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-rw-r--r--arch/arm64/kernel/smp.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 7cfb92a4ab66..f0a141dd5655 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -114,6 +114,11 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle)
return ret;
}
+static void smp_store_cpu_info(unsigned int cpuid)
+{
+ store_cpu_topology(cpuid);
+}
+
/*
* This is the secondary CPU boot entry. We're using this CPUs
* idle thread stack, but a set of temporary page tables.
@@ -152,6 +157,8 @@ asmlinkage void secondary_start_kernel(void)
*/
notify_cpu_starting(cpu);
+ smp_store_cpu_info(cpu);
+
/*
* OK, now it's safe to let the boot CPU continue. Wait for
* the CPU migration code to notice that the CPU is online
@@ -160,6 +167,7 @@ asmlinkage void secondary_start_kernel(void)
set_cpu_online(cpu, true);
complete(&cpu_running);
+ local_dbg_enable();
local_irq_enable();
local_async_enable();
@@ -390,6 +398,10 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
int err;
unsigned int cpu, ncores = num_possible_cpus();
+ init_cpu_topology();
+
+ smp_store_cpu_info(smp_processor_id());
+
/*
* are we trying to boot more cores than exist?
*/