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Currently the context save/restore helpers writes/reads the provided array using an index whose maximum value is determined by PLIC, which potentially may disagree with the caller to these helpers. Add a parameter to ask the caller to provide the size limit of the array to ensure no out-of-bound access happens. Signed-off-by: Bin Meng <bmeng@tinylab.org> Reviewed-by: Anup Patel <anup@brainfault.org>
33 lines
910 B
C
33 lines
910 B
C
/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2022 Samuel Holland <samuel@sholland.org>
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*/
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#ifndef __IRQCHIP_FDT_IRQCHIP_PLIC_H__
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#define __IRQCHIP_FDT_IRQCHIP_PLIC_H__
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#include <sbi/sbi_types.h>
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/**
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* Save the PLIC priority state
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* @param priority pointer to the memory region for the saved priority
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* @param num size of the memory region including interrupt source 0
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*/
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void fdt_plic_priority_save(u8 *priority, u32 num);
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/**
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* Restore the PLIC priority state
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* @param priority pointer to the memory region for the saved priority
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* @param num size of the memory region including interrupt source 0
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*/
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void fdt_plic_priority_restore(const u8 *priority, u32 num);
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void fdt_plic_context_save(bool smode, u32 *enable, u32 *threshold, u32 num);
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void fdt_plic_context_restore(bool smode, const u32 *enable, u32 threshold,
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u32 num);
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void thead_plic_restore(void);
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#endif
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