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 X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=BAYES_00,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 299FDC6369E for ; Mon, 16 Nov 2020 17:44:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ED67922265 for ; Mon, 16 Nov 2020 17:44:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732921AbgKPRoG (ORCPT ); Mon, 16 Nov 2020 12:44:06 -0500 Received: from mail-oi1-f195.google.com ([209.85.167.195]:38221 "EHLO mail-oi1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387659AbgKPRoF (ORCPT ); Mon, 16 Nov 2020 12:44:05 -0500 Received: by mail-oi1-f195.google.com with SMTP id o25so19691831oie.5; Mon, 16 Nov 2020 09:44:03 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=aDraipXgK+j9ThnWRAuoxovGZzBsfeJ+1er3RHu2IRg=; b=HS7Rv8SN9c40WqIlZgs8x6gNpbLHpB3kiOfCReYV6Ub2Jj1XbdMDYgd6SwOJme6uqG sOsnY4KTPnOkWX9heSfM3KD2vwvjh0769wzRzfJRKeSkstl2qppJnUcAKK+rjWzBUFEk wZ75QAnaykAt/AiMBZMVfvTD95IPs9zm+C2T0vYzSxdc6eBmoUBvYrkWDaX2JTl1YawS c3e/HAE84SsPUZWCV4lzDONcVnYcswbI9Wo8PERtjf8xud/jSm+HaqIPApXDHlvNOCGy Q9sUcpGw7UZVYD01V9/USWh/mthf6S1PfmvR2pWw6Q+8Q9ODz2NbfwUX2hufcD1BEpDH TDMw== X-Gm-Message-State: AOAM531z1HJwHeeB/cPfN2EpMrp4g0PKYVkKGST35DnSNwL1KGJIPoP1 9a7xngDHa6+NWYk4bjfFM5x6+mKtog== X-Google-Smtp-Source: ABdhPJyGW1TUwaevOXIBOiYNkYrlF4+cuSOA6lvXI2KLAfneT0Oy+X6YDbPqkJCXzeLvwXi5szqGJg== X-Received: by 2002:aca:bbc2:: with SMTP id l185mr424763oif.172.1605548643381; Mon, 16 Nov 2020 09:44:03 -0800 (PST) Received: from xps15 (24-155-109-49.dyn.grandenetworks.net. [24.155.109.49]) by smtp.gmail.com with ESMTPSA id k11sm4871965otr.14.2020.11.16.09.44.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Nov 2020 09:44:02 -0800 (PST) Received: (nullmailer pid 1862027 invoked by uid 1000); Mon, 16 Nov 2020 17:44:01 -0000 Date: Mon, 16 Nov 2020 11:44:01 -0600 From: Rob Herring To: Yong Wu Cc: Rob Herring , youlin.pei@mediatek.com, Krzysztof Kozlowski , devicetree@vger.kernel.org, Nicolas Boichat , Tomasz Figa , Evan Green , anan.sun@mediatek.com, iommu@lists.linux-foundation.org, Joerg Roedel , Matthias Brugger , chao.hao@mediatek.com, Will Deacon , Greg Kroah-Hartman , srv_heupstream@mediatek.com, kernel-team@android.com, Robin Murphy , linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v4 04/24] dt-bindings: memory: mediatek: Add domain definition Message-ID: <20201116174401.GA1861980@bogus> References: <20201111123838.15682-1-yong.wu@mediatek.com> <20201111123838.15682-5-yong.wu@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201111123838.15682-5-yong.wu@mediatek.com> Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Wed, 11 Nov 2020 20:38:18 +0800, Yong Wu wrote: > In the latest SoC, there are several HW IP require a sepecial iova > range, mainly CCU and VPU has this requirement. Take CCU as a example, > CCU require its iova locate in the range(0x4000_0000 ~ 0x43ff_ffff). > > In this patch we add a domain definition for the special port. In the > example of CCU, If we preassign CCU port in domain1, then iommu driver > will prepare a independent iommu domain of the special iova range for it, > then the iova got from dma_alloc_attrs(ccu-dev) will locate in its special > range. > > This is a preparing patch for multi-domain support. > > Signed-off-by: Yong Wu > --- > include/dt-bindings/memory/mtk-smi-larb-port.h | 9 ++++++++- > 1 file changed, 8 insertions(+), 1 deletion(-) > Acked-by: Rob Herring