Re: [PATCH v1 10/10] cpufreq: Pass policy pointer to ->update_limits()

Viresh Kumar
2025-04-01T08:51:51Z

On 28-03-25, 21:48, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>
> Since cpufreq_update_limits() obtains a cpufreq policy pointer for the
> given CPU and reference counts the corresponding policy object, it may
> as well pass the policy pointer to the cpufreq driver's ->update_limits()
> callback which allows that callback to avoid invoking cpufreq_cpu_get()
> for the same CPU.
>
> Accordingly, redefine ->update_limits() to take a policy pointer instead
> of a CPU number and update both drivers implementing it, intel_pstate
> and amd-pstate, as needed.
>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> ---
> drivers/cpufreq/amd-pstate.c | 7 ++-----
> drivers/cpufreq/cpufreq.c | 2 +-
> drivers/cpufreq/intel_pstate.c | 29 ++++++++++++++++++-----------
> include/linux/cpufreq.h | 2 +-
> 4 files changed, 22 insertions(+), 18 deletions(-)

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

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viresh