Merge branch 'x86/um-header' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'x86/um-header' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (26 commits)
  x86: canonicalize remaining header guards
  x86: drop double underscores from header guards
  x86: Fix ASM_X86__ header guards
  x86, um: get rid of uml-config.h
  x86, um: get rid of arch/um/Kconfig.arch
  x86, um: get rid of arch/um/os symlink
  x86, um: get rid of excessive includes of uml-config.h
  x86, um: get rid of header symlinks
  x86, um: merge Kconfig.i386 and Kconfig.x86_64
  x86, um: get rid of sysdep symlink
  x86, um: trim the junk from uml ptrace-*.h
  x86, um: take vm-flags.h to sysdep
  x86, um: get rid of uml asm/arch
  x86, um: get rid of uml highmem.h
  x86, um: get rid of uml unistd.h
  x86, um: get rid of system.h -> system.h include
  x86, um: uml atomic.h is not needed anymore
  x86, um: untangle uml ldt.h
  x86, um: get rid of more uml asm/arch uses
  x86, um: remove dead header (uml module-generic.h; never used these days)
  ...

1 files changed, 51 insertions, 0 deletions

diff --git a/arch/x86/include/asm/mmzone_64.h b/arch/x86/include/asm/mmzone_64.h
new file mode 100644
index 0000000..a5b3817
--- /dev/null
+++ b/arch/x86/include/asm/mmzone_64.h
@@ -0,0 +1,51 @@
+/* K8 NUMA support */
+/* Copyright 2002,2003 by Andi Kleen, SuSE Labs */
+/* 2.5 Version loosely based on the NUMAQ Code by Pat Gaughen. */
+#ifndef _ASM_X86_MMZONE_64_H
+#define _ASM_X86_MMZONE_64_H
+
+
+#ifdef CONFIG_NUMA
+
+#include <linux/mmdebug.h>
+
+#include <asm/smp.h>
+
+/* Simple perfect hash to map physical addresses to node numbers */
+struct memnode {
+	int shift;
+	unsigned int mapsize;
+	s16 *map;
+	s16 embedded_map[64 - 8];
+} ____cacheline_aligned; /* total size = 128 bytes */
+extern struct memnode memnode;
+#define memnode_shift memnode.shift
+#define memnodemap memnode.map
+#define memnodemapsize memnode.mapsize
+
+extern struct pglist_data *node_data[];
+
+static inline __attribute__((pure)) int phys_to_nid(unsigned long addr)
+{
+	unsigned nid;
+	VIRTUAL_BUG_ON(!memnodemap);
+	nid = memnodemap[addr >> memnode_shift];
+	VIRTUAL_BUG_ON(nid >= MAX_NUMNODES || !node_data[nid]);
+	return nid;
+}
+
+#define NODE_DATA(nid)		(node_data[nid])
+
+#define node_start_pfn(nid)	(NODE_DATA(nid)->node_start_pfn)
+#define node_end_pfn(nid)       (NODE_DATA(nid)->node_start_pfn +	\
+				 NODE_DATA(nid)->node_spanned_pages)
+
+extern int early_pfn_to_nid(unsigned long pfn);
+
+#ifdef CONFIG_NUMA_EMU
+#define FAKE_NODE_MIN_SIZE	(64 * 1024 * 1024)
+#define FAKE_NODE_MIN_HASH_MASK	(~(FAKE_NODE_MIN_SIZE - 1UL))
+#endif
+
+#endif
+#endif /* _ASM_X86_MMZONE_64_H */