[PATCH v3 1/3] x86, ACPI: rename init_freq_invariance_cppc to arch_init_invariance_cppc

[Rafael J. Wysocki]

On Wed, Mar 2, 2022 at 7:10 PM Ionela Voinescu <ionela.voinescu at arm.com> wrote:
>
> init_freq_invariance_cppc() was called in acpi_cppc_processor_probe(),
> after CPU performance information and controls were populated from the
> per-cpu _CPC objects.
>
> But these _CPC objects provide information that helps with both CPU
> (u-arch) and frequency invariance. Therefore, change the function name
> to a more generic one, while adding the arch_ prefix, as this function
> is expected to be defined differently by different architectures.
>
> Signed-off-by: Ionela Voinescu <ionela.voinescu at arm.com>
> Tested-by: Valentin Schneider <valentin.schneider at arm.com>
> Cc: Thomas Gleixner <tglx at linutronix.de>
> Cc: Ingo Molnar <mingo at redhat.com>
> Cc: Giovanni Gherdovich <ggherdovich at suse.cz>
> Cc: "Rafael J. Wysocki" <rjw at rjwysocki.net>

Acked-by: Rafael J. Wysocki <rafael.j.wysocki at intel.com>

and who's expected to pick this up?

> ---
>  arch/x86/include/asm/topology.h | 2 +-
>  drivers/acpi/cppc_acpi.c        | 6 +++---
>  2 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h
> index 2f0b6be8eaab..5ec70f186775 100644
> --- a/arch/x86/include/asm/topology.h
> +++ b/arch/x86/include/asm/topology.h
> @@ -223,7 +223,7 @@ static inline void arch_set_max_freq_ratio(bool turbo_disabled)
>
>  #if defined(CONFIG_ACPI_CPPC_LIB) && defined(CONFIG_SMP)
>  void init_freq_invariance_cppc(void);
> -#define init_freq_invariance_cppc init_freq_invariance_cppc
> +#define arch_init_invariance_cppc init_freq_invariance_cppc
>  #endif
>
>  #endif /* _ASM_X86_TOPOLOGY_H */
> diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c
> index 866560cbb082..bfd142ab4e07 100644
> --- a/drivers/acpi/cppc_acpi.c
> +++ b/drivers/acpi/cppc_acpi.c
> @@ -633,8 +633,8 @@ static bool is_cppc_supported(int revision, int num_ent)
>   *  )
>   */
>
> -#ifndef init_freq_invariance_cppc
> -static inline void init_freq_invariance_cppc(void) { }
> +#ifndef arch_init_invariance_cppc
> +static inline void arch_init_invariance_cppc(void) { }
>  #endif
>
>  /**
> @@ -816,7 +816,7 @@ int acpi_cppc_processor_probe(struct acpi_processor *pr)
>                 goto out_free;
>         }
>
> -       init_freq_invariance_cppc();
> +       arch_init_invariance_cppc();
>
>         kfree(output.pointer);
>         return 0;
> --
> 2.25.1
>