From patchwork Mon Aug 6 12:27:00 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Leizhen (ThunderTown)" X-Patchwork-Id: 10557007 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6E826157B for ; Mon, 6 Aug 2018 12:28:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5C0FF29355 for ; Mon, 6 Aug 2018 12:28:37 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4FEA129363; Mon, 6 Aug 2018 12:28:37 +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=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI 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 EC09429355 for ; Mon, 6 Aug 2018 12:28:36 +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=eD1c4+ftDEIYE3f2eNDTEwi0sVcEAbW6OfXvUWSKVYs=; b=XlyfY+zt6JAzRH Vi58kUh1XJPPPDxW+ERyTpOdrLC0Mm1nAfV5X/F+fR9AuAIC70r2MCWn/ElvJWkwVVTGR6mdIsF/3 IqaBKMT7GA5zv/n46MJgK2UTVtkY1ZcZEXWAQ3I3QS3yEFdMZpixZ2sCnZqGcFOIO41Vjhxqet0Og PK4q0jONgeQUUHUQSCoeO22AP9rxuAt4U0vfnV/fD3f+o323XOWPZsv5zNyJNTlP7d/anvqHCADV4 iUmiPdxN6w9myNH4hlFEu4tPNCHZU0BCx2Mjm1MVoZUQYAd++2HGq82SwZs/pDhFIK4UomljdOKvz ximakmvKOU7BF5SbSS0g==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fmech-0005UM-PG; Mon, 06 Aug 2018 12:28:31 +0000 Received: from szxga07-in.huawei.com ([45.249.212.35] helo=huawei.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fmecH-0004sS-JC for linux-arm-kernel@lists.infradead.org; Mon, 06 Aug 2018 12:28:11 +0000 Received: from DGGEMS407-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 022D2D080B7C8; Mon, 6 Aug 2018 20:27:46 +0800 (CST) Received: from localhost (10.177.23.164) by DGGEMS407-HUB.china.huawei.com (10.3.19.207) with Microsoft SMTP Server id 14.3.399.0; Mon, 6 Aug 2018 20:27:38 +0800 From: Zhen Lei To: Robin Murphy , Will Deacon , Joerg Roedel , linux-arm-kernel , iommu , linux-kernel Subject: [PATCH v4 1/5] iommu/arm-smmu-v3: fix the implementation of flush_iotlb_all hook Date: Mon, 6 Aug 2018 20:27:00 +0800 Message-ID: <1533558424-16748-2-git-send-email-thunder.leizhen@huawei.com> X-Mailer: git-send-email 1.9.5.msysgit.0 In-Reply-To: <1533558424-16748-1-git-send-email-thunder.leizhen@huawei.com> References: <1533558424-16748-1-git-send-email-thunder.leizhen@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.177.23.164] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180806_052805_923003_308C991B X-CRM114-Status: GOOD ( 11.27 ) 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: Hanjun Guo , LinuxArm , Libin , Zhen Lei 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 .flush_iotlb_all can not just wait for previous tlbi operations to be completed, but should also invalid all TLBs of the related domain. Signed-off-by: Zhen Lei Reviewed-by: Robin Murphy --- drivers/iommu/arm-smmu-v3.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) -- 1.8.3 diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index 4810f61..2f1304b 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -1770,6 +1770,14 @@ static int arm_smmu_map(struct iommu_domain *domain, unsigned long iova, return ops->unmap(ops, iova, size); } +static void arm_smmu_flush_iotlb_all(struct iommu_domain *domain) +{ + struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain); + + if (smmu_domain->smmu) + arm_smmu_tlb_inv_context(smmu_domain); +} + static void arm_smmu_iotlb_sync(struct iommu_domain *domain) { struct arm_smmu_device *smmu = to_smmu_domain(domain)->smmu; @@ -1998,7 +2006,7 @@ static void arm_smmu_put_resv_regions(struct device *dev, .map = arm_smmu_map, .unmap = arm_smmu_unmap, .map_sg = default_iommu_map_sg, - .flush_iotlb_all = arm_smmu_iotlb_sync, + .flush_iotlb_all = arm_smmu_flush_iotlb_all, .iotlb_sync = arm_smmu_iotlb_sync, .iova_to_phys = arm_smmu_iova_to_phys, .add_device = arm_smmu_add_device,