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