e8bca479c3
Adds two trace events which supply the same info that initcall_debug provides, but via ftrace instead of dmesg. The existing initcall_debug calls require the pm_print_times_enabled var to be set (either via sysfs or via the kernel cmd line). The new trace events provide all the same info as the initcall_debug prints but with less overhead, and also with coverage of device prepare and complete device callbacks. These events replace the device_pm_report_time event (which has been removed). device_pm_callback_start is called first and provides the device and callback info. device_pm_callback_end is called after with the device name and error info. The time and pid are gathered from the trace data headers. Signed-off-by: Todd Brandt <todd.e.brandt@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
473 lines
11 KiB
C
473 lines
11 KiB
C
#undef TRACE_SYSTEM
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#define TRACE_SYSTEM power
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#if !defined(_TRACE_POWER_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_POWER_H
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#include <linux/ktime.h>
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#include <linux/pm_qos.h>
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#include <linux/tracepoint.h>
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#include <linux/ftrace_event.h>
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#define TPS(x) tracepoint_string(x)
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DECLARE_EVENT_CLASS(cpu,
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TP_PROTO(unsigned int state, unsigned int cpu_id),
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TP_ARGS(state, cpu_id),
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TP_STRUCT__entry(
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__field( u32, state )
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__field( u32, cpu_id )
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),
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TP_fast_assign(
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__entry->state = state;
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__entry->cpu_id = cpu_id;
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),
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TP_printk("state=%lu cpu_id=%lu", (unsigned long)__entry->state,
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(unsigned long)__entry->cpu_id)
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);
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DEFINE_EVENT(cpu, cpu_idle,
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TP_PROTO(unsigned int state, unsigned int cpu_id),
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TP_ARGS(state, cpu_id)
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);
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TRACE_EVENT(pstate_sample,
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TP_PROTO(u32 core_busy,
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u32 scaled_busy,
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u32 state,
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u64 mperf,
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u64 aperf,
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u32 freq
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),
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TP_ARGS(core_busy,
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scaled_busy,
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state,
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mperf,
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aperf,
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freq
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),
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TP_STRUCT__entry(
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__field(u32, core_busy)
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__field(u32, scaled_busy)
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__field(u32, state)
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__field(u64, mperf)
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__field(u64, aperf)
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__field(u32, freq)
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),
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TP_fast_assign(
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__entry->core_busy = core_busy;
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__entry->scaled_busy = scaled_busy;
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__entry->state = state;
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__entry->mperf = mperf;
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__entry->aperf = aperf;
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__entry->freq = freq;
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),
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TP_printk("core_busy=%lu scaled=%lu state=%lu mperf=%llu aperf=%llu freq=%lu ",
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(unsigned long)__entry->core_busy,
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(unsigned long)__entry->scaled_busy,
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(unsigned long)__entry->state,
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(unsigned long long)__entry->mperf,
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(unsigned long long)__entry->aperf,
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(unsigned long)__entry->freq
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)
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);
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/* This file can get included multiple times, TRACE_HEADER_MULTI_READ at top */
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#ifndef _PWR_EVENT_AVOID_DOUBLE_DEFINING
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#define _PWR_EVENT_AVOID_DOUBLE_DEFINING
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#define PWR_EVENT_EXIT -1
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#endif
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#define pm_verb_symbolic(event) \
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__print_symbolic(event, \
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{ PM_EVENT_SUSPEND, "suspend" }, \
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{ PM_EVENT_RESUME, "resume" }, \
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{ PM_EVENT_FREEZE, "freeze" }, \
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{ PM_EVENT_QUIESCE, "quiesce" }, \
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{ PM_EVENT_HIBERNATE, "hibernate" }, \
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{ PM_EVENT_THAW, "thaw" }, \
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{ PM_EVENT_RESTORE, "restore" }, \
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{ PM_EVENT_RECOVER, "recover" })
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DEFINE_EVENT(cpu, cpu_frequency,
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TP_PROTO(unsigned int frequency, unsigned int cpu_id),
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TP_ARGS(frequency, cpu_id)
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);
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TRACE_EVENT(device_pm_callback_start,
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TP_PROTO(struct device *dev, const char *pm_ops, int event),
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TP_ARGS(dev, pm_ops, event),
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TP_STRUCT__entry(
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__string(device, dev_name(dev))
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__string(driver, dev_driver_string(dev))
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__string(parent, dev->parent ? dev_name(dev->parent) : "none")
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__string(pm_ops, pm_ops ? pm_ops : "none ")
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__field(int, event)
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),
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TP_fast_assign(
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__assign_str(device, dev_name(dev));
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__assign_str(driver, dev_driver_string(dev));
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__assign_str(parent,
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dev->parent ? dev_name(dev->parent) : "none");
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__assign_str(pm_ops, pm_ops ? pm_ops : "none ");
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__entry->event = event;
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),
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TP_printk("%s %s, parent: %s, %s[%s]", __get_str(driver),
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__get_str(device), __get_str(parent), __get_str(pm_ops),
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pm_verb_symbolic(__entry->event))
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);
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TRACE_EVENT(device_pm_callback_end,
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TP_PROTO(struct device *dev, int error),
