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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
*/
#ifndef __ASM_ARC_CACHE_H
#define __ASM_ARC_CACHE_H
#include <config.h>
/*
* As of today we may handle any L1 cache line length right in software.
* For that essentially cache line length is a variable not constant.
* And to satisfy users of ARCH_DMA_MINALIGN we just use largest line length
* that may exist in either L1 or L2 (AKA SLC) caches on ARC.
*/
#define ARCH_DMA_MINALIGN 128
/* CONFIG_SYS_CACHELINE_SIZE is used a lot in drivers */
#define CONFIG_SYS_CACHELINE_SIZE ARCH_DMA_MINALIGN
#if defined(ARC_MMU_ABSENT)
#define CONFIG_ARC_MMU_VER 0
#elif defined(CONFIG_ARC_MMU_V2)
#define CONFIG_ARC_MMU_VER 2
#elif defined(CONFIG_ARC_MMU_V3)
#define CONFIG_ARC_MMU_VER 3
#elif defined(CONFIG_ARC_MMU_V4)
#define CONFIG_ARC_MMU_VER 4
#endif
#ifndef __ASSEMBLY__
void cache_init(void);
void flush_n_invalidate_dcache_all(void);
void sync_n_cleanup_cache_all(void);
static const inline int is_ioc_enabled(void)
{
return IS_ENABLED(CONFIG_ARC_DBG_IOC_ENABLE);
}
/*
* We export SLC control functions to use them in platform configuration code.
* They maust not be used in any generic code!
*/
void slc_enable(void);
void slc_disable(void);
#endif /* __ASSEMBLY__ */
#endif /* __ASM_ARC_CACHE_H */
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