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Diffstat (limited to 'arch/mips/mm/cache.c')
-rw-r--r--arch/mips/mm/cache.c39
1 files changed, 20 insertions, 19 deletions
diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c
index 7e3ea7766822..77d96db8253c 100644
--- a/arch/mips/mm/cache.c
+++ b/arch/mips/mm/cache.c
@@ -119,36 +119,37 @@ void __flush_anon_page(struct page *page, unsigned long vmaddr)
EXPORT_SYMBOL(__flush_anon_page);
-static void mips_flush_dcache_from_pte(pte_t pteval, unsigned long address)
+void __flush_icache_page(struct vm_area_struct *vma, struct page *page)
+{
+ unsigned long addr;
+
+ if (PageHighMem(page))
+ return;
+
+ addr = (unsigned long) page_address(page);
+ flush_data_cache_page(addr);
+}
+EXPORT_SYMBOL_GPL(__flush_icache_page);
+
+void __update_cache(struct vm_area_struct *vma, unsigned long address,
+ pte_t pte)
{
struct page *page;
- unsigned long pfn = pte_pfn(pteval);
+ unsigned long pfn, addr;
+ int exec = (vma->vm_flags & VM_EXEC) && !cpu_has_ic_fills_f_dc;
+ pfn = pte_pfn(pte);
if (unlikely(!pfn_valid(pfn)))
return;
-
page = pfn_to_page(pfn);
if (page_mapping(page) && Page_dcache_dirty(page)) {
- unsigned long page_addr = (unsigned long) page_address(page);
-
- if (!cpu_has_ic_fills_f_dc ||
- pages_do_alias(page_addr, address & PAGE_MASK))
- flush_data_cache_page(page_addr);
+ addr = (unsigned long) page_address(page);
+ if (exec || pages_do_alias(addr, address & PAGE_MASK))
+ flush_data_cache_page(addr);
ClearPageDcacheDirty(page);
}
}
-void set_pte_at(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep, pte_t pteval)
-{
- if (cpu_has_dc_aliases || !cpu_has_ic_fills_f_dc) {
- if (pte_present(pteval))
- mips_flush_dcache_from_pte(pteval, addr);
- }
-
- set_pte(ptep, pteval);
-}
-
unsigned long _page_cachable_default;
EXPORT_SYMBOL(_page_cachable_default);