From a00eef69f192587ba1384b2cda9ada68f961fcbe Mon Sep 17 00:00:00 2001 From: Vineet Gupta Date: Tue, 24 Jul 2012 19:14:55 +0530 Subject: [PATCH] ARC: SMP resurrect #19: clockevent routines rename - nothing semantical Signed-off-by: Vineet Gupta --- arch/arc/kernel/process.c | 2 ++ arch/arc/kernel/time.c | 23 ++++++++++++----------- 2 files changed, 14 insertions(+), 11 deletions(-) diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c index 0f54790de4d18d..518c34a908c3d2 100755 --- a/arch/arc/kernel/process.c +++ b/arch/arc/kernel/process.c @@ -50,6 +50,8 @@ static inline void arch_idle(void) void cpu_idle(void) { + /* Since we SLEEP in idle loop, TIF_POLLING_NRFLAG can't be set */ + /* endless idle loop with no priority at all */ while (1) { tick_nohz_stop_sched_tick(1); diff --git a/arch/arc/kernel/time.c b/arch/arc/kernel/time.c index e13890c1e3114c..a0a13821fb3950 100755 --- a/arch/arc/kernel/time.c +++ b/arch/arc/kernel/time.c @@ -48,7 +48,7 @@ /* * Arm the timer to interrupt after @limit cycles */ -static void arc_timer0_setup_event(unsigned int limit) +static void arc_periodic_timer_setup(unsigned int limit) { /* setup start and end markers */ write_aux_reg(ARC_REG_TIMER0_LIMIT, limit); @@ -63,7 +63,7 @@ static void arc_timer0_setup_event(unsigned int limit) /* * Acknowledge the interrupt & enable/disable the interrupt */ -static void arc_timer0_ack_event(unsigned int irq_reenable) +static void arc_periodic_timer_ack(unsigned int irq_reenable) { /* 1. Ack the interrupt by writing to CTRL reg. * Any write will cause intr to be ack, however it has to be one of @@ -122,19 +122,20 @@ void __cpuinit arc_clocksource_init(void) /********** Clock Event Device *********/ -static int arc_next_event(unsigned long delta, struct clock_event_device *dev) +static int arc_clkevent_set_next_event(unsigned long delta, + struct clock_event_device *dev) { - arc_timer0_setup_event(delta); + arc_periodic_timer_setup(delta); return 0; } -static void arc_set_mode(enum clock_event_mode mode, - struct clock_event_device *dev) +static void arc_clkevent_set_mode(enum clock_event_mode mode, + struct clock_event_device *dev) { pr_info("Device [%s] clockevent mode now [%d]\n", dev->name, mode); switch (mode) { case CLOCK_EVT_MODE_PERIODIC: - arc_timer0_setup_event(CONFIG_ARC_PLAT_CLK / HZ); + arc_periodic_timer_setup(CONFIG_ARC_PLAT_CLK / HZ); break; case CLOCK_EVT_MODE_ONESHOT: break; @@ -150,9 +151,9 @@ static DEFINE_PER_CPU(struct clock_event_device, arc_clockevent_device) = { .features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC, .mode = CLOCK_EVT_MODE_UNUSED, .rating = 300, - .irq = TIMER0_INT, - .set_next_event = arc_next_event, - .set_mode = arc_set_mode, + .irq = TIMER0_INT, /* hardwired, no need for resources */ + .set_next_event = arc_clkevent_set_next_event, + .set_mode = arc_clkevent_set_mode, }; static irqreturn_t timer_irq_handler(int irq, void *dev_id); @@ -169,7 +170,7 @@ irqreturn_t timer_irq_handler(int irq, void *dev_id) unsigned int cpu = smp_processor_id(); struct clock_event_device *evt = &per_cpu(arc_clockevent_device, cpu); - arc_timer0_ack_event(evt->mode == CLOCK_EVT_MODE_PERIODIC); + arc_periodic_timer_ack(evt->mode == CLOCK_EVT_MODE_PERIODIC); evt->event_handler(evt); return IRQ_HANDLED; }