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authorRobin Getz <rgetz@blackfin.uclinux.org>2009-02-04 16:49:45 +0800
committerBryan Wu <cooloney@kernel.org>2009-02-04 16:49:45 +0800
commit3605fb09652beeb2e8244c52a9db5b76cc12295e (patch)
treecff8f711f585fa201c741f0e060ed681cbc12bb3 /arch/blackfin/kernel
parent0be58939146f28394a04b61fec7e0676cdafa47e (diff)
Blackfin arch: Add ability to count and display number of NMI interrupts
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/kernel')
-rw-r--r--arch/blackfin/kernel/irqchip.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/blackfin/kernel/irqchip.c b/arch/blackfin/kernel/irqchip.c
index ab8209cbbad..75724eee649 100644
--- a/arch/blackfin/kernel/irqchip.c
+++ b/arch/blackfin/kernel/irqchip.c
@@ -35,6 +35,7 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <asm/trace.h>
+#include <asm/pda.h>
static atomic_t irq_err_count;
static spinlock_t irq_controller_lock;
@@ -91,8 +92,13 @@ int show_interrupts(struct seq_file *p, void *v)
seq_putc(p, '\n');
skip:
spin_unlock_irqrestore(&irq_desc[i].lock, flags);
- } else if (i == NR_IRQS)
+ } else if (i == NR_IRQS) {
+ seq_printf(p, "NMI: ");
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", cpu_pda[j].__nmi_count);
+ seq_printf(p, " CORE Non Maskable Interrupt\n");
seq_printf(p, "Err: %10u\n", atomic_read(&irq_err_count));
+ }
return 0;
}