From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754278AbdFWE4D (ORCPT ); Fri, 23 Jun 2017 00:56:03 -0400 Received: from mail-dm3nam03on0042.outbound.protection.outlook.com ([104.47.41.42]:37568 "EHLO NAM03-DM3-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753269AbdFWEz7 (ORCPT ); Fri, 23 Jun 2017 00:55:59 -0400 Authentication-Results: arm.com; dkim=none (message not signed) header.d=none;arm.com; dmarc=none action=none header.from=cavium.com; Date: Fri, 23 Jun 2017 06:55:41 +0200 From: Robert Richter To: Lorenzo Pieralisi Cc: Robert Richter , Will Deacon , Geetha sowjanya , linux-arm-kernel@lists.infradead.org, robh@kernel.org, devel@acpica.org, catalin.marinas@arm.com, Charles.Garcia-Tobin@arm.com, geethasowjanya.akula@gmail.com, jcm@redhat.com, linu.cherian@cavium.com, rjw@rjwysocki.net, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, iommu@lists.linux-foundation.org, sgoutham@cavium.com, robin.murphy@arm.com Subject: Re: [Devel] [PATCH v9 0/3] Cavium ThunderX2 SMMUv3 errata workarounds Message-ID: <20170623045541.GQ16981@rric.localdomain> References: <1498133138-20244-1-git-send-email-gakula@caviumnetworks.com> <20170622182257.GI15336@arm.com> <20170622185822.GK15336@arm.com> <20170622193535.GA10237@rric.localdomain> <20170622210437.GA27861@red-moon> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20170622210437.GA27861@red-moon> User-Agent: Mutt/1.5.23 (2014-03-12) X-Originating-IP: [92.229.135.253] X-ClientProxiedBy: VI1PR0501CA0017.eurprd05.prod.outlook.com (2603:10a6:800:92::27) To BL2PR07MB2339.namprd07.prod.outlook.com (2a01:111:e400:c753::17) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 86a8c099-7fda-48f3-50f6-08d4b9f4205c X-Microsoft-Antispam: UriScan:;BCL:0;PCL:0;RULEID:(300000500064)(300135000095)(300000501064)(300135300095)(300000502064)(300135100095)(22001)(300000503064)(300135400095)(201703131423075)(201703031133081)(300000504064)(300135200095)(300000505064)(300135600095)(300000506055)(300135500095);SRVR:BL2PR07MB2339; X-Microsoft-Exchange-Diagnostics: 1;BL2PR07MB2339;3: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 X-MS-TrafficTypeDiagnostic: BL2PR07MB2339: X-Microsoft-Exchange-Diagnostics: 1;BL2PR07MB2339;25: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 X-Microsoft-Exchange-Diagnostics: 1;BL2PR07MB2339;31: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 X-Microsoft-Exchange-Diagnostics: 