From patchwork Fri Jun 16 15:14:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Doug Anderson X-Patchwork-Id: 13282876 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 9D107EB64D7 for ; Fri, 16 Jun 2023 15:18:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345650AbjFPPSV (ORCPT ); Fri, 16 Jun 2023 11:18:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41376 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232085AbjFPPSU (ORCPT ); Fri, 16 Jun 2023 11:18:20 -0400 Received: from mail-pf1-x434.google.com (mail-pf1-x434.google.com [IPv6:2607:f8b0:4864:20::434]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3DE4430FE for ; Fri, 16 Jun 2023 08:18:19 -0700 (PDT) Received: by mail-pf1-x434.google.com with SMTP id d2e1a72fcca58-6667643e4b3so756470b3a.2 for ; Fri, 16 Jun 2023 08:18:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1686928699; x=1689520699; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=JjK5uSBUBCtKUiHKGw2fDzcH80L9Te7xYyX5HYmSKZk=; b=Gazntjz7fU9vAVPqqzRdDRac27cecBITu2YvqyJ/AerXxYtOfZN2wz718g7xcI3NJj iGK8DZvU6z1+Z3BId6izQhVmrGv1ygnshSs9Q09cAXjmSoRXh1OzSNajVzmt9kbmlqwM zgNgQpgihqEhJaCqPN565bpB2w/NQFTyfXs2o= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686928699; x=1689520699; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=JjK5uSBUBCtKUiHKGw2fDzcH80L9Te7xYyX5HYmSKZk=; b=MgY1MBwUve0ZvRpHZ2+tkF92ZB6LQ/wo6r2nh/KvoLDLbMCn2HUhjg3PIOgmUenCmU p8Qx8sy/ZEPhhQCh5+fDnluqsiuHrfe7JKfwjY1TWrKYDW9qTwo7vSHYAjA2UWUbognL MrOATBE+QZluuNtICeS3/KRWktmVcmSy0ByzXMSjq15j6YnGyv79pQxDcCS+SJorS/bj occkAs9A06byLEIU6e4nlpTIT8vRgM3FxSQxi/oB7NxX34DXoe6fk5Ky9uCimj/MPdm6 1maAyqUw2tVH9CYzgI7/OZrBN33+5/p++jao8spFz7AO3RsEKJwoXDtrsstltK1dejLD IF+g== X-Gm-Message-State: AC+VfDzpB7YqfvsW7fMgcxvZIciIcrtli3Kp7OYyYenpmVuOjHm+Ctmr S6CqzjHw1I6HpwRufCy4XrCWfA== X-Google-Smtp-Source: ACHHUZ4BIE6TbLK8kpe1owsqwPPBjFMHGvq1+gRfy4HufbUwKn/5NGiepHfgtjSj1AGPlndAamWF0w== X-Received: by 2002:a05:6a21:7890:b0:11f:1aa2:666b with SMTP id bf16-20020a056a21789000b0011f1aa2666bmr1412485pzc.32.1686928698728; Fri, 16 Jun 2023 08:18:18 -0700 (PDT) Received: from tictac2.mtv.corp.google.com ([2620:15c:9d:2:3cfa:2bcd:1a5:27ce]) by smtp.gmail.com with ESMTPSA id a12-20020aa780cc000000b0063d24fcc2besm4593656pfn.125.2023.06.16.08.18.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Jun 2023 08:18:18 -0700 (PDT) From: Douglas Anderson To: andersson@kernel.org Cc: amit.pundir@linaro.org, Will Deacon , sumit.semwal@linaro.org, linux-arm-msm@vger.kernel.org, konrad.dybcio@somainline.org, linux-arm-kernel@lists.infradead.org, Stephan Gerhold , Manivannan Sadhasivam , Nikita Travkin , Stephen Boyd , Sibi Sankar , Douglas Anderson , Andy Gross , Conor Dooley , Das Srinagesh , Konrad Dybcio , Krzysztof Kozlowski , Rob Herring , Robert Marko , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 1/4] dt-bindings: firmware: qcom,scm: Document that SCM can be dma-coherent Date: Fri, 16 Jun 2023 08:14:38 -0700 Message-ID: <20230616081440.v2.1.Ie79b5f0ed45739695c9970df121e11d724909157@changeid> X-Mailer: git-send-email 2.41.0.162.gfafddb0af9-goog MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Trogdor devices use firmware backed by TF-A instead of Qualcomm's normal TZ. On TF-A we end up mapping memory as cacheable. Specifically, you can see in Trogdor's TF-A code [1] in qti_sip_mem_assign() that we call qti_mmap_add_dynamic_region() with MT_RO_DATA. This translates down to MT_MEMORY instead of MT_NON_CACHEABLE or