linux-kernel - Re: [PATCH v3 1/1] arch_topology: move parse_acpi

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Message-ID: <aM1By_d3K_hW-JTZ@willie-the-truck>
Date: Fri, 19 Sep 2025 12:43:07 +0100
From: Will Deacon <will@...nel.org>
To: Yunhui Cui <cuiyunhui@...edance.com>
Cc: catalin.marinas@....com, sudeep.holla@....com,
	gregkh@...uxfoundation.org, rafael@...nel.org, dakr@...nel.org,
	beata.michalska@....com, ptsm@...ux.microsoft.com,
	sumitg@...dia.com, yangyicong@...ilicon.com,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/1] arch_topology: move parse_acpi_topology() to
 common code

On Fri, Sep 19, 2025 at 04:59:18PM +0800, Yunhui Cui wrote:
> Currently, RISC-V lacks arch-specific registers for CPU topology
> properties and must get them from ACPI. Thus, parse_acpi_topology()
> is moved from arm64/ to drivers/ for RISC-V reuse.
> 
> Signed-off-by: Yunhui Cui <cuiyunhui@...edance.com>
> ---
>  arch/arm64/kernel/topology.c  | 87 +---------------------------------
>  drivers/base/arch_topology.c  | 89 ++++++++++++++++++++++++++++++++++-
>  include/linux/arch_topology.h |  1 +
>  3 files changed, 90 insertions(+), 87 deletions(-)

I'm fine with shedding code from arch/arm64/ but this needs an Ack
from Sudeep.

Will