X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fia64%2Fkernel%2Firq.c;h=9c72ea3f6432d115ca32090d0c8bd9c8365d5c07;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=28f2aadc38d00ed2318be5690648b563d9044776;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/arch/ia64/kernel/irq.c b/arch/ia64/kernel/irq.c
index 28f2aadc3..9c72ea3f6 100644
--- a/arch/ia64/kernel/irq.c
+++ b/arch/ia64/kernel/irq.c
@@ -57,9 +57,9 @@ int show_interrupts(struct seq_file *p, void *v)
 
 	if (i == 0) {
 		seq_printf(p, "           ");
-		for (j=0; j<NR_CPUS; j++)
-			if (cpu_online(j))
-				seq_printf(p, "CPU%d       ",j);
+		for_each_online_cpu(j) {
+			seq_printf(p, "CPU%d       ",j);
+		}
 		seq_putc(p, '\n');
 	}
 
@@ -72,9 +72,9 @@ int show_interrupts(struct seq_file *p, void *v)
 #ifndef CONFIG_SMP
 		seq_printf(p, "%10u ", kstat_irqs(i));
 #else
-		for (j = 0; j < NR_CPUS; j++)
-			if (cpu_online(j))
-				seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
+		for_each_online_cpu(j) {
+			seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
+		}
 #endif
 		seq_printf(p, " %14s", irq_desc[i].handler->typename);
 		seq_printf(p, "  %s", action->name);
@@ -91,23 +91,8 @@ skip:
 }
 
 #ifdef CONFIG_SMP
-/*
- * This is updated when the user sets irq affinity via /proc
- */
-static cpumask_t __cacheline_aligned pending_irq_cpumask[NR_IRQS];
-static unsigned long pending_irq_redir[BITS_TO_LONGS(NR_IRQS)];
-
 static char irq_redir [NR_IRQS]; // = { [0 ... NR_IRQS-1] = 1 };
 
-/*
- * Arch specific routine for deferred write to iosapic rte to reprogram
- * intr destination.
- */
-void proc_set_irq_affinity(unsigned int irq, cpumask_t mask_val)
-{
-	pending_irq_cpumask[irq] = mask_val;
-}
-
 void set_irq_affinity_info (unsigned int irq, int hwid, int redir)
 {
 	cpumask_t mask = CPU_MASK_NONE;
@@ -119,29 +104,6 @@ void set_irq_affinity_info (unsigned int irq, int hwid, int redir)
 		irq_redir[irq] = (char) (redir & 0xff);
 	}
 }
-
-
-void move_irq(int irq)
-{
-	/* note - we hold desc->lock */
-	cpumask_t tmp;
-	irq_desc_t *desc = irq_descp(irq);
-	int redir = test_bit(irq, pending_irq_redir);
-
-	if (unlikely(!desc->handler->set_affinity))
-		return;
-
-	if (!cpus_empty(pending_irq_cpumask[irq])) {
-		cpus_and(tmp, pending_irq_cpumask[irq], cpu_online_map);
-		if (unlikely(!cpus_empty(tmp))) {
-			desc->handler->set_affinity(irq | (redir ? IA64_IRQ_REDIRECTED : 0),
-						    pending_irq_cpumask[irq]);
-		}
-		cpus_clear(pending_irq_cpumask[irq]);
-	}
-}
-
-
 #endif /* CONFIG_SMP */
 
 #ifdef CONFIG_HOTPLUG_CPU
@@ -200,8 +162,19 @@ void fixup_irqs(void)
 {
 	unsigned int irq;
 	extern void ia64_process_pending_intr(void);
+	extern void ia64_disable_timer(void);
+	extern volatile int time_keeper_id;
+
+	ia64_disable_timer();
+
+	/*
+	 * Find a new timesync master
+	 */
+	if (smp_processor_id() == time_keeper_id) {
+		time_keeper_id = first_cpu(cpu_online_map);
+		printk ("CPU %d is now promoted to time-keeper master\n", time_keeper_id);
+	}
 
-	ia64_set_itv(1<<16);
 	/*
 	 * Phase 1: Locate irq's bound to this cpu and
 	 * relocate them for cpu removal.