MT_DEVICE. Let's allow devices like trogdor to be described properly by allowing "dma-coherent" in the SCM node. Signed-off-by: Douglas Anderson Acked-by: Krzysztof Kozlowski --- Changes in v2: - Bindings change new for v2. Documentation/devicetree/bindings/firmware/qcom,scm.yaml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/firmware/qcom,scm.yaml b/Documentation/devicetree/bindings/firmware/qcom,scm.yaml index 367d04ad1923..83381f3a1341 100644 --- a/Documentation/devicetree/bindings/firmware/qcom,scm.yaml +++ b/Documentation/devicetree/bindings/firmware/qcom,scm.yaml @@ -71,6 +71,8 @@ properties: minItems: 1 maxItems: 3 + dma-coherent: true + interconnects: maxItems: 1 From patchwork Fri Jun 16 15:14:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Doug Anderson X-Patchwork-Id: 13282877 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 996EAEB64DA for ; Fri, 16 Jun 2023 15:18:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345918AbjFPPSZ (ORCPT ); Fri, 16 Jun 2023 11:18:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41406 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232085AbjFPPSW (ORCPT ); Fri, 16 Jun 2023 11:18:22 -0400 Received: from mail-pf1-x42d.google.com (mail-pf1-x42d.google.com [IPv6:2607:f8b0:4864:20::42d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7A67530FF for ; Fri, 16 Jun 2023 08:18:21 -0700 (PDT) Received: by mail-pf1-x42d.google.com with SMTP id d2e1a72fcca58-666ac5b63beso758169b3a.0 for ; Fri, 16 Jun 2023 08:18:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1686928701; x=1689520701; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=C5Nhe0vFqRJeb1rQZmWBqjIq4WANx09DJJT4hbC9des=; b=QwpecvflqoGMWutvgaPcnPls7DoObDDt0d0vjpKsZE6NG1fUoWbpGIAIbISWoE12o9 Hls8pUslxLD0pUrP38RxhYHlsV2zpEWl+Sff4pDuzEc6iMzkP9epITtxGOCV6uGHqKYH wpa74oTP7DJWe/n7NZp3wgbzqYdIg9kCTuHro= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686928701; x=1689520701; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=C5Nhe0vFqRJeb1rQZmWBqjIq4WANx09DJJT4hbC9des=; b=C3LKJMgKc+bC2aMMP+IDho2/3A1iIMBwn8eh51gTOc/oa0Gw+AlNsghCwtvqc5FHUI q96PmxoCfCQsQFFcjYt5aDKWcA7Z9LyT4qKoPEvuS+4aK3VKerkRSZfv5xcnGZy1NFoZ FQQbqNtU2Aq/lz8bX7Exp3VI8ZrGhzHbFATX5GUbs8FPpzaAeXiIadFoQfnLNwDzs3LG q56eUvPLFd3QwlJifizz8d1hKpDvGSRPuRE0eQGntqlvg6NczuDukDrOzG8+tUoUD2NG LvpKZrea7si+4rnZiBYVVBkJtjLPq9XxB5MqAVUGRy6c7MSvK/cFI/0FtcDpgxmqu++i LC/Q== X-Gm-Message-State: AC+VfDxfx2R9Pl8SzztrONz05m1uZTr5RGajTNcZutw+iI4oPc3nZ7sk Zn7K7nepg2bdYA5nuQ7pnBM0wQ== X-Google-Smtp-Source: ACHHUZ5kULJgYYKPVBKzjr2NKrXoKtFUZad8SKsKaJsNvvuqBIOeHlOBYw+g/i2luJy6VuTljO125Q== X-Received: by 2002:a05:6a00:1392:b0:651:3e9d:2a05 with SMTP id t18-20020a056a00139200b006513e9d2a05mr2713555pfg.19.1686928700957; Fri, 16 Jun 2023 08:18:20 -0700 (PDT) Received: from tictac2.mtv.corp.google.com ([2620:15c:9d:2:3cfa:2bcd:1a5:27ce]) by smtp.gmail.com with ESMTPSA id a12-20020aa780cc000000b0063d24fcc2besm4593656pfn.125.2023.06.16.08.18.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Jun 2023 08:18:20 -0700 (PDT) From: Douglas Anderson To: andersson@kernel.org Cc: amit.pundir@linaro.org, Will Deacon , sumit.semwal@linaro.org, linux-arm-msm@vger.kernel.org, konrad.dybcio@somainline.org, linux-arm-kernel@lists.infradead.org, Stephan Gerhold , Manivannan Sadhasivam , Nikita Travkin , Stephen Boyd , Sibi Sankar , Douglas Anderson , Andy Gross , Conor Dooley , Konrad Dybcio , Krzysztof Kozlowski , Rob Herring , Sibi Sankar , cros-qcom-dts-watchers@chromium.