linux-kernel - Re: [PATCH v6 2/2] EDAC/zynqmp: Add EDAC support for Xilinx ZynqMP OCM

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Message-ID: <Y2qiRoiYepte/R4W@zn.tnic>
Date:   Tue, 8 Nov 2022 19:39:02 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Sai Krishna Potthuri <sai.krishna.potthuri@....com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Michal Simek <michal.simek@...inx.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Tony Luck <tony.luck@...el.com>,
        James Morse <james.morse@....com>,
        Robert Richter <rric@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-edac@...r.kernel.org, saikrishna12468@...il.com, git@....com,
        Shubhrajyoti Datta <shubhrajyoti.datta@....com>,
        kernel test robot <lkp@...el.com>
Subject: Re: [PATCH v6 2/2] EDAC/zynqmp: Add EDAC support for Xilinx ZynqMP
 OCM

On Wed, Nov 02, 2022 at 12:36:55PM +0530, Sai Krishna Potthuri wrote:
> Add EDAC support for Xilinx ZynqMP OCM Controller, this driver

So a while ago you said that this driver is for the on chip memory
controller. Is it possible for such a system to have another memory
controller too for which another EDAC driver gets loaded?

Because the EDAC core - at least on x86 - assumes that a single driver
runs on the system and I don't think I've ever had the case where we
need multiple drivers. And in such case to audit it for concurrency
issues.

So I guess the question is, can a system have zynqmp_ocm_edac and say,
synopsys_edac or some other EDAC driver loaded at the same time?

Thx.

-- 
Regards/Gruss,
    Boris.

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