@@ -13,6 +13,9 @@ typedef struct {
unsigned int spurious_irqs;
unsigned int hmi_exceptions;
unsigned int sreset_irqs;
+#ifdef CONFIG_PPC_WATCHDOG
+ unsigned int soft_nmi_irqs;
+#endif
#ifdef CONFIG_PPC_DOORBELL
unsigned int doorbell_irqs;
#endif
@@ -475,6 +475,13 @@ int arch_show_interrupts(struct seq_file *p, int prec)
seq_printf(p, "%10u ", per_cpu(irq_stat, j).sreset_irqs);
seq_printf(p, " System Reset interrupts\n");
+#ifdef CONFIG_PPC_WATCHDOG
+ seq_printf(p, "%*s: ", prec, "WDG");
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", per_cpu(irq_stat, j).soft_nmi_irqs);
+ seq_printf(p, " Watchdog soft-NMI interrupts\n");
+#endif
+
#ifdef CONFIG_PPC_DOORBELL
if (cpu_has_feature(CPU_FTR_DBELL)) {
seq_printf(p, "%*s: ", prec, "DBL");
@@ -500,6 +507,9 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
sum += per_cpu(irq_stat, cpu).timer_irqs_others;
sum += per_cpu(irq_stat, cpu).hmi_exceptions;
sum += per_cpu(irq_stat, cpu).sreset_irqs;
+#ifdef CONFIG_PPC_WATCHDOG
+ sum += per_cpu(irq_stat, cpu).soft_nmi_irqs;
+#endif
#ifdef CONFIG_PPC_DOORBELL
sum += per_cpu(irq_stat, cpu).doorbell_irqs;
#endif
This adds an irq counter for the watchdog soft-NMI. This interrupt only fires when interrupts are soft-disabled, so it will not increment much even when the watchdog is running. However it's useful for debugging and sanity checking. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> --- arch/powerpc/include/asm/hardirq.h | 3 +++ arch/powerpc/kernel/irq.c | 10 ++++++++++ 2 files changed, 13 insertions(+)