| Message ID | 168294311714f269b1050bcbf5d3324eae0808f2.1547481320.git.amit.kucheria@linaro.org (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Delegated to: | Andy Gross |
| Headers | show |
| Series | cpufreq: Add flag to auto-register as cooling device | expand |
On Monday, January 14, 2019 5:34:53 PM CET Amit Kucheria wrote: > Several cpufreq drivers register themselves as thermal cooling devices. > Adding a pointer to struct cpufreq_policy removes the need for them to > store this pointer in a private data structure. > > We can then auto-register the cpufreq driver as a thermal cooling device > from cpufreq core code. > > Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org> > --- > include/linux/cpufreq.h | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h > index c86d6d8bdfed..7d0cf54125fa 100644 > --- a/include/linux/cpufreq.h > +++ b/include/linux/cpufreq.h > @@ -95,6 +95,11 @@ struct cpufreq_policy { > struct cpufreq_frequency_table *freq_table; > enum cpufreq_table_sorting freq_table_sorted; > > +#ifdef CONFIG_CPU_THERMAL > + /* Pointer to the cooling device if used for thermal mitigation */ > + struct thermal_cooling_device *cooldev; > +#endif > + Why here and not at the end of the struct? > struct list_head policy_list; > struct kobject kobj; > struct completion kobj_unregister; > Also, I would suggest combining this one with patch [02/10].
On Thu, Jan 17, 2019 at 4:27 AM Rafael J. Wysocki <rjw@rjwysocki.net> wrote: > > On Monday, January 14, 2019 5:34:53 PM CET Amit Kucheria wrote: > > Several cpufreq drivers register themselves as thermal cooling devices. > > Adding a pointer to struct cpufreq_policy removes the need for them to > > store this pointer in a private data structure. > > > > We can then auto-register the cpufreq driver as a thermal cooling device > > from cpufreq core code. > > > > Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org> > > --- > > include/linux/cpufreq.h | 5 +++++ > > 1 file changed, 5 insertions(+) > > > > diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h > > index c86d6d8bdfed..7d0cf54125fa 100644 > > --- a/include/linux/cpufreq.h > > +++ b/include/linux/cpufreq.h > > @@ -95,6 +95,11 @@ struct cpufreq_policy { > > struct cpufreq_frequency_table *freq_table; > > enum cpufreq_table_sorting freq_table_sorted; > > > > +#ifdef CONFIG_CPU_THERMAL > > + /* Pointer to the cooling device if used for thermal mitigation */ > > + struct thermal_cooling_device *cooldev; > > +#endif > > + > > Why here and not at the end of the struct? Fixed > > struct list_head policy_list; > > struct kobject kobj; > > struct completion kobj_unregister; > > > > Also, I would suggest combining this one with patch [02/10]. Will do. Thanks for the review.
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index c86d6d8bdfed..7d0cf54125fa 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -95,6 +95,11 @@ struct cpufreq_policy { struct cpufreq_frequency_table *freq_table; enum cpufreq_table_sorting freq_table_sorted; +#ifdef CONFIG_CPU_THERMAL + /* Pointer to the cooling device if used for thermal mitigation */ + struct thermal_cooling_device *cooldev; +#endif + struct list_head policy_list; struct kobject kobj; struct completion kobj_unregister;
Several cpufreq drivers register themselves as thermal cooling devices. Adding a pointer to struct cpufreq_policy removes the need for them to store this pointer in a private data structure. We can then auto-register the cpufreq driver as a thermal cooling device from cpufreq core code. Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org> --- include/linux/cpufreq.h | 5 +++++ 1 file changed, 5 insertions(+)