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Diffstat (limited to 'arch/arm/kernel/smp.c')
-rw-r--r--arch/arm/kernel/smp.c47
1 files changed, 14 insertions, 33 deletions
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 84f4cbf652e5..5f73f7018f50 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -125,18 +125,6 @@ void __init smp_init_cpus(void)
smp_ops.smp_init_cpus();
}
-static void __init platform_smp_prepare_cpus(unsigned int max_cpus)
-{
- if (smp_ops.smp_prepare_cpus)
- smp_ops.smp_prepare_cpus(max_cpus);
-}
-
-static void __cpuinit platform_secondary_init(unsigned int cpu)
-{
- if (smp_ops.smp_secondary_init)
- smp_ops.smp_secondary_init(cpu);
-}
-
int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
{
if (smp_ops.smp_boot_secondary)
@@ -154,12 +142,6 @@ static int platform_cpu_kill(unsigned int cpu)
return 1;
}
-static void platform_cpu_die(unsigned int cpu)
-{
- if (smp_ops.cpu_die)
- smp_ops.cpu_die(cpu);
-}
-
static int platform_cpu_disable(unsigned int cpu)
{
if (smp_ops.cpu_disable)
@@ -257,7 +239,8 @@ void __ref cpu_die(void)
* actual CPU shutdown procedure is at least platform (if not
* CPU) specific.
*/
- platform_cpu_die(cpu);
+ if (smp_ops.cpu_die)
+ smp_ops.cpu_die(cpu);
/*
* Do not return to the idle loop - jump back to the secondary
@@ -324,7 +307,8 @@ asmlinkage void __cpuinit secondary_start_kernel(void)
/*
* Give the platform a chance to do its own initialisation.
*/
- platform_secondary_init(cpu);
+ if (smp_ops.smp_secondary_init)
+ smp_ops.smp_secondary_init(cpu);
notify_cpu_starting(cpu);
@@ -399,8 +383,8 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
/*
* Initialise the present map, which describes the set of CPUs
* actually populated at the present time. A platform should
- * re-initialize the map in platform_smp_prepare_cpus() if
- * present != possible (e.g. physical hotplug).
+ * re-initialize the map in the platforms smp_prepare_cpus()
+ * if present != possible (e.g. physical hotplug).
*/
init_cpu_present(cpu_possible_mask);
@@ -408,7 +392,8 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
* Initialise the SCU if there are more than one CPU
* and let them know where to start.
*/
- platform_smp_prepare_cpus(max_cpus);
+ if (smp_ops.smp_prepare_cpus)
+ smp_ops.smp_prepare_cpus(max_cpus);
}
}
@@ -416,7 +401,8 @@ static void (*smp_cross_call)(const struct cpumask *, unsigned int);
void __init set_smp_cross_call(void (*fn)(const struct cpumask *, unsigned int))
{
- smp_cross_call = fn;
+ if (!smp_cross_call)
+ smp_cross_call = fn;
}
void arch_send_call_function_ipi_mask(const struct cpumask *mask)
@@ -475,14 +461,8 @@ u64 smp_irq_stat_cpu(unsigned int cpu)
*/
static DEFINE_PER_CPU(struct clock_event_device, percpu_clockevent);
-static void ipi_timer(void)
-{
- struct clock_event_device *evt = &__get_cpu_var(percpu_clockevent);
- evt->event_handler(evt);
-}
-
#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
-static void smp_timer_broadcast(const struct cpumask *mask)
+void tick_broadcast(const struct cpumask *mask)
{
smp_cross_call(mask, IPI_TIMER);
}
@@ -530,7 +510,6 @@ static void __cpuinit percpu_timer_setup(void)
struct clock_event_device *evt = &per_cpu(percpu_clockevent, cpu);
evt->cpumask = cpumask_of(cpu);
- evt->broadcast = smp_timer_broadcast;
if (!lt_ops || lt_ops->setup(evt))
broadcast_timer_setup(evt);
@@ -596,11 +575,13 @@ void handle_IPI(int ipinr, struct pt_regs *regs)
case IPI_WAKEUP:
break;
+#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
case IPI_TIMER:
irq_enter();
- ipi_timer();
+ tick_receive_broadcast();
irq_exit();
break;
+#endif
case IPI_RESCHEDULE:
scheduler_ipi();