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Diffstat (limited to 'arch/unicore32/include/asm/pgtable-hwdef.h')
-rw-r--r--arch/unicore32/include/asm/pgtable-hwdef.h55
1 files changed, 55 insertions, 0 deletions
diff --git a/arch/unicore32/include/asm/pgtable-hwdef.h b/arch/unicore32/include/asm/pgtable-hwdef.h
new file mode 100644
index 000000000000..7314e859cca0
--- /dev/null
+++ b/arch/unicore32/include/asm/pgtable-hwdef.h
@@ -0,0 +1,55 @@
+/*
+ * linux/arch/unicore32/include/asm/pgtable-hwdef.h
+ *
+ * Code specific to PKUnity SoC and UniCore ISA
+ *
+ * Copyright (C) 2001-2010 GUAN Xue-tao
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __UNICORE_PGTABLE_HWDEF_H__
+#define __UNICORE_PGTABLE_HWDEF_H__
+
+/*
+ * Hardware page table definitions.
+ *
+ * + Level 1 descriptor (PMD)
+ * - common
+ */
+#define PMD_TYPE_MASK (3 << 0)
+#define PMD_TYPE_TABLE (0 << 0)
+/*#define PMD_TYPE_LARGE (1 << 0) */
+#define PMD_TYPE_INVALID (2 << 0)
+#define PMD_TYPE_SECT (3 << 0)
+
+#define PMD_PRESENT (1 << 2)
+#define PMD_YOUNG (1 << 3)
+
+/*#define PMD_SECT_DIRTY (1 << 4) */
+#define PMD_SECT_CACHEABLE (1 << 5)
+#define PMD_SECT_EXEC (1 << 6)
+#define PMD_SECT_WRITE (1 << 7)
+#define PMD_SECT_READ (1 << 8)
+
+/*
+ * + Level 2 descriptor (PTE)
+ * - common
+ */
+#define PTE_TYPE_MASK (3 << 0)
+#define PTE_TYPE_SMALL (0 << 0)
+#define PTE_TYPE_MIDDLE (1 << 0)
+#define PTE_TYPE_LARGE (2 << 0)
+#define PTE_TYPE_INVALID (3 << 0)
+
+#define PTE_PRESENT (1 << 2)
+#define PTE_FILE (1 << 3) /* only when !PRESENT */
+#define PTE_YOUNG (1 << 3)
+#define PTE_DIRTY (1 << 4)
+#define PTE_CACHEABLE (1 << 5)
+#define PTE_EXEC (1 << 6)
+#define PTE_WRITE (1 << 7)
+#define PTE_READ (1 << 8)
+
+#endif