[ARM SMP] Add missing SMP timer handling for realview

Until we have local timer support, we need to broadcast the
timer interrupt to the other CPUs.  Also, add the missing
smp_send_timer() prototype to asm/smp.h

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2 files changed, 10 insertions, 0 deletions

diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c
index 482eb512ebe8..4ea60d8b6e36 100644
--- a/arch/arm/mach-realview/core.c
+++ b/arch/arm/mach-realview/core.c
@@ -550,6 +550,11 @@ static irqreturn_t realview_timer_interrupt(int irq, void *dev_id, struct pt_reg
 
         timer_tick(regs);
 
+#ifdef CONFIG_SMP
+        smp_send_timer();
+        update_process_times(user_mode(regs));
+#endif
+
         write_sequnlock(&xtime_lock);
 
         return IRQ_HANDLED;
diff --git a/include/asm-arm/smp.h b/include/asm-arm/smp.h
index 551cd3c3093c..21d1723c03e1 100644
--- a/include/asm-arm/smp.h
+++ b/include/asm-arm/smp.h
@@ -47,6 +47,11 @@ extern void smp_store_cpu_info(unsigned int cpuid);
 extern void smp_cross_call(cpumask_t callmap);
 
 /*
+ * Broadcast a timer interrupt to the other CPUs.
+ */
+extern void smp_send_timer(void);
+
+/*
  * Boot a secondary CPU, and assign it the specified idle task.
  * This also gives us the initial stack to use for this CPU.
  */