diff options
Diffstat (limited to 'arch/csky/abiv2/cacheflush.c')
| -rw-r--r-- | arch/csky/abiv2/cacheflush.c | 31 |
1 files changed, 17 insertions, 14 deletions
diff --git a/arch/csky/abiv2/cacheflush.c b/arch/csky/abiv2/cacheflush.c index 500eb8f69397..876028b1083f 100644 --- a/arch/csky/abiv2/cacheflush.c +++ b/arch/csky/abiv2/cacheflush.c @@ -7,30 +7,33 @@ #include <asm/cache.h> #include <asm/tlbflush.h> -void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, - pte_t *pte) +void update_mmu_cache_range(struct vm_fault *vmf, struct vm_area_struct *vma, + unsigned long address, pte_t *pte, unsigned int nr) { - unsigned long addr; - struct page *page; + unsigned long pfn = pte_pfn(*pte); + struct folio *folio; + unsigned int i; flush_tlb_page(vma, address); - if (!pfn_valid(pte_pfn(*pte))) + if (!pfn_valid(pfn)) return; - page = pfn_to_page(pte_pfn(*pte)); - if (page == ZERO_PAGE(0)) - return; + folio = page_folio(pfn_to_page(pfn)); - if (test_and_set_bit(PG_dcache_clean, &page->flags)) + if (test_and_set_bit(PG_dcache_clean, &folio->flags)) return; - addr = (unsigned long) kmap_atomic(page); - - icache_inv_range(address, address + PAGE_SIZE); - dcache_wb_range(addr, addr + PAGE_SIZE); + icache_inv_range(address, address + nr*PAGE_SIZE); + for (i = 0; i < folio_nr_pages(folio); i++) { + unsigned long addr = (unsigned long) kmap_local_folio(folio, + i * PAGE_SIZE); - kunmap_atomic((void *) addr); + dcache_wb_range(addr, addr + PAGE_SIZE); + if (vma->vm_flags & VM_EXEC) + icache_inv_range(addr, addr + PAGE_SIZE); + kunmap_local((void *) addr); + } } void flush_icache_deferred(struct mm_struct *mm) |