1 files changed, 48 insertions, 0 deletions

diff --git a/arch/powerpc/mm/mem_pieces.h b/arch/powerpc/mm/mem_pieces.h
new file mode 100644
index 000000000000..e2b700dc7f18
--- /dev/null
+++ b/arch/powerpc/mm/mem_pieces.h
@@ -0,0 +1,48 @@
+/*
+ *    Copyright (c) 1996 Paul Mackerras <paulus@cs.anu.edu.au>
+ *      Changes to accommodate Power Macintoshes.
+ *    Cort Dougan <cort@cs.nmt.edu>
+ *      Rewrites.
+ *    Grant Erickson <grant@lcse.umn.edu>
+ *      General rework and split from mm/init.c.
+ *
+ *    Module name: mem_pieces.h
+ *
+ *    Description:
+ *      Routines and data structures for manipulating and representing
+ *      phyiscal memory extents (i.e. address/length pairs).
+ *
+ */
+
+#ifndef __MEM_PIECES_H__
+#define __MEM_PIECES_H__
+
+#include <asm/prom.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* Type Definitions */
+
+#define MEM_PIECES_MAX  32
+
+struct mem_pieces {
+    int n_regions;
+    struct reg_property regions[MEM_PIECES_MAX];
+};
+
+/* Function Prototypes */
+
+extern void     *mem_pieces_find(unsigned int size, unsigned int align);
+extern void      mem_pieces_remove(struct mem_pieces *mp, unsigned int start,
+                                   unsigned int size, int must_exist);
+extern void      mem_pieces_coalesce(struct mem_pieces *mp);
+extern void      mem_pieces_sort(struct mem_pieces *mp);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __MEM_PIECES_H__ */