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[147.75.48.161]) by mx.google.com with ESMTPS id 17-20020a170902c21100b001d9efc7c6ddsi1416822pll.26.2024.02.12.22.00.06 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Feb 2024 22:00:06 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-62955-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.48.161 as permitted sender) client-ip=147.75.48.161; Authentication-Results: mx.google.com; arc=pass (i=1 spf=pass spfdomain=lst.de); spf=pass (google.com: domain of linux-kernel+bounces-62955-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.48.161 as permitted sender) smtp.mailfrom="linux-kernel+bounces-62955-linux.lists.archive=gmail.com@vger.kernel.org" Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sy.mirrors.kernel.org (Postfix) with ESMTPS id 8A120B21F21 for ; Tue, 13 Feb 2024 05:54:40 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 220E2125DE; Tue, 13 Feb 2024 05:54:33 +0000 (UTC) Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C8C9711724 for ; Tue, 13 Feb 2024 05:54:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.95.11.211 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707803672; cv=none; b=fPmZckGeEbMUR4/+WGPjfYV9pDYHsRJrMQzFh/QhioCHdnGWngqBo6v59kpkRH+dh+66zY6/5KlnohaU7Pfc1fGViPBQEmhyF7TVBgzTIuVVvXA6/rdj2Mw3P0whXZsFCIl2PmZ1+3FD2PK6skul5q65hVvVbidS3At5ZIQTi7s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707803672; c=relaxed/simple; bh=YEAhsWIB1r8/9ua/DG5w6tONOQzGQ2O+bj237UZN9sA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=IyVNk7g3hM/+cB8+NReJtH0oYhh4Kw5u/DgmfnOfIORJq4R1Bieju7QLdkjeiiLz8r4Z9LRge1iUD3FTVK46ORqsELy1MqWb4WazVIq7MeNdFFyIQjmmPjecaiLvKEIthyfkQJ2ocWCp++gCyVAfbdHXJy3zKgu45cfcb/kEsiY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de; spf=pass smtp.mailfrom=lst.de; arc=none smtp.client-ip=213.95.11.211 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lst.de Received: by verein.lst.de (Postfix, from userid 2407) id 98A87227A87; Tue, 13 Feb 2024 06:54:26 +0100 (CET) Date: Tue, 13 Feb 2024 06:54:26 +0100 From: Christoph Hellwig To: Howard Yen Cc: hch@lst.de, m.szyprowski@samsung.com, robin.murphy@arm.com, gregkh@linuxfoundation.org, andriy.shevchenko@linux.intel.com, rafael@kernel.org, broonie@kernel.org, james@equiv.tech, james.clark@arm.com, masahiroy@kernel.org, linux-kernel@vger.kernel.org, iommu@lists.linux.dev Subject: Re: [PATCH v3] dma-coherent: add support for multi coherent rmems per dev Message-ID: <20240213055426.GA22451@lst.de> References: <20240208152808.3712149-1-howardyen@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240208152808.3712149-1-howardyen@google.com> User-Agent: Mutt/1.5.17 (2007-11-01) On Thu, Feb 08, 2024 at 03:28:05PM +0000, Howard Yen wrote: > Add support for multiple coherent rmems per device. Why?