1 files changed, 47 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/pte-hash64.h b/arch/powerpc/include/asm/pte-hash64.h
new file mode 100644
index 000000000000..62766636cc1e
--- /dev/null
+++ b/arch/powerpc/include/asm/pte-hash64.h
@@ -0,0 +1,47 @@
+#ifndef _ASM_POWERPC_PTE_HASH64_H
+#define _ASM_POWERPC_PTE_HASH64_H
+#ifdef __KERNEL__
+
+/*
+ * Common bits between 4K and 64K pages in a linux-style PTE.
+ * These match the bits in the (hardware-defined) PowerPC PTE as closely
+ * as possible. Additional bits may be defined in pgtable-hash64-*.h
+ */
+#define _PAGE_PRESENT	0x0001 /* software: pte contains a translation */
+#define _PAGE_USER	0x0002 /* matches one of the PP bits */
+#define _PAGE_FILE	0x0002 /* (!present only) software: pte holds file offset */
+#define _PAGE_EXEC	0x0004 /* No execute on POWER4 and newer (we invert) */
+#define _PAGE_GUARDED	0x0008
+#define _PAGE_COHERENT	0x0010 /* M: enforce memory coherence (SMP systems) */
+#define _PAGE_NO_CACHE	0x0020 /* I: cache inhibit */
+#define _PAGE_WRITETHRU	0x0040 /* W: cache write-through */
+#define _PAGE_DIRTY	0x0080 /* C: page changed */
+#define _PAGE_ACCESSED	0x0100 /* R: page referenced */
+#define _PAGE_RW	0x0200 /* software: user write access allowed */
+#define _PAGE_BUSY	0x0800 /* software: PTE & hash are busy */
+
+/* Strong Access Ordering */
+#define _PAGE_SAO	(_PAGE_WRITETHRU | _PAGE_NO_CACHE | _PAGE_COHERENT)
+
+#define _PAGE_BASE	(_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_COHERENT)
+
+#define _PAGE_WRENABLE	(_PAGE_RW | _PAGE_DIRTY)
+
+/* PTEIDX nibble */
+#define _PTEIDX_SECONDARY	0x8
+#define _PTEIDX_GROUP_IX	0x7
+
+#define PAGE_PROT_BITS	(_PAGE_GUARDED | _PAGE_COHERENT | \
+			 _PAGE_NO_CACHE | _PAGE_WRITETHRU |		\
+			 _PAGE_4K_PFN | _PAGE_RW | _PAGE_USER |		\
+			 _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_EXEC)
+
+
+#ifdef CONFIG_PPC_64K_PAGES
+#include <asm/pte-hash64-64k.h>
+#else
+#include <asm/pte-hash64-4k.h>
+#endif
+
+#endif /* __KERNEL__ */
+#endif /*  _ASM_POWERPC_PTE_HASH64_H */