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=-5.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable 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 EADDFC4BA14 for ; Wed, 26 Feb 2020 15:21:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BB7CB20838 for ; Wed, 26 Feb 2020 15:21:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1582730486; bh=icNUGw+8jCJYdKySY2axKM8VSXIJ4Aoc/LbwObFhmsA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=bCiGFhMw8iXexmBgn4ugGZT0rvfnoU0xOcrestF3B0JCFnR5yUC0NfzI2b6lCQx0o l9sYDnDL+ahsRI+oE3nPRffi0ZYPdED03y2CCrsRM7TBjTjsJPVgwqEmbDsLphBTDc eNjVYArP0VWFcgCrbxho53KqFsqVW26p0yFxve6Y= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728090AbgBZPVZ (ORCPT ); Wed, 26 Feb 2020 10:21:25 -0500 Received: from mail-oi1-f194.google.com ([209.85.167.194]:42639 "EHLO mail-oi1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727023AbgBZPVZ (ORCPT ); Wed, 26 Feb 2020 10:21:25 -0500 Received: by mail-oi1-f194.google.com with SMTP id j132so3353538oih.9; Wed, 26 Feb 2020 07:21:24 -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:user-agent; bh=GmR3MdaCGyVwm72nEz3XbzIqX5lVd7f4sUKQMFOYdvk=; b=BoPxAAF3Ux0q/t5uOChOfYL5A2cRQSYw1SlACMRASPA6JAG7JSLzOXH5gRB/9n3kUY Z35J9eJEliaj8Mkhlh0hIIlLv+BJ/annRMzdgRLNvkGodKS9VpTk0LdgYbqm+vvH+CFr +B87Mp6I3YU2vFZhVdlgjXD9hmJr8mLEdI3DuI3FfnXajx46Z/2OwfnUCf2yKAayCzaN MlBW0LIRpzv3EzR+LyCLLTniS10/LfwDitfQm84Izq5xQ3ee5pNCEqgoZqWovftZhetc 2+9GQN0hMa6Y6BTmLI5XaLSWo3CKsdJG7snJlDl0wVgtNylXUOosdDIXd+LQyIxGaaiU LGsQ== X-Gm-Message-State: APjAAAUpYkxYxW+wE19EHVIKeOjdIOVEL70tYYQhljHrQWrlHSru6I6V //tajqZRv5wklgyCkq66xw== X-Google-Smtp-Source: APXvYqxuEUieMlzM/vscfnnAnRm10zUyhU9fU+Moe+9Ni33jZvHACFKoPWwEWTwKsYYoFrg0KrSvoA== X-Received: by 2002:aca:a857:: with SMTP id r84mr3426091oie.41.1582730484600; Wed, 26 Feb 2020 07:21:24 -0800 (PST) Received: from rob-hp-laptop (24-155-109-49.dyn.grandenetworks.net. [24.155.109.49]) by smtp.gmail.com with ESMTPSA id 76sm857000otg.68.2020.02.26.07.21.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 26 Feb 2020 07:21:23 -0800 (PST) Received: (nullmailer pid 25778 invoked by uid 1000); Wed, 26 Feb 2020 15:21:23 -0000 Date: Wed, 26 Feb 2020 09:21:23 -0600 From: Rob Herring To: Peter Ujfalusi Cc: vkoul@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, dan.j.williams@intel.com, grygorii.strashko@ti.com, devicetree@vger.kernel.org Subject: Re: [PATCH 1/2] dt-bindings: dma: ti: k3-udma: Update for atype support (virtualization) Message-ID: <20200226152123.GA25719@bogus> References: <20200218143126.11361-1-peter.ujfalusi@ti.com> <20200218143126.11361-2-peter.ujfalusi@ti.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200218143126.11361-2-peter.ujfalusi@ti.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 18 Feb 2020 16:31:25 +0200, Peter Ujfalusi wrote: > In UDMA each channel can use different ATYPE value which tells UDMA how > the addresses in the descriptors should be treated: > 0: pointers are physical addresses (no translation) > 1: pointers are intermediate addresses (PVU) > 2: pointers are virtual addresses (SMMU) > > When virtualized environment is used then the dma binding should use > additional cell to configure the desired ATYPE for the channel. > > Signed-off-by: Peter Ujfalusi > --- > .../devicetree/bindings/dma/ti/k3-udma.yaml | 19 ++++++++++++++++++- > 1 file changed, 18 insertions(+), 1 deletion(-) > Reviewed-by: Rob Herring