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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 27E79C4332F for ; Thu, 24 Feb 2022 10:17:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233301AbiBXKRf (ORCPT ); Thu, 24 Feb 2022 05:17:35 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37638 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232471AbiBXKRf (ORCPT ); Thu, 24 Feb 2022 05:17:35 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 164E2B91D4; Thu, 24 Feb 2022 02:17:02 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id E30E4ED1; Thu, 24 Feb 2022 02:17:01 -0800 (PST) Received: from [10.163.48.178] (unknown [10.163.48.178]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E609A3F70D; Thu, 24 Feb 2022 02:16:54 -0800 (PST) From: Anshuman Khandual Subject: Re: [PATCH 10/11] swiotlb: merge swiotlb-xen initialization into swiotlb To: Christoph Hellwig , iommu@lists.linux-foundation.org Cc: x86@kernel.org, Stefano Stabellini , Boris Ostrovsky , Juergen Gross , Joerg Roedel , David Woodhouse , Lu Baolu , Robin Murphy , linux-arm-kernel@lists.infradead.org, xen-devel@lists.xenproject.org, linux-ia64@vger.kernel.org, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-hyperv@vger.kernel.org, tboot-devel@lists.sourceforge.net, linux-pci@vger.kernel.org References: <20220222153514.593231-1-hch@lst.de> <20220222153514.593231-11-hch@lst.de> Message-ID: Date: Thu, 24 Feb 2022 15:46:55 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20220222153514.593231-11-hch@lst.de> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-s390@vger.kernel.org On 2/22/22 9:05 PM, Christoph Hellwig wrote: > Allow to pass a remap argument to the swiotlb initialization functions > to handle the Xen/x86 remap case. ARM/ARM64 never did any remapping > from xen_swiotlb_fixup, so we don't even need that quirk. > > Signed-off-by: Christoph Hellwig > --- > arch/arm/xen/mm.c | 23 +++--- > arch/x86/include/asm/xen/page.h | 5 -- > arch/x86/kernel/pci-dma.c | 27 ++++--- > arch/x86/pci/sta2x11-fixup.c | 2 +- > drivers/xen/swiotlb-xen.c | 128 +------------------------------- > include/linux/swiotlb.h | 7 +- > include/xen/arm/page.h | 1 - > include/xen/swiotlb-xen.h | 8 +- > kernel/dma/swiotlb.c | 120 +++++++++++++++--------------- > 9 files changed, 102 insertions(+), 219 deletions(-) checkpatch.pl has some warnings here. ERROR: trailing whitespace #151: FILE: arch/x86/kernel/pci-dma.c:217: + $ WARNING: please, no spaces at the start of a line #151: FILE: arch/x86/kernel/pci-dma.c:217: + $ total: 1 errors, 1 warnings, 470 lines checked