ARM: 7075/1: LPAE: Factor out 2-level page table definitions into separate files

[pandora-kernel.git] / arch / arm / include / asm / pgtable-2level-hwdef.h

diff --git a/arch/arm/include/asm/pgtable-2level-hwdef.h b/arch/arm/include/asm/pgtable-2level-hwdef.h
new file mode 100644 (file)
index 0000000..436529c
--- /dev/null
+++ b/arch/arm/include/asm/pgtable-2level-hwdef.h
@@ -0,0 +1,91 @@
+/*
+ *  arch/arm/include/asm/pgtable-2level-hwdef.h
+ *
+ *  Copyright (C) 1995-2002 Russell King
+ *
+ * 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 _ASM_PGTABLE_2LEVEL_HWDEF_H
+#define _ASM_PGTABLE_2LEVEL_HWDEF_H
+
+/*
+ * Hardware page table definitions.
+ *
+ * + Level 1 descriptor (PMD)
+ *   - common
+ */
+#define PMD_TYPE_MASK          (3 << 0)
+#define PMD_TYPE_FAULT         (0 << 0)
+#define PMD_TYPE_TABLE         (1 << 0)
+#define PMD_TYPE_SECT          (2 << 0)
+#define PMD_BIT4               (1 << 4)
+#define PMD_DOMAIN(x)          ((x) << 5)
+#define PMD_PROTECTION         (1 << 9)        /* v5 */
+/*
+ *   - section
+ */
+#define PMD_SECT_BUFFERABLE    (1 << 2)
+#define PMD_SECT_CACHEABLE     (1 << 3)
+#define PMD_SECT_XN            (1 << 4)        /* v6 */
+#define PMD_SECT_AP_WRITE      (1 << 10)
+#define PMD_SECT_AP_READ       (1 << 11)
+#define PMD_SECT_TEX(x)                ((x) << 12)     /* v5 */
+#define PMD_SECT_APX           (1 << 15)       /* v6 */
+#define PMD_SECT_S             (1 << 16)       /* v6 */
+#define PMD_SECT_nG            (1 << 17)       /* v6 */
+#define PMD_SECT_SUPER         (1 << 18)       /* v6 */
+#define PMD_SECT_AF            (0)
+
+#define PMD_SECT_UNCACHED      (0)
+#define PMD_SECT_BUFFERED      (PMD_SECT_BUFFERABLE)
+#define PMD_SECT_WT            (PMD_SECT_CACHEABLE)
+#define PMD_SECT_WB            (PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE)
+#define PMD_SECT_MINICACHE     (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE)
+#define PMD_SECT_WBWA          (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE)
+#define PMD_SECT_NONSHARED_DEV (PMD_SECT_TEX(2))
+
+/*
+ *   - coarse table (not used)
+ */
+
+/*
+ * + Level 2 descriptor (PTE)
+ *   - common
+ */
+#define PTE_TYPE_MASK          (3 << 0)
+#define PTE_TYPE_FAULT         (0 << 0)
+#define PTE_TYPE_LARGE         (1 << 0)
+#define PTE_TYPE_SMALL         (2 << 0)
+#define PTE_TYPE_EXT           (3 << 0)        /* v5 */
+#define PTE_BUFFERABLE         (1 << 2)
+#define PTE_CACHEABLE          (1 << 3)
+
+/*
+ *   - extended small page/tiny page
+ */
+#define PTE_EXT_XN             (1 << 0)        /* v6 */
+#define PTE_EXT_AP_MASK                (3 << 4)
+#define PTE_EXT_AP0            (1 << 4)
+#define PTE_EXT_AP1            (2 << 4)
+#define PTE_EXT_AP_UNO_SRO     (0 << 4)
+#define PTE_EXT_AP_UNO_SRW     (PTE_EXT_AP0)
+#define PTE_EXT_AP_URO_SRW     (PTE_EXT_AP1)
+#define PTE_EXT_AP_URW_SRW     (PTE_EXT_AP1|PTE_EXT_AP0)
+#define PTE_EXT_TEX(x)         ((x) << 6)      /* v5 */
+#define PTE_EXT_APX            (1 << 9)        /* v6 */
+#define PTE_EXT_COHERENT       (1 << 9)        /* XScale3 */
+#define PTE_EXT_SHARED         (1 << 10)       /* v6 */
+#define PTE_EXT_NG             (1 << 11)       /* v6 */
+
+/*
+ *   - small page
+ */
+#define PTE_SMALL_AP_MASK      (0xff << 4)
+#define PTE_SMALL_AP_UNO_SRO   (0x00 << 4)
+#define PTE_SMALL_AP_UNO_SRW   (0x55 << 4)
+#define PTE_SMALL_AP_URO_SRW   (0xaa << 4)
+#define PTE_SMALL_AP_URW_SRW   (0xff << 4)
+
+#endif