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ANDROID: vendor_hooks: Add hooks for frequency optimization

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These hooks will do the following works:
a) Record the number of times when target_freq being clamped
b) Record the number of times when target_freq is greater than policy->cur
c) Make corresponding optimization strategies in different hooks
d) change the value of target_freq for some scenarios

Bug: 205906618
Bug: 206896672

Change-Id: I8eba66fd0c6d36393ca39045cf228b659834e0ae
Signed-off-by: Liujie Xie <xieliujie@oppo.com>
Signed-off-by: vincent.wang <vincent.wang@unisoc.com>
(cherry picked from commit 7e2fbdaeab)
(cherry picked from commit cf551f380a3c47894accfffc2c8b3d4547a60f9a)
This commit is contained in:
Liujie Xie
2021-11-11 17:05:49 +08:00
committed by Todd Kjos
parent b7464d4ae5
commit d5aece2586
3 changed files with 24 additions and 0 deletions
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3
drivers/android/vendor_hooks.c
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@@ -108,6 +108,9 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_gic_v3_affinity_init);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_show_suspend_epoch_val); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_show_suspend_epoch_val);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_show_resume_epoch_val); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_show_resume_epoch_val);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_freq_table_limits); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_freq_table_limits);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpufreq_resolve_freq);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpufreq_fast_switch);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpufreq_target);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_sched_newidle_balance); EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_sched_newidle_balance);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_sched_nohz_balancer_kick); EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_sched_nohz_balancer_kick);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_sched_rebalance_domains); EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_sched_rebalance_domains);

6
drivers/cpufreq/cpufreq.c
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@@ -532,8 +532,10 @@ static unsigned int __resolve_freq(struct cpufreq_policy *policy,
unsigned int target_freq, unsigned int relation) unsigned int target_freq, unsigned int relation)
{ {
unsigned int idx; unsigned int idx;
unsigned int old_target_freq = target_freq;
target_freq = clamp_val(target_freq, policy->min, policy->max); target_freq = clamp_val(target_freq, policy->min, policy->max);
trace_android_vh_cpufreq_resolve_freq(policy, &target_freq, old_target_freq);
if (!cpufreq_driver->target_index) if (!cpufreq_driver->target_index)
return target_freq; return target_freq;
@@ -2099,9 +2101,11 @@ unsigned int cpufreq_driver_fast_switch(struct cpufreq_policy *policy,
unsigned int target_freq) unsigned int target_freq)
{ {
unsigned int freq; unsigned int freq;
unsigned int old_target_freq = target_freq;
int cpu; int cpu;
target_freq = clamp_val(target_freq, policy->min, policy->max); target_freq = clamp_val(target_freq, policy->min, policy->max);
trace_android_vh_cpufreq_fast_switch(policy, &target_freq, old_target_freq);
freq = cpufreq_driver->fast_switch(policy, target_freq); freq = cpufreq_driver->fast_switch(policy, target_freq);
if (!freq) if (!freq)
@@ -2259,6 +2263,8 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy,
target_freq = __resolve_freq(policy, target_freq, relation); target_freq = __resolve_freq(policy, target_freq, relation);
trace_android_vh_cpufreq_target(policy, &target_freq, old_target_freq);
pr_debug("target for CPU %u: %u kHz, relation %u, requested %u kHz\n", pr_debug("target for CPU %u: %u kHz, relation %u, requested %u kHz\n",
policy->cpu, target_freq, relation, old_target_freq); policy->cpu, target_freq, relation, old_target_freq);

15
include/trace/hooks/cpufreq.h
View File

@@ -24,6 +24,21 @@ DECLARE_RESTRICTED_HOOK(android_rvh_cpufreq_transition,
TP_PROTO(struct cpufreq_policy *policy), TP_PROTO(struct cpufreq_policy *policy),
TP_ARGS(policy), 1); TP_ARGS(policy), 1);
DECLARE_HOOK(android_vh_cpufreq_resolve_freq,
TP_PROTO(struct cpufreq_policy *policy, unsigned int *target_freq,
unsigned int old_target_freq),
TP_ARGS(policy, target_freq, old_target_freq));
DECLARE_HOOK(android_vh_cpufreq_fast_switch,
TP_PROTO(struct cpufreq_policy *policy, unsigned int *target_freq,
unsigned int old_target_freq),
TP_ARGS(policy, target_freq, old_target_freq));
DECLARE_HOOK(android_vh_cpufreq_target,
TP_PROTO(struct cpufreq_policy *policy, unsigned int *target_freq,
unsigned int old_target_freq),
TP_ARGS(policy, target_freq, old_target_freq));
#endif /* _TRACE_HOOK_CPUFREQ_H */ #endif /* _TRACE_HOOK_CPUFREQ_H */
/* This part must be outside protection */ /* This part must be outside protection */
#include <trace/define_trace.h> #include <trace/define_trace.h>