68 lines
2.1 KiB
C
68 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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*
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* (C) COPYRIGHT 2015-2023 ARM Limited. All rights reserved.
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*
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* This program is free software and is provided to you under the terms of the
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* GNU General Public License version 2 as published by the Free Software
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* Foundation, and any use by you of this program is subject to the terms
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* of such GNU license.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you can access it online at
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* http://www.gnu.org/licenses/gpl-2.0.html.
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*
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*/
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#ifndef _KBASE_SMC_H_
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#define _KBASE_SMC_H_
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#if IS_ENABLED(CONFIG_ARM64)
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#include <linux/types.h>
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#define SMC_FAST_CALL (1U << 31)
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#define SMC_64 (1U << 30)
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#define SMC_OEN_OFFSET 24
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#define SMC_OEN_MASK (0x3FU << SMC_OEN_OFFSET) /* 6 bits */
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#define SMC_OEN_SIP (2 << SMC_OEN_OFFSET)
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#define SMC_OEN_STD (4 << SMC_OEN_OFFSET)
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/**
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* kbase_invoke_smc_fid - Perform a secure monitor call
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* @fid: The SMC function to call, see SMC Calling convention.
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* @arg0: First argument to the SMC.
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* @arg1: Second argument to the SMC.
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* @arg2: Third argument to the SMC.
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*
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* See SMC Calling Convention for details.
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*
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* Return: the return value from the SMC.
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*/
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u64 kbase_invoke_smc_fid(u32 fid, u64 arg0, u64 arg1, u64 arg2);
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/**
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* kbase_invoke_smc - Perform a secure monitor call
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* @oen: Owning Entity number (SIP, STD etc).
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* @function_number: The function number within the OEN.
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* @smc64: use SMC64 calling convention instead of SMC32.
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* @arg0: First argument to the SMC.
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* @arg1: Second argument to the SMC.
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* @arg2: Third argument to the SMC.
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*
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* See SMC Calling Convention for details.
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*
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* Return: the return value from the SMC call.
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*/
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u64 kbase_invoke_smc(u32 oen, u16 function_number, bool smc64, u64 arg0, u64 arg1, u64 arg2);
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#endif /* CONFIG_ARM64 */
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#endif /* _KBASE_SMC_H_ */
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