[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>
diff --git a/include/asm-ia64/smp.h b/include/asm-ia64/smp.h
index c4a227a..3ba1a06 100644
--- a/include/asm-ia64/smp.h
+++ b/include/asm-ia64/smp.h
@@ -56,6 +56,10 @@
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 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