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ANDROID: vendor_hooks: Add hooks for cpufreq_acct_update_power

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We want to record the cputime of each running process by adding
hooks for cpufreq_acct_update_power.

Bug: 186604985

Signed-off-by: zhengding chen <chenzhengding@oppo.com>
Change-Id: I35e38be4680781df3338b4a01041922294aecaa0
This commit is contained in:
zhengding chen
2021-06-01 20:59:53 +08:00
parent 7a36600f99
commit 3983753280
3 changed files with 8 additions and 0 deletions
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1
drivers/android/vendor_hooks.c
View File

@@ -298,3 +298,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_save_vmalloc_stack);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_show_stack_hash);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_save_track_hash);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_set_task_comm);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpufreq_acct_update_power);

3
drivers/cpufreq/cpufreq_times.c
View File

@@ -21,6 +21,7 @@
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/threads.h>
#include <trace/hooks/cpufreq.h>
static DEFINE_SPINLOCK(task_time_in_state_lock); /* task->time_in_state */
@@ -146,6 +147,8 @@ void cpufreq_acct_update_power(struct task_struct *p, u64 cputime)
p->time_in_state)
p->time_in_state[state] += cputime;
spin_unlock_irqrestore(&task_time_in_state_lock, flags);
trace_android_vh_cpufreq_acct_update_power(cputime, p, state);
}
static int cpufreq_times_get_index(struct cpu_freqs *freqs, unsigned int freq)

4
include/trace/hooks/cpufreq.h
View File

@@ -20,6 +20,10 @@ DECLARE_HOOK(android_vh_freq_table_limits,
unsigned int max_freq),
TP_ARGS(policy, min_freq, max_freq));
DECLARE_HOOK(android_vh_cpufreq_acct_update_power,
TP_PROTO(u64 cputime, struct task_struct *p, unsigned int state),
TP_ARGS(cputime, p, state));
DECLARE_RESTRICTED_HOOK(android_rvh_cpufreq_transition,
TP_PROTO(struct cpufreq_policy *policy),
TP_ARGS(policy), 1);