alpha: add performance monitor interrupt counter

[sfrench/cifs-2.6.git] / arch / alpha / kernel / irq.c

diff --git a/arch/alpha/kernel/irq.c b/arch/alpha/kernel/irq.c
index 7f912ba3d9ad79ee9f333f14dfcd0f3dc7bb59c5..fe912984d9b1fae21657d36e3b35613525986341 100644 (file)
--- a/arch/alpha/kernel/irq.c
+++ b/arch/alpha/kernel/irq.c
@@ -31,6 +31,7 @@
 #include <asm/uaccess.h>
 
 volatile unsigned long irq_err_count;
+DEFINE_PER_CPU(unsigned long, irq_pmi_count);
 
 void ack_bad_irq(unsigned int irq)
 {
@@ -63,9 +64,7 @@ int irq_select_affinity(unsigned int irq)
 int
 show_interrupts(struct seq_file *p, void *v)
 {
-#ifdef CONFIG_SMP
        int j;
-#endif
        int irq = *(loff_t *) v;
        struct irqaction * action;
        unsigned long flags;
@@ -112,6 +111,10 @@ unlock:
                        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);
        }
        return 0;