/* * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 1999, 2000 by Silicon Graphics * Copyright (C) 2003 by Ralf Baechle */ #include <linux/init.h> #include <linux/mm.h> #include <asm/pgtable.h> void pgd_init(unsigned long page) { unsigned long *p, *end; p = (unsigned long *) page; end = p + PTRS_PER_PGD; while (p < end) { p[0] = (unsigned long) invalid_pmd_table; p[1] = (unsigned long) invalid_pmd_table; p[2] = (unsigned long) invalid_pmd_table; p[3] = (unsigned long) invalid_pmd_table; p[4] = (unsigned long) invalid_pmd_table; p[5] = (unsigned long) invalid_pmd_table; p[6] = (unsigned long) invalid_pmd_table; p[7] = (unsigned long) invalid_pmd_table; p += 8; } } void pmd_init(unsigned long addr, unsigned long pagetable) { unsigned long *p, *end; p = (unsigned long *) addr; end = p + PTRS_PER_PMD; while (p < end) { p[0] = (unsigned long)pagetable; p[1] = (unsigned long)pagetable; p[2] = (unsigned long)pagetable; p[3] = (unsigned long)pagetable; p[4] = (unsigned long)pagetable; p[5] = (unsigned long)pagetable; p[6] = (unsigned long)pagetable; p[7] = (unsigned long)pagetable; p += 8; } } void __init pagetable_init(void) { /* Initialize the entire pgd. */ pgd_init((unsigned long)swapper_pg_dir); pmd_init((unsigned long)invalid_pmd_table, (unsigned long)invalid_pte_table); }