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Diffstat (limited to 'arch/mips/mm/pgtable-64.c')
-rw-r--r--arch/mips/mm/pgtable-64.c33
1 files changed, 30 insertions, 3 deletions
diff --git a/arch/mips/mm/pgtable-64.c b/arch/mips/mm/pgtable-64.c
index 0ae7b28b4db5..6fd6e96fdebb 100644
--- a/arch/mips/mm/pgtable-64.c
+++ b/arch/mips/mm/pgtable-64.c
@@ -19,10 +19,12 @@ void pgd_init(unsigned long page)
unsigned long *p, *end;
unsigned long entry;
-#ifdef __PAGETABLE_PMD_FOLDED
- entry = (unsigned long)invalid_pte_table;
-#else
+#if !defined(__PAGETABLE_PUD_FOLDED)
+ entry = (unsigned long)invalid_pud_table;
+#elif !defined(__PAGETABLE_PMD_FOLDED)
entry = (unsigned long)invalid_pmd_table;
+#else
+ entry = (unsigned long)invalid_pte_table;
#endif
p = (unsigned long *) page;
@@ -64,6 +66,28 @@ void pmd_init(unsigned long addr, unsigned long pagetable)
EXPORT_SYMBOL_GPL(pmd_init);
#endif
+#ifndef __PAGETABLE_PUD_FOLDED
+void pud_init(unsigned long addr, unsigned long pagetable)
+{
+ unsigned long *p, *end;
+
+ p = (unsigned long *)addr;
+ end = p + PTRS_PER_PUD;
+
+ do {
+ p[0] = pagetable;
+ p[1] = pagetable;
+ p[2] = pagetable;
+ p[3] = pagetable;
+ p[4] = pagetable;
+ p += 8;
+ p[-3] = pagetable;
+ p[-2] = pagetable;
+ p[-1] = pagetable;
+ } while (p != end);
+}
+#endif
+
pmd_t mk_pmd(struct page *page, pgprot_t prot)
{
pmd_t pmd;
@@ -87,6 +111,9 @@ void __init pagetable_init(void)
/* Initialize the entire pgd. */
pgd_init((unsigned long)swapper_pg_dir);
+#ifndef __PAGETABLE_PUD_FOLDED
+ pud_init((unsigned long)invalid_pud_table, (unsigned long)invalid_pmd_table);
+#endif
#ifndef __PAGETABLE_PMD_FOLDED
pmd_init((unsigned long)invalid_pmd_table, (unsigned long)invalid_pte_table);
#endif