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3f7ced7ac9
Simplify the thermal_power_cpu_get_power trace event by removing complicated cpumask and variable length array. Now the tools parsing trace output don't have to hassle to get this power data. The simplified format version uses 'policy->cpu'. Remove also the 'load' information completely since there is very little value of it in this trace event. To get the CPUs' load (or utilization) there are other dedicated trace hooks in the kernel. This patch also simplifies and speeds-up the main cooling code when that trace event is enabled. Rename the trace event to avoid confusion of tools which parse the trace file. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Lukasz Luba <lukasz.luba@arm.com> Link: https://lore.kernel.org/r/20220613124327.30766-3-lukasz.luba@arm.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
199 lines
4.7 KiB
C
199 lines
4.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM thermal
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#if !defined(_TRACE_THERMAL_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_THERMAL_H
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#include <linux/devfreq.h>
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#include <linux/thermal.h>
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#include <linux/tracepoint.h>
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TRACE_DEFINE_ENUM(THERMAL_TRIP_CRITICAL);
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TRACE_DEFINE_ENUM(THERMAL_TRIP_HOT);
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TRACE_DEFINE_ENUM(THERMAL_TRIP_PASSIVE);
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TRACE_DEFINE_ENUM(THERMAL_TRIP_ACTIVE);
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#define show_tzt_type(type) \
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__print_symbolic(type, \
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{ THERMAL_TRIP_CRITICAL, "CRITICAL"}, \
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{ THERMAL_TRIP_HOT, "HOT"}, \
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{ THERMAL_TRIP_PASSIVE, "PASSIVE"}, \
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{ THERMAL_TRIP_ACTIVE, "ACTIVE"})
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TRACE_EVENT(thermal_temperature,
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TP_PROTO(struct thermal_zone_device *tz),
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TP_ARGS(tz),
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TP_STRUCT__entry(
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__string(thermal_zone, tz->type)
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__field(int, id)
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__field(int, temp_prev)
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__field(int, temp)
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),
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TP_fast_assign(
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__assign_str(thermal_zone, tz->type);
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__entry->id = tz->id;
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__entry->temp_prev = tz->last_temperature;
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__entry->temp = tz->temperature;
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),
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TP_printk("thermal_zone=%s id=%d temp_prev=%d temp=%d",
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__get_str(thermal_zone), __entry->id, __entry->temp_prev,
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__entry->temp)
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);
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TRACE_EVENT(cdev_update,
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TP_PROTO(struct thermal_cooling_device *cdev, unsigned long target),
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TP_ARGS(cdev, target),
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TP_STRUCT__entry(
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__string(type, cdev->type)
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__field(unsigned long, target)
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),
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TP_fast_assign(
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__assign_str(type, cdev->type);
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__entry->target = target;
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),
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TP_printk("type=%s target=%lu", __get_str(type), __entry->target)
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);
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TRACE_EVENT(thermal_zone_trip,
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TP_PROTO(struct thermal_zone_device *tz, int trip,
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enum thermal_trip_type trip_type),
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TP_ARGS(tz, trip, trip_type),
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TP_STRUCT__entry(
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__string(thermal_zone, tz->type)
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__field(int, id)
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__field(int, trip)
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__field(enum thermal_trip_type, trip_type)
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),
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TP_fast_assign(
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__assign_str(thermal_zone, tz->type);
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__entry->id = tz->id;
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__entry->trip = trip;
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__entry->trip_type = trip_type;
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),
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TP_printk("thermal_zone=%s id=%d trip=%d trip_type=%s",
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__get_str(thermal_zone), __entry->id, __entry->trip,
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show_tzt_type(__entry->trip_type))
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);
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#ifdef CONFIG_CPU_THERMAL
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TRACE_EVENT(thermal_power_cpu_get_power_simple,
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TP_PROTO(int cpu, u32 power),
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TP_ARGS(cpu, power),
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TP_STRUCT__entry(
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__field(int, cpu)
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__field(u32, power)
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),
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TP_fast_assign(
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__entry->cpu = cpu;
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__entry->power = power;
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),
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TP_printk("cpu=%d power=%u", __entry->cpu, __entry->power)
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);
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TRACE_EVENT(thermal_power_cpu_limit,
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TP_PROTO(const struct cpumask *cpus, unsigned int freq,
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unsigned long cdev_state, u32 power),
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TP_ARGS(cpus, freq, cdev_state, power),
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TP_STRUCT__entry(
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__bitmask(cpumask, num_possible_cpus())
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__field(unsigned int, freq )
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__field(unsigned long, cdev_state)
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__field(u32, power )
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),
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TP_fast_assign(
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__assign_bitmask(cpumask, cpumask_bits(cpus),
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num_possible_cpus());
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__entry->freq = freq;
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__entry->cdev_state = cdev_state;
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__entry->power = power;
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),
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TP_printk("cpus=%s freq=%u cdev_state=%lu power=%u",
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__get_bitmask(cpumask), __entry->freq, __entry->cdev_state,
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__entry->power)
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);
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#endif /* CONFIG_CPU_THERMAL */
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#ifdef CONFIG_DEVFREQ_THERMAL
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TRACE_EVENT(thermal_power_devfreq_get_power,
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TP_PROTO(struct thermal_cooling_device *cdev,
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struct devfreq_dev_status *status, unsigned long freq,
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u32 power),
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TP_ARGS(cdev, status, freq, power),
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TP_STRUCT__entry(
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__string(type, cdev->type )
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__field(unsigned long, freq )
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__field(u32, busy_time)
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__field(u32, total_time)
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__field(u32, power)
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),
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TP_fast_assign(
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__assign_str(type, cdev->type);
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__entry->freq = freq;
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__entry->busy_time = status->busy_time;
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__entry->total_time = status->total_time;
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__entry->power = power;
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),
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TP_printk("type=%s freq=%lu load=%u power=%u",
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__get_str(type), __entry->freq,
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__entry->total_time == 0 ? 0 :
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(100 * __entry->busy_time) / __entry->total_time,
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__entry->power)
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);
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TRACE_EVENT(thermal_power_devfreq_limit,
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TP_PROTO(struct thermal_cooling_device *cdev, unsigned long freq,
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unsigned long cdev_state, u32 power),
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TP_ARGS(cdev, freq, cdev_state, power),
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TP_STRUCT__entry(
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__string(type, cdev->type)
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__field(unsigned int, freq )
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__field(unsigned long, cdev_state)
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__field(u32, power )
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),
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TP_fast_assign(
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__assign_str(type, cdev->type);
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__entry->freq = freq;
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__entry->cdev_state = cdev_state;
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__entry->power = power;
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),
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TP_printk("type=%s freq=%u cdev_state=%lu power=%u",
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__get_str(type), __entry->freq, __entry->cdev_state,
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__entry->power)
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);
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#endif /* CONFIG_DEVFREQ_THERMAL */
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#endif /* _TRACE_THERMAL_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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