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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 65FA3C433EF for ; Mon, 11 Oct 2021 23:25:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 516D860F22 for ; Mon, 11 Oct 2021 23:25:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235668AbhJKX1Q (ORCPT ); Mon, 11 Oct 2021 19:27:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53296 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235583AbhJKX1P (ORCPT ); Mon, 11 Oct 2021 19:27:15 -0400 Received: from mail-lf1-x129.google.com (mail-lf1-x129.google.com [IPv6:2a00:1450:4864:20::129]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1169EC061570; Mon, 11 Oct 2021 16:25:15 -0700 (PDT) Received: by mail-lf1-x129.google.com with SMTP id x27so79674007lfa.9; Mon, 11 Oct 2021 16:25:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=N3HcVRkt2qXB/rqH6SM+oiBx156PKAvxGuJmThzW5lg=; b=PylXWvUDbhk8vPjHREbuDTn0CSpLBOTJp37e+wxb3choCU3PWx+FhWZnd7uGiVdeMq EETtyJE3KDDOm4wOMQ9C8pb3WBxHioJyB/63lssZYEfgryU59vsnNloi2IP3bA9LI0DM NuKeKtNScgzSyAWJZSTphLEMocSCmDDgzqR/PAAUHZiWi1cMXDOpNBYudQCO1Xn62IBU nynPLSCooYja7RCL6kMlTtfl3uKpXh8XU1V9swZ1IlRO+Hm68rX4y9Ibo/fCCViRPPs6 O8O6kB2vRf6W9XYQmHbqCAhE3HHrXOi9sb8I4ue7NnZjhZgEE//X4o0DW9CFbCTaWkDq 16Mg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=N3HcVRkt2qXB/rqH6SM+oiBx156PKAvxGuJmThzW5lg=; b=yootKJei4YY6yTd9/ziro9HnQSlO49SUQHje6Pw7z2xFYi2cVpgULV6YmjXGS/rVQo Qa6yHY03zy/Oz7Ccl8L+SdgRwY0C2RLHpO2IVxkv0voJHarXDGFtdSknUeXZ7Uos+irc m63ywSHqnAjsmSvhEfkRazRvXfwZhK2M+bNAsBOc6GAv1DIaW61cJ6pNSmGC3g/sjunb qKUSn5JtRW7vFcF4IxBo20/dNci1wuII2rryZRQOqrcKQpCwWKZG9jODJV5pHN8fMXqM 2FfJEvMvBx2P2tpOnNxX4WrTjf0AMS6Wd2Xkuvf/TiJWyn0Wn280gFiDhDO57Xk/mGuS tnWw== X-Gm-Message-State: AOAM533h0oNs3uqSSTgEboEouEC7vpmIO/Rx6BMCYdKq3p9PtwZcRLEA amzMXlycqgkB8oxwfu63xpjMDtWMzIo= X-Google-Smtp-Source: ABdhPJzkLmFoRH8hukY+9X+MqeNzriUds4GWxpYakbwi1lHd75mruGbLWv/FsdXhMmNaOKZMqsjg9Q== X-Received: by 2002:a05:6512:b81:: with SMTP id b1mr30356228lfv.301.1633994713208; Mon, 11 Oct 2021 16:25:13 -0700 (PDT) Received: from [192.168.2.145] (94-29-10-181.dynamic.spd-mgts.ru. [94.29.10.181]) by smtp.googlemail.com with ESMTPSA id d4sm985076ljl.98.2021.10.11.16.25.12 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 11 Oct 2021 16:25:12 -0700 (PDT) Subject: Re: [PATCH v2 5/5] iommu/tegra-smmu: Support managed domains To: Thierry Reding , Joerg Roedel , Rob Herring Cc: Will Deacon , Robin Murphy , Nicolin Chen , Krishna Reddy , devicetree@vger.kernel.org, iommu@lists.linux-foundation.org, linux-tegra@vger.kernel.org References: <20210423163234.3651547-1-thierry.reding@gmail.com> <20210423163234.3651547-6-thierry.reding@gmail.com> From: Dmitry Osipenko Message-ID: <9b0f1fd2-887b-d685-f1b9-5848f392b8b8@gmail.com> Date: Tue, 12 Oct 2021 02:25:11 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <20210423163234.3651547-6-thierry.reding@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org 23.04.2021 19:32, Thierry Reding пишет: > From: Navneet Kumar > > Allow creating identity and DMA API compatible IOMMU domains. When > creating a DMA API compatible domain, make sure to also create the > required cookie. IOMMU_DOMAIN_DMA should be a disaster. It shouldn't work without preparing DRM and VDE drivers at first. We discussed this briefly in the past.