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cpuidle: lpm-levels: no hotplug for single core

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Register for hotplug and dev_pm_qos notification only
for SMP so covering under CONFIG_SMP flag.

Change-Id: Ic3da9648a4dd5c762cd97dbb9f1915f79bd2481e
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Tushar Nimkar <tnimkar@codeaurora.org>
This commit is contained in:
Lina Iyer 2020-05-06 15:49:51 -06:00 • committed by Tushar Nimkar
commit 963b168fc2
1 changed files with 8 additions and 3 deletions
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11
drivers/cpuidle/lpm-levels.c
View file

@ -121,12 +121,14 @@ static void cluster_prepare(struct lpm_cluster *cluster,
static bool sleep_disabled;
module_param_named(sleep_disabled, sleep_disabled, bool, 0664);
#ifdef CONFIG_SMP
static int lpm_cpu_qos_notify(struct notifier_block *nb,
unsigned long val, void *ptr);
static struct notifier_block dev_pm_qos_nb[MAX_LPM_CPUS] = {
[0 ... (MAX_LPM_CPUS - 1)] = { .notifier_call = lpm_cpu_qos_notify },
};
#endif
#ifdef CONFIG_SCHED_WALT
static bool check_cpu_isolated(int cpu)
@ -140,6 +142,7 @@ static bool check_cpu_isolated(int cpu)
}
#endif
#ifdef CONFIG_SMP
static int lpm_cpu_qos_notify(struct notifier_block *nb,
unsigned long val, void *ptr)
{
@ -171,6 +174,7 @@ static int lpm_online_cpu(unsigned int cpu)
DEV_PM_QOS_RESUME_LATENCY);
return 0;
}
#endif
/**
* msm_cpuidle_get_deep_idle_latency - Get deep idle latency value
@ -219,6 +223,7 @@ static void update_debug_pc_event(enum debug_event event, uint32_t arg1,
spin_unlock(&debug_lock);
}
#ifdef CONFIG_SMP
static int lpm_dying_cpu(unsigned int cpu)
{
struct lpm_cluster *cluster = per_cpu(cpu_lpm, cpu)->parent;
@ -241,7 +246,7 @@ static int lpm_starting_cpu(unsigned int cpu)
0, true);
return 0;
}
#endif
static void histtimer_cancel(void)
{
unsigned int cpu = raw_smp_processor_id();
@ -1695,7 +1700,7 @@ static int lpm_probe(struct platform_device *pdev)
pr_err("Failed to register with cpuidle framework\n");
goto failed;
}
#ifdef CONFIG_SMP
ret = cpuhp_setup_state(CPUHP_AP_QCOM_TIMER_STARTING,
"AP_QCOM_SLEEP_STARTING",
lpm_starting_cpu, lpm_dying_cpu);
@ -1707,7 +1712,7 @@ static int lpm_probe(struct platform_device *pdev)
lpm_online_cpu, lpm_offline_cpu);
if (ret)
goto failed;
#endif
module_kobj = kset_find_obj(module_kset, KBUILD_MODNAME);
if (!module_kobj) {
pr_err("Cannot find kobject for module %s\n", KBUILD_MODNAME);