The NMI handlers handle_percpu_devid_fasteoi_nmi() and
handle_fasteoi_nmi() added by commit 2dcf1fbcad35 ("genirq: Provide NMI
handlers") do not update the interrupt counts. Due to that the NMI
interrupt count does not show up correctly in /proc/interrupts.
Update the functions to fix this. With this change, we can see stats of
the perf NMI interrupts on arm64.
Fixes: 2dcf1fbcad35 ("genirq: Provide NMI handlers")
Signed-off-by: Shijith Thotton <sthot...@marvell.com>
---
kernel/irq/chip.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 29d6c7d070b4..88d1e054c6ea 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -748,6 +748,8 @@ void handle_fasteoi_nmi(struct irq_desc *desc)
unsigned int irq = irq_desc_get_irq(desc);
irqreturn_t res;
+ kstat_incr_irqs_this_cpu(desc);
+
trace_irq_handler_entry(irq, action);
/*
* NMIs cannot be shared, there is only one action.
@@ -962,6 +964,8 @@ void handle_percpu_devid_fasteoi_nmi(struct irq_desc *desc)
unsigned int irq = irq_desc_get_irq(desc);
irqreturn_t res;
+ __kstat_incr_irqs_this_cpu(desc);
+
trace_irq_handler_entry(irq, action);
res = action->handler(irq, raw_cpu_ptr(action->percpu_dev_id));
trace_irq_handler_exit(irq, action, res);
--
2.17.0
