1 files changed, 23 insertions, 75 deletions

diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c
index 257de1f0692b..a3ee91971129 100644
--- a/arch/sh/kernel/irq.c
+++ b/arch/sh/kernel/irq.c
@@ -13,6 +13,7 @@
 #include <linux/seq_file.h>
 #include <linux/ftrace.h>
 #include <linux/delay.h>
+#include <linux/ratelimit.h>
 #include <asm/processor.h>
 #include <asm/machvec.h>
 #include <asm/uaccess.h>
@@ -34,9 +35,9 @@ void ack_bad_irq(unsigned int irq)
 
 #if defined(CONFIG_PROC_FS)
 /*
- * /proc/interrupts printing:
+ * /proc/interrupts printing for arch specific interrupts
  */
-static int show_other_interrupts(struct seq_file *p, int prec)
+int arch_show_interrupts(struct seq_file *p, int prec)
 {
         int j;
 
@@ -49,58 +50,6 @@ static int show_other_interrupts(struct seq_file *p, int prec)
 
         return 0;
 }
-
-int show_interrupts(struct seq_file *p, void *v)
-{
-        unsigned long flags, any_count = 0;
-        int i = *(loff_t *)v, j, prec;
-        struct irqaction *action;
-        struct irq_desc *desc;
-
-        if (i > nr_irqs)
-                return 0;
-
-        for (prec = 3, j = 1000; prec < 10 && j <= nr_irqs; ++prec)
-                j *= 10;
-
-        if (i == nr_irqs)
-                return show_other_interrupts(p, prec);
-
-        if (i == 0) {
-                seq_printf(p, "%*s", prec + 8, "");
-                for_each_online_cpu(j)
-                        seq_printf(p, "CPU%-8d", j);
-                seq_putc(p, '\n');
-        }
-
-        desc = irq_to_desc(i);
-        if (!desc)
-                return 0;
-
-        raw_spin_lock_irqsave(&desc->lock, flags);
-        for_each_online_cpu(j)
-                any_count |= kstat_irqs_cpu(i, j);
-        action = desc->action;
-        if (!action && !any_count)
-                goto out;
-
-        seq_printf(p, "%*d: ", prec, i);
-        for_each_online_cpu(j)
-                seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
-        seq_printf(p, " %14s", 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');
-out:
-        raw_spin_unlock_irqrestore(&desc->lock, flags);
-        return 0;
-}
 #endif
 
 #ifdef CONFIG_IRQSTACKS
@@ -235,7 +184,7 @@ asmlinkage void do_softirq(void)
                 );
 
                 /*
-                 * Shouldnt happen, we returned above if in_interrupt():
+                 * Shouldn't happen, we returned above if in_interrupt():
                  */
                 WARN_ON_ONCE(softirq_count());
         }
@@ -273,16 +222,12 @@ void __init init_IRQ(void)
 {
         plat_irq_setup();
 
-        /*
-         * Pin any of the legacy IRQ vectors that haven't already been
-         * grabbed by the platform
-         */
-        reserve_irq_legacy();
-
         /* Perform the machine specific initialisation */
         if (sh_mv.mv_init_irq)
                 sh_mv.mv_init_irq();
 
+        intc_finalize();
+
         irq_ctx_init(smp_processor_id());
 }
 
@@ -290,18 +235,21 @@ void __init init_IRQ(void)
 int __init arch_probe_nr_irqs(void)
 {
         nr_irqs = sh_mv.mv_nr_irqs;
-        return 0;
+        return NR_IRQS_LEGACY;
 }
 #endif
 
 #ifdef CONFIG_HOTPLUG_CPU
-static void route_irq(struct irq_desc *desc, unsigned int irq, unsigned int cpu)
+static void route_irq(struct irq_data *data, unsigned int irq, unsigned int cpu)
 {
+        struct irq_desc *desc = irq_to_desc(irq);
+        struct irq_chip *chip = irq_data_get_irq_chip(data);
+
         printk(KERN_INFO "IRQ%u: moving from cpu%u to cpu%u\n",
-               irq, desc->node, cpu);
+               irq, data->node, cpu);
 
         raw_spin_lock_irq(&desc->lock);
-        desc->chip->set_affinity(irq, cpumask_of(cpu));
+        chip->irq_set_affinity(data, cpumask_of(cpu), false);
         raw_spin_unlock_irq(&desc->lock);
 }
 
@@ -312,24 +260,24 @@ static void route_irq(struct irq_desc *desc, unsigned int irq, unsigned int cpu)
  */
 void migrate_irqs(void)
 {
-        struct irq_desc *desc;
         unsigned int irq, cpu = smp_processor_id();
 
-        for_each_irq_desc(irq, desc) {
-                if (desc->node == cpu) {
-                        unsigned int newcpu = cpumask_any_and(desc->affinity,
+        for_each_active_irq(irq) {
+                struct irq_data *data = irq_get_irq_data(irq);
+
+                if (data->node == cpu) {
+                        unsigned int newcpu = cpumask_any_and(data->affinity,
                                                               cpu_online_mask);
                         if (newcpu >= nr_cpu_ids) {
-                                if (printk_ratelimit())
-                                        printk(KERN_INFO "IRQ%u no longer affine to CPU%u\n",
-                                               irq, cpu);
+                                pr_info_ratelimited("IRQ%u no longer affine to CPU%u\n",
+                                                    irq, cpu);
 
-                                cpumask_setall(desc->affinity);
-                                newcpu = cpumask_any_and(desc->affinity,
+                                cpumask_setall(data->affinity);
+                                newcpu = cpumask_any_and(data->affinity,
                                                          cpu_online_mask);
                         }
 
-                        route_irq(desc, irq, newcpu);
+                        route_irq(data, irq, newcpu);
                 }
         }
 }