[PATCH v5 8/8] cpufreq: scmi: Read inefficiencies from EM
From: Vincent Donnefort <hidden>
Date: 2021-08-26 08:36:37
Subsystem:
cpu frequency scaling framework, system control & power/management interface (scpi/scmi) message protocol drivers, the rest · Maintainers:
"Rafael J. Wysocki", Viresh Kumar, Sudeep Holla, Linus Torvalds
The Energy Model has a 1:1 mapping between OPPs and performance states (em_perf_state). If a CPUFreq driver registers an Energy Model, inefficiencies found by the latter can be applied to CPUFreq. Signed-off-by: Vincent Donnefort <redacted>
diff --git a/drivers/cpufreq/scmi-cpufreq.c b/drivers/cpufreq/scmi-cpufreq.c
index 1e0cd4d165f0..f4fd634d2ecd 100644
--- a/drivers/cpufreq/scmi-cpufreq.c
+++ b/drivers/cpufreq/scmi-cpufreq.c@@ -250,6 +250,7 @@ static void scmi_cpufreq_register_em(struct cpufreq_policy *policy) { struct em_data_callback em_cb = EM_DATA_CB(scmi_get_cpu_power); bool power_scale_mw = perf_ops->power_scale_mw_get(ph); + struct device *cpu_dev = get_cpu_device(policy->cpu); struct scmi_data *priv = policy->driver_data; /*
@@ -262,9 +263,9 @@ static void scmi_cpufreq_register_em(struct cpufreq_policy *policy) if (!priv->nr_opp) return; - em_dev_register_perf_domain(get_cpu_device(policy->cpu), priv->nr_opp, - &em_cb, priv->opp_shared_cpus, - power_scale_mw); + em_dev_register_perf_domain(cpu_dev, priv->nr_opp, &em_cb, + priv->opp_shared_cpus, power_scale_mw); + cpufreq_read_inefficiencies_from_em(policy, em_pd_get(cpu_dev)); } static struct cpufreq_driver scmi_cpufreq_driver = {
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2.7.4