_H
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#include <linux/arm_ffa.h>
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#include <linux/arm-smccc.h>
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#include <linux/err.h>
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typedef struct arm_smccc_1_2_regs ffa_value_t;
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typedef void (ffa_fn)(ffa_value_t, ffa_value_t *);
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int arm_ffa_bus_init(void);
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void arm_ffa_bus_exit(void);
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bool ffa_device_is_valid(struct ffa_device *ffa_dev);
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void ffa_device_match_uuid(struct ffa_device *ffa_dev, const uuid_t *uuid);
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#ifdef CONFIG_ARM_FFA_SMCCC
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int __init ffa_transport_init(ffa_fn **invoke_ffa_fn);
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#else
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static inline int __init ffa_transport_init(ffa_fn **invoke_ffa_fn)
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{
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return -EOPNOTSUPP;
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}
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#endif
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#endif /* _FFA_COMMON_H */
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