diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/cpufreq.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 2d2e62c8666a..e33760268a86 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -16,6 +16,7 @@ #include <linux/completion.h> #include <linux/kobject.h> #include <linux/notifier.h> +#include <linux/spinlock.h> #include <linux/sysfs.h> /********************************************************************* @@ -104,6 +105,11 @@ struct cpufreq_policy { * __cpufreq_governor(data, CPUFREQ_GOV_POLICY_EXIT); */ struct rw_semaphore rwsem; + + /* Synchronization for frequency transitions */ + bool transition_ongoing; /* Tracks transition status */ + spinlock_t transition_lock; + wait_queue_head_t transition_wait; }; /* Only for ACPI */ @@ -337,6 +343,10 @@ 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); +void cpufreq_freq_transition_begin(struct cpufreq_policy *policy, + struct cpufreq_freqs *freqs); +void cpufreq_freq_transition_end(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, |