*
* Copyright (C) 2003 by Ralf Baechle
*/
-#include <linux/config.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/bootmem.h>
#include <linux/highmem.h>
+#include <asm/fixmap.h>
#include <asm/pgtable.h>
void pgd_init(unsigned long page)
}
}
-#ifdef CONFIG_HIGHMEM
-static void __init fixrange_init (unsigned long start, unsigned long end,
- pgd_t *pgd_base)
-{
- pgd_t *pgd;
- pmd_t *pmd;
- pte_t *pte;
- int i, j;
- unsigned long vaddr;
-
- vaddr = start;
- i = __pgd_offset(vaddr);
- j = __pmd_offset(vaddr);
- pgd = pgd_base + i;
-
- for ( ; (i < PTRS_PER_PGD) && (vaddr != end); pgd++, i++) {
- pmd = (pmd_t *)pgd;
- for (; (j < PTRS_PER_PMD) && (vaddr != end); pmd++, j++) {
- if (pmd_none(*pmd)) {
- pte = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);
- set_pmd(pmd, __pmd((unsigned long)pte));
- if (pte != pte_offset_kernel(pmd, 0))
- BUG();
- }
- vaddr += PMD_SIZE;
- }
- j = 0;
- }
-}
-#endif
-
void __init pagetable_init(void)
{
-#ifdef CONFIG_HIGHMEM
unsigned long vaddr;
- pgd_t *pgd, *pgd_base;
+ pgd_t *pgd_base;
+#ifdef CONFIG_HIGHMEM
+ pgd_t *pgd;
+ pud_t *pud;
pmd_t *pmd;
pte_t *pte;
#endif
pgd_init((unsigned long)swapper_pg_dir
+ sizeof(pgd_t) * USER_PTRS_PER_PGD);
-#ifdef CONFIG_HIGHMEM
pgd_base = swapper_pg_dir;
/*
vaddr = __fix_to_virt(__end_of_fixed_addresses - 1) & PMD_MASK;
fixrange_init(vaddr, 0, pgd_base);
+#ifdef CONFIG_HIGHMEM
/*
* Permanent kmaps:
*/
fixrange_init(vaddr, vaddr + PAGE_SIZE*LAST_PKMAP, pgd_base);
pgd = swapper_pg_dir + __pgd_offset(vaddr);
- pmd = pmd_offset(pgd, vaddr);
+ pud = pud_offset(pgd, vaddr);
+ pmd = pmd_offset(pud, vaddr);
pte = pte_offset_kernel(pmd, vaddr);
pkmap_page_table = pte;
#endif