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cpu_cooling: Drop static-power related stuff
No one has used it for the last two and half years (since it was
introduced by commit c36cf07176 (thermal: cpu_cooling: implement the
power cooling device API), get rid of it.
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Viresh Kumar
Rafael J. Wysocki
parent
3ebb62ffc4
commit
84fe2cab48
@ -88,7 +88,6 @@ struct time_in_idle {
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* @policy: cpufreq policy.
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* @node: list_head to link all cpufreq_cooling_device together.
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* @idle_time: idle time stats
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* @plat_get_static_power: callback to calculate the static power
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*
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* This structure is required for keeping information of each registered
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* cpufreq_cooling_device.
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@ -104,7 +103,6 @@ struct cpufreq_cooling_device {
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struct cpufreq_policy *policy;
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struct list_head node;
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struct time_in_idle *idle_time;
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get_static_t plat_get_static_power;
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};
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static DEFINE_IDA(cpufreq_ida);
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@ -318,60 +316,6 @@ static u32 get_load(struct cpufreq_cooling_device *cpufreq_cdev, int cpu,
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return load;
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}
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/**
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* get_static_power() - calculate the static power consumed by the cpus
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* @cpufreq_cdev: struct &cpufreq_cooling_device for this cpu cdev
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* @tz: thermal zone device in which we're operating
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* @freq: frequency in KHz
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* @power: pointer in which to store the calculated static power
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*
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* Calculate the static power consumed by the cpus described by
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* @cpu_actor running at frequency @freq. This function relies on a
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* platform specific function that should have been provided when the
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* actor was registered. If it wasn't, the static power is assumed to
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* be negligible. The calculated static power is stored in @power.
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*
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* Return: 0 on success, -E* on failure.
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*/
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static int get_static_power(struct cpufreq_cooling_device *cpufreq_cdev,
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struct thermal_zone_device *tz, unsigned long freq,
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u32 *power)
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{
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struct dev_pm_opp *opp;
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unsigned long voltage;
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struct cpufreq_policy *policy = cpufreq_cdev->policy;
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struct cpumask *cpumask = policy->related_cpus;
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unsigned long freq_hz = freq * 1000;
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struct device *dev;
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if (!cpufreq_cdev->plat_get_static_power) {
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*power = 0;
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return 0;
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}
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dev = get_cpu_device(policy->cpu);
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WARN_ON(!dev);
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opp = dev_pm_opp_find_freq_exact(dev, freq_hz, true);
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if (IS_ERR(opp)) {
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dev_warn_ratelimited(dev, "Failed to find OPP for frequency %lu: %ld\n",
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freq_hz, PTR_ERR(opp));
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return -EINVAL;
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}
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voltage = dev_pm_opp_get_voltage(opp);
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dev_pm_opp_put(opp);
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if (voltage == 0) {
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dev_err_ratelimited(dev, "Failed to get voltage for frequency %lu\n",
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freq_hz);
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return -EINVAL;
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}
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return cpufreq_cdev->plat_get_static_power(cpumask, tz->passive_delay,
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voltage, power);
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}
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/**
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* get_dynamic_power() - calculate the dynamic power
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* @cpufreq_cdev: &cpufreq_cooling_device for this cdev
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@ -491,8 +435,8 @@ static int cpufreq_get_requested_power(struct thermal_cooling_device *cdev,
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u32 *power)
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{
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unsigned long freq;
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int i = 0, cpu, ret;
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u32 static_power, dynamic_power, total_load = 0;
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int i = 0, cpu;
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u32 total_load = 0;
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struct cpufreq_cooling_device *cpufreq_cdev = cdev->devdata;
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struct cpufreq_policy *policy = cpufreq_cdev->policy;
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u32 *load_cpu = NULL;
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@ -522,22 +466,15 @@ static int cpufreq_get_requested_power(struct thermal_cooling_device *cdev,
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cpufreq_cdev->last_load = total_load;
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dynamic_power = get_dynamic_power(cpufreq_cdev, freq);
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ret = get_static_power(cpufreq_cdev, tz, freq, &static_power);
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if (ret) {
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kfree(load_cpu);
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return ret;
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}
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*power = get_dynamic_power(cpufreq_cdev, freq);
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if (load_cpu) {
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trace_thermal_power_cpu_get_power(policy->related_cpus, freq,
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load_cpu, i, dynamic_power,
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static_power);
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load_cpu, i, *power);
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kfree(load_cpu);
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}
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*power = static_power + dynamic_power;
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return 0;
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}
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@ -561,8 +498,6 @@ static int cpufreq_state2power(struct thermal_cooling_device *cdev,
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unsigned long state, u32 *power)
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{
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unsigned int freq, num_cpus;
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u32 static_power, dynamic_power;
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int ret;
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struct cpufreq_cooling_device *cpufreq_cdev = cdev->devdata;
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/* Request state should be less than max_level */
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@ -572,13 +507,9 @@ static int cpufreq_state2power(struct thermal_cooling_device *cdev,
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num_cpus = cpumask_weight(cpufreq_cdev->policy->cpus);
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freq = cpufreq_cdev->freq_table[state].frequency;
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dynamic_power = cpu_freq_to_power(cpufreq_cdev, freq) * num_cpus;
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ret = get_static_power(cpufreq_cdev, tz, freq, &static_power);
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if (ret)
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return ret;
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*power = cpu_freq_to_power(cpufreq_cdev, freq) * num_cpus;
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*power = static_power + dynamic_power;
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return ret;
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return 0;
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}
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/**
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@ -606,21 +537,14 @@ static int cpufreq_power2state(struct thermal_cooling_device *cdev,
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unsigned long *state)
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{
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unsigned int cur_freq, target_freq;
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int ret;
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s32 dyn_power;
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u32 last_load, normalised_power, static_power;
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u32 last_load, normalised_power;
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struct cpufreq_cooling_device *cpufreq_cdev = cdev->devdata;
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struct cpufreq_policy *policy = cpufreq_cdev->policy;
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cur_freq = cpufreq_quick_get(policy->cpu);
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ret = get_static_power(cpufreq_cdev, tz, cur_freq, &static_power);
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if (ret)
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return ret;
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dyn_power = power - static_power;
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dyn_power = dyn_power > 0 ? dyn_power : 0;
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power = power > 0 ? power : 0;
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last_load = cpufreq_cdev->last_load ?: 1;
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normalised_power = (dyn_power * 100) / last_load;
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normalised_power = (power * 100) / last_load;
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target_freq = cpu_power_to_freq(cpufreq_cdev, normalised_power);
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*state = get_level(cpufreq_cdev, target_freq);
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@ -671,8 +595,6 @@ static unsigned int find_next_max(struct cpufreq_frequency_table *table,
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* @policy: cpufreq policy
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* Normally this should be same as cpufreq policy->related_cpus.
