#include <asm/idle.h>
#include <asm/smp.h>
-atomic_t irq_err_count;
-
-/*
- * 'what should we do if we get a hw irq event on an illegal vector'.
- * each architecture has to answer this themselves.
- */
-void ack_bad_irq(unsigned int irq)
-{
- printk(KERN_WARNING "unexpected IRQ trap at vector %02x\n", irq);
- /*
- * Currently unexpected vectors happen only on SMP and APIC.
- * We _must_ ack these because every local APIC has only N
- * irq slots per priority level, and a 'hanging, unacked' IRQ
- * holds up an irq slot - in excessive cases (when multiple
- * unexpected vectors occur) that might lock up the APIC
- * completely.
- * But don't ack when the APIC is disabled. -AK
- */
- if (!disable_apic)
- ack_APIC_irq();
-}
-
#ifdef CONFIG_DEBUG_STACKOVERFLOW
/*
* Probabilistic stack overflow check:
}
#endif
-/*
- * Generic, controller-independent functions:
- */
-
-int show_interrupts(struct seq_file *p, void *v)
-{
- int i, j;
- struct irqaction * action;
- unsigned long flags;
- unsigned int entries;
- struct irq_desc *desc = NULL;
- int tail = 0;
-
-#ifdef CONFIG_HAVE_SPARSE_IRQ
- desc = (struct irq_desc *)v;
- entries = -1U;
- i = desc->irq;
- if (!desc->next)
- tail = 1;
-#else
- entries = nr_irqs - 1;
- i = *(loff_t *) v;
- if (i == nr_irqs)
- tail = 1;
- else
- desc = irq_to_desc(i);
-#endif
-
- if (i == 0) {
- seq_printf(p, " ");
- for_each_online_cpu(j)
- seq_printf(p, "CPU%-8d",j);
- seq_putc(p, '\n');
- }
-
- if (i <= entries) {
- unsigned any_count = 0;
-
- spin_lock_irqsave(&desc->lock, flags);
-#ifndef CONFIG_SMP
- any_count = kstat_irqs(i);
-#else
- for_each_online_cpu(j)
- any_count |= kstat_irqs_cpu(i, j);
-#endif
- action = desc->action;
- if (!action && !any_count)
- goto skip;
- seq_printf(p, "%3d: ", i);
-#ifndef CONFIG_SMP
- seq_printf(p, "%10u ", kstat_irqs(i));
-#else
- for_each_online_cpu(j)
- seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
-#endif
- seq_printf(p, " %8s", desc->chip->name);
- seq_printf(p, "-%-8s", desc->name);
-
- if (action) {
- seq_printf(p, " %s", action->name);
- while ((action = action->next) != NULL)
- seq_printf(p, ", %s", action->name);
- }
- seq_putc(p, '\n');
-skip:
- spin_unlock_irqrestore(&desc->lock, flags);
- }
-
- if (tail) {
- seq_printf(p, "NMI: ");
- for_each_online_cpu(j)
- seq_printf(p, "%10u ", cpu_pda(j)->__nmi_count);
- seq_printf(p, " Non-maskable interrupts\n");
- seq_printf(p, "LOC: ");
- for_each_online_cpu(j)
- seq_printf(p, "%10u ", cpu_pda(j)->apic_timer_irqs);
- seq_printf(p, " Local timer interrupts\n");
-#ifdef CONFIG_SMP
- seq_printf(p, "RES: ");
- for_each_online_cpu(j)
- seq_printf(p, "%10u ", cpu_pda(j)->irq_resched_count);
- seq_printf(p, " Rescheduling interrupts\n");
- seq_printf(p, "CAL: ");
- for_each_online_cpu(j)
- seq_printf(p, "%10u ", cpu_pda(j)->irq_call_count);
- seq_printf(p, " Function call interrupts\n");
- seq_printf(p, "TLB: ");
- for_each_online_cpu(j)
- seq_printf(p, "%10u ", cpu_pda(j)->irq_tlb_count);
- seq_printf(p, " TLB shootdowns\n");
-#endif
-#ifdef CONFIG_X86_MCE
- seq_printf(p, "TRM: ");
- for_each_online_cpu(j)
- seq_printf(p, "%10u ", cpu_pda(j)->irq_thermal_count);
- seq_printf(p, " Thermal event interrupts\n");
- seq_printf(p, "THR: ");
- for_each_online_cpu(j)
- seq_printf(p, "%10u ", cpu_pda(j)->irq_threshold_count);
- seq_printf(p, " Threshold APIC interrupts\n");
-#endif
- seq_printf(p, "SPU: ");
- for_each_online_cpu(j)
- seq_printf(p, "%10u ", cpu_pda(j)->irq_spurious_count);
- seq_printf(p, " Spurious interrupts\n");
- seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count));
- }
-
- return 0;
-}
-
-/*
- * /proc/stat helpers
- */
-u64 arch_irq_stat_cpu(unsigned int cpu)
-{
- u64 sum = cpu_pda(cpu)->__nmi_count;
-
- sum += cpu_pda(cpu)->apic_timer_irqs;
-#ifdef CONFIG_SMP
- sum += cpu_pda(cpu)->irq_resched_count;
- sum += cpu_pda(cpu)->irq_call_count;
- sum += cpu_pda(cpu)->irq_tlb_count;
-#endif
-#ifdef CONFIG_X86_MCE
- sum += cpu_pda(cpu)->irq_thermal_count;
- sum += cpu_pda(cpu)->irq_threshold_count;
-#endif
- sum += cpu_pda(cpu)->irq_spurious_count;
- return sum;
-}
-
-u64 arch_irq_stat(void)
-{
- return atomic_read(&irq_err_count);
-}
-
/*
* do_IRQ handles all normal device IRQ's (the special
* SMP cross-CPU interrupts have their own specific