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Commit 12a35edc authored by Saravana Kannan's avatar Saravana Kannan
Browse files

cpufreq: schedutil: Add util update tracepoints 



Add util update trace points to facilitate better debugging.

Change-Id: Ib19911a03fc941bc7db76ab07394e152d0572871
Signed-off-by: default avatarSaravana Kannan <skannan@codeaurora.org>
parent e8450d43

include/trace/events/power.h

+27 −0
Original line number Diff line number Diff line
@@ -767,6 +767,33 @@ TRACE_EVENT(memlat_dev_update, 
		__entry->vote)

);



TRACE_EVENT(sugov_util_update,

	    TP_PROTO(int cpu,

		     unsigned long util, unsigned long max_cap,

		     unsigned long nl, unsigned long pl,

		     unsigned int flags),

	    TP_ARGS(cpu, util, max_cap, nl, pl, flags),

	    TP_STRUCT__entry(

		    __field(	int,		cpu)

		    __field(	unsigned long,	util)

		    __field(	unsigned long,	max_cap)

		    __field(	unsigned long,	nl)

		    __field(	unsigned long,	pl)

		    __field(	unsigned int,	flags)

	    ),

	    TP_fast_assign(

		    __entry->cpu = cpu;

		    __entry->util = util;

		    __entry->max_cap = max_cap;

		    __entry->nl = nl;

		    __entry->pl = pl;

		    __entry->flags = flags;

	    ),

	    TP_printk("cpu=%d util=%lu max_cap=%lu nl=%lu pl=%lu flags=%x",

		      __entry->cpu, __entry->util, __entry->max_cap,

		      __entry->nl, __entry->pl, __entry->flags)

);



#endif /* _TRACE_POWER_H */



/* This part must be outside protection */

kernel/sched/cpufreq_schedutil.c

+4 −0
Original line number Diff line number Diff line
@@ -294,6 +294,10 @@ static void sugov_update_shared(struct update_util_data *hook, u64 time, 
	sugov_set_iowait_boost(sg_cpu, time, flags);

	sg_cpu->last_update = time;



	trace_sugov_util_update(sg_cpu->cpu, sg_cpu->util, max,

				sg_cpu->walt_load.nl,

				sg_cpu->walt_load.pl, flags);



	if (sugov_should_update_freq(sg_policy, time)) {

		next_f = sugov_next_freq_shared(sg_cpu, util, max, flags);

		sugov_update_commit(sg_policy, time, next_f);