diff options
Diffstat (limited to 'arch/arm/kernel/irq.c')
-rw-r--r-- | arch/arm/kernel/irq.c | 51 |
1 files changed, 33 insertions, 18 deletions
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c index 36ad3be4692a..28536e352deb 100644 --- a/arch/arm/kernel/irq.c +++ b/arch/arm/kernel/irq.c @@ -35,8 +35,10 @@ #include <linux/list.h> #include <linux/kallsyms.h> #include <linux/proc_fs.h> +#include <linux/ftrace.h> #include <asm/system.h> +#include <asm/mach/arch.h> #include <asm/mach/irq.h> #include <asm/mach/time.h> @@ -47,8 +49,6 @@ #define irq_finish(irq) do { } while (0) #endif -unsigned int arch_nr_irqs; -void (*init_arch_irq)(void) __initdata = NULL; unsigned long irq_err_count; int show_interrupts(struct seq_file *p, void *v) @@ -57,11 +57,20 @@ int show_interrupts(struct seq_file *p, void *v) struct irq_desc *desc; struct irqaction * action; unsigned long flags; + int prec, n; + + for (prec = 3, n = 1000; prec < 10 && n <= nr_irqs; prec++) + n *= 10; + +#ifdef CONFIG_SMP + if (prec < 4) + prec = 4; +#endif if (i == 0) { char cpuname[12]; - seq_printf(p, " "); + seq_printf(p, "%*s ", prec, ""); for_each_present_cpu(cpu) { sprintf(cpuname, "CPU%d", cpu); seq_printf(p, " %10s", cpuname); @@ -76,10 +85,10 @@ int show_interrupts(struct seq_file *p, void *v) if (!action) goto unlock; - seq_printf(p, "%3d: ", i); + seq_printf(p, "%*d: ", prec, i); for_each_present_cpu(cpu) seq_printf(p, "%10u ", kstat_irqs_cpu(i, cpu)); - seq_printf(p, " %10s", desc->chip->name ? : "-"); + seq_printf(p, " %10s", desc->irq_data.chip->name ? : "-"); seq_printf(p, " %s", action->name); for (action = action->next; action; action = action->next) seq_printf(p, ", %s", action->name); @@ -89,13 +98,15 @@ unlock: raw_spin_unlock_irqrestore(&desc->lock, flags); } else if (i == nr_irqs) { #ifdef CONFIG_FIQ - show_fiq_list(p, v); + show_fiq_list(p, prec); #endif #ifdef CONFIG_SMP - show_ipi_list(p); - show_local_irqs(p); + show_ipi_list(p, prec); +#endif +#ifdef CONFIG_LOCAL_TIMERS + show_local_irqs(p, prec); #endif - seq_printf(p, "Err: %10lu\n", irq_err_count); + seq_printf(p, "%*s: %10lu\n", prec, "Err", irq_err_count); } return 0; } @@ -105,7 +116,8 @@ unlock: * come via this function. Instead, they should provide their * own 'handler' */ -asmlinkage void __exception asm_do_IRQ(unsigned int irq, struct pt_regs *regs) +asmlinkage void __exception_irq_entry +asm_do_IRQ(unsigned int irq, struct pt_regs *regs) { struct pt_regs *old_regs = set_irq_regs(regs); @@ -154,13 +166,13 @@ void set_irq_flags(unsigned int irq, unsigned int iflags) void __init init_IRQ(void) { - init_arch_irq(); + machine_desc->init_irq(); } #ifdef CONFIG_SPARSE_IRQ int __init arch_probe_nr_irqs(void) { - nr_irqs = arch_nr_irqs ? arch_nr_irqs : NR_IRQS; + nr_irqs = machine_desc->nr_irqs ? machine_desc->nr_irqs : NR_IRQS; return nr_irqs; } #endif @@ -169,10 +181,11 @@ int __init arch_probe_nr_irqs(void) static void route_irq(struct irq_desc *desc, unsigned int irq, unsigned int cpu) { - pr_debug("IRQ%u: moving from cpu%u to cpu%u\n", irq, desc->node, cpu); + pr_debug("IRQ%u: moving from cpu%u to cpu%u\n", irq, desc->irq_data.node, cpu); raw_spin_lock_irq(&desc->lock); - desc->chip->set_affinity(irq, cpumask_of(cpu)); + desc->irq_data.chip->irq_set_affinity(&desc->irq_data, + cpumask_of(cpu), false); raw_spin_unlock_irq(&desc->lock); } @@ -187,16 +200,18 @@ void migrate_irqs(void) struct irq_desc *desc; for_each_irq_desc(i, desc) { - if (desc->node == cpu) { - unsigned int newcpu = cpumask_any_and(desc->affinity, + struct irq_data *d = &desc->irq_data; + + if (d->node == cpu) { + unsigned int newcpu = cpumask_any_and(d->affinity, cpu_online_mask); if (newcpu >= nr_cpu_ids) { if (printk_ratelimit()) printk(KERN_INFO "IRQ%u no longer affine to CPU%u\n", i, cpu); - cpumask_setall(desc->affinity); - newcpu = cpumask_any_and(desc->affinity, + cpumask_setall(d->affinity); + newcpu = cpumask_any_and(d->affinity, cpu_online_mask); } |