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 2/4] arm64: dts: qcom: sc7180: Mark SCM as dma-coherent for IDP Date: Fri, 16 Jun 2023 08:14:39 -0700 Message-ID: <20230616081440.v2.2.I3c17d546d553378aa8a0c68c3fe04bccea7cba17@changeid> X-Mailer: git-send-email 2.41.0.162.gfafddb0af9-goog In-Reply-To: <20230616081440.v2.1.Ie79b5f0ed45739695c9970df121e11d724909157@changeid> References: <20230616081440.v2.1.Ie79b5f0ed45739695c9970df121e11d724909157@changeid> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org sc7180-idp is, for most intents and purposes, a trogdor device. Specifically, sc7180-idp is designed to run the same style of firmware as trogdor devices. This can be seen from the fact that IDP has the same "Reserved memory changes" in its device tree that trogdor has. Recently it was realized that we need to mark SCM as dma-coherent to match what trogdor's style of firmware (based on TF-A) does [1]. That means we need this dma-coherent tag on IDP as well. Without this, on newer versions of Linux, specifically those with commit 7bd6680b47fa ("Revert "Revert "arm64: dma: Drop cache invalidation from arch_dma_prep_coherent()"""), WiFi will fail to work. At bootup you'll see: qcom_scm firmware:scm: Assign memory protection call failed -22 qcom_rmtfs_mem 94600000.memory: assign memory failed qcom_rmtfs_mem: probe of 94600000.memory failed with error -22 [1] https://lore.kernel.org/r/20230615145253.1.Ic62daa649b47b656b313551d646c4de9a7da4bd4@changeid Fixes: 7bd6680b47fa ("Revert "Revert "arm64: dma: Drop cache invalidation from arch_dma_prep_coherent()""") Fixes: f5ab220d162c ("arm64: dts: qcom: sc7180: Add remoteproc enablers") Signed-off-by: Douglas Anderson --- I realized that this needed to be in IDP as well and that the IDP patch actually needed to come _before_ the trogdor one given the order that things landed upstream. I still left most of the description of the problem in the trogdor patch, though. Hopefully that's OK. Changes in v2: - sc7180-IDP patch added for v2. arch/arm64/boot/dts/qcom/sc7180-idp.dts | 5 +++++ arch/arm64/boot/dts/qcom/sc7180.dtsi | 2 +- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/sc7180-idp.dts b/arch/arm64/boot/dts/qcom/sc7180-idp.dts index 9f052270e090..299ef5dc225a 100644 --- a/arch/arm64/boot/dts/qcom/sc7180-idp.dts +++ b/arch/arm64/boot/dts/qcom/sc7180-idp.dts @@ -393,6 +393,11 @@ &remoteproc_mpss { qcom,spare-regs = <&tcsr_regs_2 0xb3e4>; }; +&scm { + /* TF-A firmware maps memory cached so mark dma-coherent to match. */ + dma-coherent; +}; + &sdhc_1 { status = "okay"; diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi index f479cab8ab45..a65be760d1a7 100644 --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi @@ -369,7 +369,7 @@ CLUSTER_SLEEP_0: cluster-sleep-0 { }; firmware { - scm { + scm: scm { compatible = "qcom,scm-sc7180", "qcom,scm"; }; }; From patchwork Fri Jun 16 15:14:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Doug Anderson X-Patchwork-Id: 13282878 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 E9C53EB64DB for ; Fri, 16 Jun 2023 15:18:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345924AbjFPPS0 (ORCPT ); Fri, 16 Jun 2023 11:18:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41430 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345917AbjFPPSZ (ORCPT ); Fri, 16 Jun 2023 11:18:25 -0400 Received: from mail-pf1-x433.google.com (mail-pf1-x433.google.com [IPv6:2607:f8b0:4864:20::433]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C096C358E for ; Fri, 16 Jun 2023 08:18:23 -0700 (PDT) Received: by mail-pf1-x433.google.com with SMTP id d2e1a72fcca58-666aa1b79a3so775319b3a.3 for ; Fri, 16 Jun 2023 08:18:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1686928703; x=1689520703; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=4bzr12EWQk1Ia1QIrIwm9/FyosBVEjDXlJSMbab2hS4=; b=LUUemacRAYGTnOP8agRg8L7wFh3FfgjT5qcwrPkVa2r7X32BpPmPLJs+wZcR7Cuj1d LRkHyFDtzuJGJ1WRqyRW1P+Sg8ebz6yvixHJPDQeiDczvn7dK6E3rVErs+O41nJNWW8l w5XzPugEJUYOu7KbDIOLAkAKN92EWh4EMk6iE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686928703; x=1689520703; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=4bzr12EWQk1Ia1QIrIwm9/FyosBVEjDXlJSMbab2hS4=; b=XpR+nNrUIQSC2UzdiU0av//BZL1sRjyrzSHcCjEmLAJ4Vo+SOur4iRe5ZhmdYuvLS3 9nyrCUAvFZOOTig+9g8DViQrtshe7v40Nma+KXnuqU69zwcNR6+veoNHszRuS9vB7VLZ ItknLj4O+HfEqdgvvBB2lR2xdMlQhHYX6LvPYXZ0/pikIgmpFORQBt1/BMAxpxALY30P 5snvlaQIwZhvitSwIszm6L/qcazpHzIuqmDywhJ7453ZjkhB15EhvJVzyEZYafBGK2iW EXGCvr7H34UmBEDyj9E8DHAH5CnHbdnExmKo1Cc9XudwRieA1zSB45mWLRWmDwmjo5U2 Cpeg== X-Gm-Message-State: AC+VfDyyeZU2eXGaQZ3zxgg/Wo/jHH1S0krn1qGR6nrXARPdMXr+P7uG uPjcCj0hhlvHCCO5lLjHYIHREA== X-Google-Smtp-Source: ACHHUZ6q/PKHT/Y8LJI0/Lhl1x89/ervnctEFB9g0IQqT1NdRVzz9jh8vZkPG/Uu4lHnWKRC4m93Hw== X-Received: by 2002:a05:6a00:995:b0:664:2f24:5578 with SMTP id u21-20020a056a00099500b006642f245578mr2788544pfg.13.1686928703185; Fri, 16 Jun 2023 08:18:23 -0700 (PDT) Received: from tictac2.mtv.corp.google.com ([2620:15c:9d:2:3cfa:2bcd:1a5:27ce]) by smtp.gmail.com with ESMTPSA id a12-20020aa780cc000000b0063d24fcc2besm4593656pfn.125.2023.06.16.08.18.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Jun 2023 08:18:22 -0700 (PDT) From: Douglas Anderson To: andersson@kernel.org Cc: amit.pundir@linaro.org, Will Deacon , sumit.semwal@linaro.org, linux-arm-msm@vger.kernel.org, konrad.dybcio@somainline.org, linux-arm-kernel@lists.infradead.org, Stephan Gerhold , Manivannan Sadhasivam , Nikita Travkin , Stephen Boyd , Sibi Sankar , Douglas Anderson , Konrad Dybcio , Andy Gross , Conor Dooley , Krzysztof Kozlowski , Rob Clark , Rob Herring , cros-qcom-dts-watchers@chromium.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 3/4] arm64: dts: qcom: sc7180: Mark SCM as dma-coherent for trogdor Date: Fri, 16 Jun 2023 08:14:40 -0700 Message-ID: <20230616081440.v2.3.Ic62daa649b47b656b313551d646c4de9a7da4bd4@changeid> X-Mailer: git-send-email 2.41.0.162.gfafddb0af9-goog In-Reply-To: <20230616081440.v2.1.Ie79b5f0ed45739695c9970df121e11d724909157@changeid> References: <20230616081440.v2.1.Ie79b5f0ed45739695c9970df121e11d724909157@changeid> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Trogdor devices use firmware backed by TF-A instead of Qualcomm's normal TZ. On TF-A we end up mapping memory as cacheable. Specifically, you can see in Trogdor's TF-A code [1] in qti_sip_mem_assign() that we call qti_mmap_add_dynamic_region() with MT_RO_DATA. This translates down to MT_MEMORY instead of MT_NON_CACHEABLE or MT_DEVICE. Apparently Qualcomm's normal TZ implementation maps the memory as non-cacheable. Let's add the "dma-coherent" attribute to the SCM for trogdor. Adding "dma-coherent" like this fixes WiFi on sc7180-trogdor devices. WiFi was broken as of commit 7bd6680b47fa ("Revert "Revert "arm64: dma: Drop cache invalidation from arch_dma_prep_coherent()"""). Specifically at bootup we'd get: qcom_scm firmware:scm: Assign memory protection