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Diffstat (limited to 'include/linux/cpufreq.h')
-rw-r--r--include/linux/cpufreq.h142
1 files changed, 71 insertions, 71 deletions
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 9ca4211c063f..a604c54ae44d 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -241,6 +241,12 @@ struct kobject *get_governor_parent_kobj(struct cpufreq_policy *policy);
void cpufreq_enable_fast_switch(struct cpufreq_policy *policy);
void cpufreq_disable_fast_switch(struct cpufreq_policy *policy);
bool has_target_index(void);
+
+DECLARE_PER_CPU(unsigned long, cpufreq_pressure);
+static inline unsigned long cpufreq_get_pressure(int cpu)
+{
+ return READ_ONCE(per_cpu(cpufreq_pressure, cpu));
+}
#else
static inline unsigned int cpufreq_get(unsigned int cpu)
{
@@ -263,6 +269,11 @@ static inline bool cpufreq_supports_freq_invariance(void)
return false;
}
static inline void disable_cpufreq(void) { }
+static inline void cpufreq_update_limits(unsigned int cpu) { }
+static inline unsigned long cpufreq_get_pressure(int cpu)
+{
+ return 0;
+}
#endif
#ifdef CONFIG_CPU_FREQ_STAT
@@ -385,7 +396,7 @@ struct cpufreq_driver {
int (*online)(struct cpufreq_policy *policy);
int (*offline)(struct cpufreq_policy *policy);
- int (*exit)(struct cpufreq_policy *policy);
+ void (*exit)(struct cpufreq_policy *policy);
int (*suspend)(struct cpufreq_policy *policy);
int (*resume)(struct cpufreq_policy *policy);
@@ -566,14 +577,6 @@ static inline unsigned long cpufreq_scale(unsigned long old, u_int div,
#define CPUFREQ_POLICY_POWERSAVE (1)
#define CPUFREQ_POLICY_PERFORMANCE (2)
-/*
- * The polling frequency depends on the capability of the processor. Default
- * polling frequency is 1000 times the transition latency of the processor. The
- * ondemand governor will work on any processor with transition latency <= 10ms,
- * using appropriate sampling rate.
- */
-#define LATENCY_MULTIPLIER (1000)
-
struct cpufreq_governor {
char name[CPUFREQ_NAME_LEN];
int (*init)(struct cpufreq_policy *policy);
@@ -694,26 +697,6 @@ struct cpufreq_frequency_table {
* order */
};
-#if defined(CONFIG_CPU_FREQ) && defined(CONFIG_PM_OPP)
-int dev_pm_opp_init_cpufreq_table(struct device *dev,
- struct cpufreq_frequency_table **table);
-void dev_pm_opp_free_cpufreq_table(struct device *dev,
- struct cpufreq_frequency_table **table);
-#else
-static inline int dev_pm_opp_init_cpufreq_table(struct device *dev,
- struct cpufreq_frequency_table
- **table)
-{
- return -EINVAL;
-}
-
-static inline void dev_pm_opp_free_cpufreq_table(struct device *dev,
- struct cpufreq_frequency_table
- **table)
-{
-}
-#endif
-
/*
* cpufreq_for_each_entry - iterate over a cpufreq_frequency_table
* @pos: the cpufreq_frequency_table * to use as a loop cursor.