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TP_ARGS(dev, error),
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TP_STRUCT__entry(
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__string(device, dev_name(dev))
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__string(driver, dev_driver_string(dev))
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__field(int, error)
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),
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TP_fast_assign(
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__assign_str(device, dev_name(dev));
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__assign_str(driver, dev_driver_string(dev));
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__entry->error = error;
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),
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TP_printk("%s %s, err=%d",
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__get_str(driver), __get_str(device), __entry->error)
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);
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TRACE_EVENT(suspend_resume,
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TP_PROTO(const char *action, int val, bool start),
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TP_ARGS(action, val, start),
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TP_STRUCT__entry(
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__field(const char *, action)
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__field(int, val)
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__field(bool, start)
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),
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TP_fast_assign(
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__entry->action = action;
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__entry->val = val;
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__entry->start = start;
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),
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TP_printk("%s[%u] %s", __entry->action, (unsigned int)__entry->val,
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(__entry->start)?"begin":"end")
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);
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DECLARE_EVENT_CLASS(wakeup_source,
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TP_PROTO(const char *name, unsigned int state),
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TP_ARGS(name, state),
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TP_STRUCT__entry(
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__string( name, name )
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__field( u64, state )
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),
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TP_fast_assign(
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__assign_str(name, name);
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__entry->state = state;
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),
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TP_printk("%s state=0x%lx", __get_str(name),
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(unsigned long)__entry->state)
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);
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DEFINE_EVENT(wakeup_source, wakeup_source_activate,
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TP_PROTO(const char *name, unsigned int state),
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TP_ARGS(name, state)
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);
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DEFINE_EVENT(wakeup_source, wakeup_source_deactivate,
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TP_PROTO(const char *name, unsigned int state),
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TP_ARGS(name, state)
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);
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/*
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* The clock events are used for clock enable/disable and for
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* clock rate change
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*/
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DECLARE_EVENT_CLASS(clock,
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TP_PROTO(const char *name, unsigned int state, unsigned int cpu_id),
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TP_ARGS(name, state, cpu_id),
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TP_STRUCT__entry(
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__string( name, name )
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__field( u64, state )
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__field( u64, cpu_id )
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),
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TP_fast_assign(
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__assign_str(name, name);
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__entry->state = state;
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__entry->cpu_id = cpu_id;
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),
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TP_printk("%s state=%lu cpu_id=%lu", __get_str(name),
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(unsigned long)__entry->state, (unsigned long)__entry->cpu_id)
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);
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DEFINE_EVENT(clock, clock_enable,
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TP_PROTO(const char *name, unsigned int state, unsigned int cpu_id),
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TP_ARGS(name, state, cpu_id)
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);
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DEFINE_EVENT(clock, clock_disable,
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TP_PROTO(const char *name, unsigned int state, unsigned int cpu_id),
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TP_ARGS(name, state, cpu_id)
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);
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DEFINE_EVENT(clock, clock_set_rate,
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TP_PROTO(const char *name, unsigned int state, unsigned int cpu_id),
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TP_ARGS(name, state, cpu_id)
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);
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/*
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* The power domain events are used for power domains transitions
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*/
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DECLARE_EVENT_CLASS(power_domain,
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TP_PROTO(const char *name, unsigned int state, unsigned int cpu_id),
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TP_ARGS(name, state, cpu_id),
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TP_STRUCT__entry(
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__string( name, name )
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__field( u64, state )
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__field( u64, cpu_id )
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),
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TP_fast_assign(
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__assign_str(name, name);
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__entry->state = state;
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__entry->cpu_id = cpu_id;
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),
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TP_printk("%s state=%lu cpu_id=%lu", __get_str(name),
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(unsigned long)__entry->state, (unsigned long)__entry->cpu_id)
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);
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DEFINE_EVENT(power_domain, power_domain_target,
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TP_PROTO(const char *name, unsigned int state, unsigned int cpu_id),
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TP_ARGS(name, state, cpu_id)
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);
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/*
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* The pm qos events are used for pm qos update
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*/
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DECLARE_EVENT_CLASS(pm_qos_request,
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TP_PROTO(int pm_qos_class, s32 value),
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TP_ARGS(pm_qos_class, value),
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TP_STRUCT__entry(
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__field( int, pm_qos_class )
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__field( s32, value )
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),
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TP_fast_assign(
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__entry->pm_qos_class = pm_qos_class;
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__entry->value = value;
