From patchwork Tue Feb 13 15:20:51 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shameerali Kolothum Thodi X-Patchwork-Id: 10216555 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 EF59460467 for ; Tue, 13 Feb 2018 15:24:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E0B4428E7D for ; Tue, 13 Feb 2018 15:24:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DD4BA28E9D; Tue, 13 Feb 2018 15:24:36 +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 autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 68DDA28E86 for ; Tue, 13 Feb 2018 15:24:36 +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=otQ5O0lhubFX/irSLl85KvG+Hmb9CTm7xbn+58mjq+M=; b=UdYYA3LIzF5aUC aUpc4+ILklDhJvSXUu1diaymzdCzrjaEphzDh3VrNdm30nKOopFosrZegxvZfUwDJR9lOZ38ak3Uw wL5d4h7O4l/6mJlBWICvvHh6JS+3KuLA4doSUrAOnVeOZ5nCYQa23Sq5oXfXaYdujPztjvYqoXvwu DZFIKoVf58rRU2A1RwwC9eSZZXHWbwzaAaRAz6U4tf4GDyrNPyI7iqlFpwIk55+4Mb1dTwfHPY7yo g6Rg/jTOxi1jXhz7H3srcNHnJYaikT2CMpie6KBkC/qS8fzD42DwSDXCoC52xyDqRKqN+OPm4cJca nJBe2hA3dtMCkqB/ZIvA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.89 #1 (Red Hat Linux)) id 1elcRT-0001wA-0j; Tue, 13 Feb 2018 15:24:23 +0000 Received: from [45.249.212.32] (helo=huawei.com) by bombadil.infradead.org with esmtps (Exim 4.89 #1 (Red Hat Linux)) id 1elcPc-0000Fs-GD for linux-arm-kernel@lists.infradead.org; Tue, 13 Feb 2018 15:22:33 +0000 Received: from DGGEMS407-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 72E4D8BBE670B; Tue, 13 Feb 2018 23:22:00 +0800 (CST) Received: from S00345302A-PC.china.huawei.com (10.202.227.237) by DGGEMS407-HUB.china.huawei.com (10.3.19.207) with Microsoft SMTP Server id 14.3.361.1; Tue, 13 Feb 2018 23:21:54 +0800 From: Shameer Kolothum To: , , , Subject: [PATCH v13 2/2] iommu/dma: Add HW MSI(GICv3 ITS) address regions reservation Date: Tue, 13 Feb 2018 15:20:51 +0000 Message-ID: <20180213152051.10296-3-shameerali.kolothum.thodi@huawei.com> X-Mailer: git-send-email 2.12.0.windows.1 In-Reply-To: <20180213152051.10296-1-shameerali.kolothum.thodi@huawei.com> References: <20180213152051.10296-1-shameerali.kolothum.thodi@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.202.227.237] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180213_072228_768186_69AE038B X-CRM114-Status: UNSURE ( 7.28 ) 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: joro@8bytes.org, john.garry@huawei.com, linuxarm@huawei.com, xuwei5@hisilicon.com, linux-acpi@vger.kernel.org, iommu@lists.linux-foundation.org, Shameer Kolothum , guohanjun@huawei.com, linux-arm-kernel@lists.infradead.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 GICv3 ITS region on ACPI based ARM platfiorms which may require HW MSI reservations. Signed-off-by: Shameer Kolothum Reviewed-by: Robin Murphy --- 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 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 @@ EXPORT_SYMBOL(iommu_put_dma_cookie); * * 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;