From: franck.jullien@gmail.com
To: barebox@lists.infradead.org
Subject: [PATCH 44/54] Add arch/nios2/include/asm/pgtable-bits.h
Date: Thu, 3 Mar 2011 23:58:58 +0100 [thread overview]
Message-ID: <4d701d4e.9009d80a.2cd3.5ea2@mx.google.com> (raw)
In-Reply-To: <n>
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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reply other threads:[~2011-03-03 22:59 UTC|newest]
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