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=-6.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,T_DKIMWL_WL_HIGH autolearn=ham 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 EA282C282CE for ; Tue, 4 Jun 2019 11:35:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 326B624BF6 for ; Tue, 4 Jun 2019 11:35:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="emCZJ7it" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727403AbfFDLfN (ORCPT ); Tue, 4 Jun 2019 07:35:13 -0400 Received: from hqemgate14.nvidia.com ([216.228.121.143]:15548 "EHLO hqemgate14.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727239AbfFDLfM (ORCPT ); Tue, 4 Jun 2019 07:35:12 -0400 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqemgate14.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Tue, 04 Jun 2019 04:35:10 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Tue, 04 Jun 2019 04:35:11 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Tue, 04 Jun 2019 04:35:11 -0700 Received: from DRHQMAIL107.nvidia.com (10.27.9.16) by HQMAIL105.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 4 Jun 2019 11:35:11 +0000 Received: from [10.26.11.158] (172.20.13.39) by DRHQMAIL107.nvidia.com (10.27.9.16) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 4 Jun 2019 11:35:08 +0000 Subject: Re: [PATCH 07/26] iommu/dma: move the arm64 wrappers to common code To: Christoph Hellwig CC: Robin Murphy , Joerg Roedel , Catalin Marinas , Will Deacon , Tom Lendacky , , , , linux-tegra References: <20190422175942.18788-1-hch@lst.de> <20190422175942.18788-8-hch@lst.de> <06b331f0-7df7-a6cd-954c-789f89a0836d@arm.com> <20190604060554.GA14536@lst.de> From: Jon Hunter Message-ID: <5e119919-bbfd-14a4-0258-93e8249d11c4@nvidia.com> Date: Tue, 4 Jun 2019 12:35:05 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <20190604060554.GA14536@lst.de> X-Originating-IP: [172.20.13.39] X-ClientProxiedBy: HQMAIL106.nvidia.com (172.18.146.12) To DRHQMAIL107.nvidia.com (10.27.9.16) Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1559648110; bh=VdqCX9RhIKbSosQO8ZrtJXPmMRZiVMAZh+LN9yQt9Zk=; h=X-PGP-Universal:Subject:To:CC:References:From:Message-ID:Date: User-Agent:MIME-Version:In-Reply-To:X-Originating-IP: X-ClientProxiedBy:Content-Type:Content-Language: Content-Transfer-Encoding; b=emCZJ7it6lQS53IGu3TzNnekDYJaA//l1h7EaXgGok72LlXH4v9jhBAOGQz59yBV4 uYLIm9wA8pSFenLXo9wX7QKjEjv1kcJRtovDerKh6hs3he51kpHfqrKB19qfA8gG2N Y37awIOpATCkodK1yiiLnWKsYxhHzIPMofESI5qT+J2Pu+7R+6uDdYfIRE3tHij3LC wuYTsm1vWBrKeeJ3WgBQkWNLGs1mOxBO/NnkHfhYBVTqVNVhwNh3Eg49AVRVUD9SIR Uzr4wK1ElNJox0xa4xVXPelS4UcglZJJ7ebbiM61sRgdQ84RBEMjJqexYIaLMth4JY Lh71EqBvSMgrw== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/06/2019 07:05, Christoph Hellwig wrote: > On Mon, Jun 03, 2019 at 08:47:57PM +0100, Jon Hunter wrote: >> Since next-20190529 one of our tests for MMC has started failing, where >> the symptom is that the data written to the MMC does not match the >> source. Bisecting this is pointing to this commit. Unfortunately, I am >> not able to cleanly revert this on top of -next, but wanted to report >> this if case you have any ideas. > > Does this fix your problem? > > https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git/commit/?h=generic-dma-ops&id=1b961423158caaae49d3900b7c9c37477bbfa9b3 Yes I can confirm with this patch on today's -next the issue is no longer seen, and reverting this patch on top of today's -next causes the problem to occur again. So yes this fixes my problem. Thanks! Jon -- nvpublic