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sched/walt: initiate initialization after topology

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The proper kernel provides tracehooks to indicate when its done
initializing topology. Use that hook to simplify walt initialization.

Change-Id: Ifa7540f2f65bf469c1f8007bb15d5e1317475929
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
This commit is contained in:
Abhijeet Dharmapurikar 2021-05-24 23:50:39 -07:00 committed by Rishabh Bhatnagar
parent b053fa9fdc
commit 808c1b4e14
1 changed files with 5 additions and 34 deletions
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39
kernel/sched/walt/walt.c
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@ -16,6 +16,7 @@
#include <trace/hooks/sched.h>
#include <trace/hooks/cpufreq.h>
#include <trace/hooks/topology.h>
#include <trace/events/power.h>
#include "walt.h"
@ -4214,38 +4215,9 @@ static void walt_init(void)
}
}
static bool are_cpufreq_policies_available(void)
{
int cpu;
for_each_possible_cpu(cpu) {
if (!cpufreq_cpu_get_raw(cpu))
return false;
}
return true;
}
struct work_struct walt_cpufreq_policy_work;
static int walt_cpufreq_notifier_cb(struct notifier_block *nb,
unsigned long action,
void *data)
{
if (are_cpufreq_policies_available())
schedule_work(&walt_cpufreq_policy_work);
return 0;
}
static struct notifier_block walt_cpufreq_notifier_block = {
.notifier_call = walt_cpufreq_notifier_cb
};
static void walt_wq_cpufreq_policy_update(struct work_struct *work)
static void android_vh_update_topology_flags_workfn(void *unused, void *unused2)
{
walt_init();
cpufreq_unregister_notifier(&walt_cpufreq_notifier_block, CPUFREQ_POLICY_NOTIFIER);
}
#define WALT_VENDOR_DATA_SIZE_TEST(wstruct, kstruct) \
@ -4259,11 +4231,10 @@ static int walt_module_init(void)
WALT_VENDOR_DATA_SIZE_TEST(struct walt_rq, struct rq);
WALT_VENDOR_DATA_SIZE_TEST(struct walt_task_group, struct task_group);
INIT_WORK(&walt_cpufreq_policy_work, walt_wq_cpufreq_policy_update);
cpufreq_register_notifier(&walt_cpufreq_notifier_block,
CPUFREQ_POLICY_NOTIFIER);
register_trace_android_vh_update_topology_flags_workfn(
android_vh_update_topology_flags_workfn, NULL);
if (are_cpufreq_policies_available())
if (topology_update_done)
walt_init();
return 0;