@@ -787,8 +770,8 @@ int cpufreq_frequency_table_verify(struct cpufreq_policy_data *policy,
int cpufreq_generic_frequency_table_verify(struct cpufreq_policy_data *policy);
int cpufreq_table_index_unsorted(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation);
+ unsigned int target_freq, unsigned int min,
+ unsigned int max, unsigned int relation);
int cpufreq_frequency_table_get_index(struct cpufreq_policy *policy,
unsigned int freq);
@@ -796,7 +779,7 @@ ssize_t cpufreq_show_cpus(const struct cpumask *mask, char *buf);
#ifdef CONFIG_CPU_FREQ
int cpufreq_boost_trigger_state(int state);
-int cpufreq_boost_enabled(void);
+bool cpufreq_boost_enabled(void);
int cpufreq_enable_boost_support(void);
bool policy_has_boost_freq(struct cpufreq_policy *policy);
@@ -853,12 +836,12 @@ static inline int cpufreq_table_find_index_dl(struct cpufreq_policy *policy,
return best;
}
-/* Works only on sorted freq-tables */
-static inline int cpufreq_table_find_index_l(struct cpufreq_policy *policy,
- unsigned int target_freq,
- bool efficiencies)
+static inline int find_index_l(struct cpufreq_policy *policy,
+ unsigned int target_freq,
+ unsigned int min, unsigned int max,
+ bool efficiencies)
{
- target_freq = clamp_val(target_freq, policy->min, policy->max);
+ target_freq = clamp_val(target_freq, min, max);
if (policy->freq_table_sorted == CPUFREQ_TABLE_SORTED_ASCENDING)
return cpufreq_table_find_index_al(policy, target_freq,
@@ -868,6 +851,14 @@ static inline int cpufreq_table_find_index_l(struct cpufreq_policy *policy,
efficiencies);
}
+/* Works only on sorted freq-tables */
+static inline int cpufreq_table_find_index_l(struct cpufreq_policy *policy,
+ unsigned int target_freq,
+ bool efficiencies)
+{
+ return find_index_l(policy, target_freq, policy->min, policy->max, efficiencies);
+}
+
/* Find highest freq at or below target in a table in ascending order */
static inline int cpufreq_table_find_index_ah(struct cpufreq_policy *policy,
unsigned int target_freq,
@@ -921,12 +912,12 @@ static inline int cpufreq_table_find_index_dh(struct cpufreq_policy *policy,
return best;
}
-/* Works only on sorted freq-tables */
-static inline int cpufreq_table_find_index_h(struct cpufreq_policy *policy,
- unsigned int target_freq,
- bool efficiencies)
+static inline int find_index_h(struct cpufreq_policy *policy,
+ unsigned int target_freq,
+ unsigned int min, unsigned int max,
+ bool efficiencies)
{
- target_freq = clamp_val(target_freq, policy->min, policy->max);
+ target_freq = clamp_val(target_freq, min, max);
if (policy->freq_table_sorted == CPUFREQ_TABLE_SORTED_ASCENDING)
return cpufreq_table_find_index_ah(policy, target_freq,
@@ -936,6 +927,14 @@ static inline int cpufreq_table_find_index_h(struct cpufreq_policy *policy,
efficiencies);
}
+/* Works only on sorted freq-tables */
+static inline int cpufreq_table_find_index_h(struct cpufreq_policy *policy,
+ unsigned int target_freq,
+ bool efficiencies)
+{
+ return find_index_h(policy, target_freq, policy->min, policy->max, efficiencies);
+}
+
/* Find closest freq to target in a table in ascending order */
static inline int cpufreq_table_find_index_ac(struct cpufreq_policy *policy,
unsigned int target_freq,
@@ -1006,12 +1005,12 @@ static inline int cpufreq_table_find_index_dc(struct cpufreq_policy *policy,
return best;
}
-/* Works only on sorted freq-tables */
-static inline int cpufreq_table_find_index_c(struct cpufreq_policy *policy,
- unsigned int target_freq,
- bool efficiencies)
+static inline int find_index_c(struct cpufreq_policy *policy,
+ unsigned int target_freq,
+ unsigned int min, unsigned int max,
+ bool efficiencies)
{
- target_freq = clamp_val(target_freq, policy->min, policy->max);
+ target_freq = clamp_val(target_freq, min, max);
if (policy->freq_table_sorted == CPUFREQ_TABLE_SORTED_ASCENDING)