1;BL2PR07MB2339;20: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 X-Microsoft-Antispam-PRVS: X-Exchange-Antispam-Report-Test: UriScan:(166708455590820); X-Exchange-Antispam-Report-CFA-Test: BCL:0;PCL:0;RULEID:(100000700101)(100105000095)(100000701101)(100105300095)(100000702101)(100105100095)(6040450)(601004)(2401047)(5005006)(8121501046)(93006095)(93001095)(3002001)(10201501046)(100000703101)(100105400095)(6041248)(20161123562025)(20161123564025)(20161123555025)(201703131423075)(201702281528075)(201703061421075)(201703061406153)(20161123560025)(20161123558100)(6072148)(100000704101)(100105200095)(100000705101)(100105500095);SRVR:BL2PR07MB2339;BCL:0;PCL:0;RULEID:(100000800101)(100110000095)(100000801101)(100110300095)(100000802101)(100110100095)(100000803101)(100110400095)(100000804101)(100110200095)(100000805101)(100110500095);SRVR:BL2PR07MB2339; X-Microsoft-Exchange-Diagnostics: =?utf-8?B?MTtCTDJQUjA3TUIyMzM5OzQ6cmttUVpLeHdyblBQMnJxMnhCZHE0c3g2ZmNk?= =?utf-8?B?MDROTmhtWHg5T01kUWtkUnFSMkFkblRuYThoTFVhRUVwemt5THBLZnZNS0Rm?= =?utf-8?B?TTFjN1F0ekpxcXdUZ3Zob0JDSkVYQlloUG5jUVRZOG5DWU1xdzJILzN0Tkg5?= =?utf-8?B?UFRSTHMvZE1lL0Z1ay9oT1l2ZU9ZbnozaGZXWU82S3RsMEl6SVZpbG01Y2Rp?= =?utf-8?B?MUlLQktQT2xSejBFRlBHTzJGbXZrT1JtcTZkNTRDT1E0WGU2VDlLQ1FLWEwx?= =?utf-8?B?U3haNXh4N0VtaTVWdUlscHFwbDFCaFU0MEdMWlVWZGo3M1lIcHpzNTFFZStW?= =?utf-8?B?UTExYWo2aFFsa3hPejNOU3I0NGJ2aFMyNC8xVUxxZTJIblRjTkZ4Y3JsazN0?= =?utf-8?B?S1V3aitzU1BzUVRyekZNdGdiNjlVZXBXdktSSGJ5cE5KNmI3bndIZDA2QWxT?= =?utf-8?B?emppR2lXbGs4SGhLdFl2Ty9sTzByMWFRdUtyRE01ZUYrOHRCQVgwbUk0RWRF?= =?utf-8?B?czFHZnc0QTlXSWZ1RnhuOXBCekdpQkNHWTRBbVByRklrNWtlbmJIRTJOa0Ry?= =?utf-8?B?NTBBR1RkVE4yVjlEZXZ3eFB3WGpTZVoyTkRHRnZwOFBRV0FSa094THFLNE53?= =?utf-8?B?UkgxS0ZzV3BRS3hTZndJdTZ5ZDM0T2oyb013YmtMQ0dsVDFTeEhydmdaUFM3?= =?utf-8?B?cnE5VjV3RWNnWGYxS2lrZkozVFBmUDZuY0lXTEhkWkZzOS95eHpSU2h1dWZJ?= =?utf-8?B?OHhtRittNzZsTDQybGkzNllhVzMvZE1Qcm5Va1o4ZEVPNmcxR2orcDRSR21U?= =?utf-8?B?dzJxSTdRbEFQcllvaXFhTGhlZUhPWjdpNjdNVzZ1bDh2L29BSEVRcXh6dGND?= =?utf-8?B?YmdqYXlNNkxwRjR0QXJ2YWdiZjdxUk8rcFFsUThHbXZncnRQdzhib2c5NVFY?= =?utf-8?B?c3pWOFBFNjR6NWF6VTJVY2VueHI1a1h5NUxnQ3JheEFxK1ZIb0FST0dPSkhv?= =?utf-8?B?Y0VXOGNRNnV2TG51c3hNWDB0elNhRVRvNW1KUmhXS2ZLcGtrUjU0Um53S1N5?= =?utf-8?B?aDVaY2N3c29DWTBTT1cydGljbUZGUzFjL0VtNDh6anBuZVVLWjlGbmttcER5?= =?utf-8?B?NTNoN1VlQjlhVEVYVzlYUVNpNU8xR2NWbDdoaThSdDZ3V0xZZVZTMGdXRE5m?= =?utf-8?B?R1hyMGJlWlRSWGdLVm5XdFhCRkM0UC9GbHd3OU8xOU1iKzhmZlhadS9vNDBB?