[IA64-SGI] move nodepda pointer out of pda

Remove the p_nodepda and p_subnodepda pointers from the pda_s structure.
And then define a new per-cpu pointer to the nodepda and export it so
that 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, 6 insertions, 9 deletions

diff --git a/include/asm-ia64/sn/nodepda.h b/include/asm-ia64/sn/nodepda.h
index 13cc1002b294..7138b1eafd6b 100644
--- a/include/asm-ia64/sn/nodepda.h
+++ b/include/asm-ia64/sn/nodepda.h
@@ -13,7 +13,6 @@
 #include <asm/irq.h>
 #include <asm/sn/arch.h>
 #include <asm/sn/intr.h>
-#include <asm/sn/pda.h>
 #include <asm/sn/bte.h>
 
 /*
@@ -67,20 +66,18 @@ typedef struct nodepda_s nodepda_t;
  * The next set of definitions provides this.
  * Routines are expected to use 
  *
- *      nodepda                 -> to access node PDA for the node on which code is running
- *      subnodepda              -> to access subnode PDA for the subnode on which code is running
- *
- *      NODEPDA(cnode)          -> to access node PDA for cnodeid 
- *      SUBNODEPDA(cnode,sn)    -> to access subnode PDA for cnodeid/subnode
+ *      sn_nodepda   - to access node PDA for the node on which code is running
+ *      NODEPDA(cnodeid)   - to access node PDA for cnodeid
  */
 
-#define nodepda         pda->p_nodepda          /* Ptr to this node's PDA */
-#define NODEPDA(cnode)          (nodepda->pernode_pdaindr[cnode])
+DECLARE_PER_CPU(struct nodepda_s *, __sn_nodepda);
+#define sn_nodepda              (__get_cpu_var(__sn_nodepda))
+#define NODEPDA(cnodeid)        (sn_nodepda->pernode_pdaindr[cnodeid])
 
 /*
  * Check if given a compact node id the corresponding node has all the
  * cpus disabled. 
  */
-#define is_headless_node(cnode)         (nr_cpus_node(cnode) == 0)
+#define is_headless_node(cnodeid)       (nr_cpus_node(cnodeid) == 0)
 
 #endif /* _ASM_IA64_SN_NODEPDA_H */