[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, 7 insertions, 0 deletions

diff --git a/include/asm-ia64/processor.h b/include/asm-ia64/processor.h
index 983798ec1791..9e1ba8b7fb68 100644
--- a/include/asm-ia64/processor.h
+++ b/include/asm-ia64/processor.h
@@ -148,6 +148,13 @@ struct cpuinfo_ia64 {
 #ifdef CONFIG_SMP
         __u64 loops_per_jiffy;
         int cpu;
+        __u32 socket_id;        /* physical processor socket id */
+        __u16 core_id;          /* core id */
+        __u16 thread_id;        /* thread id */
+        __u16 num_log;          /* Total number of logical processors on
+                                 * this socket that were successfully booted */
+        __u8  cores_per_socket; /* Cores per processor socket */
+        __u8  threads_per_core; /* Threads per core */
 #endif
 
         /* CPUID-derived information: */