1 files changed, 17 insertions, 0 deletions

diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h
index 8f1e8be8d15d..6ab3ba82d255 100644
--- a/include/asm-sh/pgtable.h
+++ b/include/asm-sh/pgtable.h
@@ -29,6 +29,23 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
 #endif /* !__ASSEMBLY__ */
 
 /*
+ * Effective and physical address definitions, to aid with sign
+ * extension.
+ */
+#define NEFF            32
+#define NEFF_SIGN       (1LL << (NEFF - 1))
+#define NEFF_MASK       (-1LL << NEFF)
+
+#ifdef CONFIG_29BIT
+#define NPHYS           29
+#else
+#define NPHYS           32
+#endif
+
+#define NPHYS_SIGN      (1LL << (NPHYS - 1))
+#define NPHYS_MASK      (-1LL << NPHYS)
+
+/*
  * traditional two-level paging structure
  */
 /* PTE bits */