lkml.org 
[lkml]   [2023]   [Nov]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v6 7/7] arm64/amu: Use capacity_ref_freq to set AMU ratio
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 <vincent.guittot@linaro.org>
> Acked-by: Sudeep Holla <sudeep.holla@arm.com>
> ---
> 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 <will@kernel.org>

Will

\
 
 \ /
  Last update: 2023-11-21 16:45    [W:0.120 / U:1.260 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site