Re: [RFC][PATCH 5/5] PM / Domains: Add default power off governor function
From: Jean Pihet <hidden>
Date: 2011-09-01 15:17:54
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Rafael, On Wed, Aug 31, 2011 at 12:22 AM, Rafael J. Wysocki [off-list ref] wrote:
quoted hunk ↗ jump to hunk
From: Rafael J. Wysocki <redacted> Add a function deciding whether or not a given PM domain should be powered off on the basis of that domain's devices' PM QoS constraints. --- drivers/base/power/domain_governor.c | 96 +++++++++++++++++++++++++++++++++++ include/linux/pm_domain.h | 7 ++ 2 files changed, 103 insertions(+) Index: linux/include/linux/pm_domain.h =================================> --- linux.orig/include/linux/pm_domain.h+++ linux/include/linux/pm_domain.h@@ -49,6 +49,10 @@ struct generic_pm_domain {int (*start_device)(struct device *dev); int (*stop_device)(struct device *dev); bool (*active_wakeup)(struct device *dev); + ktime_t power_off_latency; + ktime_t power_on_latency; + s64 break_even_ns; + s64 min_delta_ns;
How are those values populated? Is there a mechanism that dynamically updates the values?
quoted hunk ↗ jump to hunk
}; static inline struct generic_pm_domain *pd_to_genpd(struct dev_pm_domain *pd)@@ -64,6 +68,9 @@ struct gpd_link {}; struct gpd_gov_dev_data { + ktime_t start_latency; + ktime_t suspend_latency; + ktime_t resume_latency;
Same question here.
s64 break_even_ns; };
... Regards, Jean