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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A3506C4829A for ; Wed, 14 Feb 2024 04:18:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:In-Reply-To:From:References:Cc:To: Subject:Date:Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=BxRw+JFXCbEawvt1eKYze0Hsj5V2BTmsAItpoQMImFk=; b=T7bvc10Efy/ShPInD3tDXCvAdE TWC4Lwguo73udUPS6IMVrLH1LXeIj2N4R8CToAOk9cNMFDZlO+XWMC4aaDmOAG5YVIQ2itfdMUzCl ar5QcoPpQZ2jgjsBM+WxcyRojsYjsB6tqk+Z+jOVsj42Z/fbAcUBQJPk9GSHcb7FgHn52YIhJqU/M N+Nm0ATSH7YDePXSX2Q4WGEtPUX7NkEwIqPjE7JULnWWJXRTVRd3yM2Vv+sEHlcFTcXXPPm5wKC4h KufsLYb6qoIlqBDD8V2JkoxDKIrtxpCCRBQmAEVKrkNZVmd19aM3kPZtT1PGpOOWCbKHXbqXfh4vB gywF32eQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1ra6j5-0000000BnDm-3ALG; Wed, 14 Feb 2024 04:18:27 +0000 Received: from mail-co1nam11on20601.outbound.protection.outlook.com ([2a01:111:f403:2416::601] helo=NAM11-CO1-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1ra6j3-0000000BnBq-1mez for linux-arm-kernel@lists.infradead.org; Wed, 14 Feb 2024 04:18:26 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=mAq3YX+7DTY279auwMnj27kVSt2pzDBC8/iswqv+br/ZMdxmNHwl2+KQQKbiATKMAAEuUAAkeqrGB0tmsAo85rvftxB6LRhMjsqJ64ZLXqQGxWdMkcl4HDVEoCFJex2AznXi/hn0vxWDcS8lwfBb5BjRnLsw9Lmsp+GpfvoJFc1df/m4KPNMYpjzz6uTKBJYFrGkcbZ0K9QIED4KFQVzHt4WppQNKmBVgFp9IFOuslKt9EP0XMQ/05i8FHhawjEaywEr9BFC0NyJim2hH9kh+9Bfb/HlccrEeaFJODDdtzo1VAXlE24ddC/1JlIL0twp6ABzPmrFh691zYqMHinlNg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=rU2uQsJE00ho6XA6t1IulkKkiovT1fk000EV0BbvKbs=; b=Mkk+BTBzSitbPRVpwAub09X9aRruVzUsBNiZHj12X2gV7zDFRjrMPP+yOzEWVc7BibegPO2me5XvbuBBnvLmvuHCBbuF601W9OFeMLljgQ2rnLKe5Ce+k+vuQBtNSoHnDvUOJ+uv1xpWWc0c3IaITH5TGFUheXAReP14h5NgM/FyU5wmoTK/Rom4KFGjdrCs+fw0+Z6XXBQzgvFsEWTugjCzc8cnzsH7qRJk/b0yt1Ac4lV+3nXpkMQHBpyFp1Lb2slRFzHgla6XLXvL2cgocx+SefgFFvspESKG6aG9OiKIwj0wtyMKoRNm/n5Sko07BmlDKDYZfwmzAAFxy1yifQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=amd.com; dmarc=pass action=none header.from=amd.com; dkim=pass header.d=amd.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=rU2uQsJE00ho6XA6t1IulkKkiovT1fk000EV0BbvKbs=; b=RNty4yVvKxHeoyinQ258+wDNWeQ2RQHy3aKgpYmYxMWyPIrVfJh1l86sVY0lySC78P15wig1hdaEkP8WkAP9drs3+hyg0fNJzZ3r2AYBRiuoXGbKUhembYYHGQi1E0YIBPSvx2lRfujGBFBjsZdRcmLk+hH830dziEHy+32WDCo= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=amd.com; Received: from BL1PR12MB5827.namprd12.prod.outlook.com (2603:10b6:208:396::19) by MW3PR12MB4412.namprd12.prod.outlook.com (2603:10b6:303:58::10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7292.25; Wed, 14 Feb 2024 04:18:10 +0000 Received: from BL1PR12MB5827.namprd12.prod.outlook.com ([fe80::6bd9:3cc9:6012:5517]) by BL1PR12MB5827.namprd12.prod.outlook.com ([fe80::6bd9:3cc9:6012:5517%5]) with mapi id 15.20.7292.010; Wed, 14 Feb 2024 04:18:10 +0000 Message-ID: <7a243a1e-6b47-bc2f-c538-b57db1c9c580@amd.com> Date: Wed, 14 Feb 2024 09:47:54 +0530 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/2] PCI endpoint BAR hardware description cleanup To: Niklas Cassel , Richard Zhu , Lucas Stach , Lorenzo Pieralisi , =?UTF-8?Q?Krzysztof_Wilczy=C5=84ski?= , Rob Herring , Bjorn Helgaas , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Minghuan Lian , Mingkai Hu , Roy Zang , Srikanth Thokala , Marek Vasut , Yoshihiro Shimoda , Thierry Reding , Jonathan Hunter , Kunihiko Hayashi , Masami Hiramatsu , Jon Mason , Dave Jiang , Allen Hubbe , Manivannan Sadhasivam , Kishon Vijay Abraham I Cc: Damien Le Moal , Frank Li , linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-renesas-soc@vger.kernel.org, linux-tegra@vger.kernel.org, ntb@lists.linux.dev References: <20240210012634.600301-1-cassel@kernel.org> Content-Language: en-US From: Kishon Vijay Abraham I In-Reply-To: <20240210012634.600301-1-cassel@kernel.org> X-ClientProxiedBy: PN2P287CA0011.INDP287.PROD.OUTLOOK.COM (2603:1096:c01:21b::18) To BL1PR12MB5827.namprd12.prod.outlook.com (2603:10b6:208:396::19) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL1PR12MB5827:EE_|MW3PR12MB4412:EE_ X-MS-Office365-Filtering-Correlation-Id: e9a49421-e5b3-4755-5cfd-08dc2d13f3d6 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:BL1PR12MB5827.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230031)(346002)(39860400002)(366004)(136003)(396003)(376002)(230922051799003)(451199024)(186009)(64100799003)(1800799012)(2906002)(7416002)(7406005)(6666004)(6486002)(36756003)(26005)(6512007)(6506007)(53546011)(966005)(478600001)(8936002)(38100700002)(2616005)(31696002)(66946007)(66476007)(4326008)(8676002)(66556008)(83380400001)(5660300002)(921011)(54906003)(110136005)(316002)(31686004)(41300700001);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?MmsvdU1LOU01WU5JTDVuK1hoYUpiRkkyTzQycTBnMExCdGltd2VUVTZVekFM?= =?utf-8?B?eU8xQzhQTzZjUERvamUrTi9qZDJQRy91U1VrTER0ZFpzbDg2b3g1YlJIVERx?= =?utf-8?B?Mkx6WGlWbVdFUmt3ZC8rMTQvZ3haeGp4R2ppSjFZdE5xZWg3U2lTK1c5RFVq?= =?utf-8?B?eFRsbExIdllvTzNUK2ZHR1dNQ3FvWFlEVkFzUzI1WHNNME1POUFjR2xZSU1T?