diff options
Diffstat (limited to 'arch/arm/mach-realview/localtimer.c')
| -rw-r--r-- | arch/arm/mach-realview/localtimer.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/mach-realview/localtimer.c b/arch/arm/mach-realview/localtimer.c index c7bdf04ab09..529eb6979e6 100644 --- a/arch/arm/mach-realview/localtimer.c +++ b/arch/arm/mach-realview/localtimer.c @@ -14,6 +14,8 @@ #include <linux/device.h> #include <linux/smp.h> #include <linux/jiffies.h> +#include <linux/percpu.h> +#include <linux/clockchips.h> #include <asm/mach/time.h> #include <asm/hardware/arm_twd.h> @@ -25,6 +27,20 @@ #define TWD_BASE(cpu) (__io_address(REALVIEW_TWD_BASE) + \ ((cpu) * REALVIEW_TWD_SIZE)) +static DEFINE_PER_CPU(struct clock_event_device, local_clockevent); + +/* + * Used on SMP for either the local timer or IPI_TIMER + */ +void local_timer_interrupt(void) +{ + struct clock_event_device *clk = &__get_cpu_var(local_clockevent); + + clk->event_handler(clk); +} + +#ifdef CONFIG_LOCAL_TIMERS + static unsigned long mpcore_timer_rate; /* @@ -127,3 +143,26 @@ void __cpuexit local_timer_stop(unsigned int cpu) { __raw_writel(0, TWD_BASE(cpu) + TWD_TIMER_CONTROL); } + +#else /* CONFIG_LOCAL_TIMERS */ + +static void dummy_timer_set_mode(enum clock_event_mode mode, + struct clock_event_device *clk) +{ +} + +void __cpuinit local_timer_setup(unsigned int cpu) +{ + struct clock_event_device *clk = &per_cpu(local_clockevent, cpu); + + clk->name = "dummy_timer"; + clk->features = CLOCK_EVT_FEAT_DUMMY; + clk->rating = 200; + clk->set_mode = dummy_timer_set_mode; + clk->broadcast = smp_timer_broadcast; + clk->cpumask = cpumask_of_cpu(cpu); + + clockevents_register_device(clk); +} + +#endif /* !CONFIG_LOCAL_TIMERS */ |