1 files changed, 60 insertions, 0 deletions

diff --git a/arch/score/mm/pgtable.c b/arch/score/mm/pgtable.c
new file mode 100644
index 000000000000..10b0962f83d4
--- /dev/null
+++ b/arch/score/mm/pgtable.c
@@ -0,0 +1,60 @@
+/*
+ * arch/score/mm/pgtable-32.c
+ *
+ * Score Processor version.
+ *
+ * Copyright (C) 2009 Sunplus Core Technology Co., Ltd.
+ *  Lennox Wu <lennox.wu@sunplusct.com>
+ *  Chen Liqin <liqin.chen@sunplusct.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/bootmem.h>
+#include <linux/init.h>
+#include <linux/pfn.h>
+#include <linux/mm.h>
+
+void pgd_init(unsigned long page)
+{
+        unsigned long *p = (unsigned long *) page;
+        int i;
+
+        for (i = 0; i < USER_PTRS_PER_PGD; i += 8) {
+                p[i + 0] = (unsigned long) invalid_pte_table;
+                p[i + 1] = (unsigned long) invalid_pte_table;
+                p[i + 2] = (unsigned long) invalid_pte_table;
+                p[i + 3] = (unsigned long) invalid_pte_table;
+                p[i + 4] = (unsigned long) invalid_pte_table;
+                p[i + 5] = (unsigned long) invalid_pte_table;
+                p[i + 6] = (unsigned long) invalid_pte_table;
+                p[i + 7] = (unsigned long) invalid_pte_table;
+        }
+}
+
+void __init pagetable_init(void)
+{
+        unsigned long vaddr;
+        pgd_t *pgd_base;
+
+        /* Initialize the entire pgd. */
+        pgd_init((unsigned long) swapper_pg_dir);
+        pgd_init((unsigned long) swapper_pg_dir
+                + sizeof(pgd_t) * USER_PTRS_PER_PGD);
+
+        pgd_base = swapper_pg_dir;
+        vaddr = __fix_to_virt(__end_of_fixed_addresses - 1) & PMD_MASK;
+}