linux-kernel - Re: [PATCH 0/7] add support for CDX bus

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Message-ID: <a9b9ae95-2a3f-75fd-1355-07363bcb66e3@linaro.org>
Date:   Tue, 17 Jan 2023 18:47:28 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Nipun Gupta <nipun.gupta@....com>, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, gregkh@...uxfoundation.org,
        rafael@...nel.org, eric.auger@...hat.com,
        alex.williamson@...hat.com, cohuck@...hat.com,
        song.bao.hua@...ilicon.com, mchehab+huawei@...nel.org,
        maz@...nel.org, f.fainelli@...il.com, jeffrey.l.hugo@...il.com,
        saravanak@...gle.com, Michael.Srba@...nam.cz, mani@...nel.org,
        yishaih@...dia.com, jgg@...pe.ca, jgg@...dia.com,
        robin.murphy@....com, will@...nel.org, joro@...tes.org,
        masahiroy@...nel.org, ndesaulniers@...gle.com,
        linux-arm-kernel@...ts.infradead.org, linux-kbuild@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Cc:     okaya@...nel.org, harpreet.anand@....com, nikhil.agarwal@....com,
        michal.simek@....com, git@....com
Subject: Re: [PATCH 0/7] add support for CDX bus

On 17/01/2023 14:41, Nipun Gupta wrote:
> Introduces AMD CDX bus, which provides a mechanism to
> discover/rescan CDX devices. The CDX devices are 
> memory mapped on system bus for embedded CPUs.
> 
> CDX controller interacts with the firmware to query different
> CDX devices present in the Fabric and expose them to the Linux
> host on CDX bus.
> 
> This patch series:
> - Introduces the CDX bus and CDX devices.
> - Device tree binding for CDX controller
> - Support for CDX bus in arm-smmu-v3 driver
> - Add MCDI (Management CPU Driver Interface) as a protocol
>   for communication with RPU Firmware
> - Support RPMSg channel for Firmware communication
> 
> MSI patches for CDX are not added in this series as it's
> support is being revisited as per patch series:
> https://lore.kernel.org/all/20221111133158.196269823@linutronix.de/
> It will be added as separate patches.
> 
> RFC changes with stubs were submitted at: 
> https://lore.kernel.org/linux-arm-kernel/20221014044049.2557085-1-nipun.gupta@amd.com/

This is v5 then. Please mark it appropriately, otherwise it looks like
it is first submission.

Best regards,
Krzysztof