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| author | Noam Camus <noamc@ezchip.com> | 2015-11-07 08:16:19 +0100 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2016-05-09 06:02:32 +0200 |
| commit | 71f9cf8fdd72e5f5c3a60f632bd1534fc7996b81 (patch) | |
| tree | a9fccde6d736968655a0db372aa4df2f9e5ba22c /arch/arc/kernel | |
| parent | ARC: rwlock: disable interrupts in !LLSC variant (diff) | |
| download | linux-71f9cf8fdd72e5f5c3a60f632bd1534fc7996b81.tar.xz linux-71f9cf8fdd72e5f5c3a60f632bd1534fc7996b81.zip | |
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>
Diffstat (limited to 'arch/arc/kernel')
| -rw-r--r-- | arch/arc/kernel/smp.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c index 6b1813456336..f183cc648851 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); |