From patchwork Tue Apr 14 13:15:25 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joerg Roedel X-Patchwork-Id: 11487743 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 22B41186E for ; Tue, 14 Apr 2020 13:24:07 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 D1828206A2 for ; Tue, 14 Apr 2020 13:24:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="WauTrMp0" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D1828206A2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=8bytes.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=m6+qh4GI0mc3uECPAZZfLLLpHr1/l0Ti+ndOAE+mIaE=; b=WauTrMp001MK/OmQ1gDMxxzU/E VK6EyDQqAPiUKsBylFzAJMBhIZyCGMF04Vrd4YrJChfjcothoxV95j3b979/h57bLbSAbkMEOPqD/ P7axMEd7xQD0x3t9IJmgdB5b3EDTzjtf0Y+DA0/DrrlK4vkWIVcnAMVGLohe3B4FK0kZgMjGGxfq0 4uHWccwC18lGWmUljqR6OUlAM8C+0bYh0eWsX8IAkw1ZDLrkOHBCIzhfX+K4xeoV+vEitYqD0CULT hEwncOnU8O7e/BNO6/1ig/K6dryofvEkEbqoz6BHmUmiriNmBc5qb6YEWGKvGtPvt9p3Bko1eznPT i/gI4FPg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jOLXo-0004aR-8a; Tue, 14 Apr 2020 13:24:04 +0000 Received: from 8bytes.org ([81.169.241.247] helo=theia.8bytes.org) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jOLQ9-0002bh-02; Tue, 14 Apr 2020 13:16:18 +0000 Received: by theia.8bytes.org (Postfix, from userid 1000) id 74494642; Tue, 14 Apr 2020 15:15:54 +0200 (CEST) From: Joerg Roedel To: Joerg Roedel , Will Deacon , Robin Murphy , Marek Szyprowski , Kukjin Kim , Krzysztof Kozlowski , David Woodhouse , Lu Baolu , Andy Gross , Bjorn Andersson , Matthias Brugger , Rob Clark , Heiko Stuebner , Gerald Schaefer , Thierry Reding , Jonathan Hunter , Jean-Philippe Brucker Subject: [PATCH v2 16/33] iommu/vt-d: Convert to probe/release_device() call-backs Date: Tue, 14 Apr 2020 15:15:25 +0200 Message-Id: <20200414131542.25608-17-joro@8bytes.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200414131542.25608-1-joro@8bytes.org> References: <20200414131542.25608-1-joro@8bytes.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200414_061609_198489_A1C42E84 X-CRM114-Status: GOOD ( 13.56 ) X-Spam-Score: -0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [81.169.241.247 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-s390@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, linux-rockchip@lists.infradead.org, iommu@lists.linux-foundation.org, Joerg Roedel , linux-mediatek@lists.infradead.org, linux-tegra@vger.kernel.org MIME-Version: 1.0 Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org From: Joerg Roedel Convert the Intel IOMMU driver to use the probe_device() and release_device() call-backs of iommu_ops, so that the iommu core code does the group and sysfs setup. Signed-off-by: Joerg Roedel --- drivers/iommu/intel-iommu.c | 67 ++++--------------------------------- 1 file changed, 6 insertions(+), 61 deletions(-) diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index b9f905a55dda..b906727f5b85 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -5781,78 +5781,27 @@ static bool intel_iommu_capable(enum iommu_cap cap) return false; } -static int intel_iommu_add_device(struct device *dev) +static struct iommu_device *intel_iommu_probe_device(struct device *dev) { - struct dmar_domain *dmar_domain; - struct iommu_domain *domain; struct intel_iommu *iommu; - struct iommu_group *group; u8 bus, devfn; - int ret; iommu = device_to_iommu(dev, &bus, &devfn); if (!iommu) - return -ENODEV; - - iommu_device_link(&iommu->iommu, dev); + return ERR_PTR(-ENODEV); if (translation_pre_enabled(iommu)) dev->archdata.iommu = DEFER_DEVICE_DOMAIN_INFO; - group = iommu_group_get_for_dev(dev); - - if (IS_ERR(group)) { - ret = PTR_ERR(group); - goto unlink; - } - - iommu_group_put(group); - - domain = iommu_get_domain_for_dev(dev); - dmar_domain = to_dmar_domain(domain); - if (domain->type == IOMMU_DOMAIN_DMA) { - if (device_def_domain_type(dev) == IOMMU_DOMAIN_IDENTITY) { - ret = iommu_request_dm_for_dev(dev); - if (ret) { - dmar_remove_one_dev_info(dev); - dmar_domain->flags |= DOMAIN_FLAG_LOSE_CHILDREN; - domain_add_dev_info(si_domain, dev); - dev_info(dev, - "Device uses a private identity domain.\n"); - } - } - } else { - if (device_def_domain_type(dev) == IOMMU_DOMAIN_DMA) { - ret = iommu_request_dma_domain_for_dev(dev); - if (ret) { - dmar_remove_one_dev_info(dev); - dmar_domain->flags |= DOMAIN_FLAG_LOSE_CHILDREN; - if (!get_private_domain_for_dev(dev)) { - dev_warn(dev, - "Failed to get a private domain.\n"); - ret = -ENOMEM; - goto unlink; - } - - dev_info(dev, - "Device uses a private dma domain.\n"); - } - } - } - if (device_needs_bounce(dev)) { dev_info(dev, "Use Intel IOMMU bounce page dma_ops\n"); set_dma_ops(dev, &bounce_dma_ops); } - return 0; - -unlink: - iommu_device_unlink(&iommu->iommu, dev); - return ret; + return &iommu->iommu; } -static void intel_iommu_remove_device(struct device *dev) +static void intel_iommu_release_device(struct device *dev) { struct intel_iommu *iommu; u8 bus, devfn; @@ -5863,10 +5812,6 @@ static void intel_iommu_remove_device(struct device *dev) dmar_remove_one_dev_info(dev); - iommu_group_remove_device(dev); - - iommu_device_unlink(&iommu->iommu, dev); - if (device_needs_bounce(dev)) set_dma_ops(dev, NULL); } @@ -6198,8 +6143,8 @@ const struct iommu_ops intel_iommu_ops = { .map = intel_iommu_map, .unmap = intel_iommu_unmap, .iova_to_phys = intel_iommu_iova_to_phys, - .add_device = intel_iommu_add_device, - .remove_device = intel_iommu_remove_device, + .probe_device = intel_iommu_probe_device, + .release_device = intel_iommu_release_device, .get_resv_regions = intel_iommu_get_resv_regions, .put_resv_regions = generic_iommu_put_resv_regions, .apply_resv_region = intel_iommu_apply_resv_region,