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SubjectRe: [PATCH v7 00/23] Introduce runtime modifiable Energy Model
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Hi Rafael,

On 1/17/24 09:56, Lukasz Luba wrote:
> Hi all,
>
> This patch set adds a new feature which allows to modify Energy Model (EM)
> power values at runtime. It will allow to better reflect power model of
> a recent SoCs and silicon. Different characteristics of the power usage
> can be leveraged and thus better decisions made during task placement in EAS.
>

[snip]

>
>
> Lukasz Luba (23):
> PM: EM: Add missing newline for the message log
> PM: EM: Extend em_cpufreq_update_efficiencies() argument list
> PM: EM: Find first CPU active while updating OPP efficiency
> PM: EM: Refactor em_pd_get_efficient_state() to be more flexible
> PM: EM: Introduce em_compute_costs()
> PM: EM: Check if the get_cost() callback is present in
> em_compute_costs()
> PM: EM: Split the allocation and initialization of the EM table
> PM: EM: Introduce runtime modifiable table
> PM: EM: Use runtime modified EM for CPUs energy estimation in EAS
> PM: EM: Add functions for memory allocations for new EM tables
> PM: EM: Introduce em_dev_update_perf_domain() for EM updates
> PM: EM: Add em_perf_state_from_pd() to get performance states table
> PM: EM: Add performance field to struct em_perf_state and optimize
> PM: EM: Support late CPUs booting and capacity adjustment
> PM: EM: Optimize em_cpu_energy() and remove division
> powercap/dtpm_cpu: Use new Energy Model interface to get table
> powercap/dtpm_devfreq: Use new Energy Model interface to get table
> drivers/thermal/cpufreq_cooling: Use new Energy Model interface
> drivers/thermal/devfreq_cooling: Use new Energy Model interface
> PM: EM: Change debugfs configuration to use runtime EM table data
> PM: EM: Remove old table
> PM: EM: Add em_dev_compute_costs()
> Documentation: EM: Update with runtime modification design
>
> Documentation/power/energy-model.rst | 183 ++++++++++-
> drivers/powercap/dtpm_cpu.c | 39 ++-
> drivers/powercap/dtpm_devfreq.c | 34 +-
> drivers/thermal/cpufreq_cooling.c | 45 ++-
> drivers/thermal/devfreq_cooling.c | 49 ++-
> include/linux/energy_model.h | 165 ++++++----
> kernel/power/energy_model.c | 472 +++++++++++++++++++++++----
> 7 files changed, 819 insertions(+), 168 deletions(-)
>

The patch set went through decent review. If you don't have any issues,
I will collect the tags and send the v8 which will be re-based on some
recent linux next (or please tell me your preferred branch).

Regards,
Lukasz

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