From patchwork Tue Jul 25 11:17:32 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: 9861789 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id BC568601A1 for ; Tue, 25 Jul 2017 11:21:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id ADE0D28066 for ; Tue, 25 Jul 2017 11:21:08 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A289A28503; Tue, 25 Jul 2017 11:21:08 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 6B1A7285DB for ; Tue, 25 Jul 2017 11:21:07 +0000 (UTC) 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:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version: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=eKZhmWaS1JuJGvYcgdCjC/EB/jSYAnF/dn5lLlnPBoM=; b=d92GQQSG11uLtT TiDl33lxPG7K+cMIgL9Gjh9RcZzOGZZBZ6/9RsdTOtrCm/w/oHc+t+1zYOHNtbPYbMSpv7ZxK6NLu YEzbUZYWfu89J8psE580NIbbrvhDVxGO67dht2XiaNexVlcNKicjKqZ5YW+sjNlBK/W6+JMWIYdIH 09OIRKU2Q87YTpuGhJwpvXty0kung2xdjuK9oEbHmEsxg3sQcbfAJ96doWooJvETa/HHn65nEIFIP sRo0PBzYJFJDo8spLwCtg5Qj1jENlPFvxOho8iE+QMStVsB9xAVkG7prZnQwHyoP5tmERGStI3OEH Zt7Eem39fQ6npZJ8dH+Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dZxtg-0000z7-QL; Tue, 25 Jul 2017 11:21:04 +0000 Received: from szxga03-in.huawei.com ([45.249.212.189]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dZxsp-0007ae-8v for linux-arm-kernel@lists.infradead.org; Tue, 25 Jul 2017 11:20:14 +0000 Received: from 172.30.72.57 (EHLO dggeml406-hub.china.huawei.com) ([172.30.72.57]) by dggrg03-dlp.huawei.com (MOS 4.4.6-GA FastPath queued) with ESMTP id ARZ13630; Tue, 25 Jul 2017 19:19:42 +0800 (CST) Received: from S00345302A-PC.china.huawei.com (10.203.177.212) by dggeml406-hub.china.huawei.com (10.3.17.50) with Microsoft SMTP Server id 14.3.301.0; Tue, 25 Jul 2017 19:19:35 +0800 From: Shameer Kolothum To: , , , , , Subject: [PATCH v4 2/2] iommu/dma: Add HW MSI address regions reservation for IOMMU drivers Date: Tue, 25 Jul 2017 12:17:32 +0100 Message-ID: <20170725111732.41792-3-shameerali.kolothum.thodi@huawei.com> X-Mailer: git-send-email 2.12.0.windows.1 In-Reply-To: <20170725111732.41792-1-shameerali.kolothum.thodi@huawei.com> References: <20170725111732.41792-1-shameerali.kolothum.thodi@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.203.177.212] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A0B0207.5977294F.0032, 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: 61d326fb0f2c7f44d710b46e421f90d2 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170725_042012_227447_E3075D4A X-CRM114-Status: UNSURE ( 9.31 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: gabriele.paoloni@huawei.com, john.garry@huawei.com, linuxarm@huawei.com, Shameer Kolothum , linux-acpi@vger.kernel.org, iommu@lists.linux-foundation.org, wangzhou1@hisilicon.com, guohanjun@huawei.com, linux-arm-kernel@lists.infradead.org, devel@acpica.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Modified iommu_dma_get_resv_regions() to include HW MSI (ARM GICv3 ITS MSI) specific reservations if available. Suggested-by: Robin Murphy Signed-off-by: Shameer Kolothum --- drivers/iommu/dma-iommu.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c index 9d1cebe..3b6fde7 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 HW MSI(ARM GICv3 ITS MSI) region + * reservations if avialable. */ 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_its_get_resv_regions(dev, list) < 0) + return; + if (!dev_is_pci(dev)) return;