Merge ../linux-2.6-x86

[safe/jmp/linux-2.6] / arch / x86 / kernel / irq_64.c

diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
index 21f53b9..27f2307 100644 (file)
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -18,28 +18,6 @@
 #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:
@@ -65,135 +43,6 @@ static inline void stack_overflow_check(struct pt_regs *regs)
 #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;
-
-       entries = nr_irqs - 1;
-       i = *(loff_t *) v;
-       if (i == nr_irqs)
-               tail = 1;
-       else
-               desc = irq_to_desc(i);
-
-       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
  * handlers).
@@ -245,6 +94,8 @@ void fixup_irqs(cpumask_t map)
                int break_affinity = 0;
                int set_affinity = 1;
 
+               if (!desc)
+                       continue;
                if (irq == 2)
                        continue;
 
@@ -267,7 +118,7 @@ void fixup_irqs(cpumask_t map)
                        desc->chip->mask(irq);
 
                if (desc->chip->set_affinity)
-                       desc->chip->set_affinity(irq, mask);
+                       desc->chip->set_affinity(irq, &mask);
                else if (!(warned++))
                        set_affinity = 0;