X-Git-Url: http://git.onelab.eu/?p=linux-2.6.git;a=blobdiff_plain;f=include%2Fasm-arm%2Fpgtable.h;fp=include%2Fasm-arm%2Fpgtable.h;h=70e00d08345ec93d6b989fc47b2a5099272375d6;hp=8d3919c6458c6c9326ef35a35ee7c848d34ac467;hb=64ba3f394c830ec48a1c31b53dcae312c56f1604;hpb=be1e6109ac94a859551f8e1774eb9a8469fe055c

diff --git a/include/asm-arm/pgtable.h b/include/asm-arm/pgtable.h
index 8d3919c64..70e00d083 100644
--- a/include/asm-arm/pgtable.h
+++ b/include/asm-arm/pgtable.h
@@ -11,15 +11,9 @@
 #define _ASMARM_PGTABLE_H
 
 #include <asm-generic/4level-fixup.h>
-#include <asm/proc-fns.h>
-
-#ifndef CONFIG_MMU
-
-#include "pgtable-nommu.h"
-
-#else
 
 #include <asm/memory.h>
+#include <asm/proc-fns.h>
 #include <asm/arch/vmalloc.h>
 
 /*
@@ -142,6 +136,81 @@ extern void __pgd_error(const char *file, int line, unsigned long val);
 #define SUPERSECTION_SIZE	(1UL << SUPERSECTION_SHIFT)
 #define SUPERSECTION_MASK	(~(SUPERSECTION_SIZE-1))
 
+/*
+ * 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_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_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_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)
+
 /*
  * "Linux" PTE definitions.
  *
@@ -162,12 +231,16 @@ extern void __pgd_error(const char *file, int line, unsigned long val);
 #define L_PTE_WRITE		(1 << 5)
 #define L_PTE_EXEC		(1 << 6)
 #define L_PTE_DIRTY		(1 << 7)
-#define L_PTE_COHERENT		(1 << 9)	/* I/O coherent (xsc3) */
 #define L_PTE_SHARED		(1 << 10)	/* shared between CPUs (v6) */
 #define L_PTE_ASID		(1 << 11)	/* non-global (use ASID, v6) */
 
 #ifndef __ASSEMBLY__
 
+#include <asm/domain.h>
+
+#define _PAGE_USER_TABLE	(PMD_TYPE_TABLE | PMD_BIT4 | PMD_DOMAIN(DOMAIN_USER))
+#define _PAGE_KERNEL_TABLE	(PMD_TYPE_TABLE | PMD_BIT4 | PMD_DOMAIN(DOMAIN_KERNEL))
+
 /*
  * The following macros handle the cache and bufferable bits...
  */
@@ -384,6 +457,4 @@ extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
 
 #endif /* !__ASSEMBLY__ */
 
-#endif /* CONFIG_MMU */
-
 #endif /* _ASMARM_PGTABLE_H */