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author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-07-18 09:49:30 +0200 |
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committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-07-18 09:49:30 +0200 |
commit | 918e162e6a71e924a343b41f71789ad14e1e3229 (patch) | |
tree | fe26a3ee0f78ac652fed532c4986af7469c71859 /include/linux/pm_qos.h | |
parent | 8da04e05cdfc715d414a1c5f8318c03030eb68fb (diff) | |
parent | c4dcc8a162784c1f827c7f6d8409598f19708fe6 (diff) | |
download | linux-stable-918e162e6a71e924a343b41f71789ad14e1e3229.tar.gz linux-stable-918e162e6a71e924a343b41f71789ad14e1e3229.tar.bz2 linux-stable-918e162e6a71e924a343b41f71789ad14e1e3229.zip |
Merge branch 'pm-cpufreq'
* pm-cpufreq:
cpufreq: Make cpufreq_generic_init() return void
cpufreq: imx-cpufreq-dt: Add i.MX8MN support
cpufreq: Add QoS requests for userspace constraints
cpufreq: intel_pstate: Reuse refresh_frequency_limits()
cpufreq: Register notifiers with the PM QoS framework
PM / QoS: Add support for MIN/MAX frequency constraints
PM / QOS: Pass request type to dev_pm_qos_read_value()
PM / QOS: Rename __dev_pm_qos_read_value() and dev_pm_qos_raw_read_value()
PM / QOS: Pass request type to dev_pm_qos_{add|remove}_notifier()
Diffstat (limited to 'include/linux/pm_qos.h')
-rw-r--r-- | include/linux/pm_qos.h | 48 |
1 files changed, 37 insertions, 11 deletions
diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h index 6ea1ae373d77..2aebbc5b9950 100644 --- a/include/linux/pm_qos.h +++ b/include/linux/pm_qos.h @@ -40,6 +40,8 @@ enum pm_qos_flags_status { #define PM_QOS_RESUME_LATENCY_NO_CONSTRAINT PM_QOS_LATENCY_ANY #define PM_QOS_RESUME_LATENCY_NO_CONSTRAINT_NS PM_QOS_LATENCY_ANY_NS #define PM_QOS_LATENCY_TOLERANCE_DEFAULT_VALUE 0 +#define PM_QOS_MIN_FREQUENCY_DEFAULT_VALUE 0 +#define PM_QOS_MAX_FREQUENCY_DEFAULT_VALUE (-1) #define PM_QOS_LATENCY_TOLERANCE_NO_CONSTRAINT (-1) #define PM_QOS_FLAG_NO_POWER_OFF (1 << 0) @@ -58,6 +60,8 @@ struct pm_qos_flags_request { enum dev_pm_qos_req_type { DEV_PM_QOS_RESUME_LATENCY = 1, DEV_PM_QOS_LATENCY_TOLERANCE, + DEV_PM_QOS_MIN_FREQUENCY, + DEV_PM_QOS_MAX_FREQUENCY, DEV_PM_QOS_FLAGS, }; @@ -99,10 +103,14 @@ struct pm_qos_flags { struct dev_pm_qos { struct pm_qos_constraints resume_latency; struct pm_qos_constraints latency_tolerance; + struct pm_qos_constraints min_frequency; + struct pm_qos_constraints max_frequency; struct pm_qos_flags flags; struct dev_pm_qos_request *resume_latency_req; struct dev_pm_qos_request *latency_tolerance_req; struct dev_pm_qos_request *flags_req; + struct dev_pm_qos_request *min_frequency_req; + struct dev_pm_qos_request *max_frequency_req; }; /* Action requested to pm_qos_update_target */ @@ -139,16 +147,18 @@ s32 pm_qos_read_value(struct pm_qos_constraints *c); #ifdef CONFIG_PM enum pm_qos_flags_status __dev_pm_qos_flags(struct device *dev, s32 mask); enum pm_qos_flags_status dev_pm_qos_flags(struct device *dev, s32 mask); -s32 __dev_pm_qos_read_value(struct device *dev); -s32 dev_pm_qos_read_value(struct device *dev); +s32 __dev_pm_qos_resume_latency(struct device *dev); +s32 dev_pm_qos_read_value(struct device *dev, enum dev_pm_qos_req_type type); int dev_pm_qos_add_request(struct device *dev, struct dev_pm_qos_request *req, enum dev_pm_qos_req_type type, s32 value); int dev_pm_qos_update_request(struct dev_pm_qos_request *req, s32 new_value); int dev_pm_qos_remove_request(struct dev_pm_qos_request *req); int dev_pm_qos_add_notifier(struct device *dev, - struct notifier_block *notifier); + struct notifier_block *notifier, + enum dev_pm_qos_req_type type); int dev_pm_qos_remove_notifier(struct device *dev, - struct notifier_block *notifier); + struct notifier_block *notifier, + enum dev_pm_qos_req_type type); void dev_pm_qos_constraints_init(struct device *dev); void dev_pm_qos_constraints_destroy(struct device *dev); int dev_pm_qos_add_ancestor_request(struct device *dev, @@ -174,7 +184,7 @@ static inline s32 dev_pm_qos_requested_flags(struct device *dev) return dev->power.qos->flags_req->data.flr.flags; } -static inline s32 dev_pm_qos_raw_read_value(struct device *dev) +static inline s32 dev_pm_qos_raw_resume_latency(struct device *dev) { return IS_ERR_OR_NULL(dev->power.qos) ? PM_QOS_RESUME_LATENCY_NO_CONSTRAINT : @@ -187,10 +197,24 @@ static inline enum pm_qos_flags_status __dev_pm_qos_flags(struct device *dev, static inline enum pm_qos_flags_status dev_pm_qos_flags(struct device *dev, s32 mask) { return PM_QOS_FLAGS_UNDEFINED; } -static inline s32 __dev_pm_qos_read_value(struct device *dev) - { return PM_QOS_RESUME_LATENCY_NO_CONSTRAINT; } -static inline s32 dev_pm_qos_read_value(struct device *dev) +static inline s32 __dev_pm_qos_resume_latency(struct device *dev) { return PM_QOS_RESUME_LATENCY_NO_CONSTRAINT; } +static inline s32 dev_pm_qos_read_value(struct device *dev, + enum dev_pm_qos_req_type type) +{ + switch (type) { + case DEV_PM_QOS_RESUME_LATENCY: + return PM_QOS_RESUME_LATENCY_NO_CONSTRAINT; + case DEV_PM_QOS_MIN_FREQUENCY: + return PM_QOS_MIN_FREQUENCY_DEFAULT_VALUE; + case DEV_PM_QOS_MAX_FREQUENCY: + return PM_QOS_MAX_FREQUENCY_DEFAULT_VALUE; + default: + WARN_ON(1); + return 0; + } +} + static inline int dev_pm_qos_add_request(struct device *dev, struct dev_pm_qos_request *req, enum dev_pm_qos_req_type type, @@ -202,10 +226,12 @@ static inline int dev_pm_qos_update_request(struct dev_pm_qos_request *req, static inline int dev_pm_qos_remove_request(struct dev_pm_qos_request *req) { return 0; } static inline int dev_pm_qos_add_notifier(struct device *dev, - struct notifier_block *notifier) + struct notifier_block *notifier, + enum dev_pm_qos_req_type type) { return 0; } static inline int dev_pm_qos_remove_notifier(struct device *dev, - struct notifier_block *notifier) + struct notifier_block *notifier, + enum dev_pm_qos_req_type type) { return 0; } static inline void dev_pm_qos_constraints_init(struct device *dev) { @@ -241,7 +267,7 @@ static inline s32 dev_pm_qos_requested_resume_latency(struct device *dev) return PM_QOS_RESUME_LATENCY_NO_CONSTRAINT; } static inline s32 dev_pm_qos_requested_flags(struct device *dev) { return 0; } -static inline s32 dev_pm_qos_raw_read_value(struct device *dev) +static inline s32 dev_pm_qos_raw_resume_latency(struct device *dev) { return PM_QOS_RESUME_LATENCY_NO_CONSTRAINT; } |