0545e9dc6d
commit d1edce71135cc6d98c0a4b5729774542b676e769 Author: sophgo-forum-service <forum_service@sophgo.com> Date: Fri Mar 15 16:07:33 2024 +0800 [fix] recommend using ssh method to clone repo. [fix] fix sensor driver repo branch name.
38 lines
882 B
C
38 lines
882 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/bitops.h>
|
|
#include <linux/mm.h>
|
|
|
|
#include <asm/page.h>
|
|
#include <asm/cacheflush.h>
|
|
#include <asm/cpufeature.h>
|
|
#include <asm/mte.h>
|
|
|
|
void copy_highpage(struct page *to, struct page *from)
|
|
{
|
|
struct page *kto = page_address(to);
|
|
struct page *kfrom = page_address(from);
|
|
|
|
copy_page(kto, kfrom);
|
|
|
|
if (system_supports_mte() && test_bit(PG_mte_tagged, &from->flags)) {
|
|
set_bit(PG_mte_tagged, &to->flags);
|
|
mte_copy_page_tags(kto, kfrom);
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(copy_highpage);
|
|
|
|
void copy_user_highpage(struct page *to, struct page *from,
|
|
unsigned long vaddr, struct vm_area_struct *vma)
|
|
{
|
|
copy_highpage(to, from);
|
|
flush_dcache_page(to);
|
|
}
|
|
EXPORT_SYMBOL_GPL(copy_user_highpage);
|