linux-kernel - Re: [PATCH v2] soc: qcom: cmd-db: Map shared memory as WC, not WB

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Message-ID: <83f721bf-b2a6-4c05-b142-3473ffc86fde@linaro.org>
Date: Thu, 18 Jul 2024 10:49:58 +0200
From: Caleb Connolly <caleb.connolly@...aro.org>
To: Pavan Kondeti <quic_pkondeti@...cinc.com>
Cc: Maulik Shah <quic_mkshah@...cinc.com>,
 Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konrad.dybcio@...aro.org>, stephan@...hold.net,
 swboyd@...omium.org, dianders@...omium.org, robdclark@...il.com,
 nikita@...n.ru, quic_eberman@...cinc.com, quic_lsrao@...cinc.com,
 linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
 Volodymyr Babchuk <Volodymyr_Babchuk@...m.com>, stable@...r.kernel.org
Subject: Re: [PATCH v2] soc: qcom: cmd-db: Map shared memory as WC, not WB



On 18/07/2024 09:55, Pavan Kondeti wrote:
> On Thu, Jul 18, 2024 at 09:42:27AM +0200, Caleb Connolly wrote:
>> Hi Pavan,
>>
>>>
>>> Thanks Maulik for sharing the patch. It works as expected. Feel free to
>>> use
>>
>> Can I ask how you're testing this?
>>
>> Kind regards,
>>>
>>> Tested-by: Pavankumar Kondeti <quic_pkondeti@...cinc.com>
>>>
>>
> 
> The QCM6490 RB3 board boots from upstream kernel. As part of releases
> here [1] we plan to support booting Linux in EL2. Currently, I have an
> internal board/build with firmware allowing this already. I have boot tested
> Maulik's patch (and as well v1 patch). The targets gets reset early in
> the boot up w/o this patch and I could boot w/ this patch.

Ahh awesome! Thanks for the info :)
> 
> Thanks,
> Pavan
> 
> [1] https://github.com/quic-yocto/qcom-manifest

-- 
// Caleb (they/them)