1 files changed, 28 insertions, 22 deletions

diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index fe532aeaa16d..edc842ff61ed 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -106,27 +106,31 @@ void __init page_table_range_init(unsigned long start, unsigned long end,
         pgd_t *pgd;
         pud_t *pud;
         pmd_t *pmd;
-        int pgd_idx;
+        pte_t *pte;
+        int i, j, k;
         unsigned long vaddr;
 
-        vaddr = start & PMD_MASK;
-        end = (end + PMD_SIZE - 1) & PMD_MASK;
-        pgd_idx = pgd_index(vaddr);
-        pgd = pgd_base + pgd_idx;
-
-        for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd++, pgd_idx++) {
-                BUG_ON(pgd_none(*pgd));
-                pud = pud_offset(pgd, 0);
-                BUG_ON(pud_none(*pud));
-                pmd = pmd_offset(pud, 0);
-
-                if (!pmd_present(*pmd)) {
-                        pte_t *pte_table;
-                        pte_table = (pte_t *)alloc_bootmem_low_pages(PAGE_SIZE);
-                        pmd_populate_kernel(&init_mm, pmd, pte_table);
+        vaddr = start;
+        i = __pgd_offset(vaddr);
+        j = __pud_offset(vaddr);
+        k = __pmd_offset(vaddr);
+        pgd = pgd_base + i;
+
+        for ( ; (i < PTRS_PER_PGD) && (vaddr != end); pgd++, i++) {
+                pud = (pud_t *)pgd;
+                for ( ; (j < PTRS_PER_PUD) && (vaddr != end); pud++, j++) {
+                        pmd = (pmd_t *)pud;
+                        for (; (k < PTRS_PER_PMD) && (vaddr != end); pmd++, k++) {
+                                if (pmd_none(*pmd)) {
+                                        pte = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);
+                                        pmd_populate_kernel(&init_mm, pmd, pte);
+                                        BUG_ON(pte != pte_offset_kernel(pmd, 0));
+                                }
+                                vaddr += PMD_SIZE;
+                        }
+                        k = 0;
                 }
-
-                vaddr += PMD_SIZE;
+                j = 0;
         }
 }
 #endif  /* CONFIG_MMU */
@@ -137,7 +141,7 @@ void __init page_table_range_init(unsigned long start, unsigned long end,
 void __init paging_init(void)
 {
         unsigned long max_zone_pfns[MAX_NR_ZONES];
-        unsigned long vaddr;
+        unsigned long vaddr, end;
         int nid;
 
         /* We don't need to map the kernel through the TLB, as
@@ -155,7 +159,8 @@ void __init paging_init(void)
          * pte's will be filled in by __set_fixmap().
          */
         vaddr = __fix_to_virt(__end_of_fixed_addresses - 1) & PMD_MASK;
-        page_table_range_init(vaddr, 0, swapper_pg_dir);
+        end = (FIXADDR_TOP + PMD_SIZE - 1) & PMD_MASK;
+        page_table_range_init(vaddr, end, swapper_pg_dir);
 
         kmap_coherent_init();
 
@@ -210,6 +215,9 @@ void __init mem_init(void)
                         high_memory = node_high_memory;
         }
 
+        /* Set this up early, so we can take care of the zero page */
+        cpu_cache_init();
+
         /* clear the zero-page */
         memset(empty_zero_page, 0, PAGE_SIZE);
         __flush_wback_region(empty_zero_page, PAGE_SIZE);
@@ -230,8 +238,6 @@ void __init mem_init(void)
                 datasize >> 10,
                 initsize >> 10);
 
-        p3_cache_init();
-
         /* Initialize the vDSO */
         vsyscall_init();
 }