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| author | Marcelo Tosatti <mtosatti@redhat.com> | 2019-07-03 20:51:26 -0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-07-30 17:27:37 +0200 |
| commit | 259231a045616c4101d023a8f4dcc8379af265a6 (patch) | |
| tree | 633877050928b1b22ee77920d79b5bc548f29471 /drivers/cpuidle/sysfs.c | |
| parent | fa86ee90eb1111267de67cb4272b5ce711f18cbb (diff) | |
| download | linux-259231a045616c4101d023a8f4dcc8379af265a6.tar.gz linux-259231a045616c4101d023a8f4dcc8379af265a6.tar.bz2 linux-259231a045616c4101d023a8f4dcc8379af265a6.zip | |
cpuidle: add poll_limit_ns to cpuidle_device structure
Add a poll_limit_ns variable to cpuidle_device structure.
Calculate and configure it in the new cpuidle_poll_time
function, in case its zero.
Individual governors are allowed to override this value.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpuidle/sysfs.c')
| -rw-r--r-- | drivers/cpuidle/sysfs.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c index eb20adb5de23..2bb2683b493c 100644 --- a/drivers/cpuidle/sysfs.c +++ b/drivers/cpuidle/sysfs.c @@ -334,6 +334,7 @@ struct cpuidle_state_kobj { struct cpuidle_state_usage *state_usage; struct completion kobj_unregister; struct kobject kobj; + struct cpuidle_device *device; }; #ifdef CONFIG_SUSPEND @@ -391,6 +392,7 @@ static inline void cpuidle_remove_s2idle_attr_group(struct cpuidle_state_kobj *k #define kobj_to_state_obj(k) container_of(k, struct cpuidle_state_kobj, kobj) #define kobj_to_state(k) (kobj_to_state_obj(k)->state) #define kobj_to_state_usage(k) (kobj_to_state_obj(k)->state_usage) +#define kobj_to_device(k) (kobj_to_state_obj(k)->device) #define attr_to_stateattr(a) container_of(a, struct cpuidle_state_attr, attr) static ssize_t cpuidle_state_show(struct kobject *kobj, struct attribute *attr, @@ -414,10 +416,14 @@ static ssize_t cpuidle_state_store(struct kobject *kobj, struct attribute *attr, struct cpuidle_state *state = kobj_to_state(kobj); struct cpuidle_state_usage *state_usage = kobj_to_state_usage(kobj); struct cpuidle_state_attr *cattr = attr_to_stateattr(attr); + struct cpuidle_device *dev = kobj_to_device(kobj); if (cattr->store) ret = cattr->store(state, state_usage, buf, size); + /* reset poll time cache */ + dev->poll_limit_ns = 0; + return ret; } @@ -468,6 +474,7 @@ static int cpuidle_add_state_sysfs(struct cpuidle_device *device) } kobj->state = &drv->states[i]; kobj->state_usage = &device->states_usage[i]; + kobj->device = device; init_completion(&kobj->kobj_unregister); ret = kobject_init_and_add(&kobj->kobj, &ktype_state_cpuidle, |