[PATCH] move cnodeid_to_nasid_table out of pda

Another step in the effort to eliminate the SN pda structure.
This patch moves the cnodeid_to_nasid_table field out of the pda,
making it a standalone per-cpu data item, and exports it so it can
be accessed by kernel modules.

Signed-off-by: Dean Nelson <dcn@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/include/asm-ia64/sn/arch.h b/include/asm-ia64/sn/arch.h
index 7c349f07916..e6d9aa6bb56 100644
--- a/include/asm-ia64/sn/arch.h
+++ b/include/asm-ia64/sn/arch.h
@@ -5,7 +5,7 @@
  *
  * SGI specific setup.
  *
- * Copyright (C) 1995-1997,1999,2001-2004 Silicon Graphics, Inc.  All rights reserved.
+ * Copyright (C) 1995-1997,1999,2001-2005 Silicon Graphics, Inc.  All rights reserved.
  * Copyright (C) 1999 Ralf Baechle (ralf@gnu.org)
  */
 #ifndef _ASM_IA64_SN_ARCH_H
@@ -47,6 +47,15 @@ DECLARE_PER_CPU(struct sn_hub_info_s, __sn_hub_info);
 #define MAX_COMPACT_NODES       2048
 #define CPUS_PER_NODE           4
 
+
+/*
+ * Compact node ID to nasid mappings kept in the per-cpu data areas of each
+ * cpu.
+ */
+DECLARE_PER_CPU(short, __sn_cnodeid_to_nasid[MAX_NUMNODES]);
+#define sn_cnodeid_to_nasid     (&__get_cpu_var(__sn_cnodeid_to_nasid[0]))
+
+
 extern void sn_flush_all_caches(long addr, long bytes);
 
 #endif /* _ASM_IA64_SN_ARCH_H */