linux/linux-5.4.31/arch/arm64/mm/copypage.c

27 lines
600 B
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* Based on arch/arm/mm/copypage.c
*
* Copyright (C) 2002 Deep Blue Solutions Ltd, All Rights Reserved.
* Copyright (C) 2012 ARM Ltd.
*/
#include <linux/mm.h>
#include <asm/page.h>
#include <asm/cacheflush.h>
void __cpu_copy_user_page(void *kto, const void *kfrom, unsigned long vaddr)
{
struct page *page = virt_to_page(kto);
copy_page(kto, kfrom);
flush_dcache_page(page);
}
EXPORT_SYMBOL_GPL(__cpu_copy_user_page);
void __cpu_clear_user_page(void *kaddr, unsigned long vaddr)
{
clear_page(kaddr);
}
EXPORT_SYMBOL_GPL(__cpu_clear_user_page);