Received: by 2002:a25:8b91:0:0:0:0:0 with SMTP id j17csp8066250ybl; Thu, 16 Jan 2020 10:03:34 -0800 (PST) X-Google-Smtp-Source: APXvYqw0hAwNAp6eKz+1fCR2ku+Oj51VN8NUrY6K+EK+g16qA9hqivSSiJ7frGAHNBnde111cXea X-Received: by 2002:a9d:7b50:: with SMTP id f16mr3121052oto.18.1579197814057; Thu, 16 Jan 2020 10:03:34 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1579197814; cv=none; d=google.com; s=arc-20160816; b=rPhwEki9zRLPXi5VsqpQg75VrNanBMXAuPdMY3Vh8zhWcwwoMdkZ8jGexul39VKyZE YDj1iIDrBVdQMyTpI20PpF1fK9Uk3OlOvptvgim5eaYMQGnylIqL7kHKIaMu1NHM4UGc dJ4CPYpbpXWOqQKX1Ccvl4+Xwonif+2OI88xT3ZO4HjDlsOslvl6M+trdHFRhjMgzxqv KluhBFzCWoRKAOSM8BVEFR6Pxygg7wHM/RTomp9lHBOGmWcCA7uuSvUs4PIXI4+5yOve CnSa0on0z09gnrOPJ7NIOpH+x5W2JsrC+HAr32NtKQAk/26YjNnufPhirrkV3+uPH8R1 okMg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=nGMvwChA987lu0t1kfQa/RhSyMX9+eJm0cSBku9aMH8=; b=PO+hwTeGykqMlY0Bw+zeONyX+fmhi/9LLk6T7wvCOf5yHGyNh8bvlEmfYtP0rrI6jg kjyZ1aNr7BEjH4Lhrc3Qvpa/LDAmaOTn0nYiRVjRpz72F7ra74kxMGz7mzH2dxKh49W+ zijJHoGpJPJZDAN87KqsLjYwLR9xvJmXoYOy+EU4nG1gzbpF4tmODvzy946XhwJga+xO q4S+D+ClwduYysPWwyUrWXvl4URzyLoBF4/BGo0+cV0H0nUdM9jtq3ooHWwk8+TUHs10 eAB6OQ9enTO+vYBgLXDBVdLxpIb2UjaZpQwmfvBA4Pua9jLRi/3j33/DfDuKbIpT7zrF eZTg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=nnONuHuR; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id d20si11745929oic.40.2020.01.16.10.03.21; Thu, 16 Jan 2020 10:03:34 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=nnONuHuR; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2393788AbgAPRlZ (ORCPT + 99 others); Thu, 16 Jan 2020 12:41:25 -0500 Received: from mail.kernel.org ([198.145.29.99]:57856 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2393643AbgAPRkh (ORCPT ); Thu, 16 Jan 2020 12:40:37 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id AAAC82473C; Thu, 16 Jan 2020 17:40:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579196437; bh=qljT4y/A3k246iseBZPFaMQAh1Y9qLsRf7BctsBuqKE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nnONuHuR5IWr8X/cMTSdSQ7hwMzAz8jzuVRrMfXV5oy2s8+7iFqQY1TlODQ4oxFpV NXQoaE/Pjgmka0xermbvndzgvZOioNNO0kA1O5MwnS78LYLL+DnZemgMaGyPIJK8/H 9STpOFE/wRD2CNyrOqwyv4Lr7Tz74rK0qf+Lm4NU= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Filippo Sironi , Joerg Roedel , Sasha Levin , iommu@lists.linux-foundation.org Subject: [PATCH AUTOSEL 4.9 202/251] iommu/amd: Wait for completion of IOTLB flush in attach_device Date: Thu, 16 Jan 2020 12:35:51 -0500 Message-Id: <20200116173641.22137-162-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200116173641.22137-1-sashal@kernel.org> References: <20200116173641.22137-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Filippo Sironi [ Upstream commit 0b15e02f0cc4fb34a9160de7ba6db3a4013dc1b7 ] To make sure the domain tlb flush completes before the function returns, explicitly wait for its completion. Signed-off-by: Filippo Sironi Fixes: 42a49f965a8d ("amd-iommu: flush domain tlb when attaching a new device") [joro: Added commit message and fixes tag] Signed-off-by: Joerg Roedel Signed-off-by: Sasha Levin --- drivers/iommu/amd_iommu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index c898c70472bb..bb0448c91f67 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2113,6 +2113,8 @@ static int attach_device(struct device *dev, */ domain_flush_tlb_pde(domain); + domain_flush_complete(domain); + return ret; } -- 2.20.1