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Fri, 14 Nov 2025 03:26:55 -0800 (PST) X-Google-Smtp-Source: AGHT+IFgKCyHJGBBYPB4qZv+EAl4Tx88PJN32VSjZcg29sFOWP5dg9DS3lwkBEwjYg2dmQ/BXtGF2A== X-Received: by 2002:a17:90a:d408:b0:33b:b020:597a with SMTP id 98e67ed59e1d1-343f99c1cc3mr3251153a91.0.1763119615473; Fri, 14 Nov 2025 03:26:55 -0800 (PST) Received: from [192.168.1.8] ([106.222.229.203]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3456516c622sm167599a91.9.2025.11.14.03.26.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 14 Nov 2025 03:26:55 -0800 (PST) Message-ID: <76523142-b337-4a31-90d2-c8477ef0b270@oss.qualcomm.com> Date: Fri, 14 Nov 2025 16:56:45 +0530 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 11/21] drm/msm/a6xx: Improve MX rail fallback in RPMH vote init To: Konrad Dybcio Cc: Rob Clark , Bjorn Andersson , Konrad Dybcio , Sean Paul , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Marijn Suijten , David Airlie , Simona Vetter , Jonathan Marek , Jordan Crouse , Will Deacon , Robin Murphy , Joerg Roedel , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Connor Abbott , linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev, devicetree@vger.kernel.org References: <20251110-kaana-gpu-support-v2-0-bef18acd5e94@oss.qualcomm.com> <20251110-kaana-gpu-support-v2-11-bef18acd5e94@oss.qualcomm.com> Content-Language: en-US From: Akhil P Oommen In-Reply-To: Content-Type: text/plain; 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This is not true for recent targets. So, rework the rpmh init >> sequence to probe and calculate the votes with the respective rails, ie, >> GX rails should use MxG as secondary rail and Cx rail should use MxA as >> the secondary rail. > > Is GMU always on Mx*A* and never Mx*C*? I believe the GMUs we have so far are always on MxA when it is available. -Akhil. > > Konrad