xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[IA64] multi-core/multi-thread identification

Browse Source 
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>
This commit is contained in:
Suresh Siddha
2005-04-25 13:25:06 -07:00
committed by Tony Luck
parent 6118ec847e
commit e927ecb05e
6 changed files with 365 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
include/asm-ia64/smp.h
View File

@@ -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