From patchwork Wed Nov 29 14:14:48 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shameerali Kolothum Thodi X-Patchwork-Id: 120015 Delivered-To: patch@linaro.org Received: by 10.140.22.227 with SMTP id 90csp3115095qgn; Wed, 29 Nov 2017 06:19:42 -0800 (PST) X-Google-Smtp-Source: AGs4zMZD+97eJ9LlV83ZH3/DTqkH3K3cVlgCFM4TAyakvaMy+joc8uy0S/qLLfkFzj9IZZGflS4A X-Received: by 10.84.174.1 with SMTP id q1mr3155305plb.220.1511965182321; Wed, 29 Nov 2017 06:19:42 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1511965182; cv=none; d=google.com; s=arc-20160816; b=Arg7L0pTiRHTloYI/MlQODi8tA368e76OR6kclYOGtUyhmDzxg9nsZVXeMsi8B9bZk BzbyhVklA2lqlN0Awcead+Yv7dPg4BEhsf9/mscY5jhnlJwhZ1GAeArdHY4RWkxi0WMw dZNZrWe4rKXMbhVYLYuQRdxcMNUX5/sCtVBUfJ+ZfBZ3SMQm9tufQbJq00eRZd+wVpXq Qm0fTDOC8DmK7mDyTbOPam2JvS2qHBtheHiOt6NfcFsDhu0FR9o3oast7ra5CA+E640D wGs9qJL80OUywwyeekr2wQ/LtofgfVzMe29S1f38HsCfDohUScukgRLBrJ1oYANVtO/4 Ur2Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:arc-authentication-results; bh=WKXD5dJwyt7AgDbSkfo/DBIWif7kGibgp/bLlLb+2fQ=; b=gGTfMeijDcYvGTSPY5wDp3N3TJSTknPm+HGWuMyfvUkPF4dTNwvOX2pn0yXeCG8DRf FJbixmhatS2j5UwmNlvmgmADiNOnfpi+mETDnvze0ISXvBUKw0xph9EQd7KP1BhDOeMS vjCb5+AnuMC39z2wz6Tf7BOASLK5CASP2yVgsbSxWjPIr5bl56MMw0sY2H1iPwpvk4/U /ra2pXFOYdktGkM0nD/AaO+agdC6m1VXbV3G5IIkiQDMVD844eKz1jnAXcHUfhawiRtp VdMxnXJPW0k9YPP3IIZOoepQSDbeQr685w2lQ2hAiSZQpZwVh0LWtYEZ0+EcZbU1PE0A cEjw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-acpi-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-acpi-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id i3si1321734pgc.833.2017.11.29.06.19.42; Wed, 29 Nov 2017 06:19:42 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-acpi-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-acpi-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-acpi-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752344AbdK2OTk (ORCPT + 7 others); Wed, 29 Nov 2017 09:19:40 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:11474 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753759AbdK2ORb (ORCPT ); Wed, 29 Nov 2017 09:17:31 -0500 Received: from 172.30.72.60 (EHLO DGGEMS411-HUB.china.huawei.com) ([172.30.72.60]) by dggrg05-dlp.huawei.com (MOS 4.4.6-GA FastPath queued) with ESMTP id DLR92804; Wed, 29 Nov 2017 22:16:39 +0800 (CST) Received: from S00345302A-PC.china.huawei.com (10.202.227.237) by DGGEMS411-HUB.china.huawei.com (10.3.19.211) with Microsoft SMTP Server id 14.3.361.1; Wed, 29 Nov 2017 22:16:32 +0800 From: Shameer Kolothum To: , , , , CC: , , , , , , , , Shameer Kolothum Subject: [PATCH v10 2/3] iommu/dma: Add HW MSI(GICv3 ITS) address regions reservation Date: Wed, 29 Nov 2017 14:14:48 +0000 Message-ID: <20171129141449.120316-3-shameerali.kolothum.thodi@huawei.com> X-Mailer: git-send-email 2.12.0.windows.1 In-Reply-To: <20171129141449.120316-1-shameerali.kolothum.thodi@huawei.com> References: <20171129141449.120316-1-shameerali.kolothum.thodi@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.202.227.237] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090204.5A1EC148.0083, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2014-11-16 11:51:01, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 511c57110f51f5fa2ef97a3f28a66b1f Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Modified iommu_dma_get_resv_regions() to include GICv3 ITS region on ACPI based ARM platfiorms which may require HW MSI reservations. Signed-off-by: Shameer Kolothum --- drivers/iommu/dma-iommu.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Reviewed-by: Robin Murphy diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c index 25914d3..f05f3cf 100644 --- a/drivers/iommu/dma-iommu.c +++ b/drivers/iommu/dma-iommu.c @@ -19,6 +19,7 @@ * along with this program. If not, see . */ +#include #include #include #include @@ -167,13 +168,18 @@ void iommu_put_dma_cookie(struct iommu_domain *domain) * * IOMMU drivers can use this to implement their .get_resv_regions callback * for general non-IOMMU-specific reservations. Currently, this covers host - * bridge windows for PCI devices. + * bridge windows for PCI devices and GICv3 ITS region reservation on ACPI + * based ARM platforms that may require HW MSI reservation. */ void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list) { struct pci_host_bridge *bridge; struct resource_entry *window; + if (!is_of_node(dev->iommu_fwspec->iommu_fwnode) && + iort_iommu_msi_get_resv_regions(dev, list) < 0) + return; + if (!dev_is_pci(dev)) return;