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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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b5f9fd0f8a
Convert the c/p state "power" tracer to use tracepoints. Avoids a function call when the tracer is disabled. Signed-off-by: Jason Baron <jbaron@redhat.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Steven Rostedt <srostedt@redhat.com>
35 lines
649 B
C
35 lines
649 B
C
#ifndef _TRACE_POWER_H
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#define _TRACE_POWER_H
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#include <linux/ktime.h>
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#include <linux/tracepoint.h>
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enum {
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POWER_NONE = 0,
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POWER_CSTATE = 1,
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POWER_PSTATE = 2,
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};
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struct power_trace {
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#ifdef CONFIG_POWER_TRACER
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ktime_t stamp;
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ktime_t end;
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int type;
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int state;
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#endif
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};
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DECLARE_TRACE(power_start,
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TPPROTO(struct power_trace *it, unsigned int type, unsigned int state),
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TPARGS(it, type, state));
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DECLARE_TRACE(power_mark,
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TPPROTO(struct power_trace *it, unsigned int type, unsigned int state),
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TPARGS(it, type, state));
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DECLARE_TRACE(power_end,
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TPPROTO(struct power_trace *it),
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TPARGS(it));
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#endif /* _TRACE_POWER_H */
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