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Diffstat (limited to 'arch/mips/kernel/smp.c')
-rw-r--r--arch/mips/kernel/smp.c17
1 files changed, 14 insertions, 3 deletions
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 78d171bfa331..298f82fe8440 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -38,6 +38,10 @@
#include <asm/mmu_context.h>
#include <asm/smp.h>
+#ifdef CONFIG_MIPS_MT_SMTC
+#include <asm/mipsmtregs.h>
+#endif /* CONFIG_MIPS_MT_SMTC */
+
cpumask_t phys_cpu_present_map; /* Bitmask of available CPUs */
volatile cpumask_t cpu_callin_map; /* Bitmask of started secondaries */
cpumask_t cpu_online_map; /* Bitmask of currently online CPUs */
@@ -85,6 +89,10 @@ asmlinkage void start_secondary(void)
{
unsigned int cpu;
+#ifdef CONFIG_MIPS_MT_SMTC
+ /* Only do cpu_probe for first TC of CPU */
+ if ((read_c0_tcbind() & TCBIND_CURTC) == 0)
+#endif /* CONFIG_MIPS_MT_SMTC */
cpu_probe();
cpu_report();
per_cpu_trap_init();
@@ -179,11 +187,13 @@ int smp_call_function (void (*func) (void *info), void *info, int retry,
if (wait)
while (atomic_read(&data.finished) != cpus)
barrier();
+ call_data = NULL;
spin_unlock(&smp_call_lock);
return 0;
}
+
void smp_call_function_interrupt(void)
{
void (*func) (void *info) = call_data->func;
@@ -237,6 +247,9 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
current_thread_info()->cpu = 0;
smp_tune_scheduling();
plat_prepare_cpus(max_cpus);
+#ifndef CONFIG_HOTPLUG_CPU
+ cpu_present_map = cpu_possible_map;
+#endif
}
/* preload SMP state for boot cpu */
@@ -432,7 +445,7 @@ static int __init topology_init(void)
int cpu;
int ret;
- for_each_cpu(cpu) {
+ for_each_present_cpu(cpu) {
ret = register_cpu(&per_cpu(cpu_devices, cpu), cpu, NULL);
if (ret)
printk(KERN_WARNING "topology_init: register_cpu %d "
@@ -446,5 +459,3 @@ subsys_initcall(topology_init);
EXPORT_SYMBOL(flush_tlb_page);
EXPORT_SYMBOL(flush_tlb_one);
-EXPORT_SYMBOL(cpu_data);
-EXPORT_SYMBOL(synchronize_irq);