On Thu, Nov 09, 2023 at 11:14:38AM +0100, Vincent Guittot wrote:
> Use the new capacity_ref_freq to set the ratio that is used by AMU for
> computing the arch_scale_freq_capacity().
> This helps to keep everything aligned using the same reference for
> computing CPUs capacity.
>
> The default value of the ratio (stored in per_cpu(arch_max_freq_scale))
> ensures that arch_scale_freq_capacity() returns max capacity until it is
> set to its correct value with the cpu capacity and capacity_ref_freq.
>
> Signed-off-by: Vincent Guittot <[email protected]>
> Acked-by: Sudeep Holla <[email protected]>
> ---
> arch/arm64/kernel/topology.c | 26 +++++++++++++-------------
> drivers/base/arch_topology.c | 12 +++++++++++-
> include/linux/arch_topology.h | 1 +
> 3 files changed, 25 insertions(+), 14 deletions(-)
Acked-by: Will Deacon <[email protected]>
Will