diff options
| author | Ulf Hansson <ulf.hansson@linaro.org> | 2023-08-25 13:26:24 +0200 |
|---|---|---|
| committer | Sudeep Holla <sudeep.holla@arm.com> | 2023-09-21 16:24:27 +0100 |
| commit | 39dfa5b9e1f0fa63b811a0a87f1c2fb9c76a0456 (patch) | |
| tree | 6d160b4d7e2ecd532b0aa9817cc3b02abbef7064 /drivers/cpufreq | |
| parent | e336baa4193ecc788a06c0c4659e400bb53689b4 (diff) | |
| download | linux-39dfa5b9e1f0fa63b811a0a87f1c2fb9c76a0456.tar.gz | |
firmware: arm_scmi: Align perf ops to use domain-id as in-parameter
Most scmi_perf_proto_ops are already using an "u32 domain" as an
in-parameter to indicate what performance domain we shall operate upon.
However, some of the ops are using a "struct device *dev", which means that
an additional OF parsing is needed each time the perf ops gets called, to
find the corresponding domain-id.
To avoid the above, but also to make the code more consistent, let's
replace the in-parameter "struct device *dev" with an "u32 domain". Note
that, this requires us to make some corresponding changes to the scmi
cpufreq driver, so let's do that too.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20230825112633.236607-5-ulf.hansson@linaro.org
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/scmi-cpufreq.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/cpufreq/scmi-cpufreq.c b/drivers/cpufreq/scmi-cpufreq.c index 7d05d48c0337b..125e8a8421fb9 100644 --- a/drivers/cpufreq/scmi-cpufreq.c +++ b/drivers/cpufreq/scmi-cpufreq.c @@ -137,7 +137,7 @@ scmi_get_cpu_power(struct device *cpu_dev, unsigned long *power, static int scmi_cpufreq_init(struct cpufreq_policy *policy) { - int ret, nr_opp; + int ret, nr_opp, domain; unsigned int latency; struct device *cpu_dev; struct scmi_data *priv; @@ -149,6 +149,10 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy) return -ENODEV; } + domain = scmi_cpu_domain_id(cpu_dev); + if (domain < 0) + return domain; + priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; @@ -187,7 +191,7 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy) */ nr_opp = dev_pm_opp_get_opp_count(cpu_dev); if (nr_opp <= 0) { - ret = perf_ops->device_opps_add(ph, cpu_dev); + ret = perf_ops->device_opps_add(ph, cpu_dev, domain); if (ret) { dev_warn(cpu_dev, "failed to add opps to the device\n"); goto out_free_cpumask; @@ -220,7 +224,7 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy) } priv->cpu_dev = cpu_dev; - priv->domain_id = scmi_cpu_domain_id(cpu_dev); + priv->domain_id = domain; policy->driver_data = priv; policy->freq_table = freq_table; @@ -228,14 +232,14 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy) /* SCMI allows DVFS request for any domain from any CPU */ policy->dvfs_possible_from_any_cpu = true; - latency = perf_ops->transition_latency_get(ph, cpu_dev); + latency = perf_ops->transition_latency_get(ph, domain); if (!latency) latency = CPUFREQ_ETERNAL; policy->cpuinfo.transition_latency = latency; policy->fast_switch_possible = - perf_ops->fast_switch_possible(ph, cpu_dev); + perf_ops->fast_switch_possible(ph, domain); return 0; |