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ab92b38a01
We move the SYS_CACHE_SHIFT_N options from arch/arm/Kconfig to arch/Kconfig, and introduce SYS_CACHE_SHIFT_4 to provide a size of 16. Introduce select statements for other architectures based on current usage. For MIPS, we take the existing arch-specific symbol and migrate to the generic symbol. This lets us remove a little bit of otherwise unused code. Cc: Alexey Brodkin <alexey.brodkin@synopsys.com> Cc: Anup Patel <anup.patel@wdc.com> Cc: Atish Patra <atish.patra@wdc.com> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Leo <ycliang@andestech.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Sean Anderson <seanga2@gmail.com> Cc: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com> Acked-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Rick Chen <rick@andestech.com>
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
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*/
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#ifndef __ASM_ARC_CACHE_H
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#define __ASM_ARC_CACHE_H
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#include <config.h>
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/*
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* As of today we may handle any L1 cache line length right in software.
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* For that essentially cache line length is a variable not constant.
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* And to satisfy users of ARCH_DMA_MINALIGN we just use largest line length
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* that may exist in either L1 or L2 (AKA SLC) caches on ARC.
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*/
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#define ARCH_DMA_MINALIGN 128
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#if defined(ARC_MMU_ABSENT)
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#define CONFIG_ARC_MMU_VER 0
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#elif defined(CONFIG_ARC_MMU_V2)
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#define CONFIG_ARC_MMU_VER 2
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#elif defined(CONFIG_ARC_MMU_V3)
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#define CONFIG_ARC_MMU_VER 3
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#elif defined(CONFIG_ARC_MMU_V4)
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#define CONFIG_ARC_MMU_VER 4
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#endif
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#ifndef __ASSEMBLY__
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void cache_init(void);
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void flush_n_invalidate_dcache_all(void);
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void sync_n_cleanup_cache_all(void);
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static const inline int is_ioc_enabled(void)
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{
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return IS_ENABLED(CONFIG_ARC_DBG_IOC_ENABLE);
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}
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/*
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* We export SLC control functions to use them in platform configuration code.
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* They maust not be used in any generic code!
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*/
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void slc_enable(void);
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void slc_disable(void);
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#endif /* __ASSEMBLY__ */
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#endif /* __ASM_ARC_CACHE_H */
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