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=-0.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS 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 2894BC004C9 for ; Tue, 7 May 2019 07:14:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DDED12087F for ; Tue, 7 May 2019 07:14:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=renesasgroup.onmicrosoft.com header.i=@renesasgroup.onmicrosoft.com header.b="VhRASuAf" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726720AbfEGHOD (ORCPT ); Tue, 7 May 2019 03:14:03 -0400 Received: from mail-eopbgr1400111.outbound.protection.outlook.com ([40.107.140.111]:21568 "EHLO JPN01-TY1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726297AbfEGHOD (ORCPT ); Tue, 7 May 2019 03:14:03 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=renesasgroup.onmicrosoft.com; s=selector1-renesas-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=8y0B6I+EcaWgsjf0X1gTJNDIF3DhSHmm7JF6PMubLSg=; b=VhRASuAfnOdBDRSUl9e067+P+YXGYruE1LiVvbrmKtWqNG46rAafA74Cu6e2nUvIJWQ/kvm9OC5E+EryZgLnJv6p206UtUOwCee32bKt/BozBYHexF2FrhtOgg6NHwHV6SR5jUjD6xJ47o+3WMfGVhrKXhCPFTRi059IYsWWBbY= Received: from OSBPR01MB3174.jpnprd01.prod.outlook.com (20.176.240.146) by OSBPR01MB2839.jpnprd01.prod.outlook.com (52.134.254.15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1856.11; Tue, 7 May 2019 07:13:59 +0000 Received: from OSBPR01MB3174.jpnprd01.prod.outlook.com ([fe80::4d29:3383:d67d:d562]) by OSBPR01MB3174.jpnprd01.prod.outlook.com ([fe80::4d29:3383:d67d:d562%3]) with mapi id 15.20.1856.012; Tue, 7 May 2019 07:13:59 +0000 From: Yoshihiro Shimoda To: Wolfram Sang , Sergei Shtylyov CC: "ulf.hansson@linaro.org" , "wsa+renesas@sang-engineering.com" , "linux-mmc@vger.kernel.org" , "linux-renesas-soc@vger.kernel.org" Subject: RE: [PATCH 2/3] mmc: tmio: No memory size limitation if runs on IOMMU Thread-Topic: [PATCH 2/3] mmc: tmio: No memory size limitation if runs on IOMMU Thread-Index: AQHU+/Ajsc2lg6egpUGhyifMMTlpw6ZOFvCAgAAS74CAESUYsA== Date: Tue, 7 May 2019 07:13:59 +0000 Message-ID: References: <1556255930-18188-1-git-send-email-yoshihiro.shimoda.uh@renesas.com> <1556255930-18188-3-git-send-email-yoshihiro.shimoda.uh@renesas.com> <39b57554-db27-6b8a-261d-b8097c239e38@cogentembedded.com> <20190426091731.GB1031@kunai> In-Reply-To: <20190426091731.GB1031@kunai> Accept-Language: ja-JP, en-US Content-Language: ja-JP X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=yoshihiro.shimoda.uh@renesas.com; x-originating-ip: [118.238.235.108] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: fdc77f41-1661-425d-2935-08d6d2bb93c2 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600141)(711020)(4605104)(4618075)(2017052603328)(7193020);SRVR:OSBPR01MB2839; x-ms-traffictypediagnostic: OSBPR01MB2839: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:8273; x-forefront-prvs: 0030839EEE x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(346002)(366004)(376002)(39860400002)(136003)(396003)(199004)(189003)(6506007)(14454004)(305945005)(102836004)(6436002)(6116002)(11346002)(446003)(6246003)(8936002)(4326008)(74316002)(8676002)(68736007)(3846002)(81156014)(81166006)(7696005)(99286004)(25786009)(186003)(256004)(26005)(2906002)(86362001)(7736002)(229853002)(52536014)(71200400001)(76176011)(55016002)(71190400001)(476003)(9686003)(53936002)(486006)(316002)(33656002)(73956011)(66446008)(76116006)(66946007)(110136005)(54906003)(64756008)(66476007)(66066001)(5660300002)(66556008)(478600001)(4744005);DIR:OUT;SFP:1102;SCL:1;SRVR:OSBPR01MB2839;H:OSBPR01MB3174.jpnprd01.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; received-spf: None (protection.outlook.com: renesas.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: xJ0+9LMGqEOmpVWfKRrK5yaVWG3fl2NUInfPJMPF9rHWG3+5Z6inujUfw6Z8vQy9BtXFJ3Myv0/pidy+9Oe6G+EyZKSchRw5kRP+kQ0ITwfI2pH62DdRXYs3B2cr9DRC3fD+Ukrta99rcc2FS4/+zydUUC1SDC129QuCeqBzmpIS36VuefsMOc88SiM37DsS9RYa4Iz4E/SO/LNcNDyc/eD39ljyabmOxQjSCuXmQgcc4W8XY3kAr5bk6oyEq9RoUPEHz3wWhBQM8CdcQOEuW64dkMjH+HfW2nRugMOuWeu5yXNB8h6raQhjgOA6r+oZoRywssOU76usOMpvseR78Bqic91EN/HCKfXrNdMLuUkr6Qqylwh15IimMwrDIhwJaLqyCf9mCm37yYq4xKjCKHL87rWGm4Co6s6gPeftK6Q= Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: renesas.com X-MS-Exchange-CrossTenant-Network-Message-Id: fdc77f41-1661-425d-2935-08d6d2bb93c2 X-MS-Exchange-CrossTenant-originalarrivaltime: 07 May 2019 07:13:59.7024 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 53d82571-da19-47e4-9cb4-625a166a4a2a X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: OSBPR01MB2839 Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Hi Sergei-san, Wolfram-san, Thank you for your review and sorry for the delayed response... > From: Wolfram Sang, Sent: Friday, April 26, 2019 6:18 PM >=20 > > > This patch adds a condition to avoid memory size limitaion of > > > > Limitation. >=20 > "limitation" :) And maybe "a memory size limitation"? I think so. I'll fix it on v2 patch. > > > + * the max_req_size if needed as a workaround. However, if the driv= er > > > + * runs on IOMMU, this workaround doesn't need. > > > > Isn't needed, maybe? >=20 > Ack, "isn't needed". I'll fix it. > Patch itself looks good to me. Thank you for your comment! Best regards, Yoshihiro Shimoda