From mboxrd@z Thu Jan 1 00:00:00 1970 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 9156DEB64DA for ; Mon, 19 Jun 2023 10:02:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231975AbjFSKC3 (ORCPT ); Mon, 19 Jun 2023 06:02:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47658 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231848AbjFSKB6 (ORCPT ); Mon, 19 Jun 2023 06:01:58 -0400 Received: from mail-ed1-x52a.google.com (mail-ed1-x52a.google.com [IPv6:2a00:1450:4864:20::52a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 66035E5C for ; Mon, 19 Jun 2023 03:01:32 -0700 (PDT) Received: by mail-ed1-x52a.google.com with SMTP id 4fb4d7f45d1cf-51a2de3385fso4584801a12.0 for ; Mon, 19 Jun 2023 03:01:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1687168891; x=1689760891; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=mi0odYZrNrQKpGzw5pHs6LQO/1iyCGY9vkdXXwKkTF4=; b=L+yWMlBqSShj9sCq4emOy+ZP9U+SEJeb+06+PNfJW+hYojJwsDXMUbgjFV6jKeKpjm cxyLBTMywkj8ODTab8jKv3kWzIt98Yp7wvAATmXLFPEwIG43qCzBj8jyn8rRfpa3HAXT XFWfe9A3YQfW80ScopExHmLkWUC0hV+g8vEocIXnFgd4P43IHVGQgqBupJ65fcQTGSRk AyBbeYvEusX6q2KvMe8+mjmkmxsiCZLhQBAMaioWkENpt3uIe+QSVM2U4DFGWtVv/38B GODElrI693wmoWAtwZb7OCxEzHWSueBG/EPLVLDZWnRc37n2iv7Smk+nOdJCKLyUWeec 19bw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687168891; x=1689760891; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=mi0odYZrNrQKpGzw5pHs6LQO/1iyCGY9vkdXXwKkTF4=; b=VDQceQoM8roV9i7MJTkPqAIMS/JhJxIntC3nN3Bg+DAPIykpiidRaLch139ILse7Ys GJa9I5+HYOjCgquAVeytMC2cnTL+lCOXWxAuqUFfkIHRGtW/o3amRINMP7gxBbhir2x2 SVZX3qFXx2EH960zBf1x+7d1eGbehChgTfTtMQXFzi12zIqM4jR7PAJpoDQSuZ/uOjrI zO1gIjX1mxrWJ7iWdz7yueL+1S7iM0EIp7c9qilMmAcioTgxY/EUeoehqUGkS5/dOJRP O28HJSWS48k3RGPYrJz3f0wG7+dEDmkg2fpymM83GYtxx5VzM2aTcEzt0/JiEmSudB/8 JseQ== X-Gm-Message-State: AC+VfDwpU3h4mF1swBcxlZzkuPD/CkUuqJMqWVrK3UxBGM4ybq6UaTnd 0j2eH6+6onrfEuI1SjexOL5Elg== X-Google-Smtp-Source: ACHHUZ7iLPMfAVkQt+pj0GE9+mhW4YCjeFhwk799Y3AhojRcbkBWBNp6i4fChge21Aam9eSkWvKAew== X-Received: by 2002:a05:6402:12c2:b0:514:9d2f:10be with SMTP id k2-20020a05640212c200b005149d2f10bemr6230109edx.18.1687168890853; Mon, 19 Jun 2023 03:01:30 -0700 (PDT) Received: from [192.168.1.20] ([178.197.219.26]) by smtp.gmail.com with ESMTPSA id o8-20020aa7d3c8000000b0051a575c76e6sm1368098edr.43.2023.06.19.03.01.28 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 19 Jun 2023 03:01:30 -0700 (PDT) Message-ID: Date: Mon, 19 Jun 2023 12:01:27 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.12.0 Subject: Re: [PATCH v2 1/4] dt-bindings: firmware: qcom,scm: Document that SCM can be dma-coherent Content-Language: en-US To: Konrad Dybcio , Douglas Anderson , 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 , Andy Gross , Conor Dooley , Das Srinagesh , Krzysztof Kozlowski , Rob Herring , Robert Marko , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20230616081440.v2.1.Ie79b5f0ed45739695c9970df121e11d724909157@changeid> <23cecdde-2b24-a472-1497-5da9f1158c00@linaro.org> From: Krzysztof Kozlowski In-Reply-To: <23cecdde-2b24-a472-1497-5da9f1158c00@linaro.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 19/06/2023 12:00, Konrad Dybcio wrote: > On 18.06.2023 10:07, Krzysztof Kozlowski wrote: >> On 16/06/2023 17:14, Douglas Anderson wrote: >>> 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 > >> 2 > Forgot to press alt or something D'oh! Best regards, Krzysztof