linux-kernel - Re: [PATCH] arm64: defconfig: Enable Qualcomm interconnects as built-in

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Message-ID: <CACr-zFAHGcQtwSz0EF0kt7_PUXxwi3GZY2BmAVedbLjh3+4LhA@mail.gmail.com>
Date: Thu, 13 Mar 2025 17:34:46 +0000
From: Christopher Obbard <christopher.obbard@...aro.org>
To: Brian Masney <bmasney@...hat.com>
Cc: Krzysztof Kozlowski <krzk@...nel.org>, Dmitry Baryshkov <lumag@...nel.org>, 
	Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>, 
	Bjorn Andersson <andersson@...nel.org>, Konrad Dybcio <konrad.dybcio@....qualcomm.com>, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH] arm64: defconfig: Enable Qualcomm interconnects as built-in

Hi Brian,

On Wed, 12 Mar 2025 at 19:40, Brian Masney <bmasney@...hat.com> wrote:
>
> Hi Christopher,
>
> On Wed, Mar 12, 2025 at 12:10:56PM +0100, Christopher Obbard wrote:
> > For reference, I am working on updating initramfs generation tools in
> > Debian/Fedora to include the required interconnect modules. Currently
> > the interconnect drivers are built as modules in these distros, but
> > are not included in the initrd. That is where my confusion initially
> > stemmed from.
>
> From a Fedora and centos-stream-9/10 perspective, we have dracut
> updated so that the interconnect modules are included in the initramfs
> by default.
>
> https://github.com/dracutdevs/dracut/blob/master/modules.d/90kernel-modules/module-setup.sh#L74
>
> Let me know if you are seeing a specific issue with the initramfs on
> Fedora and I can help you.

Awesome, turns out I am wrong and the interconnect drivers are in fact
present in the latest nightly Fedora 42 image I am testing:

$ lsinitramfs initramfs-6.14.0-0.rc3.29.fc42.aarch64.img  | grep interconnect
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/imx
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/imx/imx-interconnect.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/imx/imx8mm-interconnect.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/imx/imx8mn-interconnect.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/imx/imx8mp-interconnect.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/imx/imx8mq-interconnect.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/qcom
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/qcom/icc-osm-l3.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/qcom/icc-smd-rpm.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/qcom/qnoc-msm8916.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/qcom/qnoc-msm8953.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/qcom/qnoc-msm8996.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/qcom/qnoc-qcm2290.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/qcom/qnoc-sa8775p.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/qcom/qnoc-sc7280.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/qcom/qnoc-sc8180x.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/qcom/qnoc-sc8280xp.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/qcom/qnoc-sdm845.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/qcom/qnoc-sdx75.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/qcom/qnoc-sm6115.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/qcom/qnoc-sm8150.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/qcom/qnoc-sm8250.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/qcom/qnoc-sm8450.ko.xz
usr/lib/modules/6.14.0-0.rc3.29.fc42.aarch64/kernel/drivers/interconnect/qcom/qnoc-x1e80100.ko.xz



Thanks,

Chris