[S390] Convert to SPARSEMEM & SPARSEMEM_VMEMMAP

Convert s390 to SPARSEMEM and SPARSEMEM_VMEMMAP. We do a select
of SPARSEMEM_VMEMMAP since it is configurable. This is because
SPARSEMEM without SPARSEMEM_VMEMMAP gives us a hell of broken
include dependencies that I don't want to fix.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/include/asm-s390/sparsemem.h b/include/asm-s390/sparsemem.h
new file mode 100644
index 000000000000..06dfdab6c0e8
--- /dev/null
+++ b/include/asm-s390/sparsemem.h
@@ -0,0 +1,18 @@
+#ifndef _ASM_S390_SPARSEMEM_H
+#define _ASM_S390_SPARSEMEM_H
+
+#define SECTION_SIZE_BITS       25
+
+#ifdef CONFIG_64BIT
+
+#define MAX_PHYSADDR_BITS       42
+#define MAX_PHYSMEM_BITS        42
+
+#else
+
+#define MAX_PHYSADDR_BITS       31
+#define MAX_PHYSMEM_BITS        31
+
+#endif /* CONFIG_64BIT */
+
+#endif /* _ASM_S390_SPARSEMEM_H */