sh: Definitions for 3-level page table layout

[firefly-linux-kernel-4.4.55.git] / arch / sh / mm / init.c

diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 432acd07e76a01815a26a74caeef7fa8ecfcdc0a..761910d142f8e11e5d2ae3f51de8c40dfa8aeda7 100644 (file)
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -120,7 +120,13 @@ void __init page_table_range_init(unsigned long start, unsigned long end,
        for ( ; (i < PTRS_PER_PGD) && (vaddr != end); pgd++, i++) {
                pud = (pud_t *)pgd;
                for ( ; (j < PTRS_PER_PUD) && (vaddr != end); pud++, j++) {
+#ifdef __PAGETABLE_PMD_FOLDED
                        pmd = (pmd_t *)pud;
+#else
+                       pmd = (pmd_t *)alloc_bootmem_low_pages(PAGE_SIZE);
+                       pud_populate(&init_mm, pud, pmd);
+                       pmd += k;
+#endif
                        for (; (k < PTRS_PER_PMD) && (vaddr != end); pmd++, k++) {
                                if (pmd_none(*pmd)) {
                                        pte = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);