call failed -22 qcom_rmtfs_mem 94600000.memory: assign memory failed qcom_rmtfs_mem: probe of 94600000.memory failed with error -22 From discussion on the mailing lists [2] and over IRC [3], it was determined that we should always have been tagging the SCM as dma-coherent on trogdor but that the old "invalidate" happened to make things work most of the time. Tagging it properly like this is a much more robust solution. [1] https://chromium.googlesource.com/chromiumos/third_party/arm-trusted-firmware/+/refs/heads/firmware-trogdor-13577.B/plat/qti/common/src/qti_syscall.c [2] https://lore.kernel.org/r/20230614165904.1.I279773c37e2c1ed8fbb622ca6d1397aea0023526@changeid [3] https://oftc.irclog.whitequark.org/linux-msm/2023-06-15 Fixes: 7bd6680b47fa ("Revert "Revert "arm64: dma: Drop cache invalidation from arch_dma_prep_coherent()""") Fixes: 7ec3e67307f8 ("arm64: dts: qcom: sc7180-trogdor: add initial trogdor and lazor dt") Reviewed-by: Konrad Dybcio Signed-off-by: Douglas Anderson --- Changes in v2: - Add comment in dts. - Moved scm node out of pinctrl section to the proper place. arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi index ca6920de7ea8..1472e7f10831 100644 --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi @@ -892,6 +892,11 @@ &remoteproc_mpss { qcom,spare-regs = <&tcsr_regs_2 0xb3e4>; }; +&scm { + /* TF-A firmware maps memory cached so mark dma-coherent to match. */ + dma-coherent; +}; + &sdhc_1 { status = "okay"; From patchwork Fri Jun 16 15:14:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Doug Anderson X-Patchwork-Id: 13282879 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 D886AEB64D8 for ; Fri, 16 Jun 2023 15:18:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345956AbjFPPSm (ORCPT ); Fri, 16 Jun 2023 11:18:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41474 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345927AbjFPPS1 (ORCPT ); Fri, 16 Jun 2023 11:18:27 -0400 Received: from mail-pf1-x42c.google.com (mail-pf1-x42c.google.com [IPv6:2607:f8b0:4864:20::42c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F1D4E3590 for ; Fri, 16 Jun 2023 08:18:25 -0700 (PDT) Received: by mail-pf1-x42c.google.com with SMTP id d2e1a72fcca58-666a228d244so756748b3a.1 for ; Fri, 16 Jun 2023 08:18:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1686928705; x=1689520705; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=VIqsH2Iv+JcyNkylOi9qtvbVK2jAXhmRaUsdt3ONyh4=; b=GpPAIZitPXFRSuOZt2/v1lUUx6zLZ+8adsfg0EcyOH/0Zb2pls1gvbR0yXhpS2nQ1a udqKcrhHiCVT91HKPEz/QAZXyFMGjBypbLotzvurvYwRmhTXSWW3LGdCQpSqQeFArnhE XS9LKJvRnA+C8924skamWh5ZKpxdrCWSQLz04= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686928705; x=1689520705; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=VIqsH2Iv+JcyNkylOi9qtvbVK2jAXhmRaUsdt3ONyh4=; b=JsFtMXfMxoioRyOzq4uWAHiZRwaJzGDyCZPw2f0Gd2u4DejM749XhlcU6vVUdKDxtZ MZAZg5SIuR04EaNDNh26LUUDEUA2B0ETcLqRMeLhIqy7urVjGozKFgmv1UgzasM75pog JAfI+Fyq1rnYpIkAaVisAIrLvklBYJkK8LFKoYE+xWHBz0clYWAPyfsud6f6cSXVKCH9 1cYXCw2F0xcyQ0N4FBcj7mBdjN55arkdSaWEFhXrg/nzYe4gBO5eRtYyueVrn3U1R1Hx bSYvgTL3CeSYyaQrqQgrPgGaNBdLO/Xhg1LVZfQwZISFt0jOL9BJdQINFyatwygATjmi hy3g== X-Gm-Message-State: AC+VfDzrJcXa6Ob+1u7R7hJSqHS3IQ0bViOmVV9rLB5KXco1oEfZPHdj Vr0+FNlMG+zTG4In+D4SfS6hspfaV9yv5aHPHXRm2hrG X-Google-Smtp-Source: ACHHUZ4kiLB93/ITh5JfoMue+NcL7jHg5BRy3O4ysBFELCyhx65drmzzRSsbFhR7aX1DfB3Ku3E6ag== X-Received: by 2002:a05:6a20:158a:b0:114:7637:3451 with SMTP id h10-20020a056a20158a00b0011476373451mr2561868pzj.37.1686928705404; Fri, 16 Jun 2023 08:18:25 -0700 (PDT) Received: from tictac2.mtv.corp.google.com ([2620:15c:9d:2:3cfa:2bcd:1a5:27ce]) by smtp.gmail.com with ESMTPSA id a12-20020aa780cc000000b0063d24fcc2besm4593656pfn.125.2023.06.16.08.18.