[IA64] multi-core/multi-thread identification

Version 3 - rediffed to apply on top of Ashok's hotplug cpu
patch.  /proc/cpuinfo output in step with x86.

This is an updated MC/MT identification patch based on the 
previous discussions on list. 

Add the Multi-core and Multi-threading detection for IPF.
  - Add new core and threading related fields in /proc/cpuinfo.
		Physical id
		Core id
		Thread id
		Siblings
  - setup the cpu_core_map and cpu_sibling_map appropriately
  - Handles Hot plug CPU
 
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Gordon Jin <gordon.jin@intel.com>
Signed-off-by: Rohit Seth <rohit.seth@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/asm-ia64/smp.h b/include/asm-ia64/smp.h
index c4a227acfeb0..3ba1a061e4ae 100644
--- a/include/asm-ia64/smp.h
+++ b/include/asm-ia64/smp.h
@@ -56,6 +56,10 @@ extern struct smp_boot_data {
 extern char no_int_routing __devinitdata;
 
 extern cpumask_t cpu_online_map;
+extern cpumask_t cpu_core_map[NR_CPUS];
+extern cpumask_t cpu_sibling_map[NR_CPUS];
+extern int smp_num_siblings;
+extern int smp_num_cpucores;
 extern void __iomem *ipi_base_addr;
 extern unsigned char smp_int_redirect;
 
@@ -124,6 +128,7 @@ extern int smp_call_function_single (int cpuid, void (*func) (void *info), void
 extern void smp_send_reschedule (int cpu);
 extern void lock_ipi_calllock(void);
 extern void unlock_ipi_calllock(void);
+extern void identify_siblings (struct cpuinfo_ia64 *);
 
 #else