| Message ID | cover.1550748118.git.viresh.kumar@linaro.org (mailing list archive) |
|---|---|
| Headers | show |
| Series | cpufreq: Use QoS layer to manage freq-constraints | expand |
On Thursday, February 21, 2019 12:29:26 PM CET Viresh Kumar wrote: > Hello, > > This patchset attempts to manage CPU frequency constraints using the PM > QoS framework. It only does the basic stuff right now and moves the > userspace constraints to use the QoS infrastructure. > > Todo: > - Migrate all users to the QoS framework and get rid of cpufreq specific > notifiers. > - Make PM QoS learn about the relation of CPUs in a policy, so a single > list of constraints is managed for all of them instead of per-cpu > constraints. > > V1->V2: > - The previous version introduced a completely new framework, this one > moves to PM QoS instead. > - Lots of changes because of this. Well, thanks for working on this, but I'm rather unlikely to look at it in detail before 5.1-rc1 is released. Cheers, Rafael
On 21-02-19, 12:30, Rafael J. Wysocki wrote: > On Thursday, February 21, 2019 12:29:26 PM CET Viresh Kumar wrote: > > Hello, > > > > This patchset attempts to manage CPU frequency constraints using the PM > > QoS framework. It only does the basic stuff right now and moves the > > userspace constraints to use the QoS infrastructure. > > > > Todo: > > - Migrate all users to the QoS framework and get rid of cpufreq specific > > notifiers. > > - Make PM QoS learn about the relation of CPUs in a policy, so a single > > list of constraints is managed for all of them instead of per-cpu > > constraints. > > > > V1->V2: > > - The previous version introduced a completely new framework, this one > > moves to PM QoS instead. > > - Lots of changes because of this. > > Well, thanks for working on this, but I'm rather unlikely to look at it in > detail before 5.1-rc1 is released. Ping!
On 21-02-19, 12:30, Rafael J. Wysocki wrote: > On Thursday, February 21, 2019 12:29:26 PM CET Viresh Kumar wrote: > > Hello, > > > > This patchset attempts to manage CPU frequency constraints using the PM > > QoS framework. It only does the basic stuff right now and moves the > > userspace constraints to use the QoS infrastructure. > > > > Todo: > > - Migrate all users to the QoS framework and get rid of cpufreq specific > > notifiers. > > - Make PM QoS learn about the relation of CPUs in a policy, so a single > > list of constraints is managed for all of them instead of per-cpu > > constraints. > > > > V1->V2: > > - The previous version introduced a completely new framework, this one > > moves to PM QoS instead. > > - Lots of changes because of this. > > Well, thanks for working on this, but I'm rather unlikely to look at it in > detail before 5.1-rc1 is released. Hi Rafael, This series was posted almost 3 months back. Any comments on this would be very helpful.
Hello, This patchset attempts to manage CPU frequency constraints using the PM QoS framework. It only does the basic stuff right now and moves the userspace constraints to use the QoS infrastructure. Todo: - Migrate all users to the QoS framework and get rid of cpufreq specific notifiers. - Make PM QoS learn about the relation of CPUs in a policy, so a single list of constraints is managed for all of them instead of per-cpu constraints. V1->V2: - The previous version introduced a completely new framework, this one moves to PM QoS instead. - Lots of changes because of this. -- viresh Viresh Kumar (5): PM / QOS: Pass request type to dev_pm_qos_{add|remove}_notifier() PM / QOS: Pass request type to dev_pm_qos_read_value() PM / QoS: Add support for MIN/MAX frequency constraints cpufreq: Register notifiers with the PM QoS framework cpufreq: Add QoS requests for userspace constraints Documentation/power/pm_qos_interface.txt | 12 +- drivers/base/power/domain.c | 8 +- drivers/base/power/domain_governor.c | 4 +- drivers/base/power/qos.c | 115 +++++++++++-- drivers/base/power/runtime.c | 2 +- drivers/cpufreq/cpufreq.c | 202 ++++++++++++++++------- drivers/cpuidle/governor.c | 2 +- include/linux/cpufreq.h | 12 +- include/linux/pm_qos.h | 71 ++++++-- 9 files changed, 323 insertions(+), 105 deletions(-)