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linux/include/trace/events/power.h
Rafael J. Wysocki 333eed7d20 PM: QoS: Simplify definitions of CPU latency QoS trace events 
Modify the definitions of the CPU latency QoS trace events to take
one argument (since PM_QOS_CPU_DMA_LATENCY is always passed as the
pm_qos_class argument to them) and update the documentation of them
accordingly (while at it, make it explicitly mention CPU latency QoS
and relocate it after the device PM QoS trace events documentation).

The names and output format of the trace events do not change to
preserve user space compatibility.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Tested-by: Amit Kucheria <amit.kucheria@linaro.org>
2020-02-13 11:26:39 +01:00

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/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM power
#if !defined(_TRACE_POWER_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_POWER_H
#include <linux/cpufreq.h>
#include <linux/ktime.h>
#include <linux/pm_qos.h>
#include <linux/tracepoint.h>
#include <linux/trace_events.h>
#define TPS(x) tracepoint_string(x)
DECLARE_EVENT_CLASS(cpu,
TP_PROTO(unsigned int state, unsigned int cpu_id),
TP_ARGS(state, cpu_id),
TP_STRUCT__entry(
__field( u32, state )
__field( u32, cpu_id )
),
TP_fast_assign(
__entry->state = state;
__entry->cpu_id = cpu_id;
),
TP_printk("state=%lu cpu_id=%lu", (unsigned long)__entry->state,
(unsigned long)__entry->cpu_id)
);
DEFINE_EVENT(cpu, cpu_idle,
TP_PROTO(unsigned int state, unsigned int cpu_id),
TP_ARGS(state, cpu_id)
);
TRACE_EVENT(powernv_throttle,
TP_PROTO(int chip_id, const char *reason, int pmax),
TP_ARGS(chip_id, reason, pmax),
TP_STRUCT__entry(
__field(int, chip_id)
__string(reason, reason)
__field(int, pmax)
),
TP_fast_assign(
__entry->chip_id = chip_id;
__assign_str(reason, reason);
__entry->pmax = pmax;
),
TP_printk("Chip %d Pmax %d %s", __entry->chip_id,
__entry->pmax, __get_str(reason))
);
TRACE_EVENT(pstate_sample,
TP_PROTO(u32 core_busy,
u32 scaled_busy,
u32 from,
u32 to,
u64 mperf,
u64 aperf,
u64 tsc,
u32 freq,
u32 io_boost
),
TP_ARGS(core_busy,
scaled_busy,
from,
to,
mperf,
aperf,
tsc,
freq,
io_boost
),
TP_STRUCT__entry(
__field(u32, core_busy)
__field(u32, scaled_busy)
__field(u32, from)
__field(u32, to)
__field(u64, mperf)
__field(u64, aperf)
__field(u64, tsc)
__field(u32, freq)
__field(u32, io_boost)
),
TP_fast_assign(
__entry->core_busy = core_busy;
__entry->scaled_busy = scaled_busy;
__entry->from = from;
__entry->to = to;
__entry->mperf = mperf;
__entry->aperf = aperf;
__entry->tsc = tsc;
__entry->freq = freq;
__entry->io_boost = io_boost;
),
TP_printk("core_busy=%lu scaled=%lu from=%lu to=%lu mperf=%llu aperf=%llu tsc=%llu freq=%lu io_boost=%lu",
(unsigned long)__entry->core_busy,
(unsigned long)__entry->scaled_busy,
(unsigned long)__entry->from,
(unsigned long)__entry->to,
(unsigned long long)__entry->mperf,
(unsigned long long)__entry->aperf,
(unsigned long long)__entry->tsc,
(unsigned long)__entry->freq,
(unsigned long)__entry->io_boost
)
);
/* This file can get included multiple times, TRACE_HEADER_MULTI_READ at top */
