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// SPDX-License-Identifier: GPL-2.0
// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
#include <linux/cache.h>
#include <linux/highmem.h>
#include <linux/mm.h>
#include <asm/cache.h>
void update_mmu_cache(struct vm_area_struct *vma, unsigned long address,
pte_t *pte)
{
unsigned long addr, pfn;
struct page *page;
pfn = pte_pfn(*pte);
if (unlikely(!pfn_valid(pfn)))
return;
page = pfn_to_page(pfn);
if (page == ZERO_PAGE(0))
return;
addr = (unsigned long) kmap_atomic(page);
cache_wbinv_range(addr, addr + PAGE_SIZE);
kunmap_atomic((void *) addr);
}
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