diff options
| author | Chris Redpath <chris.redpath@arm.com> | 2013-10-11 11:45:00 +0100 |
|---|---|---|
| committer | Jon Medhurst <tixy@linaro.org> | 2013-10-11 15:07:18 +0100 |
| commit | 2353c1f8009c14e89b323b18ae246c485fc034e4 (patch) | |
| tree | f6e207a94b4364410c55526c9445203dc3f46f69 /drivers/irqchip | |
| parent | 7b8e0b3f2af55b1ffb5c10be1daa59d8dc21d140 (diff) | |
arm: ipi raise/start/end tracing
Add tracepoints for IPI raise events, and start and end of the
ipi handler.
Used to inspect the source of CPU wake-ups which are not already
traced - all other reasons for a CPU to wake-up are already
covered.
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Jon Medhurst <tixy@linaro.org>
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-gic.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c index 19ceaa60e0f..5dc511c5872 100644 --- a/drivers/irqchip/irq-gic.c +++ b/drivers/irqchip/irq-gic.c @@ -41,6 +41,7 @@ #include <linux/slab.h> #include <linux/irqchip/chained_irq.h> #include <linux/irqchip/arm-gic.h> +#include <trace/events/arm-ipi.h> #include <asm/irq.h> #include <asm/exception.h> @@ -649,8 +650,10 @@ void gic_raise_softirq(const struct cpumask *mask, unsigned int irq) unsigned long map = 0; /* Convert our logical CPU mask into a physical one. */ - for_each_cpu(cpu, mask) + for_each_cpu(cpu, mask) { + trace_arm_ipi_send(irq, cpu); map |= gic_cpu_map[cpu]; + } /* * Ensure that stores to Normal memory are visible to the |