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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>
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@ -137,7 +137,7 @@ scmi_get_cpu_power(struct device *cpu_dev, unsigned long *power,
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static int scmi_cpufreq_init(struct cpufreq_policy *policy)
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{
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int ret, nr_opp;
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int ret, nr_opp, domain;
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unsigned int latency;
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struct device *cpu_dev;
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struct scmi_data *priv;
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@ -149,6 +149,10 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy)
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return -ENODEV;
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}
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domain = scmi_cpu_domain_id(cpu_dev);
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if (domain < 0)
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return domain;
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priv = kzalloc(sizeof(*priv), GFP_KERNEL);
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if (!priv)
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return -ENOMEM;
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@ -187,7 +191,7 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy)
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*/
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nr_opp = dev_pm_opp_get_opp_count(cpu_dev);
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if (nr_opp <= 0) {
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ret = perf_ops->device_opps_add(ph, cpu_dev);
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ret = perf_ops->device_opps_add(ph, cpu_dev, domain);
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if (ret) {
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dev_warn(cpu_dev, "failed to add opps to the device\n");
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goto out_free_cpumask;
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@ -220,7 +224,7 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy)
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}
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priv->cpu_dev = cpu_dev;
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priv->domain_id = scmi_cpu_domain_id(cpu_dev);
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priv->domain_id = domain;
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policy->driver_data = priv;
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policy->freq_table = freq_table;
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@ -228,14 +232,14 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy)
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/* SCMI allows DVFS request for any domain from any CPU */
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policy->dvfs_possible_from_any_cpu = true;
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latency = perf_ops->transition_latency_get(ph, cpu_dev);
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latency = perf_ops->transition_latency_get(ph, domain);
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if (!latency)
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latency = CPUFREQ_ETERNAL;
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policy->cpuinfo.transition_latency = latency;
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policy->fast_switch_possible =
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perf_ops->fast_switch_possible(ph, cpu_dev);
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perf_ops->fast_switch_possible(ph, domain);
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return 0;
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@ -795,17 +795,13 @@ static int scmi_dev_domain_id(struct device *dev)
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}
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static int scmi_dvfs_device_opps_add(const struct scmi_protocol_handle *ph,
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struct device *dev)
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struct device *dev, u32 domain)
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{
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int idx, ret, domain;
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int idx, ret;
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unsigned long freq;
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struct scmi_opp *opp;
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struct perf_dom_info *dom;
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domain = scmi_dev_domain_id(dev);
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if (domain < 0)
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return -EINVAL;
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dom = scmi_perf_domain_lookup(ph, domain);
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if (IS_ERR(dom))
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return PTR_ERR(dom);
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@ -838,15 +834,10 @@ static int scmi_dvfs_device_opps_add(const struct scmi_protocol_handle *ph,
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static int
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scmi_dvfs_transition_latency_get(const struct scmi_protocol_handle *ph,
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struct device *dev)
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u32 domain)
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{
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int domain;
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struct perf_dom_info *dom;
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domain = scmi_dev_domain_id(dev);
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if (domain < 0)
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return -EINVAL;
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dom = scmi_perf_domain_lookup(ph, domain);
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if (IS_ERR(dom))
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return PTR_ERR(dom);
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@ -942,15 +933,10 @@ static int scmi_dvfs_est_power_get(const struct scmi_protocol_handle *ph,
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}
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static bool scmi_fast_switch_possible(const struct scmi_protocol_handle *ph,
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struct device *dev)
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u32 domain)
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{
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int domain;
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struct perf_dom_info *dom;
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domain = scmi_dev_domain_id(dev);
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if (domain < 0)
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return false;
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dom = scmi_perf_domain_lookup(ph, domain);
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if (IS_ERR(dom))
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return false;
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@ -149,9 +149,9 @@ struct scmi_perf_proto_ops {
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u32 *level, bool poll);
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int (*device_domain_id)(struct device *dev);
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int (*transition_latency_get)(const struct scmi_protocol_handle *ph,
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struct device *dev);
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u32 domain);
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int (*device_opps_add)(const struct scmi_protocol_handle *ph,
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struct device *dev);
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struct device *dev, u32 domain);
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int (*freq_set)(const struct scmi_protocol_handle *ph, u32 domain,
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unsigned long rate, bool poll);
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int (*freq_get)(const struct scmi_protocol_handle *ph, u32 domain,
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@ -159,7 +159,7 @@ struct scmi_perf_proto_ops {
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int (*est_power_get)(const struct scmi_protocol_handle *ph, u32 domain,
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unsigned long *rate, unsigned long *power);
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bool (*fast_switch_possible)(const struct scmi_protocol_handle *ph,
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struct device *dev);
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u32 domain);
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enum scmi_power_scale (*power_scale_get)(const struct scmi_protocol_handle *ph);
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};
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