[PATCH 44/54] Add arch/nios2/include/asm/pgtable-bits.h

[PATCH 44/54] Add arch/nios2/include/asm/pgtable-bits.h

[franck.jullien]

From: Franck JULLIEN <franck.jullien@gmail.com>

Add arch/nios2/include/asm/pgtable-bits.h

---
 arch/nios2/include/asm/pgtable-bits.h |   38 +++++++++++++++++++++++++++++++++
 1 files changed, 38 insertions(+), 0 deletions(-)
 create mode 100644 arch/nios2/include/asm/pgtable-bits.h

diff --git a/arch/nios2/include/asm/pgtable-bits.h b/arch/nios2/include/asm/pgtable-bits.h
new file mode 100644
index 0000000..0e04c38
--- /dev/null
+++ b/arch/nios2/include/asm/pgtable-bits.h
@@ -0,0 +1,38 @@
+/*
+ * 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) 1994 - 2002 by Ralf Baechle
+ * Copyright (C) 1999, 2000, 2001 Silicon Graphics, Inc.
+ * Copyright (C) 2002  Maciej W. Rozycki
+ */
+#ifndef _ASM_NIOS2_PGTABLE_BITS_H
+#define _ASM_NIOS2_PGTABLE_BITS_H
+
+/* These are actual HW defined protection bits (unshifted) in TLBACC
+ */
+#define _PAGE_GLOBAL                (1<<0)
+#define _PAGE_EXEC                  (1<<1)
+#define _PAGE_WRITE                 (1<<2)
+#define _PAGE_READ                  (1<<3)
+#define _PAGE_CACHED                (1<<4)
+
+/* TLBACC also has 7 IGNORE bits to use for SW defined attributes
+ */
+#define _PAGE_PRESENT               (1<<5)
+#define _PAGE_ACCESSED              (1<<6)  
+#define _PAGE_MODIFIED              (1<<7)  
+#define _PAGE_FILE                  (1<<8)  
+#define _PAGE_VALID                 (1<<9)
+#define _PAGE_OLD                   (1<<10)
+
+#if 1
+/* ivho: lets not turn on caches right now...
+ */
+#define PAGE_CACHABLE_DEFAULT	_PAGE_CACHED
+#else
+#define PAGE_CACHABLE_DEFAULT	0
+#endif
+
+#endif /* _ASM_NIOS2_PGTABLE_BITS_H */
-- 
1.7.3.4


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