ARM: 7124/1: smp: Add a localtimer handler callable from C code

In order to be able to handle localtimer directly from C code instead of
assembly code, introduce handle_local_timer(), which is modeled after
handle_IRQ().

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/arch/arm/include/asm/localtimer.h b/arch/arm/include/asm/localtimer.h
index 080d74f8128d4a4a5feb10b579aa42f5d757439f..3306f281333c36760f36654752943526e7ce9339 100644 (file)
--- a/arch/arm/include/asm/localtimer.h
+++ b/arch/arm/include/asm/localtimer.h
@@ -22,6 +22,10 @@ void percpu_timer_setup(void);
  */
 asmlinkage void do_local_timer(struct pt_regs *);
 
+/*
+ * Called from C code
+ */
+void handle_local_timer(struct pt_regs *);
 
 #ifdef CONFIG_LOCAL_TIMERS
 

diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 2e49f1883fe98844f0170df01a6ec8faaad37758..0949007d09a8ebd60733dafd83a7162d40b345fa 100644 (file)
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -479,6 +479,11 @@ static void ipi_timer(void)
 
 #ifdef CONFIG_LOCAL_TIMERS
 asmlinkage void __exception_irq_entry do_local_timer(struct pt_regs *regs)
+{
+       handle_local_timer(regs);
+}
+
+void handle_local_timer(struct pt_regs *regs)
 {
        struct pt_regs *old_regs = set_irq_regs(regs);
        int cpu = smp_processor_id();