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Mon, 23 Oct 2023 02:25:39 -0700 (PDT) Received: from [192.168.1.20] ([178.197.218.126]) by smtp.gmail.com with ESMTPSA id p12-20020a05600c418c00b0040773c69fc0sm13481557wmh.11.2023.10.23.02.25.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 23 Oct 2023 02:25:38 -0700 (PDT) Message-ID: <70072874-6fa8-46ba-bf26-c35aa6ec7bb6@linaro.org> Date: Mon, 23 Oct 2023 11:25:37 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1 0/5] soc/arm64: qcom: add initial version of memory dump Content-Language: en-US To: Zhenhua Huang , agross@kernel.org, andersson@kernel.org, konrad.dybcio@linaro.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> From: Krzysztof Kozlowski Autocrypt: addr=krzysztof.kozlowski@linaro.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 23/10/2023 11:20, Zhenhua Huang wrote: > Qualcomm memory dump driver is to cooperate with firmware, providing the > hints(id and size) of storing useful debugging information into pre-allocated > memory. Firmware then does the real data capture. The debugging information > includes cache contents, internal memory, registers. > > The driver dynamically reserves memory and provides the hints(dump id and size) > following specified protocols with firmware. After crash and warm reboot, > firmware scans these information and stores contents into reserved memory > accordingly. Firmware then enters into full dump mode which dumps whole DDR > to host through USB. How does it relate to minidump? > > User then get full dump using PCAT and can parse out these informations. > > Dump id and size are provided by bootconfig. The expected format of a > bootconfig file is as follows:- > memory_dump_config { > { > id = > size = > } > } > > for example: > memory_dump_config { > c0_context_dump { > id = 0 > size = 0x800 > } > } > > Test based on 6.6-rc1. I don't think so (or you miss yamllint). $ git checkout v6.6-rc1 $ b4 am... $ dt_binding_chec qcom,mem-dump.yaml:5:10: [error] string value is redundantly quoted with any quotes (quoted-strings) Best regards, Krzysztof