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Merge branch 'pm-sleep'

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* pm-sleep:
  PM / sleep: trace events for device PM callbacks
  PM / sleep: trace events for suspend/resume
This commit is contained in:
Rafael J. Wysocki
2014-06-12 13:43:08 +02:00
parent 589e18a973 e8bca479c3
commit d715a226b0
8 changed files with 124 additions and 41 deletions
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102
include/trace/events/power.h
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@@ -7,6 +7,9 @@
#include <linux/ktime.h>
#include <linux/pm_qos.h>
#include <linux/tracepoint.h>
#include <linux/ftrace_event.h>
#define TPS(x) tracepoint_string(x)
DECLARE_EVENT_CLASS(cpu,
@@ -90,6 +93,17 @@ TRACE_EVENT(pstate_sample,
#define PWR_EVENT_EXIT -1
#endif
#define pm_verb_symbolic(event) \
__print_symbolic(event, \
{ PM_EVENT_SUSPEND, "suspend" }, \
{ PM_EVENT_RESUME, "resume" }, \
{ PM_EVENT_FREEZE, "freeze" }, \
{ PM_EVENT_QUIESCE, "quiesce" }, \
{ PM_EVENT_HIBERNATE, "hibernate" }, \
{ PM_EVENT_THAW, "thaw" }, \
{ PM_EVENT_RESTORE, "restore" }, \
{ PM_EVENT_RECOVER, "recover" })
DEFINE_EVENT(cpu, cpu_frequency,
TP_PROTO(unsigned int frequency, unsigned int cpu_id),
@@ -97,58 +111,76 @@ DEFINE_EVENT(cpu, cpu_frequency,
TP_ARGS(frequency, cpu_id)
);
TRACE_EVENT(machine_suspend,
TRACE_EVENT(device_pm_callback_start,
TP_PROTO(unsigned int state),
TP_PROTO(struct device *dev, const char *pm_ops, int event),
TP_ARGS(state),
TP_STRUCT__entry(
__field( u32, state )
),
TP_fast_assign(
__entry->state = state;
),
TP_printk("state=%lu", (unsigned long)__entry->state)
);
TRACE_EVENT(device_pm_report_time,
TP_PROTO(struct device *dev, const char *pm_ops, s64 ops_time,
char *pm_event_str, int error),
TP_ARGS(dev, pm_ops, ops_time, pm_event_str, error),
TP_ARGS(dev, pm_ops, event),
TP_STRUCT__entry(
__string(device, dev_name(dev))
__string(driver, dev_driver_string(dev))
__string(parent, dev->parent ? dev_name(dev->parent) : "none")
__string(pm_ops, pm_ops ? pm_ops : "none ")
__string(pm_event_str, pm_event_str)
__field(s64, ops_time)
__field(int, event)
),
TP_fast_assign(
__assign_str(device, dev_name(dev));
__assign_str(driver, dev_driver_string(dev));
__assign_str(parent,
dev->parent ? dev_name(dev->parent) : "none");
__assign_str(pm_ops, pm_ops ? pm_ops : "none ");
__entry->event = event;
),
TP_printk("%s %s, parent: %s, %s[%s]", __get_str(driver),
__get_str(device), __get_str(parent), __get_str(pm_ops),
pm_verb_symbolic(__entry->event))
);
TRACE_EVENT(device_pm_callback_end,
TP_PROTO(struct device *dev, int error),
TP_ARGS(dev, error),
TP_STRUCT__entry(
__string(device, dev_name(dev))
__string(driver, dev_driver_string(dev))
__field(int, error)
),
TP_fast_assign(
const char *tmp = dev->parent ? dev_name(dev->parent) : "none";
const char *tmp_i = pm_ops ? pm_ops : "none ";
__assign_str(device, dev_name(dev));
__assign_str(driver, dev_driver_string(dev));
__assign_str(parent, tmp);
__assign_str(pm_ops, tmp_i);
__assign_str(pm_event_str, pm_event_str);
__entry->ops_time = ops_time;
__entry->error = error;
),
/* ops_str has an extra space at the end */
TP_printk("%s %s parent=%s state=%s ops=%snsecs=%lld err=%d",
__get_str(driver), __get_str(device), __get_str(parent),
__get_str(pm_event_str), __get_str(pm_ops),
__entry->ops_time, __entry->error)
TP_printk("%s %s, err=%d",
__get_str(driver), __get_str(device), __entry->error)
);
TRACE_EVENT(suspend_resume,
TP_PROTO(const char *action, int val, bool start),
TP_ARGS(action, val, start),
TP_STRUCT__entry(
__field(const char *, action)
__field(int, val)
__field(bool, start)
),
TP_fast_assign(
__entry->action = action;
__entry->val = val;
__entry->start = start;
),
TP_printk("%s[%u] %s", __entry->action, (unsigned int)__entry->val,
(__entry->start)?"begin":"end")
);
DECLARE_EVENT_CLASS(wakeup_source,