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=-11.5 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,NICE_REPLY_A, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 7E36BC433E5 for ; Mon, 13 Jul 2020 14:02:36 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4E2AB206F4 for ; Mon, 13 Jul 2020 14:02:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4E2AB206F4 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id 105FE88EC1; Mon, 13 Jul 2020 14:02:36 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from whitealder.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ZfOTa4PHJkws; Mon, 13 Jul 2020 14:02:35 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by whitealder.osuosl.org (Postfix) with ESMTP id 59AA488EB1; Mon, 13 Jul 2020 14:02:35 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 3E921C0888; Mon, 13 Jul 2020 14:02:35 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by lists.linuxfoundation.org (Postfix) with ESMTP id E7263C0733 for ; Mon, 13 Jul 2020 14:02:33 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id D617886F7D for ; Mon, 13 Jul 2020 14:02:33 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 0MsI8plK8M7J for ; Mon, 13 Jul 2020 14:02:32 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by fraxinus.osuosl.org (Postfix) with ESMTP id BD0ED86FE2 for ; Mon, 13 Jul 2020 14:02:32 +0000 (UTC) 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 DE97530E; Mon, 13 Jul 2020 07:02:31 -0700 (PDT) Received: from [10.57.62.178] (unknown [10.57.62.178]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 08FA73F7BB; Mon, 13 Jul 2020 07:02:28 -0700 (PDT) Subject: Re: [PATCH v10 2/5] iommu/arm-smmu: ioremap smmu mmio region before implementation init To: Krishna Reddy , joro@8bytes.org, will@kernel.org, robh+dt@kernel.org, treding@nvidia.com, jonathanh@nvidia.com References: <20200708050017.31563-1-vdumpa@nvidia.com> <20200708050017.31563-3-vdumpa@nvidia.com> From: Robin Murphy Message-ID: <49c222ce-e889-937a-6f05-eb1b46739306@arm.com> Date: Mon, 13 Jul 2020 15:02:28 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20200708050017.31563-3-vdumpa@nvidia.com> Content-Language: en-GB Cc: snikam@nvidia.com, devicetree@vger.kernel.org, mperttunen@nvidia.com, bhuntsman@nvidia.com, yhsu@nvidia.com, linux-kernel@vger.kernel.org, talho@nvidia.com, iommu@lists.linux-foundation.org, nicolinc@nvidia.com, linux-tegra@vger.kernel.org, praithatha@nvidia.com, linux-arm-kernel@lists.infradead.org, bbiswas@nvidia.com X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On 2020-07-08 06:00, Krishna Reddy wrote: > ioremap smmu mmio region before calling into implementation init. > This is necessary to allow mapped address available during vendor > specific implementation init. Reviewed-by: Robin Murphy > Signed-off-by: Krishna Reddy > --- > drivers/iommu/arm-smmu.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > > diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c > index d2054178df35..e03e873d3bca 100644 > --- a/drivers/iommu/arm-smmu.c > +++ b/drivers/iommu/arm-smmu.c > @@ -2120,10 +2120,6 @@ static int arm_smmu_device_probe(struct platform_device *pdev) > if (err) > return err; > > - smmu = arm_smmu_impl_init(smmu); > - if (IS_ERR(smmu)) > - return PTR_ERR(smmu); > - > res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > ioaddr = res->start; > smmu->base = devm_ioremap_resource(dev, res); > @@ -2135,6 +2131,10 @@ static int arm_smmu_device_probe(struct platform_device *pdev) > */ > smmu->numpage = resource_size(res); > > + smmu = arm_smmu_impl_init(smmu); > + if (IS_ERR(smmu)) > + return PTR_ERR(smmu); > + > num_irqs = 0; > while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, num_irqs))) { > num_irqs++; > _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu