From 71f9cf8fdd72e5f5c3a60f632bd1534fc7996b81 Mon Sep 17 00:00:00 2001 From: Noam Camus Date: Sat, 7 Nov 2015 09:16:19 +0200 Subject: ARC: Mark secondary cpu online only after all HW setup is done In SMP setup, master loops for each_present_cpu calling cpu_up(). For ARC it returns as soon as new cpu's status becomes online, However secondary may still do HW initializing, machine or platform hook level. So turn secondary online only after all HW setup is done. Signed-off-by: Noam Camus Acked-by: Vineet Gupta --- arch/arc/kernel/smp.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c index 6b18134..f183cc6 100644 --- a/arch/arc/kernel/smp.c +++ b/arch/arc/kernel/smp.c @@ -126,11 +126,6 @@ void start_kernel_secondary(void) current->active_mm = mm; cpumask_set_cpu(cpu, mm_cpumask(mm)); - notify_cpu_starting(cpu); - set_cpu_online(cpu, true); - - pr_info("## CPU%u LIVE ##: Executing Code...\n", cpu); - /* Some SMP H/w setup - for each cpu */ if (plat_smp_ops.init_per_cpu) plat_smp_ops.init_per_cpu(cpu); @@ -138,6 +133,11 @@ void start_kernel_secondary(void) if (machine_desc->init_per_cpu) machine_desc->init_per_cpu(cpu); + notify_cpu_starting(cpu); + set_cpu_online(cpu, true); + + pr_info("## CPU%u LIVE ##: Executing Code...\n", cpu); + local_irq_enable(); preempt_disable(); cpu_startup_entry(CPUHP_AP_ONLINE_IDLE); -- cgit v1.1