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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 <noamc@ezchip.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
This commit is contained in:
Noam Camus 2015-11-07 09:16:19 +02:00 committed by Vineet Gupta
parent 2a1021fce8
commit 71f9cf8fdd
1 changed files with 5 additions and 5 deletions
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10
arch/arc/kernel/smp.c
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@ -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);