return cpufreq_table_find_index_ac(policy, target_freq,
@@ -1021,7 +1020,17 @@ static inline int cpufreq_table_find_index_c(struct cpufreq_policy *policy,
efficiencies);
}
-static inline bool cpufreq_is_in_limits(struct cpufreq_policy *policy, int idx)
+/* Works only on sorted freq-tables */
+static inline int cpufreq_table_find_index_c(struct cpufreq_policy *policy,
+ unsigned int target_freq,
+ bool efficiencies)
+{
+ return find_index_c(policy, target_freq, policy->min, policy->max, efficiencies);
+}
+
+static inline bool cpufreq_is_in_limits(struct cpufreq_policy *policy,
+ unsigned int min, unsigned int max,
+ int idx)
{
unsigned int freq;
@@ -1030,11 +1039,13 @@ static inline bool cpufreq_is_in_limits(struct cpufreq_policy *policy, int idx)
freq = policy->freq_table[idx].frequency;
- return freq == clamp_val(freq, policy->min, policy->max);
+ return freq == clamp_val(freq, min, max);
}
static inline int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
unsigned int target_freq,
+ unsigned int min,
+ unsigned int max,
unsigned int relation)
{
bool efficiencies = policy->efficiencies_available &&
@@ -1045,29 +1056,26 @@ static inline int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
relation &= ~CPUFREQ_RELATION_E;
if (unlikely(policy->freq_table_sorted == CPUFREQ_TABLE_UNSORTED))
- return cpufreq_table_index_unsorted(policy, target_freq,
- relation);
+ return cpufreq_table_index_unsorted(policy, target_freq, min,
+ max, relation);
retry:
switch (relation) {
case CPUFREQ_RELATION_L:
- idx = cpufreq_table_find_index_l(policy, target_freq,
- efficiencies);
+ idx = find_index_l(policy, target_freq, min, max, efficiencies);
break;
case CPUFREQ_RELATION_H:
- idx = cpufreq_table_find_index_h(policy, target_freq,
- efficiencies);
+ idx = find_index_h(policy, target_freq, min, max, efficiencies);
break;
case CPUFREQ_RELATION_C:
- idx = cpufreq_table_find_index_c(policy, target_freq,
- efficiencies);
+ idx = find_index_c(policy, target_freq, min, max, efficiencies);
break;
default:
WARN_ON_ONCE(1);
return 0;
}
- /* Limit frequency index to honor policy->min/max */
- if (!cpufreq_is_in_limits(policy, idx) && efficiencies) {
+ /* Limit frequency index to honor min and max */
+ if (!cpufreq_is_in_limits(policy, min, max, idx) && efficiencies) {
efficiencies = false;
goto retry;
}
@@ -1158,8 +1166,7 @@ static inline int of_perf_domain_get_sharing_cpumask(int pcpu, const char *list_
if (ret < 0)
continue;
- if (pargs->np == args.np && pargs->args_count == args.args_count &&
- !memcmp(pargs->args, args.args, sizeof(args.args[0]) * args.args_count))
+ if (of_phandle_args_equal(pargs, &args))
cpumask_set_cpu(cpu, cpumask);
of_node_put(args.np);
@@ -1172,9 +1179,9 @@ static inline int cpufreq_boost_trigger_state(int state)
{
return 0;
}
-static inline int cpufreq_boost_enabled(void)
+static inline bool cpufreq_boost_enabled(void)
{
- return 0;
+ return false;
}
static inline int cpufreq_enable_boost_support(void)
@@ -1202,14 +1209,6 @@ static inline int of_perf_domain_get_sharing_cpumask(int pcpu, const char *list_
}
#endif
-#if defined(CONFIG_ENERGY_MODEL) && defined(CONFIG_CPU_FREQ_GOV_SCHEDUTIL)
-void sched_cpufreq_governor_change(struct cpufreq_policy *policy,
- struct cpufreq_governor *old_gov);
-#else
-static inline void sched_cpufreq_governor_change(struct cpufreq_policy *policy,
- struct cpufreq_governor *old_gov) { }
-#endif
-
extern unsigned int arch_freq_get_on_cpu(int cpu);
#ifndef arch_set_freq_scale
@@ -1220,6 +1219,7 @@ void arch_set_freq_scale(const struct cpumask *cpus,
{
}
#endif
+
/* the following are really really optional */
extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs;
extern struct freq_attr cpufreq_freq_attr_scaling_boost_freqs;
generated by cgit v1.2.3 (git 2.39.0) at 2025-07-13 17:03:32 +0300