43 lines
899 B
C
43 lines
899 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/uaccess.h>
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#include <linux/mm.h>
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#include <asm/barrier.h>
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#include <asm/cacheflush.h>
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void memcpy_flushcache(void *dst, const void *src, size_t cnt)
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{
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memcpy(dst, src, cnt);
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flush_cache_all();
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}
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EXPORT_SYMBOL_GPL(memcpy_flushcache);
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void memcpy_page_flushcache(char *to, struct page *page, size_t offset,
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size_t len)
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{
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memcpy_flushcache(to, page_address(page) + offset, len);
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}
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unsigned long __copy_user_flushcache(void *to, const void __user *from,
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unsigned long n)
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{
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unsigned long rc = __copy_from_user(to, from, n);
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flush_cache_all();
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return rc;
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}
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#ifdef CONFIG_ARCH_HAS_PMEM_API
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void arch_wb_cache_pmem(void *addr, size_t size)
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{
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flush_cache_all();
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}
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EXPORT_SYMBOL_GPL(arch_wb_cache_pmem);
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void arch_invalidate_pmem(void *addr, size_t size)
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{
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flush_cache_all();
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}
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EXPORT_SYMBOL_GPL(arch_invalidate_pmem);
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#endif
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