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* @capacitance: dynamic power coefficient for these cpus
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* @plat_static_func: function to calculate the static power consumed by these
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* cpus (optional)
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*
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* This interface function registers the cpufreq cooling device with the name
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* "thermal-cpufreq-%x". This api can support multiple instances of cpufreq
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@ -684,8 +606,7 @@ static unsigned int find_next_max(struct cpufreq_frequency_table *table,
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*/
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static struct thermal_cooling_device *
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__cpufreq_cooling_register(struct device_node *np,
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struct cpufreq_policy *policy, u32 capacitance,
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get_static_t plat_static_func)
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struct cpufreq_policy *policy, u32 capacitance)
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{
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struct thermal_cooling_device *cdev;
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struct cpufreq_cooling_device *cpufreq_cdev;
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@ -755,8 +676,6 @@ __cpufreq_cooling_register(struct device_node *np,
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}
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if (capacitance) {
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cpufreq_cdev->plat_get_static_power = plat_static_func;
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ret = update_freq_table(cpufreq_cdev, capacitance);
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if (ret) {
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cdev = ERR_PTR(ret);
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@ -813,7 +732,7 @@ free_cdev:
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struct thermal_cooling_device *
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cpufreq_cooling_register(struct cpufreq_policy *policy)
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{
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return __cpufreq_cooling_register(NULL, policy, 0, NULL);
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return __cpufreq_cooling_register(NULL, policy, 0);
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}
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EXPORT_SYMBOL_GPL(cpufreq_cooling_register);
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@ -853,8 +772,7 @@ of_cpufreq_cooling_register(struct cpufreq_policy *policy)
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of_property_read_u32(np, "dynamic-power-coefficient",
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&capacitance);
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cdev = __cpufreq_cooling_register(np, policy, capacitance,
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NULL);
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cdev = __cpufreq_cooling_register(np, policy, capacitance);
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if (IS_ERR(cdev)) {
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pr_err("cpu_cooling: cpu%d is not running as cooling device: %ld\n",
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policy->cpu, PTR_ERR(cdev));
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@ -30,9 +30,6 @@
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struct cpufreq_policy;
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typedef int (*get_static_t)(cpumask_t *cpumask, int interval,
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unsigned long voltage, u32 *power);
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#ifdef CONFIG_CPU_THERMAL
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/**
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* cpufreq_cooling_register - function to create cpufreq cooling device.
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@ -94,9 +94,9 @@ TRACE_EVENT(thermal_zone_trip,
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#ifdef CONFIG_CPU_THERMAL
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TRACE_EVENT(thermal_power_cpu_get_power,
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TP_PROTO(const struct cpumask *cpus, unsigned long freq, u32 *load,
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size_t load_len, u32 dynamic_power, u32 static_power),
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size_t load_len, u32 dynamic_power),
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TP_ARGS(cpus, freq, load, load_len, dynamic_power, static_power),
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TP_ARGS(cpus, freq, load, load_len, dynamic_power),
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TP_STRUCT__entry(
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__bitmask(cpumask, num_possible_cpus())
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@ -104,7 +104,6 @@ TRACE_EVENT(thermal_power_cpu_get_power,
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__dynamic_array(u32, load, load_len)
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__field(size_t, load_len )
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__field(u32, dynamic_power )
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__field(u32, static_power )
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),
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TP_fast_assign(
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@ -115,13 +114,12 @@ TRACE_EVENT(thermal_power_cpu_get_power,
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load_len * sizeof(*load));
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__entry->load_len = load_len;
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__entry->dynamic_power = dynamic_power;
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__entry->static_power = static_power;
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),
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TP_printk("cpus=%s freq=%lu load={%s} dynamic_power=%d static_power=%d",
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TP_printk("cpus=%s freq=%lu load={%s} dynamic_power=%d",
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__get_bitmask(cpumask), __entry->freq,
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__print_array(__get_dynamic_array(load), __entry->load_len, 4),
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__entry->dynamic_power, __entry->static_power)
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__entry->dynamic_power)
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);
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TRACE_EVENT(thermal_power_cpu_limit,
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