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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 20BC4C43603 for ; Thu, 19 Dec 2019 12:12:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EE77D24672 for ; Thu, 19 Dec 2019 12:12:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726758AbfLSMMf (ORCPT ); Thu, 19 Dec 2019 07:12:35 -0500 Received: from lhrrgout.huawei.com ([185.176.76.210]:2210 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726704AbfLSMMf (ORCPT ); Thu, 19 Dec 2019 07:12:35 -0500 Received: from LHREML712-CAH.china.huawei.com (unknown [172.18.7.107]) by Forcepoint Email with ESMTP id 709D27273C57EE7CE5D8; Thu, 19 Dec 2019 12:12:33 +0000 (GMT) Received: from lhreml724-chm.china.huawei.com (10.201.108.75) by LHREML712-CAH.china.huawei.com (10.201.108.35) with Microsoft SMTP Server (TLS) id 14.3.408.0; Thu, 19 Dec 2019 12:12:33 +0000 Received: from [127.0.0.1] (10.202.226.46) by lhreml724-chm.china.huawei.com (10.201.108.75) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Thu, 19 Dec 2019 12:12:32 +0000 Subject: Re: [PATCH v4 00/16] iommu: Permit modular builds of ARM SMMU[v3] drivers To: Will Deacon , , CC: , Jean-Philippe Brucker , Jordan Crouse , "Bjorn Helgaas" , Saravana Kannan , "Greg Kroah-Hartman" , "Isaac J. Manjarres" , Robin Murphy , "Lorenzo Pieralisi" , Joerg Roedel , "Ard Biesheuvel" References: <20191219120352.382-1-will@kernel.org> From: John Garry Message-ID: <40ccd748-26bc-df16-76f8-b5ebf11ee520@huawei.com> Date: Thu, 19 Dec 2019 12:12:32 +0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.1.2 MIME-Version: 1.0 In-Reply-To: <20191219120352.382-1-will@kernel.org> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.202.226.46] X-ClientProxiedBy: lhreml712-chm.china.huawei.com (10.201.108.63) To lhreml724-chm.china.huawei.com (10.201.108.75) X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 19/12/2019 12:03, Will Deacon wrote: > Hi all, > > This is version four of the patches I previously posted here: > > v1: https://lore.kernel.org/lkml/20191030145112.19738-1-will@kernel.org/ > v2: https://lore.kernel.org/lkml/20191108151608.20932-1-will@kernel.org > v3: https://lore.kernel.org/lkml/20191121114918.2293-1-will@kernel.org > > Changes since v3 include: > > * Based on v5.5-rc1 > * ACPI/IORT support (thanks to Ard) > * Export pci_{enable,disable}_ats() (thanks to Greg) > * Added review tags Since it looks like not much has changed since v3, and I even tested removal of smmu-v3.ko [0] - this should be ok for the series: Tested-by: John Garry # smmu v3 [0] https://lore.kernel.org/linux-iommu/c8eb97b1-dab5-cc25-7669-2819f64a885d@huawei.com/ > > I tested this on AMD Seattle by loading arm-smmu-mod.ko from the initrd. > > Cheers, > > Will > > Cc: Jean-Philippe Brucker > Cc: Jordan Crouse > Cc: John Garry > Cc: Bjorn Helgaas > Cc: Saravana Kannan > Cc: Greg Kroah-Hartman > Cc: "Isaac J. Manjarres" > Cc: Robin Murphy > Cc: Lorenzo Pieralisi > Cc: Joerg Roedel > Cc: Ard Biesheuvel > > --->8 > > Ard Biesheuvel (1): > iommu/arm-smmu: Support SMMU module probing from the IORT > > Greg Kroah-Hartman (1): > PCI/ATS: Restore EXPORT_SYMBOL_GPL() for pci_{enable,disable}_ats() > > Will Deacon (14): > drivers/iommu: Export core IOMMU API symbols to permit modular drivers > iommu/of: Request ACS from the PCI core when configuring IOMMU linkage > PCI: Export pci_ats_disabled() as a GPL symbol to modules > drivers/iommu: Take a ref to the IOMMU driver prior to ->add_device() > iommu/of: Take a ref to the IOMMU driver during ->of_xlate() > drivers/iommu: Allow IOMMU bus ops to be unregistered > Revert "iommu/arm-smmu: Make arm-smmu-v3 explicitly non-modular" > Revert "iommu/arm-smmu: Make arm-smmu explicitly non-modular" > iommu/arm-smmu: Prevent forced unbinding of Arm SMMU drivers > iommu/arm-smmu-v3: Unregister IOMMU and bus ops on device removal > iommu/arm-smmu-v3: Allow building as a module > iommu/arm-smmu: Unregister IOMMU and bus ops on device removal > iommu/arm-smmu: Allow building as a module > iommu/arm-smmu: Update my email address in MODULE_AUTHOR() > > drivers/acpi/arm64/iort.c | 4 +- > drivers/iommu/Kconfig | 16 ++++- > drivers/iommu/Makefile | 3 +- > drivers/iommu/arm-smmu-v3.c | 94 +++++++++++++++++--------- > drivers/iommu/arm-smmu.c | 128 +++++++++++++++++++++++++----------- > drivers/iommu/iommu-sysfs.c | 5 ++ > drivers/iommu/iommu.c | 32 ++++++++- > drivers/iommu/of_iommu.c | 19 ++++-- > drivers/pci/ats.c | 2 + > drivers/pci/pci.c | 1 + > include/linux/iommu.h | 4 +- > 11 files changed, 223 insertions(+), 85 deletions(-) >