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=-3.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 7F6A5C433DF for ; Sun, 11 Oct 2020 20:36:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1EFFA207FB for ; Sun, 11 Oct 2020 20:36:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="VI1DNBdu" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729391AbgJKUgg (ORCPT ); Sun, 11 Oct 2020 16:36:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42918 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729100AbgJKUgf (ORCPT ); Sun, 11 Oct 2020 16:36:35 -0400 Received: from mail-wr1-x442.google.com (mail-wr1-x442.google.com [IPv6:2a00:1450:4864:20::442]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4E4B8C0613CE for ; Sun, 11 Oct 2020 13:36:35 -0700 (PDT) Received: by mail-wr1-x442.google.com with SMTP id h5so6673570wrv.7 for ; Sun, 11 Oct 2020 13:36:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=w6kPzjUwV48C4wvHgsl3DA4BvdGnWqy7kobVRdbhSlk=; b=VI1DNBdu4z3hXqOd9t56tRc+rIzO69BfQuH7Psg1+9Y43n0uHOCWuNxmn74c5mNxuQ YZQeMowKIMMnemk2nIoltClw8yOOtZ5iOd3H1pGwLA/5AHNV5XIdUHoKTroJMaTwuxjm QqnVP7vzdZjfQJj3742xVRUb+bInYtBfMB66g= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=w6kPzjUwV48C4wvHgsl3DA4BvdGnWqy7kobVRdbhSlk=; b=rhUrWN5WdaRK6sHszYaP2nxXIXvNB9SIPL4V+C8IeqquIsoXlSyGqNAVDegohcNLpM ss9T5oNty0Ph2//4o9lqzVOz8Gi3h1Alx0VqhXf4tglrqfvOIs5yO1lCC8yeb+QrdaON jX4ukEyN0YoqI1mgDLkb7IpjuUBYdcbGeh+SpI7MntDYMmqitajwtOQ7u60KWVEPf6+3 KF8Chk5WjLEts5O84LQw+kldYN9OqPLXoSlXuooLJfC+EiY+5/N0X5qA+yMShxtjxIfX qWoe1O5hwNAp9lAC6fGvMgrOHsgiBypFhA4M7t6/tVvHpF4UPuLDVtVKIEuBqoVhP/IF yQdg== X-Gm-Message-State: AOAM5307x328Si+WUeuMT793tNnTw0QiHtkescg2DC6uDItxjj8TnTH0 uI3V9/X8r/Xt44Sx+c/5El+iMIM1Y0C6GyZg/Zfh9A== X-Google-Smtp-Source: ABdhPJxZP5LWFVb4yeIdexz6d4JDTHAAGiDr46SFA89oBFMpIh9W7HZg4zpkTx6+AWoJ7WMGUmJqpCDMhEMh2dt05nw= X-Received: by 2002:adf:ea4d:: with SMTP id j13mr3714971wrn.345.1602448593669; Sun, 11 Oct 2020 13:36:33 -0700 (PDT) MIME-Version: 1.0 References: <20200924090349.GF27174@8bytes.org> <20200924092546.GJ27174@8bytes.org> <20200924095629.GL27174@8bytes.org> <20201011055258.22337d66@canb.auug.org.au> In-Reply-To: <20201011055258.22337d66@canb.auug.org.au> From: Jim Quinlan Date: Sun, 11 Oct 2020 16:36:22 -0400 Message-ID: Subject: Re: arm-smmu 5000000.iommu: Cannot accommodate DMA offset for IOMMU page tables To: Stephen Rothwell Cc: Naresh Kamboju , Joerg Roedel , Robin Murphy , Poonam Aggrwal , Rob Herring , Joerg Roedel , Arnd Bergmann , Richard Weinberger , open list , lkft-triage@lists.linaro.org, Linux-Next Mailing List , linux-mtd@lists.infradead.org, Miquel Raynal , Suram Suram , masonccyang@mxic.com.tw, Will Deacon , "Z.Q. Hou" , Christoph Hellwig , Florian Fainelli Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="00000000000037e69d05b16b238f" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --00000000000037e69d05b16b238f Content-Type: text/plain; charset="UTF-8" On Sat, Oct 10, 2020 at 2:53 PM Stephen Rothwell wrote: > > Hi Naresh, > > Just adding Christoph and Jim to cc] > > On Fri, 9 Oct 2020 19:26:24 +0530 Naresh Kamboju wrote: > > > > On Fri, 9 Oct 2020 at 19:24, Naresh Kamboju wrote: > > > > > > > > > > > > On Thu, 24 Sep 2020 at 15:26, Joerg Roedel wrote: > > > > > > > > On Thu, Sep 24, 2020 at 10:36:47AM +0100, Robin Murphy wrote: > > > > > Yes, the issue was introduced by one of the changes in "dma-mapping: > > > > > introduce DMA range map, supplanting dma_pfn_offset", so it only existed in > > > > > the dma-mapping/for-next branch anyway. > > > > > > > FYI, > > The reported problem still exists on 5.9.0-rc8-next-20201009. > > > > [ 1.843814] Driver must set ecc.strength when using hardware ECC > > [ 1.849847] WARNING: CPU: 4 PID: 1 at > > drivers/mtd/nand/raw/nand_base.c:5687 nand_scan_with_ids+0x1450/0x1470 > > [ 1.859676] Modules linked in: > > [ 1.862730] CPU: 4 PID: 1 Comm: swapper/0 Not tainted > > 5.9.0-rc8-next-20201009 #1 > > [ 1.870125] Hardware name: Freescale Layerscape 2088A RDB Board (DT) > > [ 1.876478] pstate: 40000005 (nZcv daif -PAN -UAO -TCO BTYPE=--) > > [ 1.882483] pc : nand_scan_with_ids+0x1450/0x1470 > > [ 1.887183] lr : nand_scan_with_ids+0x1450/0x1470 Hi, I'm having a hard time coming up with a theory regarding how a commit concerning DMA offsets can affect the operation of a NAND driver that appears not to use DMA or the dma-ranges property. Does anyone else have some ideas, or is there perhaps someone familiar with this test configuration that I can correspond with to get to the bottom of the warning? Thanks, Jim Quinlan Broadcom STB > > > > full test log, > > https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20201009/testrun/3284876/suite/linux-log-parser/test/check-kernel-warning-92014/log > > > > > > > > > > Okay, alright then. > > > > > > > > - Naresh > > -- > Cheers, > Stephen Rothwell --00000000000037e69d05b16b238f Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIQQwYJKoZIhvcNAQcCoIIQNDCCEDACAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg gg2YMIIE6DCCA9CgAwIBAgIOSBtqCRO9gCTKXSLwFPMwDQYJKoZIhvcNAQELBQAwTDEgMB4GA1UE CxMXR2xvYmFsU2lnbiBSb290IENBIC0gUjMxEzARBgNVBAoTCkdsb2JhbFNpZ24xEzARBgNVBAMT Ckdsb2JhbFNpZ24wHhcNMTYwNjE1MDAwMDAwWhcNMjQwNjE1MDAwMDAwWjBdMQswCQYDVQQGEwJC RTEZMBcGA1UEChMQR2xvYmFsU2lnbiBudi1zYTEzMDEGA1UEAxMqR2xvYmFsU2lnbiBQZXJzb25h 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