ARM: SMP: collect IPI and local timer IRQs for /proc/stat
The IPI and local timer interrupts weren't being properly accounted
for in /proc/stat. Collect them from the irq_stat structure, and
return their sum.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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 @@
}
}
+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
*/