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Message-ID: <fc0bbd15-209e-412d-a132-6aac2e871c71@quicinc.com>
Date:   Tue, 24 Oct 2023 07:25:03 -0700
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Subject: Re: [PATCH v1 0/5] soc/arm64: qcom: add initial version of memory
 dump
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To:     Zhenhua Huang <quic_zhenhuah@quicinc.com>,
        Konrad Dybcio <konrad.dybcio@linaro.org>, <agross@kernel.org>,
        <andersson@kernel.org>, <robh+dt@kernel.org>,
        <krzysztof.kozlowski+dt@linaro.org>, <conor+dt@kernel.org>
CC:     <linux-arm-msm@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, <kernel@quicinc.com>,
        <quic_tingweiz@quicinc.com>
References: <1698052857-6918-1-git-send-email-quic_zhenhuah@quicinc.com>
 <757382c1-142b-454c-b2b5-7ec97bd7328d@linaro.org>
 <ac42f27e-007d-1157-ae46-403420d9fdcb@quicinc.com>
From:   Jeff Johnson <quic_jjohnson@quicinc.com>
In-Reply-To: <ac42f27e-007d-1157-ae46-403420d9fdcb@quicinc.com>
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On 10/24/2023 3:10 AM, Zhenhua Huang wrote:
> 
> 
> On 2023/10/23 21:50, Konrad Dybcio wrote:
>> On 23.10.2023 11:20, Zhenhua Huang wrote:
>>> Qualcomm memory dump driver is to cooperate with firmware, providing the
>> Firmware == The hypervisor? The TZ? Some uncore chip?
> 
> It's part of bootloader which also needs to cooperate with TZ. After 
> system crash and warm reset, system enters debug mode which needs the 
> dump table.

When you re-spin can you be clear about for which firmware this is 
applicable? On a Qualcomm SoC there are multiple integrated peripherals 
with their own firmware, so it is important to clarify which ones can 
utilize this framework.

/jeff