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-rw-r--r--arch/powerpc/kernel/smp.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 0b47de07302..d387b3937cc 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -269,7 +269,10 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
cpu_callin_map[boot_cpuid] = 1;
if (smp_ops)
- max_cpus = smp_ops->probe();
+ if (smp_ops->probe)
+ max_cpus = smp_ops->probe();
+ else
+ max_cpus = NR_CPUS;
else
max_cpus = 1;
@@ -412,9 +415,8 @@ int __cpuinit __cpu_up(unsigned int cpu)
* CPUs can take much longer to come up in the
* hotplug case. Wait five seconds.
*/
- for (c = 25; c && !cpu_callin_map[cpu]; c--) {
- msleep(200);
- }
+ for (c = 5000; c && !cpu_callin_map[cpu]; c--)
+ msleep(1);
#endif
if (!cpu_callin_map[cpu]) {
@@ -494,7 +496,8 @@ int __devinit start_secondary(void *unused)
preempt_disable();
cpu_callin_map[cpu] = 1;
- smp_ops->setup_cpu(cpu);
+ if (smp_ops->setup_cpu)
+ smp_ops->setup_cpu(cpu);
if (smp_ops->take_timebase)
smp_ops->take_timebase();
@@ -557,7 +560,7 @@ void __init smp_cpus_done(unsigned int max_cpus)
old_mask = current->cpus_allowed;
set_cpus_allowed(current, cpumask_of_cpu(boot_cpuid));
- if (smp_ops)
+ if (smp_ops && smp_ops->setup_cpu)
smp_ops->setup_cpu(boot_cpuid);
set_cpus_allowed(current, old_mask);