Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 734CEC678D5 for ; Tue, 7 Mar 2023 04:17:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230155AbjCGERo (ORCPT ); Mon, 6 Mar 2023 23:17:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33090 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230049AbjCGERP (ORCPT ); Mon, 6 Mar 2023 23:17:15 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EF10557D08; Mon, 6 Mar 2023 20:17:13 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 848E9611E0; Tue, 7 Mar 2023 04:17:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DF087C4339B; Tue, 7 Mar 2023 04:17:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1678162633; bh=RicJ3qXIV9Fl4AR02iRR+L+juREsdw4zlXJgemMP7OI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AN3YQNRKvoLZCpCmg3JTExSU9Hf90sHSWbFmkMrgeI83vZ28gCAg8WLSbNuEKzBit pRv/XUowGHbnr1JUDw8M7IpYZ6kTvEWqFGTOay6Bvac2m3E0C2UYCQzhjnSHPa0543 TToNFQgnFFgo7oDFxazQC4WAMppaQtQmtgSqU5DPymyQV9hlVlAhlHdb8ZdIzg37Pu H+vUbL7+FhI7HcdBL+KGD9zKteZGubbeZL2kwRDNMGn4h93up4ru34NvmM+kxG00Ji g/BmY8mHnYW07klJcTeKfRA9ci9gwzxNzN+jzQPzgIuN1BEee5G5Hxkx6X7Il0WN5s sNZLHNxINftQg== From: Bjorn Andersson To: helgaas@kernel.org, Krishna chaitanya chundru Cc: kishon@ti.com, stable@vger.kernel.org, Konrad Dybcio , linux-kernel@vger.kernel.org, quic_nitegupt@quicinc.com, linux-clk@vger.kernel.org, linux-pci@vger.kernel.org, Prasad Malisetty , mturquette@baylibre.com, svarbanov@mm-sol.com, dmitry.baryshkov@linaro.org, quic_vbadigan@quicinc.com, vkoul@kernel.org, manivannan.sadhasivam@linaro.org, "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , quic_skananth@quicinc.com, kw@linux.com, robh@kernel.org, bhelgaas@google.com, linux-arm-msm@vger.kernel.org, mka@chromium.org, quic_ramkri@quicinc.com, konrad.dybcio@somainline.org, swboyd@chromium.org, Rob Herring , quic_hemantk@quicinc.com, Krzysztof Kozlowski , agross@kernel.org, lpieralisi@kernel.org, linux-phy@lists.infradead.org Subject: Re: [PATCH V2] arm64: dts: qcom: sc7280: Mark PCIe controller as cache coherent Date: Mon, 6 Mar 2023 20:20:35 -0800 Message-Id: <167816282865.1458033.5335158204914566504.b4-ty@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <1677584952-17496-1-git-send-email-quic_krichai@quicinc.com> References: <1677584952-17496-1-git-send-email-quic_krichai@quicinc.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 28 Feb 2023 17:19:12 +0530, Krishna chaitanya chundru wrote: > If the controller is not marked as cache coherent, then kernel will > try to ensure coherency during dma-ops and that may cause data corruption. > So, mark the PCIe node as dma-coherent as the devices on PCIe bus are > cache coherent. > > Applied, thanks! [1/1] arm64: dts: qcom: sc7280: Mark PCIe controller as cache coherent commit: 8a63441e83724fee1ef3fd37b237d40d90780766 Best regards, -- Bjorn Andersson