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Message-ID: <20240328074131.2839871-2-quic_sibis@quicinc.com>
Date: Thu, 28 Mar 2024 13:11:30 +0530
From: Sibi Sankar <quic_sibis@...cinc.com>
To: <sudeep.holla@....com>, <cristian.marussi@....com>, <rafael@...nel.org>,
<viresh.kumar@...aro.org>, <morten.rasmussen@....com>,
<dietmar.eggemann@....com>, <lukasz.luba@....com>,
<pierre.gondois@....com>
CC: <linux-arm-kernel@...ts.infradead.org>, <linux-pm@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <quic_mdtipton@...cinc.com>,
<linux-arm-msm@...r.kernel.org>, Sibi Sankar <quic_sibis@...cinc.com>
Subject: [PATCH V4 1/2] cpufreq: Export cpufreq_update_pressure
The SCMI cpufreq driver doesn't require any additional signal
smoothing provided by arch_update_hw_pressure interface, export
cpufreq_update_pressure so that it can be called upon directly
instead.
Suggested-by: Lukasz Luba <lukasz.luba@....com>
Signed-off-by: Sibi Sankar <quic_sibis@...cinc.com>
---
v4:
* Use EXPORT_SYMBOL_GPL instead. [Trilok]
drivers/cpufreq/cpufreq.c | 3 ++-
include/linux/cpufreq.h | 2 ++
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 1de8bd105934..656320554bb7 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -2590,7 +2590,7 @@ DEFINE_PER_CPU(unsigned long, cpufreq_pressure);
*
* Update the value of cpufreq pressure for all @cpus in the policy.
*/
-static void cpufreq_update_pressure(struct cpufreq_policy *policy)
+void cpufreq_update_pressure(struct cpufreq_policy *policy)
{
unsigned long max_capacity, capped_freq, pressure;
u32 max_freq;
@@ -2615,6 +2615,7 @@ static void cpufreq_update_pressure(struct cpufreq_policy *policy)
for_each_cpu(cpu, policy->related_cpus)
WRITE_ONCE(per_cpu(cpufreq_pressure, cpu), pressure);
}
+EXPORT_SYMBOL_GPL(cpufreq_update_pressure);
/**
* cpufreq_set_policy - Modify cpufreq policy parameters.
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 20f7e98ee8af..7410a1bade23 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -241,6 +241,7 @@ struct kobject *get_governor_parent_kobj(struct cpufreq_policy *policy);
void cpufreq_enable_fast_switch(struct cpufreq_policy *policy);
void cpufreq_disable_fast_switch(struct cpufreq_policy *policy);
bool has_target_index(void);
+void cpufreq_update_pressure(struct cpufreq_policy *policy);
DECLARE_PER_CPU(unsigned long, cpufreq_pressure);
static inline unsigned long cpufreq_get_pressure(int cpu)
@@ -270,6 +271,7 @@ static inline bool cpufreq_supports_freq_invariance(void)
}
static inline void disable_cpufreq(void) { }
static inline void cpufreq_update_limits(unsigned int cpu) { }
+static inline void cpufreq_update_pressure(struct cpufreq_policy *policy) { }
static inline unsigned long cpufreq_get_pressure(int cpu)
{
return 0;
--
2.34.1
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