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| author | Fenghua Yu <fenghua.yu@intel.com> | 2012-11-13 11:32:41 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-11-14 09:39:48 -0800 |
| commit | 30106c174311b8cfaaa3186c7f6f9c36c62d17da (patch) | |
| tree | 58a0c368ebd8ccc48dddc9b723ed1296b9e741db /arch/x86/include/asm/smp.h | |
| parent | 4d25031a81d3cd32edc00de6596db76cc4010685 (diff) | |
| download | linux-0-day-30106c174311b8cfaaa3186c7f6f9c36c62d17da.tar.gz linux-0-day-30106c174311b8cfaaa3186c7f6f9c36c62d17da.tar.xz | |
x86, hotplug: Support functions for CPU0 online/offline
Add smp_store_boot_cpu_info() to store cpu info for BSP during boot time.
Now smp_store_cpu_info() stores cpu info for bringing up BSP or AP after
it's offline.
Continue to online CPU0 in native_cpu_up().
Continue to offline CPU0 in native_cpu_disable().
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1352835171-3958-5-git-send-email-fenghua.yu@intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/include/asm/smp.h')
| -rw-r--r-- | arch/x86/include/asm/smp.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h index 4f19a15260373..b073aaea747c2 100644 --- a/arch/x86/include/asm/smp.h +++ b/arch/x86/include/asm/smp.h @@ -166,6 +166,7 @@ void native_send_call_func_ipi(const struct cpumask *mask); void native_send_call_func_single_ipi(int cpu); void x86_idle_thread_init(unsigned int cpu, struct task_struct *idle); +void smp_store_boot_cpu_info(void); void smp_store_cpu_info(int id); #define cpu_physical_id(cpu) per_cpu(x86_cpu_to_apicid, cpu) |