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-rw-r--r--arch/powerpc/include/asm/hardirq.h3
-rw-r--r--arch/powerpc/kernel/dbell.c2
-rw-r--r--arch/powerpc/kernel/irq.c12
3 files changed, 17 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/hardirq.h b/arch/powerpc/include/asm/hardirq.h
index 3147a2970125..3bdcfce2c42a 100644
--- a/arch/powerpc/include/asm/hardirq.h
+++ b/arch/powerpc/include/asm/hardirq.h
@@ -10,6 +10,9 @@ typedef struct {
unsigned int pmu_irqs;
unsigned int mce_exceptions;
unsigned int spurious_irqs;
+#ifdef CONFIG_PPC_DOORBELL
+ unsigned int doorbell_irqs;
+#endif
} ____cacheline_aligned irq_cpustat_t;
DECLARE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);
diff --git a/arch/powerpc/kernel/dbell.c b/arch/powerpc/kernel/dbell.c
index 9ebbc24bb23c..d55c76c571f3 100644
--- a/arch/powerpc/kernel/dbell.c
+++ b/arch/powerpc/kernel/dbell.c
@@ -41,6 +41,8 @@ void doorbell_exception(struct pt_regs *regs)
may_hard_irq_enable();
+ __get_cpu_var(irq_stat).doorbell_irqs++;
+
smp_ipi_demux();
irq_exit();
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 4f97fe345526..5cbcf4d5a808 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -374,6 +374,15 @@ int arch_show_interrupts(struct seq_file *p, int prec)
seq_printf(p, "%10u ", per_cpu(irq_stat, j).mce_exceptions);
seq_printf(p, " Machine check exceptions\n");
+#ifdef CONFIG_PPC_DOORBELL
+ if (cpu_has_feature(CPU_FTR_DBELL)) {
+ seq_printf(p, "%*s: ", prec, "DBL");
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", per_cpu(irq_stat, j).doorbell_irqs);
+ seq_printf(p, " Doorbell interrupts\n");
+ }
+#endif
+
return 0;
}
@@ -387,6 +396,9 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
sum += per_cpu(irq_stat, cpu).pmu_irqs;
sum += per_cpu(irq_stat, cpu).mce_exceptions;
sum += per_cpu(irq_stat, cpu).spurious_irqs;
+#ifdef CONFIG_PPC_DOORBELL
+ sum += per_cpu(irq_stat, cpu).doorbell_irqs;
+#endif
return sum;
}