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6d26b43c47
Add functions to enable/disable the cache. Signed-off-by: Ben Zong-You Xie <ben717@andestech.com> Link: https://lore.kernel.org/r/20251229071914.1451587-4-ben717@andestech.com Signed-off-by: Anup Patel <anup@brainfault.org>
54 lines
1.2 KiB
C
54 lines
1.2 KiB
C
/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2025 SiFive Inc.
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*/
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#ifndef __FDT_CMO_HELPER_H__
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#define __FDT_CMO_HELPER_H__
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#ifdef CONFIG_FDT_CACHE
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/**
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* Flush the private first level cache of the current hart
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*
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* @return 0 on success, or a negative error code on failure
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*/
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int fdt_cmo_private_flc_flush_all(void);
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/**
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* Flush the last level cache of the current hart
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*
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* @return 0 on success, or a negative error code on failure
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*/
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int fdt_cmo_llc_flush_all(void);
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/**
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* Enable/Disable the private first level cache of the current hart
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*
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* @return 0 on success, or a negative error code on failure
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*/
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int fdt_cmo_private_flc_enable(bool enable);
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/**
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* Enable/Disable the last level cache of the current hart
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*
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* @return 0 on success, or a negative error code on failure
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*/
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int fdt_cmo_llc_enable(bool enable);
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/**
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* Initialize the cache devices for each hart
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*
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* @param fdt devicetree blob
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* @param cold_boot cold init or warm init
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*
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* @return 0 on success, or a negative error code on failure
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*/
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int fdt_cmo_init(bool cold_boot);
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#else
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static inline int fdt_cmo_init(bool cold_boot) { return 0; }
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#endif /* CONFIG_FDT_CACHE */
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#endif /* __FDT_CMO_HELPER_H__ */
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