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Jun 2023 08:18:24 -0700 (PDT) From: Douglas Anderson To: andersson@kernel.org Cc: amit.pundir@linaro.org, Will Deacon , sumit.semwal@linaro.org, linux-arm-msm@vger.kernel.org, konrad.dybcio@somainline.org, linux-arm-kernel@lists.infradead.org, Stephan Gerhold , Manivannan Sadhasivam , Nikita Travkin , Stephen Boyd , Sibi Sankar , Douglas Anderson , Andy Gross , Conor Dooley , Konrad Dybcio , Krzysztof Kozlowski , Rajendra Nayak , Rob Herring , cros-qcom-dts-watchers@chromium.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 4/4] arm64: dts: qcom: sc7280: Mark SCM as dma-coherent for chrome devices Date: Fri, 16 Jun 2023 08:14:41 -0700 Message-ID: <20230616081440.v2.4.I21dc14a63327bf81c6bb58fe8ed91dbdc9849ee2@changeid> X-Mailer: git-send-email 2.41.0.162.gfafddb0af9-goog In-Reply-To: <20230616081440.v2.1.Ie79b5f0ed45739695c9970df121e11d724909157@changeid> References: <20230616081440.v2.1.Ie79b5f0ed45739695c9970df121e11d724909157@changeid> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Just like for sc7180 devices using the Chrome bootflow (AKA trogdor and IDP), sc7280 devices using the Chrome bootflow also need their firmware marked dma-coherent. On sc7280 this wasn't causing WiFi to fail to startup, since WiFi works differently there. However, on sc7280 devices we were still getting the message at bootup after commit 7bd6680b47fa ("Revert "Revert "arm64: dma: Drop cache invalidation from arch_dma_prep_coherent()"""): qcom_scm firmware:scm: Assign memory protection call failed -22 qcom_rmtfs_mem 9c900000.memory: assign memory failed qcom_rmtfs_mem: probe of 9c900000.memory failed with error -22 We should mark SCM properly just like we did for trogdor. Fixes: 7bd6680b47fa ("Revert "Revert "arm64: dma: Drop cache invalidation from arch_dma_prep_coherent()""") Fixes: 7a1f4e7f740d ("arm64: dts: qcom: sc7280: Add basic dts/dtsi files for sc7280 soc") Signed-off-by: Douglas Anderson --- I marked this as "Fixes" for the patch that first added the SCM node to sc7280. Given all the reorganization of the files it wouldn't be all that easy to really backport it to there, but that should be OK. Things seemed to work fine before commit 7bd6680b47fa ("Revert "Revert "arm64: dma: Drop cache invalidation from arch_dma_prep_coherent()""") anyway. Changes in v2: - sc7280 patch new for v2. arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi | 5 +++++ arch/arm64/boot/dts/qcom/sc7280.dtsi | 2 +- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi b/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi index f562e4d2b655..2e1cd219fc18 100644 --- a/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi @@ -79,6 +79,11 @@ &remoteproc_wpss { firmware-name = "ath11k/WCN6750/hw1.0/wpss.mdt"; }; +&scm { + /* TF-A firmware maps memory cached so mark dma-coherent to match. */ + dma-coherent; +}; + &wifi { status = "okay"; diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi index 2fd1d3c0eb34..36f0bb9b3cbb 100644 --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi @@ -656,7 +656,7 @@ memory@80000000 { }; firmware { - scm { + scm: scm { compatible = "qcom,scm-sc7280", "qcom,scm"; }; };