power.h

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#undef TRACE_SYSTEM
#define TRACE_SYSTEM power

#if !defined(_TRACE_POWER_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_POWER_H

#include <linux/ktime.h>
#include <linux/tracepoint.h>

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)
);

/* 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_EVENT(cpu, cpu_frequency,

    TP_PROTO(unsigned int frequency, unsigned int cpu_id),

    TP_ARGS(frequency, cpu_id)
);

TRACE_EVENT(machine_suspend,

    TP_PROTO(unsigned int state),

    TP_ARGS(state),

    TP_STRUCT__entry(
        __field(    u32,        state       )
    ),

    TP_fast_assign(
        __entry->state = state;
    ),

    TP_printk("state=%lu", (unsigned long)__entry->state)
);

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)
);

#ifdef CONFIG_EVENT_POWER_TRACING_DEPRECATED

/*
 * The power events are used for cpuidle & suspend (power_start, power_end)
 *  and for cpufreq (power_frequency)
 */
DECLARE_EVENT_CLASS(power,

    TP_PROTO(unsigned int type, unsigned int state, unsigned int cpu_id),

    TP_ARGS(type, state, cpu_id),

    TP_STRUCT__entry(
        __field(    u64,        type        )
        __field(    u64,        state       )
        __field(    u64,        cpu_id      )
    ),

    TP_fast_assign(
        __entry->type = type;
        __entry->state = state;
        __entry->cpu_id = cpu_id;
    ),

    TP_printk("type=%lu state=%lu cpu_id=%lu", (unsigned long)__entry->type,
        (unsigned long)__entry->state, (unsigned long)__entry->cpu_id)
);

DEFINE_EVENT(power, power_start,

    TP_PROTO(unsigned int type, unsigned int state, unsigned int cpu_id),

    TP_ARGS(type, state, cpu_id)
);

DEFINE_EVENT(power, power_frequency,

    TP_PROTO(unsigned int type, unsigned int state, unsigned int cpu_id),

    TP_ARGS(type, state, cpu_id)
);

TRACE_EVENT(power_end,

    TP_PROTO(unsigned int cpu_id),

    TP_ARGS(cpu_id),

    TP_STRUCT__entry(
        __field(    u64,        cpu_id      )
    ),

    TP_fast_assign(
        __entry->cpu_id = cpu_id;
    ),

    TP_printk("cpu_id=%lu", (unsigned long)__entry->cpu_id)

);

/* Deprecated dummy functions must be protected against multi-declartion */
#ifndef _PWR_EVENT_AVOID_DOUBLE_DEFINING_DEPRECATED
#define _PWR_EVENT_AVOID_DOUBLE_DEFINING_DEPRECATED

enum {
    POWER_NONE = 0,
    POWER_CSTATE = 1,
    POWER_PSTATE = 2,
};
#endif /* _PWR_EVENT_AVOID_DOUBLE_DEFINING_DEPRECATED */

#else /* CONFIG_EVENT_POWER_TRACING_DEPRECATED */

#ifndef _PWR_EVENT_AVOID_DOUBLE_DEFINING_DEPRECATED
#define _PWR_EVENT_AVOID_DOUBLE_DEFINING_DEPRECATED
enum {
       POWER_NONE = 0,
       POWER_CSTATE = 1,
       POWER_PSTATE = 2,
};

/* These dummy declaration have to be ripped out when the deprecated
   events get removed */
static inline void trace_power_start(u64 type, u64 state, u64 cpuid) {};
static inline void trace_power_end(u64 cpuid) {};
static inline void trace_power_start_rcuidle(u64 type, u64 state, u64 cpuid) {};
static inline void trace_power_end_rcuidle(u64 cpuid) {};
static inline void trace_power_frequency(u64 type, u64 state, u64 cpuid) {};
#endif /* _PWR_EVENT_AVOID_DOUBLE_DEFINING_DEPRECATED */

#endif /* CONFIG_EVENT_POWER_TRACING_DEPRECATED */

/*
 * 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)
);
#endif /* _TRACE_POWER_H */

/* This part must be outside protection */
#include <trace/define_trace.h>