| Message ID | 20240919-topic-apps_smmu_coherent-v1-0-5b3a8662403d@quicinc.com |
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Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7E5EF135417; Wed, 18 Sep 2024 22:57:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726700271; cv=none; b=PKwRG/LPDLMQf3YaWoZU0XYRKGDi8Xsehv7QtchXFDx/qzL4g3MX7msuWg1Nc3/ZgA7lf+2dhasAjMGonYXQ/Q396n2OObE4ISJb7N7QokFn/N1s3quMPIxlDd1xIuNe/zhBcp8oAzJhiJolVrnaIV9Thc3uWJtQPYahJCLp3jc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726700271; c=relaxed/simple; bh=PQJ0fnTaoCP3RrUPV2On94uyJzX0Ft0/kqfYjNPnNQY=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=gdrP7j/8wb2bKGNEiPywFrLrpksnzYDHl13KH/eHZQTxeGvQ7iUVhYVkG46InBHNMuISwniIjmFpC9LDE2/XOkhZwcF9qVpbCpCexnipQir4Fpe/6H4fa+44JkHjYUW1h2pKZ8+CIP8ghxDcBaRGxpNqPyy+WAcYDbvZCdOqRvY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=uMHD3WpF; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="uMHD3WpF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8F399C4CEC2; Wed, 18 Sep 2024 22:57:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1726700271; bh=PQJ0fnTaoCP3RrUPV2On94uyJzX0Ft0/kqfYjNPnNQY=; h=From:Subject:Date:To:Cc:From; b=uMHD3WpF85brH028BwHm9/R+x7fMB4nksZsbQTttLr3JZH+xzAVhErk9dFo4kqweF QB28xog74k6Ki+BZtPB/rfXFSXEHEt80RucKPZSou+ltheNtfjVBylysz2IyOo3IlA h4uTOHa92VyGimpNo7QFxRwWyqFslQ//ohUvJ+HYUGcuYuJhbDg7TuFfgqeINSIW3l 5tbS8ppXZwYG8d69xrSO2cU5fTQ1YV9HRzu6brAlRnzluojLpapibYaQtq6UusaIyZ DplamrqPj0s2RwkIfMtnKmS+nxJTeACZCt0qXEjMLvVro9uGNSi9bKNgw+fdZIiXLh aQpIJQfLC84kQ== From: Konrad Dybcio <konradybcio@kernel.org> Subject: [RFC PATCH 00/11] Affirm SMMU coherent pagetable walker capability on RPMh SoCs Date: Thu, 19 Sep 2024 00:57:13 +0200 Message-Id: <20240919-topic-apps_smmu_coherent-v1-0-5b3a8662403d@quicinc.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: <linux-arm-msm.vger.kernel.org> List-Subscribe: <mailto:linux-arm-msm+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-arm-msm+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAMla62YC/x3MTQqAIBBA4avErBMmC/q5SoSITTWLVJyKILp70 vJbvPeAUGISGIoHEl0sHHxGVRbgNutXUjxng0bdYF/16giRnbIxipF9P40LGyXyh8IWl7qz2ml sIecx0cL3vx6n9/0A5QnCqGoAAAA= X-Change-ID: 20240919-topic-apps_smmu_coherent-070f38a2c207 To: Bjorn Andersson <andersson@kernel.org>, Konrad Dybcio <konradybcio@kernel.org>, Rob Herring <robh@kernel.org>, Krzysztof Kozlowski <krzk+dt@kernel.org>, Conor Dooley <conor+dt@kernel.org>, cros-qcom-dts-watchers@chromium.org Cc: Marijn Suijten <marijn.suijten@somainline.org>, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Konrad Dybcio <quic_kdybcio@quicinc.com> X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1726700267; l=1794; i=quic_kdybcio@quicinc.com; s=20230215; h=from:subject:message-id; bh=PQJ0fnTaoCP3RrUPV2On94uyJzX0Ft0/kqfYjNPnNQY=; b=P3mbzr2DiFVwV9kQBSz/0dNPcoZ1ufgTeGArEdBKKyLP/d5rHs4N+8dVpSPNDhxdn8TIgX06E eq9ro0vj4WZDJoZlxhaEcC2BKt9HEHER+miHTHObzi34XTP5OwRsGrf X-Developer-Key: i=quic_kdybcio@quicinc.com; a=ed25519; pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms= |
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Affirm SMMU coherent pagetable walker capability on RPMh SoCs
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I only read back the SMMU config on X1E & 7280, but I have it on good authority that this concerns all RPMh SoCs. Sending as RFC just in case. Lacking coherency can hurt performance, but claiming coherency where it's absent would lead to a kaboom. Signed-off-by: Konrad Dybcio <quic_kdybcio@quicinc.com> --- Konrad Dybcio (11): arm64: dts: qcom: qdu1000: Affirm IDR0.CCTW on apps_smmu arm64: dts: qcom: sc7180: Affirm IDR0.CCTW on apps_smmu arm64: dts: qcom: sc8180x: Affirm IDR0.CCTW on apps_smmu arm64: dts: qcom: sc8280xp: Affirm IDR0.CCTW on apps_smmu arm64: dts: qcom: sdm670: Affirm IDR0.CCTW on apps_smmu arm64: dts: qcom: sdm845: Affirm IDR0.CCTW on apps_smmu arm64: dts: qcom: sm6350: Affirm IDR0.CCTW on apps_smmu arm64: dts: qcom: sm8150: Affirm IDR0.CCTW on apps_smmu arm64: dts: qcom: sm8350: Affirm IDR0.CCTW on apps_smmu arm64: dts: qcom: sm8450: Affirm IDR0.CCTW on apps_smmu arm64: dts: qcom: x1e80100: Affirm IDR0.CCTW on apps_smmu arch/arm64/boot/dts/qcom/qdu1000.dtsi | 1 + arch/arm64/boot/dts/qcom/sc7180.dtsi | 1 + arch/arm64/boot/dts/qcom/sc8180x.dtsi | 2 +- arch/arm64/boot/dts/qcom/sc8280xp.dtsi | 1 + arch/arm64/boot/dts/qcom/sdm670.dtsi | 1 + arch/arm64/boot/dts/qcom/sdm845.dtsi | 1 + arch/arm64/boot/dts/qcom/sm6350.dtsi | 1 + arch/arm64/boot/dts/qcom/sm8150.dtsi | 1 + arch/arm64/boot/dts/qcom/sm8350.dtsi | 1 + arch/arm64/boot/dts/qcom/sm8450.dtsi | 1 + arch/arm64/boot/dts/qcom/x1e80100.dtsi | 2 ++ 11 files changed, 12 insertions(+), 1 deletion(-) --- base-commit: 55bcd2e0d04c1171d382badef1def1fd04ef66c5 change-id: 20240919-topic-apps_smmu_coherent-070f38a2c207 Best regards,