MN10300: Generic time support
Implement generic time support for MN10300.
Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
diff --git a/arch/mn10300/kernel/smp.c b/arch/mn10300/kernel/smp.c
index b80234c..0dcd1c6 100644
--- a/arch/mn10300/kernel/smp.c
+++ b/arch/mn10300/kernel/smp.c
@@ -126,7 +126,6 @@
static irqreturn_t smp_reschedule_interrupt(int irq, void *dev_id);
static irqreturn_t smp_call_function_interrupt(int irq, void *dev_id);
-static irqreturn_t smp_ipi_timer_interrupt(int irq, void *dev_id);
static struct irqaction reschedule_ipi = {
.handler = smp_reschedule_interrupt,
@@ -136,11 +135,15 @@
.handler = smp_call_function_interrupt,
.name = "smp call function IPI"
};
+
+#if !defined(CONFIG_GENERIC_CLOCKEVENTS) || defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
+static irqreturn_t smp_ipi_timer_interrupt(int irq, void *dev_id);
static struct irqaction local_timer_ipi = {
.handler = smp_ipi_timer_interrupt,
.flags = IRQF_DISABLED,
.name = "smp local timer IPI"
};
+#endif
/**
* init_ipi - Initialise the IPI mechanism
@@ -165,11 +168,14 @@
mn10300_ipi_enable(CALL_FUNC_SINGLE_IPI);
/* set up the local timer IPI */
+#if !defined(CONFIG_GENERIC_CLOCKEVENTS) || \
+ defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
set_irq_chip_and_handler(LOCAL_TIMER_IPI,
&mn10300_ipi_type, handle_percpu_irq);
setup_irq(LOCAL_TIMER_IPI, &local_timer_ipi);
set_intr_level(LOCAL_TIMER_IPI, LOCAL_TIMER_GxICR_LV);
mn10300_ipi_enable(LOCAL_TIMER_IPI);
+#endif
#ifdef CONFIG_MN10300_CACHE_ENABLED
/* set up the cache flush IPI */
@@ -505,6 +511,8 @@
}
}
+#if !defined(CONFIG_GENERIC_CLOCKEVENTS) || \
+ defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
/**
* smp_ipi_timer_interrupt - Local timer IPI handler
* @irq: The interrupt number.
@@ -516,6 +524,7 @@
{
return local_timer_interrupt();
}
+#endif
void __init smp_init_cpus(void)
{
@@ -620,7 +629,6 @@
int __init start_secondary(void *unused)
{
smp_cpu_init();
-
smp_callin();
while (!cpu_isset(smp_processor_id(), smp_commenced_mask))
cpu_relax();
@@ -629,6 +637,9 @@
preempt_disable();
smp_online();
+#ifdef CONFIG_GENERIC_CLOCKEVENTS
+ init_clockevents();
+#endif
cpu_idle();
return 0;
}