1 files changed, 31 insertions, 0 deletions

diff --git a/arch/mips/mm/pgtable-64.c b/arch/mips/mm/pgtable-64.c
index 25407794edb4..ee331bbd8f8a 100644
--- a/arch/mips/mm/pgtable-64.c
+++ b/arch/mips/mm/pgtable-64.c
@@ -11,6 +11,7 @@
 #include <asm/fixmap.h>
 #include <asm/pgtable.h>
 #include <asm/pgalloc.h>
+#include <asm/tlbflush.h>
 
 void pgd_init(unsigned long page)
 {
@@ -61,6 +62,36 @@ void pmd_init(unsigned long addr, unsigned long pagetable)
 }
 #endif
 
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+
+void pmdp_splitting_flush(struct vm_area_struct *vma,
+                         unsigned long address,
+                         pmd_t *pmdp)
+{
+        if (!pmd_trans_splitting(*pmdp)) {
+                pmd_t pmd = pmd_mksplitting(*pmdp);
+                set_pmd_at(vma->vm_mm, address, pmdp, pmd);
+        }
+}
+
+#endif
+
+pmd_t mk_pmd(struct page *page, pgprot_t prot)
+{
+        pmd_t pmd;
+
+        pmd_val(pmd) = (page_to_pfn(page) << _PFN_SHIFT) | pgprot_val(prot);
+
+        return pmd;
+}
+
+void set_pmd_at(struct mm_struct *mm, unsigned long addr,
+                pmd_t *pmdp, pmd_t pmd)
+{
+        *pmdp = pmd;
+        flush_tlb_all();
+}
+
 void __init pagetable_init(void)
 {
         unsigned long vaddr;