From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1D7DFC35240 for ; Tue, 28 Jan 2020 14:35:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DD01B2468D for ; Tue, 28 Jan 2020 14:35:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580222119; bh=jYUgY8SpWe77pPCfGwFT/2abOKo2SKlAk05poolCS2Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=D0JcFyPHFvgd2I111y+z+RTExE95vQBUluf3nbJ+MT8PIVX6HWJAgTvp/avhmvrtx qLLm87Tx4EgYvnNfPitbf2Da+GduWM2NovRn2Ue+92NFfg3jwLflxI2W89j8dmxUhz wQ919Y4/fr3JX039CBI4TzkaaQ8eqvBEVgNH/phg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731136AbgA1OXC (ORCPT ); Tue, 28 Jan 2020 09:23:02 -0500 Received: from mail.kernel.org ([198.145.29.99]:49036 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731893AbgA1OXB (ORCPT ); Tue, 28 Jan 2020 09:23:01 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 374E024681; Tue, 28 Jan 2020 14:23:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580221380; bh=jYUgY8SpWe77pPCfGwFT/2abOKo2SKlAk05poolCS2Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0MwtFERLrFmKOqlR4/L2C+98FzU41SsY7RYKFZL73zeLbI6OF8F/tRFhs04mF/xmd 5WhTTerfSSnzbw045ks3YwOXkUYG5clCjLr/1PpZW454El5Wnklf6XheIPcwhmyem8 CMGfMYsBG8RduS11x2XY6lsDGnmcek5yRjeMoByU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Filippo Sironi , Joerg Roedel , Sasha Levin Subject: [PATCH 4.9 202/271] iommu/amd: Wait for completion of IOTLB flush in attach_device Date: Tue, 28 Jan 2020 15:05:51 +0100 Message-Id: <20200128135907.604031189@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200128135852.449088278@linuxfoundation.org> References: <20200128135852.449088278@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@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 c898c70472bb2..bb0448c91f672 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2113,6 +2113,8 @@ skip_ats_check: */ domain_flush_tlb_pde(domain); + domain_flush_complete(domain); + return ret; } -- 2.20.1