= =?utf-8?B?RnRaZ1N1alVGWHFuYVdkeFJ1akF4NzdwNWptcFRJZEhGWWpZYWs1aForZDB1?= =?utf-8?B?VHJDdGdMeEhhWTFNeWJKenJJNU9GYy85UGdwNVNmU0dFSGNnVnMxcWY5YThv?= =?utf-8?B?Z3hNcjFzbXhMeFlweFI3YmkyeVo3V2hVaU4xVmZORnA2dDl4UFI3QUZSVlpr?= =?utf-8?B?NzZhQzFuRi9lbTZqd05JRVpPdXVJbDZvVGRYSUNLM2xqdEczZEpWSTRJbDFT?= =?utf-8?B?RS9aTHpKbDNyWm4yMzU5T0FzbjNtb2hjMUc2aDdNcFoxckNOamZ1YjlldUtJ?= =?utf-8?B?ZVJiZjhscDJTbGkrSkpjWnVDZVdFNW1hZnIxQjNlc3A5Rm82b0EyblJVNCtY?= =?utf-8?B?b2xGWWkyMnZkU3dHenRveWhsWm9YRWRKSUpVdlYrQSt5K2V2V1JrSE5DcUl1?= =?utf-8?B?dFA3d2FuY2tKeVErbFBNZ2JKOG1ETjlCSVN3RE5aVUpiSmlBSXkyc3czUnVE?= =?utf-8?B?d1F0SENxY2RDcTlVZmVTZFo2eFhDRTdycUxuSjNlOUJmT05nL1d1bTAyTFB2?= =?utf-8?B?WkdsWDQ3UHR0ZW1XU2Nua3BSZ1JIclA4OVkyQThsS2pZc3lLblg5VmFCRHRk?= =?utf-8?B?QXIrTzFKNXlmbFFoUG50emRoMC9jVzFuMHBPYzJMVUlGNEowdFU1azZlK3Ja?= =?utf-8?B?UGw3cjg2ZHFkaXFLVUxVTnVSdGRuSWVXaUwyOWR1eVBnQmtrUkorVURMbHlw?= =?utf-8?B?dXZjMytHN0V2V0dweHNrckRxSVdxNERkZ0xDNGpGdS9mc0dQOTZSMmRrbjVG?= =?utf-8?B?MDJCWm9iQUFxanZqMmEwbGRETGZsOWdTeUdsdWV2YlgrN0tXeGtSUHRMa1hj?= =?utf-8?B?NWxCYkFPdm55cDhJRDZGZGpVYkE5NzM5WjVHWko2UTJyYlcxSnR1cEtDMk5U?= =?utf-8?B?ZXA3bXo1T0UvVnMzTW5aVlVmeHFvM2dYckY2YWFMbXZLcDdycWVtS1BKR2lj?= =?utf-8?B?WW5TUDMyTVhDY1JXUTU1a1JoQ2VDVXRxOG9JbDliamxvOWhpQkNGVU5hU2F1?= =?utf-8?B?c1VvdDJiRFBVcVJQY2FNSzVBclI3dEVyUkxtWFE5czAzV1JVOUtLbUFTSkc2?= =?utf-8?B?amZuSzBVbmhwdDZpdllUZmxSYWlJTis3eWNBSm1KRE11OFR0MHd3cHBwemFF?= =?utf-8?B?aFI4TXNYR3RTdktsQmFpaElVclc1R1JZVVl4WEhYQ3JyRnpVUzBKTlF3STZp?= =?utf-8?B?MTlQMjFoRXQyT0xydW1ndEovYVBXZUJ1MzBlb2dab0JuSU95dGZOR2t6MmxY?= =?utf-8?B?WGtNdHVJeTVXb3RHNGR2VVlHUFpoNXROdWFKWGgzZ1p2T2FDUzBibmQ3WFI4?= =?utf-8?B?dVY1ZDNraElrSWFWTW1mTFM3NkVyNlVJSklEblZFckdxVnl6RFRKVGk4Z2Zs?= =?utf-8?B?ODVyMjNpSFJrNEZrUG1Id3V0cFhlOWhuZVFoNldEMS9kMTVNMzNCWWZoYXUx?= =?utf-8?B?dUtOVWJxamk4Z1hUbEs4TFBkZXFLNHk2WFZhOGFzUnpmbWlwRG01anNPU0M3?= =?utf-8?B?bGsrTzg4cmE3Qk9hQmJkR1NiSUdYTk82ais0OXhzOTlPdDJZSkVMc1FIWSth?= =?utf-8?B?OGZvRjYzRzRXc0hKWmREeXdyRmhpTGRjYjFIZFd5d2U0WXhoQmJiZTdveW44?= =?utf-8?B?TXEyMWhrbHQzR3oxNXJWYUhIVTBCZUxFeFhhcG0yY0RicVRUejFNcVBMeFk5?= =?utf-8?B?anIyZ2RwTlQxL21GVFhKRUc0T3IrMTZxMW9CeEFlZXR0UDN2eFFLUzNFdzdp?= =?utf-8?B?UDVKc2VOZERSNnNmVy9sZHBaZWcwREN0MUJ6cEswMkNEbXZxL2V5dzNkbUpz?= =?utf-8?B?OEQxNzhCOVpNNzJndVFzZWUvMXE3QmRQNitrb3Uwd0dzbXlSR1FZaDliY1Bn?= =?utf-8?Q?4WoiQdno9LmL13786n56rUw14?= X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: e9a49421-e5b3-4755-5cfd-08dc2d13f3d6 X-MS-Exchange-CrossTenant-AuthSource: BL1PR12MB5827.