#ifndef _PWR_EVENT_AVOID_DOUBLE_DEFINING
#define _PWR_EVENT_AVOID_DOUBLE_DEFINING
#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),
TP_ARGS(frequency, cpu_id)
);
TRACE_EVENT(cpu_frequency_limits,
TP_PROTO(struct cpufreq_policy *policy),
TP_ARGS(policy),
TP_STRUCT__entry(
__field(u32, min_freq)
__field(u32, max_freq)
__field(u32, cpu_id)
),
TP_fast_assign(
__entry->min_freq = policy->min;
__entry->max_freq = policy->max;
__entry->cpu_id = policy->cpu;
),
TP_printk("min=%lu max=%lu cpu_id=%lu",
(unsigned long)__entry->min_freq,
(unsigned long)__entry->max_freq,
(unsigned long)__entry->cpu_id)
);
TRACE_EVENT(device_pm_callback_start,
TP_PROTO(struct device *dev, const char *pm_ops, int event),
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 ")
__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(
__assign_str(device, dev_name(dev));
__assign_str(driver, dev_driver_string(dev));
__entry->error = 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,
TP_PROTO(const char *name, unsigned int state),
TP_ARGS(name, state),
TP_STRUCT__entry(
__string( name, name )
__field( u64, state )
),
TP_fast_assign(
__assign_str(name, name);
__entry->state = state;
),
TP_printk("%s state=0x%lx", __get_str(name),
(unsigned long)__entry->state)
);
DEFINE_EVENT(wakeup_source, wakeup_source_activate,
TP_PROTO(const char *name, unsigned int state),
TP_ARGS(name, state)
);
DEFINE_EVENT(wakeup_source, wakeup_source_deactivate,
TP_PROTO(const char *name, unsigned int state),
TP_ARGS(name, state)
);
/*
* The clock events are used for clock enable/disable and for
* clock rate change
*/
DECLARE_EVENT_CLASS(clock,
TP_PROTO(const char *name, unsigned int state, unsigned int cpu_id),
TP_ARGS(name, state, cpu_id),
TP_STRUCT__entry(
__string( name, name )
__field( u64, state )
__field( u64, cpu_id )
),
TP_fast_assign(
__assign_str(name, name);
__entry->state = state;
__entry->cpu_id = cpu_id;
),
TP_printk("%s state=%lu cpu_id=%lu", __get_str(name),
(unsigned long)__entry->state, (unsigned long)__entry->cpu_id)
);
DEFINE_EVENT(clock, clock_enable,
TP_PROTO(const char *name, unsigned int state, unsigned int cpu_id),
TP_ARGS(name, state, cpu_id)
);
DEFINE_EVENT(clock, clock_disable,
TP_PROTO(const char *name, unsigned int state, unsigned int cpu_id),
TP_ARGS(name, state, cpu_id)
);
DEFINE_EVENT(clock, clock_set_rate,
TP_PROTO(const char *name, unsigned int state, unsigned int cpu_id),
TP_ARGS(name, state, cpu_id)
);
/*
* The power domain events are used for power domains transitions
*/
DECLARE_EVENT_CLASS(power_domain,
TP_PROTO(const char *name, unsigned int state, unsigned int cpu_id),
TP_ARGS(name, state, cpu_id),
TP_STRUCT__entry(
__string( name, name )
__field( u64, state )
__field( u64, cpu_id )
),
TP_fast_assign(
__assign_str(name, name);
__entry->state = state;
__entry->cpu_id = cpu_id;
),
TP_printk("%s state=%lu cpu_id=%lu", __get_str(name),
(unsigned long)__entry->state, (unsigned long)__entry->cpu_id)
);
DEFINE_EVENT(power_domain, power_domain_target,
TP_PROTO(const char *name, unsigned int state, unsigned int cpu_id),
TP_ARGS(name, state, cpu_id)
