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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
cpufreq: powernv/tracing: Add powernv_throttle tracepoint
This patch adds the powernv_throttle tracepoint to trace the CPU
frequency throttling event, which is used by the powernv-cpufreq
driver in POWER8.
Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
authored by
Shilpasri G Bhat
and committed by
Rafael J. Wysocki
0306e481
96c4726f
+23
+22
include/trace/events/power.h
+22
include/trace/events/power.h
···
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TP_ARGS(state, cpu_id)
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);
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TRACE_EVENT(powernv_throttle,
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+
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TP_PROTO(int chip_id, const char *reason, int pmax),
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TP_ARGS(chip_id, reason, pmax),
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TP_STRUCT__entry(
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__field(int, chip_id)
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__string(reason, reason)
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__field(int, pmax)
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),
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TP_fast_assign(
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__entry->chip_id = chip_id;
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__assign_str(reason, reason);
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__entry->pmax = pmax;
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),
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TP_printk("Chip %d Pmax %d %s", __entry->chip_id,
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__entry->pmax, __get_str(reason))
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);
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+
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TRACE_EVENT(pstate_sample,
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TP_PROTO(u32 core_busy,