mirror of
https://github.com/RT-Thread/rt-thread.git
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93 lines
2.2 KiB
C
93 lines
2.2 KiB
C
/*
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* Copyright (c) 2006-2025 RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2022-11-09 RT-Thread The first version
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*/
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#ifndef __CACHE_H__
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#define __CACHE_H__
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#include <rtdef.h>
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/**
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* @brief These APIs may not be supported by a specified architecture
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* But we have to include to all the cases to be 'general purpose'
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*/
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rt_always_inline void rt_hw_cpu_dcache_clean_local(void *addr, int size)
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{
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RT_UNUSED(addr);
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RT_UNUSED(size);
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}
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rt_always_inline void rt_hw_cpu_dcache_invalidate_local(void *addr, int size)
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{
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RT_UNUSED(addr);
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RT_UNUSED(size);
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}
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rt_always_inline void rt_hw_cpu_dcache_clean_and_invalidate_local(void *addr, int size)
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{
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RT_UNUSED(addr);
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RT_UNUSED(size);
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}
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rt_always_inline void rt_hw_cpu_dcache_clean_all_local(void)
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{
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}
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rt_always_inline void rt_hw_cpu_dcache_invalidate_all_local(void)
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{
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}
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rt_always_inline void rt_hw_cpu_dcache_clean_and_invalidate_all_local(void)
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{
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}
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/*use fence.i to invalidate all icache*/
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rt_always_inline void rt_hw_cpu_icache_invalidate_local(void *addr, int size)
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{
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}
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/*use fence.i to invalidate all icache*/
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rt_always_inline void rt_hw_cpu_icache_invalidate_all_local(void)
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{
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}
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/**
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* @brief Multi-core
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*/
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#define rt_hw_cpu_dcache_clean rt_hw_cpu_dcache_clean_local
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#define rt_hw_cpu_dcache_invalidate rt_hw_cpu_dcache_invalidate_local
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#define rt_hw_cpu_dcache_clean_and_invalidate rt_hw_cpu_dcache_clean_and_invalidate_local
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#define rt_hw_cpu_dcache_clean_all rt_hw_cpu_dcache_clean_all_local
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#define rt_hw_cpu_dcache_invalidate_all rt_hw_cpu_dcache_invalidate_all_local
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#define rt_hw_cpu_dcache_clean_and_invalidate_all rt_hw_cpu_dcache_clean_and_invalidate_all_local
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#define rt_hw_cpu_icache_invalidate rt_hw_cpu_icache_invalidate_local
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#define rt_hw_cpu_icache_invalidate_all rt_hw_cpu_icache_invalidate_all_local
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#define rt_hw_icache_invalidate_all rt_hw_cpu_icache_invalidate_all
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/** instruction barrier */
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static inline void rt_hw_cpu_sync(void)
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{
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}
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/**
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* @brief local cpu icahce & dcache synchronization
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*
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* @param addr
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* @param size
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*/
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void rt_hw_sync_cache_local(void *addr, int size);
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#endif /* __CACHE_H__ */
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