);
/*
* CPU latency QoS events used for global CPU latency QoS list updates
*/
DECLARE_EVENT_CLASS(cpu_latency_qos_request,
TP_PROTO(s32 value),
TP_ARGS(value),
TP_STRUCT__entry(
__field( s32, value )
),
TP_fast_assign(
__entry->value = value;
),
TP_printk("CPU_DMA_LATENCY value=%d",
__entry->value)
);
DEFINE_EVENT(cpu_latency_qos_request, pm_qos_add_request,
TP_PROTO(s32 value),
TP_ARGS(value)
);
DEFINE_EVENT(cpu_latency_qos_request, pm_qos_update_request,
TP_PROTO(s32 value),
TP_ARGS(value)
);
DEFINE_EVENT(cpu_latency_qos_request, pm_qos_remove_request,
TP_PROTO(s32 value),
TP_ARGS(value)
);
/*
* General PM QoS events used for updates of PM QoS request lists
*/
DECLARE_EVENT_CLASS(pm_qos_update,
TP_PROTO(enum pm_qos_req_action action, int prev_value, int curr_value),
TP_ARGS(action, prev_value, curr_value),
TP_STRUCT__entry(
__field( enum pm_qos_req_action, action )
__field( int, prev_value )
__field( int, curr_value )
),
TP_fast_assign(
__entry->action = action;
__entry->prev_value = prev_value;
__entry->curr_value = curr_value;
),
TP_printk("action=%s prev_value=%d curr_value=%d",
__print_symbolic(__entry->action,
{ PM_QOS_ADD_REQ, "ADD_REQ" },
{ PM_QOS_UPDATE_REQ, "UPDATE_REQ" },
{ PM_QOS_REMOVE_REQ, "REMOVE_REQ" }),
__entry->prev_value, __entry->curr_value)
);
DEFINE_EVENT(pm_qos_update, pm_qos_update_target,
TP_PROTO(enum pm_qos_req_action action, int prev_value, int curr_value),
TP_ARGS(action, prev_value, curr_value)
);
DEFINE_EVENT_PRINT(pm_qos_update, pm_qos_update_flags,
TP_PROTO(enum pm_qos_req_action action, int prev_value, int curr_value),
TP_ARGS(action, prev_value, curr_value),
TP_printk("action=%s prev_value=0x%x curr_value=0x%x",
__print_symbolic(__entry->action,
{ PM_QOS_ADD_REQ, "ADD_REQ" },
{ PM_QOS_UPDATE_REQ, "UPDATE_REQ" },
{ PM_QOS_REMOVE_REQ, "REMOVE_REQ" }),
__entry->prev_value, __entry->curr_value)
);
DECLARE_EVENT_CLASS(dev_pm_qos_request,
TP_PROTO(const char *name, enum dev_pm_qos_req_type type,
s32 new_value),
TP_ARGS(name, type, new_value),
TP_STRUCT__entry(
__string( name, name )
__field( enum dev_pm_qos_req_type, type )
__field( s32, new_value )
),
TP_fast_assign(
__assign_str(name, name);
__entry->type = type;
__entry->new_value = new_value;
),
TP_printk("device=%s type=%s new_value=%d",
__get_str(name),
__print_symbolic(__entry->type,
{ DEV_PM_QOS_RESUME_LATENCY, "DEV_PM_QOS_RESUME_LATENCY" },
{ DEV_PM_QOS_FLAGS, "DEV_PM_QOS_FLAGS" }),
__entry->new_value)
);
DEFINE_EVENT(dev_pm_qos_request, dev_pm_qos_add_request,
TP_PROTO(const char *name, enum dev_pm_qos_req_type type,
s32 new_value),
TP_ARGS(name, type, new_value)
);
DEFINE_EVENT(dev_pm_qos_request, dev_pm_qos_update_request,
TP_PROTO(const char *name, enum dev_pm_qos_req_type type,
s32 new_value),
TP_ARGS(name, type, new_value)
);
DEFINE_EVENT(dev_pm_qos_request, dev_pm_qos_remove_request,
TP_PROTO(const char *name, enum dev_pm_qos_req_type type,
s32 new_value),
TP_ARGS(name, type, new_value)
);
#endif /* _TRACE_POWER_H */
/* This part must be outside protection */
#include <trace/define_trace.h>
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