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Feb 2024 04:18:10.1135 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: bl0UgFGDon3aNRDMqfzIhy9ciAWw6SL7J0vQleU7dlchoOOBCSAG+s0HP5W6V42fytiHisWJX06th5ujNiW8fw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW3PR12MB4412 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240213_201825_491933_5F6E7BBB X-CRM114-Status: GOOD ( 20.29 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Niklas, On 2/10/2024 6:56 AM, Niklas Cassel wrote: > The series is based on top of: > https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git/log/?h=endpoint > > > Hello all, > > This series cleans up the hardware description for PCI endpoint BARs. > > The problems with the existing hardware description: > -The documentation is lackluster. > -Some of the names are confusingly similar, e.g. fixed_64bit and > fixed_size, even though these are for completely unrelated things. > -The way that the BARs are defined in the endpoint controller drivers > is messy, because the left hand side is not a BAR, so you can mark a > BAR as e.g. both fixed size and reserved. > > This series tries to address all the problems above. > > Personally, I think that the code is more readable, both the endpoint > controller drivers, but also pci-epc-core.c. Thank you for cleaning this up! FWIW: Reviewed-by: Kishon Vijay Abraham I > > (Oh, and as you can probably guess, I will be sending out a patch series > that adds BAR_RESIZABLE to enum pci_epc_bar_type in the coming week(s).) > > > Kind regards, > Niklas > > > Niklas Cassel (2): > PCI: endpoint: Clean up hardware description for BARs > PCI: endpoint: Drop only_64bit on reserved BARs > > drivers/pci/controller/dwc/pci-imx6.c | 3 +- > drivers/pci/controller/dwc/pci-keystone.c | 12 +++--- > .../pci/controller/dwc/pci-layerscape-ep.c | 5 ++- > drivers/pci/controller/dwc/pcie-keembay.c | 8 +++- > drivers/pci/controller/dwc/pcie-rcar-gen4.c | 4 +- > drivers/pci/controller/dwc/pcie-tegra194.c | 10 +++-- > drivers/pci/controller/dwc/pcie-uniphier-ep.c | 15 ++++++-- > drivers/pci/controller/pcie-rcar-ep.c | 14 ++++--- > drivers/pci/endpoint/functions/pci-epf-ntb.c | 4 +- > drivers/pci/endpoint/functions/pci-epf-test.c | 8 ++-- > drivers/pci/endpoint/functions/pci-epf-vntb.c | 2 +- > drivers/pci/endpoint/pci-epc-core.c | 25 +++++------- > drivers/pci/endpoint/pci-epf-core.c | 15 ++++---- > include/linux/pci-epc.h | 38 ++++++++++++++++--- > 14 files changed, 105 insertions(+), 58 deletions(-) > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel