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authorIngo Molnar <mingo@elte.hu>2009-03-06 16:44:14 +0100
committerIngo Molnar <mingo@elte.hu>2009-03-06 16:45:01 +0100
commitf0ef03985130287c6c84ebe69416cf790e6cc00e (patch)
tree3ecb04cc4d82e5fc3ae5f1747e6da172ae8cbcb7 /arch/x86/include/asm/pgtable-3level_types.h
parent16097439703bcd38e9fe5608c12add6dacb825ea (diff)
parent31bbed527e7039203920c51c9fb48c27aed0820c (diff)
Merge branch 'x86/core' into tracing/textedit
Conflicts: arch/x86/Kconfig block/blktrace.c kernel/irq/handle.c Semantic conflict: kernel/trace/blktrace.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/pgtable-3level_types.h')
-rw-r--r--arch/x86/include/asm/pgtable-3level_types.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/x86/include/asm/pgtable-3level_types.h b/arch/x86/include/asm/pgtable-3level_types.h
new file mode 100644
index 00000000000..1bd5876c864
--- /dev/null
+++ b/arch/x86/include/asm/pgtable-3level_types.h
@@ -0,0 +1,48 @@
+#ifndef _ASM_X86_PGTABLE_3LEVEL_DEFS_H
+#define _ASM_X86_PGTABLE_3LEVEL_DEFS_H
+
+#ifndef __ASSEMBLY__
+#include <linux/types.h>
+
+typedef u64 pteval_t;
+typedef u64 pmdval_t;
+typedef u64 pudval_t;
+typedef u64 pgdval_t;
+typedef u64 pgprotval_t;
+
+typedef union {
+ struct {
+ unsigned long pte_low, pte_high;
+ };
+ pteval_t pte;
+} pte_t;
+#endif /* !__ASSEMBLY__ */
+
+#ifdef CONFIG_PARAVIRT
+#define SHARED_KERNEL_PMD (pv_info.shared_kernel_pmd)
+#else
+#define SHARED_KERNEL_PMD 1
+#endif
+
+#define PAGETABLE_LEVELS 3
+
+/*
+ * PGDIR_SHIFT determines what a top-level page table entry can map
+ */
+#define PGDIR_SHIFT 30
+#define PTRS_PER_PGD 4
+
+/*
+ * PMD_SHIFT determines the size of the area a middle-level
+ * page table can map
+ */
+#define PMD_SHIFT 21
+#define PTRS_PER_PMD 512
+
+/*
+ * entries per page directory level
+ */
+#define PTRS_PER_PTE 512
+
+
+#endif /* _ASM_X86_PGTABLE_3LEVEL_DEFS_H */