diff options
Diffstat (limited to 'arch/sparc/kernel/sun4m_irq.c')
| -rw-r--r-- | arch/sparc/kernel/sun4m_irq.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c index 0d3a2d8cb266..87908a5b1223 100644 --- a/arch/sparc/kernel/sun4m_irq.c +++ b/arch/sparc/kernel/sun4m_irq.c @@ -318,9 +318,6 @@ struct sun4m_timer_global { static struct sun4m_timer_global __iomem *timers_global; - -unsigned int lvl14_resolution = (((1000000/HZ) + 1) << 10); - static void sun4m_clear_clock_irq(void) { sbus_readl(&timers_global->l10_limit); @@ -369,10 +366,11 @@ void sun4m_clear_profile_irq(int cpu) static void sun4m_load_profile_irq(int cpu, unsigned int limit) { - sbus_writel(limit, &timers_percpu[cpu]->l14_limit); + unsigned int value = limit ? timer_value(limit) : 0; + sbus_writel(value, &timers_percpu[cpu]->l14_limit); } -static void __init sun4m_init_timers(irq_handler_t counter_fn) +static void __init sun4m_init_timers(void) { struct device_node *dp = of_find_node_by_name(NULL, "counter"); int i, err, len, num_cpu_timers; @@ -402,13 +400,22 @@ static void __init sun4m_init_timers(irq_handler_t counter_fn) /* Every per-cpu timer works in timer mode */ sbus_writel(0x00000000, &timers_global->timer_config); - sbus_writel((((1000000/HZ) + 1) << 10), &timers_global->l10_limit); +#ifdef CONFIG_SMP + sparc_config.cs_period = SBUS_CLOCK_RATE * 2; /* 2 seconds */ + sparc_config.features |= FEAT_L14_ONESHOT; +#else + sparc_config.cs_period = SBUS_CLOCK_RATE / HZ; /* 1/HZ sec */ + sparc_config.features |= FEAT_L10_CLOCKEVENT; +#endif + sparc_config.features |= FEAT_L10_CLOCKSOURCE; + sbus_writel(timer_value(sparc_config.cs_period), + &timers_global->l10_limit); master_l10_counter = &timers_global->l10_count; irq = sun4m_build_device_irq(NULL, SUN4M_TIMER_IRQ); - err = request_irq(irq, counter_fn, IRQF_TIMER, "timer", NULL); + err = request_irq(irq, timer_interrupt, IRQF_TIMER, "timer", NULL); if (err) { printk(KERN_ERR "sun4m_init_timers: Register IRQ error %d.\n", err); @@ -480,6 +487,7 @@ void __init sun4m_init_IRQ(void) sparc_config.init_timers = sun4m_init_timers; sparc_config.build_device_irq = sun4m_build_device_irq; + sparc_config.clock_rate = SBUS_CLOCK_RATE; #ifdef CONFIG_SMP BTFIXUPSET_CALL(set_cpu_int, sun4m_send_ipi, BTFIXUPCALL_NORM); |