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-rw-r--r--arch/arm/include/asm/hardirq.h8
-rw-r--r--arch/arm/kernel/smp.c15
2 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm/include/asm/hardirq.h b/arch/arm/include/asm/hardirq.h
index c52e250..89ad180 100644
--- a/arch/arm/include/asm/hardirq.h
+++ b/arch/arm/include/asm/hardirq.h
@@ -22,6 +22,14 @@ typedef struct {
#define __inc_irq_stat(cpu, member) __IRQ_STAT(cpu, member)++
#define __get_irq_stat(cpu, member) __IRQ_STAT(cpu, member)
+#ifdef CONFIG_SMP
+u64 smp_irq_stat_cpu(unsigned int cpu);
+#else
+#define smp_irq_stat_cpu(cpu) 0
+#endif
+
+#define arch_irq_stat_cpu smp_irq_stat_cpu
+
#if NR_IRQS > 512
#define HARDIRQ_BITS 10
#elif NR_IRQS > 256
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index fa0c5f6..1de3e13 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -406,6 +406,21 @@ void show_ipi_list(struct seq_file *p, int prec)
}
}
+u64 smp_irq_stat_cpu(unsigned int cpu)
+{
+ u64 sum = 0;
+ int i;
+
+ for (i = 0; i < NR_IPI; i++)
+ sum += __get_irq_stat(cpu, ipi_irqs[i]);
+
+#ifdef CONFIG_LOCAL_TIMERS
+ sum += __get_irq_stat(cpu, local_timer_irqs);
+#endif
+
+ return sum;
+}
+
/*
* Timer (local or broadcast) support
*/
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