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),
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TP_printk("pm_qos_class=%s value=%d",
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__print_symbolic(__entry->pm_qos_class,
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{ PM_QOS_CPU_DMA_LATENCY, "CPU_DMA_LATENCY" },
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{ PM_QOS_NETWORK_LATENCY, "NETWORK_LATENCY" },
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{ PM_QOS_NETWORK_THROUGHPUT, "NETWORK_THROUGHPUT" }),
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__entry->value)
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);
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DEFINE_EVENT(pm_qos_request, pm_qos_add_request,
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TP_PROTO(int pm_qos_class, s32 value),
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TP_ARGS(pm_qos_class, value)
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);
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DEFINE_EVENT(pm_qos_request, pm_qos_update_request,
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TP_PROTO(int pm_qos_class, s32 value),
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TP_ARGS(pm_qos_class, value)
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);
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DEFINE_EVENT(pm_qos_request, pm_qos_remove_request,
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TP_PROTO(int pm_qos_class, s32 value),
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TP_ARGS(pm_qos_class, value)
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);
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TRACE_EVENT(pm_qos_update_request_timeout,
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TP_PROTO(int pm_qos_class, s32 value, unsigned long timeout_us),
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TP_ARGS(pm_qos_class, value, timeout_us),
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TP_STRUCT__entry(
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__field( int, pm_qos_class )
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__field( s32, value )
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__field( unsigned long, timeout_us )
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),
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TP_fast_assign(
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__entry->pm_qos_class = pm_qos_class;
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__entry->value = value;
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__entry->timeout_us = timeout_us;
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),
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TP_printk("pm_qos_class=%s value=%d, timeout_us=%ld",
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__print_symbolic(__entry->pm_qos_class,
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{ PM_QOS_CPU_DMA_LATENCY, "CPU_DMA_LATENCY" },
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{ PM_QOS_NETWORK_LATENCY, "NETWORK_LATENCY" },
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{ PM_QOS_NETWORK_THROUGHPUT, "NETWORK_THROUGHPUT" }),
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__entry->value, __entry->timeout_us)
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);
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DECLARE_EVENT_CLASS(pm_qos_update,
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TP_PROTO(enum pm_qos_req_action action, int prev_value, int curr_value),
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TP_ARGS(action, prev_value, curr_value),
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TP_STRUCT__entry(
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__field( enum pm_qos_req_action, action )
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__field( int, prev_value )
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__field( int, curr_value )
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),
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TP_fast_assign(
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__entry->action = action;
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__entry->prev_value = prev_value;
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__entry->curr_value = curr_value;
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),
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TP_printk("action=%s prev_value=%d curr_value=%d",
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__print_symbolic(__entry->action,
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{ PM_QOS_ADD_REQ, "ADD_REQ" },
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{ PM_QOS_UPDATE_REQ, "UPDATE_REQ" },
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{ PM_QOS_REMOVE_REQ, "REMOVE_REQ" }),
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__entry->prev_value, __entry->curr_value)
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);
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DEFINE_EVENT(pm_qos_update, pm_qos_update_target,
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TP_PROTO(enum pm_qos_req_action action, int prev_value, int curr_value),
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TP_ARGS(action, prev_value, curr_value)
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);
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DEFINE_EVENT_PRINT(pm_qos_update, pm_qos_update_flags,
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TP_PROTO(enum pm_qos_req_action action, int prev_value, int curr_value),
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TP_ARGS(action, prev_value, curr_value),
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TP_printk("action=%s prev_value=0x%x curr_value=0x%x",
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__print_symbolic(__entry->action,
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{ PM_QOS_ADD_REQ, "ADD_REQ" },
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{ PM_QOS_UPDATE_REQ, "UPDATE_REQ" },
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{ PM_QOS_REMOVE_REQ, "REMOVE_REQ" }),
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__entry->prev_value, __entry->curr_value)
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);
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DECLARE_EVENT_CLASS(dev_pm_qos_request,
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TP_PROTO(const char *name, enum dev_pm_qos_req_type type,
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s32 new_value),
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TP_ARGS(name, type, new_value),
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TP_STRUCT__entry(
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__string( name, name )
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__field( enum dev_pm_qos_req_type, type )
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__field( s32, new_value )
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),
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TP_fast_assign(
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__assign_str(name, name);
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__entry->type = type;
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__entry->new_value = new_value;
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),
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TP_printk("device=%s type=%s new_value=%d",
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__get_str(name),
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__print_symbolic(__entry->type,
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{ DEV_PM_QOS_RESUME_LATENCY, "DEV_PM_QOS_RESUME_LATENCY" },
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{ DEV_PM_QOS_FLAGS, "DEV_PM_QOS_FLAGS" }),
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__entry->new_value)
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);
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DEFINE_EVENT(dev_pm_qos_request, dev_pm_qos_add_request,
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TP_PROTO(const char *name, enum dev_pm_qos_req_type type,
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s32 new_value),
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TP_ARGS(name, type, new_value)
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);
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DEFINE_EVENT(dev_pm_qos_request, dev_pm_qos_update_request,
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TP_PROTO(const char *name, enum dev_pm_qos_req_type type,
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s32 new_value),
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TP_ARGS(name, type, new_value)
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);
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DEFINE_EVENT(dev_pm_qos_request, dev_pm_qos_remove_request,
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TP_PROTO(const char *name, enum dev_pm_qos_req_type type,
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s32 new_value),
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TP_ARGS(name, type, new_value)
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);
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#endif /* _TRACE_POWER_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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