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-rw-r--r--include/linux/cpufreq.h50
1 files changed, 50 insertions, 0 deletions
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 5ae5100c1f24..3f458896d45c 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -110,6 +110,7 @@ struct cpufreq_policy {
bool transition_ongoing; /* Tracks transition status */
spinlock_t transition_lock;
wait_queue_head_t transition_wait;
+ struct task_struct *transition_task; /* Task which is doing the transition */
};
/* Only for ACPI */
@@ -468,6 +469,55 @@ 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
+
+static inline bool cpufreq_next_valid(struct cpufreq_frequency_table **pos)
+{
+ while ((*pos)->frequency != CPUFREQ_TABLE_END)
+ if ((*pos)->frequency != CPUFREQ_ENTRY_INVALID)
+ return true;
+ else
+ (*pos)++;
+ return false;
+}
+
+/*
+ * cpufreq_for_each_entry - iterate over a cpufreq_frequency_table
+ * @pos: the cpufreq_frequency_table * to use as a loop cursor.
+ * @table: the cpufreq_frequency_table * to iterate over.
+ */
+
+#define cpufreq_for_each_entry(pos, table) \
+ for (pos = table; pos->frequency != CPUFREQ_TABLE_END; pos++)
+
+/*
+ * cpufreq_for_each_valid_entry - iterate over a cpufreq_frequency_table
+ * excluding CPUFREQ_ENTRY_INVALID frequencies.
+ * @pos: the cpufreq_frequency_table * to use as a loop cursor.
+ * @table: the cpufreq_frequency_table * to iterate over.
+ */
+
+#define cpufreq_for_each_valid_entry(pos, table) \
+ for (pos = table; cpufreq_next_valid(&pos); pos++)
+
int cpufreq_frequency_table_cpuinfo(struct cpufreq_policy *policy,
struct cpufreq_frequency_table *table);