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[188.141.3.146]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4409d2d88cdsm25225555e9.25.2025.04.24.08.45.43 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 24 Apr 2025 08:45:43 -0700 (PDT) Message-ID: Date: Thu, 24 Apr 2025 16:45:42 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/3] Add x1e Dell Inpsiron 14p To: Rob Clark Cc: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Rob Clark References: <20250424-qcom-linux-arm64-for-6-16-dell-inspiron14p-v1-0-ace76b31d024@linaro.org> Content-Language: en-US From: Bryan O'Donoghue In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 24/04/2025 16:42, Rob Clark wrote: >> - Bugs >> Occasionally when resuming I get a fencing error with hyperlock and >> freedreno, TBH it looks like something in the GPU or SMMU according to >> Rob Clark:https://pastebin.com/AWjCyaap > Did you have the same issues on v6.14 or earlier? > > The smmu pm usage count underflow is concerning, the smmu pm should be > tied to the GPU device via device_link_add(). I've never seen > something similar, but I'm still on v6.14. > > Could you try reverting commit 0a679336dc17 ("iommu/arm-smmu: Set rpm > auto_suspend once during probe") > > BR, > -R 6.15-rc1 I've seen this bug exactly twice. NP to revert but not so sure with only a sample set of two, I could say the change fixes. Anyway, I'll revert and if I see the bug again, we know its not that. --- bod