From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.18]) (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 0B12E154BFC; Sat, 24 Aug 2024 07:58:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724486299; cv=none; b=aPHdWO+5ppoUPOWFYcnJfb14X2ZNg/TmlnO1/qGX1NkNl6y3Tjs/URXKVWufVpi4Q5citdu1giIDdNYUmYQgbpMfHbeZ/HAogPx54mcjpEq1Vw8bEwyoaJEuOrDd3cYJaAd/dGMOERLHR5s0eeyvQGbcJpVIkrPNxkR2Ee8JeF8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724486299; c=relaxed/simple; bh=+MuJabAXZNXC3PzKmb+ctuTHQcVD5uw07JOm0cukiHM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=GWySvhytFi2+aDwpTVnYgDYPKOCxc+f/qtu6Oi3l3B2485PhAEfytvZyCAfWeqKLOw+XPhgbQs1o5rZxIlVnMYPatwOdtZ/o3bc+GIkwKvuypocesqojWEiKObFJ71IJNVjb+qBS/qUpbhh0qX7rxNNTsslrd0m+QwYaoItzw1I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=H132KVz3; arc=none smtp.client-ip=198.175.65.18 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="H132KVz3" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1724486297; x=1756022297; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=+MuJabAXZNXC3PzKmb+ctuTHQcVD5uw07JOm0cukiHM=; b=H132KVz304XJPf6ReChbID2w1YHRPvxytq0WbDqu4uhidZZSlva4Y4LE pZHl3AGTuAOiweWSGhZDA8IwlbzEoHnXnbMCKukZ/q+5k+rMv9h4gy7Gg lrqNpj8eCrMpC8dgLkyHv94gHXIDAlxwso32cgk3S50h615I0K86g9G+X XmZ+8gxO+63cIdmweFZi0vKY6B783NQbpEeCRiefFnAOryPtfqs9e+VOq tOFi5hsQh2mndrvZc3hgde+agJNmsp977DN6vvWI/rA4Ptt1uBBfTnLlN s4+sWi9vLViQhAOyXzNqIWOYRX9YsZ/Oa0iCAQG3P43fJn22Am1fVQk6v A==; X-CSE-ConnectionGUID: vT64KyRhQaW9P0Xy6FbYoQ== X-CSE-MsgGUID: atC8vKnuQf2trx1B+MFIWg== X-IronPort-AV: E=McAfee;i="6700,10204,11173"; a="23126429" X-IronPort-AV: E=Sophos;i="6.10,172,1719903600"; d="scan'208";a="23126429" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Aug 2024 00:58:17 -0700 X-CSE-ConnectionGUID: xNO1WY6SQfimIDbJMyQklA== X-CSE-MsgGUID: Re7yuOLNQLu2fGkmVM310w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,172,1719903600"; d="scan'208";a="99531438" Received: from turnipsi.fi.intel.com (HELO kekkonen.fi.intel.com) ([10.237.72.44]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Aug 2024 00:58:12 -0700 Received: from kekkonen.localdomain (localhost [127.0.0.1]) by kekkonen.fi.intel.com (Postfix) with SMTP id AF4D411F95D; Sat, 24 Aug 2024 10:58:07 +0300 (EEST) Date: Sat, 24 Aug 2024 07:58:07 +0000 From: Sakari Ailus To: Christoph Hellwig Cc: iommu@lists.linux.dev, Marek Szyprowski , Robin Murphy , Bingbu Cao , "Michael S . Tsirkin " , Jason Wang , linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, linux-media@vger.kernel.org, virtualization@lists.linux.dev, xen-devel@lists.xenproject.org Subject: Re: [PATCH] dma-mapping: clear mark DMA ops as an architecture feature Message-ID: References: <20240824035817.1163502-1-hch@lst.de> <20240824035817.1163502-2-hch@lst.de> Precedence: bulk X-Mailing-List: linux-parisc@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: <20240824035817.1163502-2-hch@lst.de> Hi Christoph, On Sat, Aug 24, 2024 at 05:57:58AM +0200, Christoph Hellwig wrote: > DMA ops are a helper for architectures and not for drivers to override > the DMA implementation. Unfortunately driver authors keep ignoring > this. Make this more clear by renaming the symbol to ARCH_DMA_OPS, > have the three drivers overriding it depend on that. They should > probably also be marked broken, but we can give them a bit of a grace > period for that. > > Signed-off-by: Christoph Hellwig Acked-by: Sakari Ailus # for IPU6 We'll address this for IPU6 but I can't give a timeline for that right now. -- Kind regards, Sakari Ailus