Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp

Conflicts:
	litmus/sched_cedf.c

1 files changed, 25 insertions, 58 deletions

diff --git a/arch/alpha/kernel/irq.c b/arch/alpha/kernel/irq.c
index fe912984d9b1..381431a2d6d9 100644
--- a/arch/alpha/kernel/irq.c
+++ b/arch/alpha/kernel/irq.c
@@ -44,10 +44,16 @@ static char irq_user_affinity[NR_IRQS];
 
 int irq_select_affinity(unsigned int irq)
 {
+        struct irq_data *data = irq_get_irq_data(irq);
+        struct irq_chip *chip;
         static int last_cpu;
         int cpu = last_cpu + 1;
 
-        if (!irq_desc[irq].chip->set_affinity || irq_user_affinity[irq])
+        if (!data)
+                return 1;
+        chip = irq_data_get_irq_chip(data);
+
+        if (!chip->irq_set_affinity || irq_user_affinity[irq])
                 return 1;
 
         while (!cpu_possible(cpu) ||
@@ -55,68 +61,27 @@ int irq_select_affinity(unsigned int irq)
                 cpu = (cpu < (NR_CPUS-1) ? cpu + 1 : 0);
         last_cpu = cpu;
 
-        cpumask_copy(irq_desc[irq].affinity, cpumask_of(cpu));
-        irq_desc[irq].chip->set_affinity(irq, cpumask_of(cpu));
+        cpumask_copy(data->affinity, cpumask_of(cpu));
+        chip->irq_set_affinity(data, cpumask_of(cpu), false);
         return 0;
 }
 #endif /* CONFIG_SMP */
 
-int
-show_interrupts(struct seq_file *p, void *v)
+int arch_show_interrupts(struct seq_file *p, int prec)
 {
         int j;
-        int irq = *(loff_t *) v;
-        struct irqaction * action;
-        unsigned long flags;
-
-#ifdef CONFIG_SMP
-        if (irq == 0) {
-                seq_puts(p, "           ");
-                for_each_online_cpu(j)
-                        seq_printf(p, "CPU%d       ", j);
-                seq_putc(p, '\n');
-        }
-#endif
 
-        if (irq < ACTUAL_NR_IRQS) {
-                raw_spin_lock_irqsave(&irq_desc[irq].lock, flags);
-                action = irq_desc[irq].action;
-                if (!action) 
-                        goto unlock;
-                seq_printf(p, "%3d: ", irq);
-#ifndef CONFIG_SMP
-                seq_printf(p, "%10u ", kstat_irqs(irq));
-#else
-                for_each_online_cpu(j)
-                        seq_printf(p, "%10u ", kstat_irqs_cpu(irq, j));
-#endif
-                seq_printf(p, " %14s", irq_desc[irq].chip->name);
-                seq_printf(p, "  %c%s",
-                        (action->flags & IRQF_DISABLED)?'+':' ',
-                        action->name);
-
-                for (action=action->next; action; action = action->next) {
-                        seq_printf(p, ", %c%s",
-                                  (action->flags & IRQF_DISABLED)?'+':' ',
-                                   action->name);
-                }
-
-                seq_putc(p, '\n');
-unlock:
-                raw_spin_unlock_irqrestore(&irq_desc[irq].lock, flags);
-        } else if (irq == ACTUAL_NR_IRQS) {
 #ifdef CONFIG_SMP
-                seq_puts(p, "IPI: ");
-                for_each_online_cpu(j)
-                        seq_printf(p, "%10lu ", cpu_data[j].ipi_count);
-                seq_putc(p, '\n');
+        seq_puts(p, "IPI: ");
+        for_each_online_cpu(j)
+                seq_printf(p, "%10lu ", cpu_data[j].ipi_count);
+        seq_putc(p, '\n');
 #endif
-                seq_puts(p, "PMI: ");
-                for_each_online_cpu(j)
-                        seq_printf(p, "%10lu ", per_cpu(irq_pmi_count, j));
-                seq_puts(p, "          Performance Monitoring\n");
-                seq_printf(p, "ERR: %10lu\n", irq_err_count);
-        }
+        seq_puts(p, "PMI: ");
+        for_each_online_cpu(j)
+                seq_printf(p, "%10lu ", per_cpu(irq_pmi_count, j));
+        seq_puts(p, "          Performance Monitoring\n");
+        seq_printf(p, "ERR: %10lu\n", irq_err_count);
         return 0;
 }
 
@@ -142,8 +107,10 @@ handle_irq(int irq)
          * handled by some other CPU. (or is disabled)
          */
         static unsigned int illegal_count=0;
+        struct irq_desc *desc = irq_to_desc(irq);
         
-        if ((unsigned) irq > ACTUAL_NR_IRQS && illegal_count < MAX_ILLEGAL_IRQS ) {
+        if (!desc || ((unsigned) irq > ACTUAL_NR_IRQS &&
+            illegal_count < MAX_ILLEGAL_IRQS)) {
                 irq_err_count++;
                 illegal_count++;
                 printk(KERN_CRIT "device_interrupt: invalid interrupt %d\n",
@@ -151,14 +118,14 @@ handle_irq(int irq)
                 return;
         }
 
-        irq_enter();
         /*
-         * __do_IRQ() must be called with IPL_MAX. Note that we do not
+         * From here we must proceed with IPL_MAX. Note that we do not
          * explicitly enable interrupts afterwards - some MILO PALcode
          * (namely LX164 one) seems to have severe problems with RTI
          * at IPL 0.
          */
         local_irq_disable();
-        __do_IRQ(irq);
+        irq_enter();
+        generic_handle_irq_desc(irq, desc);
         irq_exit();
 }