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-rw-r--r--include/linux/cpufreq.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index dc196bbcf22..4d89e0e6f9c 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -11,6 +11,7 @@
#ifndef _LINUX_CPUFREQ_H
#define _LINUX_CPUFREQ_H
+#include <linux/clk.h>
#include <linux/cpumask.h>
#include <linux/completion.h>
#include <linux/kobject.h>
@@ -66,6 +67,7 @@ struct cpufreq_policy {
unsigned int cpu; /* cpu nr of CPU managing this policy */
unsigned int last_cpu; /* cpu nr of previous CPU that managed
* this policy */
+ struct clk *clk;
struct cpufreq_cpuinfo cpuinfo;/* see above */
unsigned int min; /* in kHz */
@@ -225,6 +227,11 @@ struct cpufreq_driver {
int (*suspend) (struct cpufreq_policy *policy);
int (*resume) (struct cpufreq_policy *policy);
struct freq_attr **attr;
+
+ /* platform specific boost support code */
+ bool boost_supported;
+ bool boost_enabled;
+ int (*set_boost) (int state);
};
/* flags */
@@ -252,6 +259,15 @@ struct cpufreq_driver {
*/
#define CPUFREQ_ASYNC_NOTIFICATION (1 << 4)
+/*
+ * Set by drivers which want cpufreq core to check if CPU is running at a
+ * frequency present in freq-table exposed by the driver. For these drivers if
+ * CPU is found running at an out of table freq, we will try to set it to a freq
+ * from the table. And if that fails, we will stop further boot process by
+ * issuing a BUG_ON().
+ */
+#define CPUFREQ_NEED_INITIAL_FREQ_CHECK (1 << 5)
+
int cpufreq_register_driver(struct cpufreq_driver *driver_data);
int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);
@@ -299,6 +315,8 @@ cpufreq_verify_within_cpu_limits(struct cpufreq_policy *policy)
#define CPUFREQ_NOTIFY (2)
#define CPUFREQ_START (3)
#define CPUFREQ_UPDATE_POLICY_CPU (4)
+#define CPUFREQ_CREATE_POLICY (5)
+#define CPUFREQ_REMOVE_POLICY (6)
#ifdef CONFIG_CPU_FREQ
int cpufreq_register_notifier(struct notifier_block *nb, unsigned int list);
@@ -306,6 +324,8 @@ int cpufreq_unregister_notifier(struct notifier_block *nb, unsigned int list);
void cpufreq_notify_transition(struct cpufreq_policy *policy,
struct cpufreq_freqs *freqs, unsigned int state);
+void cpufreq_notify_post_transition(struct cpufreq_policy *policy,
+ struct cpufreq_freqs *freqs, int transition_failed);
#else /* CONFIG_CPU_FREQ */
static inline int cpufreq_register_notifier(struct notifier_block *nb,
@@ -420,6 +440,7 @@ extern struct cpufreq_governor cpufreq_gov_conservative;
#define CPUFREQ_ENTRY_INVALID ~0
#define CPUFREQ_TABLE_END ~1
+#define CPUFREQ_BOOST_FREQ ~2
struct cpufreq_frequency_table {
unsigned int driver_data; /* driver specific data, not used by core */
@@ -439,10 +460,30 @@ int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
unsigned int target_freq,
unsigned int relation,
unsigned int *index);
+int cpufreq_frequency_table_get_index(struct cpufreq_policy *policy,
+ unsigned int freq);
void cpufreq_frequency_table_update_policy_cpu(struct cpufreq_policy *policy);
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_supported(void);
+int cpufreq_boost_enabled(void);
+#else
+static inline int cpufreq_boost_trigger_state(int state)
+{
+ return 0;
+}
+static inline int cpufreq_boost_supported(void)
+{
+ return 0;
+}
+static inline int cpufreq_boost_enabled(void)
+{
+ return 0;
+}
+#endif
/* the following funtion is for cpufreq core use only */
struct cpufreq_frequency_table *cpufreq_frequency_get_table(unsigned int cpu);
@@ -455,6 +496,7 @@ void cpufreq_frequency_table_put_attr(unsigned int cpu);
int cpufreq_table_validate_and_show(struct cpufreq_policy *policy,
struct cpufreq_frequency_table *table);
+unsigned int cpufreq_generic_get(unsigned int cpu);
int cpufreq_generic_init(struct cpufreq_policy *policy,
struct cpufreq_frequency_table *table,
unsigned int transition_latency);