From patchwork Thu Aug 23 10:05:49 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jisheng Zhang X-Patchwork-Id: 10573681 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 242B01390 for ; Thu, 23 Aug 2018 10:08:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 06BC72B954 for ; Thu, 23 Aug 2018 10:08:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EE7682B95C; Thu, 23 Aug 2018 10:08:55 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 646562B954 for ; Thu, 23 Aug 2018 10:08:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726925AbeHWNhw (ORCPT ); Thu, 23 Aug 2018 09:37:52 -0400 Received: from mail-eopbgr680045.outbound.protection.outlook.com ([40.107.68.45]:58691 "EHLO NAM04-BN3-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726081AbeHWNhv (ORCPT ); Thu, 23 Aug 2018 09:37:51 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Synaptics.onmicrosoft.com; s=selector1-synaptics-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=9hysea9UFcL3FppkQ2P4N+Ba4g6bzUajyLtruoawRqM=; b=Mf8TwfWGL56QxWzwrPvm8V21bYpeNuKxGwXak6eBnd3LRNKuTN6tfPz6Aze5OfPa8mtU9kt7msGHRq8wky+51g/MDg9zsNUhGJZjAbjt729UJ84gC6FZZUFIHXeqOl3rS1ZAA47quBu/+0efNysz6litenyPCd1ywqWOFJnfZ5k= Received: from xhacker.debian (124.74.246.114) by SN1PR0301MB1582.namprd03.prod.outlook.com (2a01:111:e400:5232::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1080.13; Thu, 23 Aug 2018 10:08:48 +0000 Date: Thu, 23 Aug 2018 18:05:49 +0800 From: Jisheng Zhang To: Adrian Hunter , Ulf Hansson Cc: , , Subject: [PATCH v4 0/3] solve SDHCI DWC MSHC 128MB DMA boundary limitation Message-ID: <20180823180549.78e508db@xhacker.debian> X-Mailer: Claws Mail 3.17.0 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 X-Originating-IP: [124.74.246.114] X-ClientProxiedBy: TY1PR01CA0173.jpnprd01.prod.outlook.com (2603:1096:402::25) To SN1PR0301MB1582.namprd03.prod.outlook.com (2a01:111:e400:5232::16) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 8ad12380-fa9a-428e-04ac-08d608e06c6c X-Microsoft-Antispam: BCL:0;PCL:0;RULEID:(7020095)(4652040)(8989137)(4534165)(4627221)(201703031133081)(201702281549075)(8990107)(5600074)(711020)(2017052603328)(7153060)(7193020);SRVR:SN1PR0301MB1582; X-Microsoft-Exchange-Diagnostics: 1;SN1PR0301MB1582;3:oj4+Z3pTBh6F/tS2xLE8fM/kLw8hb1ftlr8vPYCRg5jxjkwJ6oncVpOfIV3iaOPwkhBD95fdqRNkL4JwWNVy26TBV33lrLSKWMuNEoVajnkOeADbTsfxYOjhCBZcagjMNfDL0cxKPuyTURYJdAuAhDcOLM0RKI8rjGjbAiQRoi8bEbXo/cOrLduMT9o0mwapGrWweVAMaNlx7Ppj+NvU20NewemFBQjzAmwe52+IXdNhWkJvVF5S9Hb7kBdZzOAX;25:Culry0TXHvIj0lC1SBBEqDvVQ0cW8uNrF0OSRuT4GDb+5Mm48zLG+ug6vgkpcglfOpE7MwqZgfduvZ9ImdV00Zp3z2ybF2YlJnxmZ+M8KxAAPxnvYX+MRthOUNJL0N+j1unngXXw0RYRXvT0YdVxQL/UhsZXMuppVClPFhlFe7s3qWfkS+o3SV8dww0Bf3cFR7lmDC6Kkkk0A3keL+t2cLANTFCquqPyYu5cHHEbJh0mpeK6ysSQZeY7J9aGlAgJ/uZJ0DVEvVzk3VvRKUkTP4DEqzIrS9Pzapj77FhI+VahAlcBxxp/++z1tlNqsl9CDQt1ngDkdyyNn7pXV7vuMw==;31:XsFgYzP1mSJWJ1P25mP9QOBFbTIm9nUg04ZPLzZy/SDfSN31/f7+1f6/qUYDL1OA6ULY+SiGDuCrrRlybmRbJd6GZqr2irNnL+kqzYT0VK4cR9fdeJJwoB+VJh1HARZOxAtPFl9sRTkh9W1dlbrXLDm549uaR1nGOm4qZU8TBx2ibzsHlF/SSJNb4VvbYRjlFUz4xiCzKH4dplCkWBjWMnsxODtQVdCI3JR/GVucmUM= X-MS-TrafficTypeDiagnostic: SN1PR0301MB1582: Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=Jisheng.Zhang@synaptics.com; X-Microsoft-Exchange-Diagnostics: 1;SN1PR0301MB1582;20: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;4:5cjenahAHPY48eqcYLx6+7VR2DHwaVOPxSgek1zHy1Dv3JS3b5ETPYDBvUm4tV/YVhu8qeBvyEvF9uAUkahTy9vy69FfP5Vp8hYhr6UqBzeasXmo/UhoyFrCzcuRM+STPT3/wjRUqnH+XjfIab8CwJwY2zXGuL10Cf+JQhrlPX6WVjPK+8j0aqxdx3kjhgbcCGLea/rEmxqX7Ar1iUYWAoSA0qKw8jWDkCCBZ0pGPw2mWPiNFJYrww6g13gjzwkDIMX6TnZZh+tqEAScXxJ1tA== X-Microsoft-Antispam-PRVS: X-Exchange-Antispam-Report-Test: UriScan:; X-MS-Exchange-SenderADCheck: 1 X-Exchange-Antispam-Report-CFA-Test: BCL:0;PCL:0;RULEID:(6040522)(2401047)(8121501046)(5005006)(93006095)(93001095)(3231311)(944501410)(52105095)(3002001)(10201501046)(149027)(150027)(6041310)(20161123560045)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123562045)(20161123564045)(20161123558120)(201708071742011)(7699016);SRVR:SN1PR0301MB1582;BCL:0;PCL:0;RULEID:;SRVR:SN1PR0301MB1582; X-Forefront-PRVS: 0773BB46AC X-Forefront-Antispam-Report: SFV:NSPM;SFS:(10009020)(39860400002)(346002)(396003)(366004)(376002)(136003)(199004)(189003)(66066001)(25786009)(6116002)(52116002)(3846002)(5660300001)(110136005)(956004)(50466002)(54906003)(81166006)(81156014)(7696005)(86362001)(33896004)(8936002)(47776003)(478600001)(106356001)(97736004)(186003)(4326008)(486006)(16526019)(105586002)(386003)(6506007)(50226002)(26005)(2906002)(1076002)(72206003)(23726003)(53936002)(14444005)(217873002)(7736002)(476003)(68736007)(305945005)(316002)(9686003)(55016002)(8676002)(230700001)(39210200001);DIR:OUT;SFP:1101;SCL:1;SRVR:SN1PR0301MB1582;H:xhacker.debian;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; Received-SPF: None (protection.outlook.com: synaptics.com does not designate permitted sender hosts) X-Microsoft-Exchange-Diagnostics: 1;SN1PR0301MB1582;23: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 X-Microsoft-Antispam-Message-Info: HNvLOB+4UVF+AJvtT96SPYPY2xffehm5HBtgY1ZAXHgmd20Queqc7qn0vnSV/GRbztgovnLuHbbRXVMASGgWdB8NAEK8jxnJzTMoVyEotHefacMKggiDDeg798N6BjHbcTbvfVJWFU2K/lKNMPCss0wbH+SD9IRugZUKUEvstD0eZOk6J/m+3kvZkxTypf6vp16GK8D74lX6iNUcaAF6lssoggZ/Do8sm2mU/qIWc9EQheInv78Zle4mKmRe6f+Z8QJgsr5IpySy1PDQpB4fNPwBo7Wb1hkTzdbrrhZRj6w2Rufs3arCQDW5kHw+36q9QZBN1uy0zclaQJ0CctuJjbDp+CdQexuhuUYysHhlbvY= X-Microsoft-Exchange-Diagnostics: 