openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

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>
This commit is contained in:
Shawn Guo 2011-10-06 15:19:14 +01:00 committed by Russell King
parent 0b5a1b95dc
commit 0af8aa0069
2 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm/include/asm/localtimer.h
View File

@ -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

5
arch/arm/kernel/smp.c
View File

@ -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();