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ANDROID: cpufreq: Add a restricted vendor hook for freq transition

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A restricted vendor hook for cpufreq transition. The hook is
invoked per policy after changing the policy->cur and passes
policy as an argument.

Bug: 181889516
Change-Id: I6f89850779fdd63e178e227c293f42b7f66fd78d
Signed-off-by: Pavankumar Kondeti <quic_pkondeti@quicinc.com>
This commit is contained in:
Pavankumar Kondeti 2021-03-05 04:31:50 +05:30
parent 4e98107b8c
commit 2d45001d59
3 changed files with 6 additions and 0 deletions
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1
drivers/android/vendor_hooks.c
View File

@ -171,3 +171,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ufs_check_int_errors);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_do_wake_up_sync);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_set_wake_flags);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_uclamp_eff_value);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_cpufreq_transition);

2
drivers/cpufreq/cpufreq.c
View File

@ -391,6 +391,7 @@ static void cpufreq_notify_transition(struct cpufreq_policy *policy,
cpufreq_stats_record_transition(policy, freqs->new);
cpufreq_times_record_transition(policy, freqs->new);
policy->cur = freqs->new;
trace_android_rvh_cpufreq_transition(policy);
}
}
@ -2095,6 +2096,7 @@ unsigned int cpufreq_driver_fast_switch(struct cpufreq_policy *policy,
arch_set_freq_scale(policy->related_cpus, freq,
policy->cpuinfo.max_freq);
cpufreq_stats_record_transition(policy, freq);
trace_android_rvh_cpufreq_transition(policy);
if (trace_cpu_frequency_enabled()) {
for_each_cpu(cpu, policy->cpus)

3
include/trace/hooks/cpufreq.h
View File

@ -20,6 +20,9 @@ DECLARE_HOOK(android_vh_freq_table_limits,
unsigned int max_freq),
TP_ARGS(policy, min_freq, max_freq));
DECLARE_RESTRICTED_HOOK(android_rvh_cpufreq_transition,
TP_PROTO(struct cpufreq_policy *policy),
TP_ARGS(policy), 1);
/* macro versions of hooks are no longer required */
#endif /* _TRACE_HOOK_CPUFREQ_H */