1;SN1PR0301MB1582;6:9TfrH7Ufb87Dg1ASCvIgBpsbgfmUKU0Vcl9iEEEEte5e0WXtHr0+KRmcTkGDW42MphKEVU3tXVYJoV1g0jgSpFXQC8AYZZ6dNL0CCEwP4irGelN1WWq+wIy3JA7mFoZUbijgUYnugHKeaGuAmDPe+YJg4+OvEzvK335JB3E5CMZMzmABgrbiLvDHM1/Ls1XLc5LNX3Agz6qWyfqXscwz+R96rClMf31iICtTwrH/rBc61RYtia+xEUfMplgfWz3pY07QBfo1AB5Wdr2BFqvtD5ZFIbRUTk/s5RPGa82/+bv2Q49a9fQFLoIvpA6EfQol0/YfqXL+sJLMFrdlhfGI4kLH8aowIXk4SkA7M3Ha+B3CpsSEKDBvI+XwHhMr9TWkO5ziv/TiTsEkqW/aoqCiLNLJQSCmy6kTJQjxsRQnSTWy3Jie1K+FVL5UtN3VDyHDgmDaOjInpjgSwuchYYRSgw==;5:Wuh7U4dONmuHGF02MggFzr2uVKj2RAWO3c/l1K2tLrfpPPGmqpASFdSVY9uFASb/bPRjfI5PLNUrMbNAPQFK5OEkYOmIvDmxVnFqGyEEjjWatdAQWCJckwOLtD2hefbNT0K4QiLmuieCngB5cG354OTUJy3Yi3Q4tJx4AZmqZ9A=;7:p3QEWXRHYwxmY3+26t68coTvqmPqIXYIMK0G+sDsAatgLNBZQSO1mpm8uKElmP1+U09U9Ly0ciGx8W5jkahylwm/1GaHxJ0O1NGuBjE9bf/A2Bhuhv6hMYDQlu6EkUlG+YwPGvhKd3n2HMsyfoIJgcuqgTbtwvzSfngkni7dowekK8BsYagyv3QUKg8Mc1lwreNZ3fKcHv/xDaXqpMPSRwOxQ7FuZSWt+tulCX3b4AVIYt9dnB5YEHD/lp4pLK3Q SpamDiagnosticOutput: 1:99 SpamDiagnosticMetadata: NSPM X-OriginatorOrg: synaptics.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Aug 2018 10:08:48.9999 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8ad12380-fa9a-428e-04ac-08d608e06c6c X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 335d1fbc-2124-4173-9863-17e7051a2a0e X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN1PR0301MB1582 Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP When using DMA, if the DMA addr spans 128MB boundary, we have to split the DMA transfer into two so that each one doesn't exceed the boundary. patch1 adds adma_table_num to struct sdhci_host so that driver can control the ADMA table number. patch2 introduces adma_write_desc() hook to struct sdhci_ops so that driver can override it. patch3 finally solves the 128MB boundary limitation. since v3: - s/adma_table_num/adma_table_cnt - add comment to adma_table_cnt - make the exported function name without the _ - let sdhci_adma_write_desc() accept &desc param and set the new desc value since v2: - make use of "likely" to check (!len || BOUNDARY_OK(addr, len)) - explictly include for SZ_128M since v1: - fix BOUNDARY_OK macro if addr+len is aligned to 128MB - use DIV_ROUND_UP to cal extra desc num - fix !len for dwcmshc_adma_write_desc() Jisheng Zhang (3): mmc: sdhci: add adma_table_cnt member to struct sdhci_host mmc: sdhci: introduce adma_write_desc() hook to struct sdhci_ops mmc: sdhci-of-dwcmshc: solve 128MB DMA boundary limitation drivers/mmc/host/sdhci-of-dwcmshc.c | 39 +++++++++++++++++++++ drivers/mmc/host/sdhci.c | 54 +++++++++++++++++------------ drivers/mmc/host/sdhci.h | 7 ++++ 3 files changed, 78 insertions(+), 22 deletions(-)