From d4dbc991714eefcbd8d54a3204bd77a0a52bd32d Mon Sep 17 00:00:00 2001 From: Vincent Guittot Date: Tue, 26 Mar 2024 10:16:15 +0100 Subject: sched/cpufreq: Rename arch_update_thermal_pressure() => arch_update_hw_pressure() Now that cpufreq provides a pressure value to the scheduler, rename arch_update_thermal_pressure into HW pressure to reflect that it returns a pressure applied by HW (i.e. with a high frequency change) and not always related to thermal mitigation but also generated by max current limitation as an example. Such high frequency signal needs filtering to be smoothed and provide an value that reflects the average available capacity into the scheduler time scale. Signed-off-by: Vincent Guittot Signed-off-by: Ingo Molnar Tested-by: Lukasz Luba Reviewed-by: Qais Yousef Reviewed-by: Lukasz Luba Link: https://lore.kernel.org/r/20240326091616.3696851-5-vincent.guittot@linaro.org --- include/trace/events/hw_pressure.h | 29 +++++++++++++++++++++++++++++ include/trace/events/sched.h | 2 +- include/trace/events/thermal_pressure.h | 29 ----------------------------- 3 files changed, 30 insertions(+), 30 deletions(-) create mode 100644 include/trace/events/hw_pressure.h delete mode 100644 include/trace/events/thermal_pressure.h (limited to 'include/trace') diff --git a/include/trace/events/hw_pressure.h b/include/trace/events/hw_pressure.h new file mode 100644 index 000000000000..b9cd68854128 --- /dev/null +++ b/include/trace/events/hw_pressure.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM hw_pressure + +#if !defined(_TRACE_THERMAL_PRESSURE_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_THERMAL_PRESSURE_H + +#include + +TRACE_EVENT(hw_pressure_update, + TP_PROTO(int cpu, unsigned long hw_pressure), + TP_ARGS(cpu, hw_pressure), + + TP_STRUCT__entry( + __field(unsigned long, hw_pressure) + __field(int, cpu) + ), + + TP_fast_assign( + __entry->hw_pressure = hw_pressure; + __entry->cpu = cpu; + ), + + TP_printk("cpu=%d hw_pressure=%lu", __entry->cpu, __entry->hw_pressure) +); +#endif /* _TRACE_THERMAL_PRESSURE_H */ + +/* This part must be outside protection */ +#include diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h index dbb01b4b7451..d115d64c4011 100644 --- a/include/trace/events/sched.h +++ b/include/trace/events/sched.h @@ -752,7 +752,7 @@ DECLARE_TRACE(pelt_dl_tp, TP_PROTO(struct rq *rq), TP_ARGS(rq)); -DECLARE_TRACE(pelt_thermal_tp, +DECLARE_TRACE(pelt_hw_tp, TP_PROTO(struct rq *rq), TP_ARGS(rq)); diff --git a/include/trace/events/thermal_pressure.h b/include/trace/events/thermal_pressure.h deleted file mode 100644 index b68680201360..000000000000 --- a/include/trace/events/thermal_pressure.h +++ /dev/null @@ -1,29 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#undef TRACE_SYSTEM -#define TRACE_SYSTEM thermal_pressure - -#if !defined(_TRACE_THERMAL_PRESSURE_H) || defined(TRACE_HEADER_MULTI_READ) -#define _TRACE_THERMAL_PRESSURE_H - -#include - -TRACE_EVENT(thermal_pressure_update, - TP_PROTO(int cpu, unsigned long thermal_pressure), - TP_ARGS(cpu, thermal_pressure), - - TP_STRUCT__entry( - __field(unsigned long, thermal_pressure) - __field(int, cpu) - ), - - TP_fast_assign( - __entry->thermal_pressure = thermal_pressure; - __entry->cpu = cpu; - ), - - TP_printk("cpu=%d thermal_pressure=%lu", __entry->cpu, __entry->thermal_pressure) -); -#endif /* _TRACE_THERMAL_PRESSURE_H */ - -/* This part must be outside protection */ -#include -- cgit v1.2.3