40 lines
783 B
C
40 lines
783 B
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2021 ARM Ltd.
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*/
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#include <linux/printk.h>
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#include "common.h"
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static void __arm_ffa_fn_smc(ffa_value_t args, ffa_value_t *res)
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{
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arm_smccc_1_2_smc(&args, res);
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}
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static void __arm_ffa_fn_hvc(ffa_value_t args, ffa_value_t *res)
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{
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arm_smccc_1_2_hvc(&args, res);
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}
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int __init ffa_transport_init(ffa_fn **invoke_ffa_fn)
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{
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enum arm_smccc_conduit conduit;
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if (arm_smccc_get_version() < ARM_SMCCC_VERSION_1_2)
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return -EOPNOTSUPP;
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conduit = arm_smccc_1_1_get_conduit();
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if (conduit == SMCCC_CONDUIT_NONE) {
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pr_err("%s: invalid SMCCC conduit\n", __func__);
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return -EOPNOTSUPP;
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}
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if (conduit == SMCCC_CONDUIT_SMC)
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*invoke_ffa_fn = __arm_ffa_fn_smc;
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else
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*invoke_ffa_fn = __arm_ffa_fn_hvc;
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return 0;
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}
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