add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/c6x/include/asm/cacheflush.h
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@@ -1,12 +1,9 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  *  Port on Texas Instruments TMS320C6x architecture
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  *
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  *  Copyright (C) 2004, 2009, 2010 Texas Instruments Incorporated
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  *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
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- *
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- *  This program is free software; you can redistribute it and/or modify
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- *  it under the terms of the GNU General Public License version 2 as
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- *  published by the Free Software Foundation.
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  */
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 #ifndef _ASM_C6X_CACHEFLUSH_H
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 #define _ASM_C6X_CACHEFLUSH_H
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@@ -18,21 +15,6 @@
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 #include <asm/mman.h>
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 #include <asm/page.h>
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 #include <asm/string.h>
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-
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-/*
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- * virtually-indexed cache management (our cache is physically indexed)
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- */
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-#define flush_cache_all()			do {} while (0)
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-#define flush_cache_mm(mm)			do {} while (0)
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-#define flush_cache_dup_mm(mm)			do {} while (0)
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-#define flush_cache_range(mm, start, end)	do {} while (0)
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-#define flush_cache_page(vma, vmaddr, pfn)	do {} while (0)
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-#define flush_cache_vmap(start, end)		do {} while (0)
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-#define flush_cache_vunmap(start, end)		do {} while (0)
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-#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
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-#define flush_dcache_page(page)			do {} while (0)
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-#define flush_dcache_mmap_lock(mapping)		do {} while (0)
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-#define flush_dcache_mmap_unlock(mapping)	do {} while (0)
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 /*
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  * physically-indexed cache management
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@@ -52,14 +34,12 @@
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 			(unsigned long) page_address(page) + PAGE_SIZE)); \
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 } while (0)
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-
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 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
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 do {						     \
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 	memcpy(dst, src, len);			     \
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 	flush_icache_range((unsigned) (dst), (unsigned) (dst) + (len)); \
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 } while (0)
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-#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
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-	memcpy(dst, src, len)
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+#include <asm-generic/cacheflush.h>
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 #endif /* _ASM_C6X_CACHEFLUSH_H */