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authorPaul Mundt <lethal@linux-sh.org>2007-11-10 19:16:55 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-01-28 13:18:42 +0900
commit36bcd39dbca824daffe16d607ae574b6edc7d31a (patch)
tree93c096c3703b1a89c0a440c4ff54fac4cf141641 /include/asm-sh/pgtable.h
parentaf3c7dfe822b598a2f977098101ed8b63cf0fdd1 (diff)
downloadop-kernel-dev-36bcd39dbca824daffe16d607ae574b6edc7d31a.zip
op-kernel-dev-36bcd39dbca824daffe16d607ae574b6edc7d31a.tar.gz
sh: Split out 29-bit and 32-bit physical mode definitions.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/asm-sh/pgtable.h')
-rw-r--r--include/asm-sh/pgtable.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h
index 8f1e8be8d..6ab3ba8 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 */
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