= =?utf-8?B?bU1lRGY4K0ZpN25xRjcydk5YNmJ0SWcram1ac25XUFErS1lwTmJrcEhSOExG?= =?utf-8?B?Q1lieHpYbHhMeDRCZUhpcFRlQVdyUWxjSnBaT1MreEdEUUFQMzF2MFZSTXdP?= =?utf-8?B?RC9wMU9TcW9MNlFYUXdSaldvemRmVzlpM1poeHlkWFhRTTdocmZVU252SFNy?= =?utf-8?B?eXdiaFVtVFBmTkJGUml2YWFmMzdGbS9DVS9uZHVnNFFGS2NYT0tyRVo5MTFL?= =?utf-8?B?YUJBT0o2YmVwTE40YkJ3QkdKeXNER2NjYi92SG5CWXNhdVVna1RnMThpV2NR?= =?utf-8?Q?ybf9re6NGqwAJCEPJAwmxSrmiZNTZbGjEQZrJNnmXxw=3D?= X-Forefront-PRVS: 0347410860 X-Forefront-Antispam-Report: SFV:NSPM;SFS:(10009020)(4630300001)(6009001)(39410400002)(39400400002)(39850400002)(39840400002)(39450400003)(24454002)(2950100002)(5660300001)(6916009)(229853002)(72206003)(23676002)(53936002)(83506001)(9686003)(966005)(478600001)(86362001)(6506006)(6246003)(38730400002)(189998001)(110136004)(7416002)(4001350100001)(47776003)(6306002)(54906002)(2870700001)(55016002)(4326008)(7736002)(6116002)(3846002)(66066001)(53546010)(54356999)(50986999)(76176999)(93886004)(305945005)(6666003)(8676002)(81166006)(42186005)(50466002)(33656002)(1076002)(25786009)(18370500001);DIR:OUT;SFP:1101;SCL:1;SRVR:BL2PR07MB2339;H:rric.localdomain;FPR:;SPF:None;MLV:sfv;LANG:en; X-Microsoft-Exchange-Diagnostics: =?utf-8?B?MTtCTDJQUjA3TUIyMzM5OzIzOjE0WENsNUhQc0ZYQVRSbnFHYlR0NHJ3ZS9K?= =?utf-8?B?QnhJNUxZQVVqWmw3ODU5Qmx6WkxFTWRUcHprYUdNbmdlcFJuNml1WVhBaUhC?= =?utf-8?B?Sk1XdDkyYkx6Y3owVG50d3dsY2JZbTJtMGEzTEZxK3JBNkRqb3d6VnBobU5G?= =?utf-8?B?NnJvcUFLYktTQ1FPcHFxZFFrMWJDZ2E3blZ3aTE2VkJIK05Sczk3WktYM0tS?= =?utf-8?B?Vms2Z2tBV2Y1cFVIcC9HaHQrbFVQNmZwWmVhVkx2YTRZMzhGOHFzdmpNb3dV?= =?utf-8?B?bFBpZkkyTG1SRG9EQk82MUpHczBUTmRVU09oRHBHdHZFenFpbUo0cmp4ZXZi?= =?utf-8?B?MElMc0lUcUs3Y1dLN292dGZwSHV4SUpjMHZpWHJtTjUwTjZtczNOWVk2aHo1?= =?utf-8?B?RzBpZkFKdXFLV1NHNmw3OEVacHBvZUpvSE5iVGlTZkRFMEpGdTN3Z0d0VE5k?= =?utf-8?B?c09vY0hLYll6blFKenY3YnBZaExYaWJseVFCRjRvMVdsNVhCeG5oSENKMXpZ?= =?utf-8?B?TytseDd6L3E2eFZKQ1pmR2xkSkpyWDdvSlNsblMrWmg5RFBDaTVZdVNiSTFN?= =?utf-8?B?Q1d3YWg2YzIrRndoTU8wNWVlalBYaDNqWE1BY0tBMEpHcTJ3VFNhWkxDZVky?= =?utf-8?B?K3UrL0FYclZPYVVrQjNEOFhZWExhQURjRGxpenNZZ3QvMWlDeDJJMVNJa3NG?= =?utf-8?B?aUJRaVpzKzNHY3JWOGtRdnZRcng4eWNHdWxPSFVGT3FVV2UvMVgreEY3a0F5?= =?utf-8?B?Nk5LYU5PMWUzclcxSUNLdW1zSEtvbUxtRkI4NmxWVTYreFlBcXBwbEk5WmpT?= =?utf-8?B?MU0zTkxhaTVxL1loRXUrNW1HYzdDRWdvMnNXUmtQM0VLVzZncGhFSkFSdk9P?= =?utf-8?B?Mi9Ua3Q2ZmIrNzNOaVZwTFdSVmE4djJZUmQwM0QreXp3NVlHNzJLUmZEcHM5?= =?utf-8?B?S29DVDgwTWlYbkdHTWZBVXVCOU1uQmk5a0tFZDRWTHoxQTNQaUJaOTk5bkt6?= =?utf-8?B?eDh1Q0YvQXFOZEZKSk9HV1Z0T0ZCeDArQVdWVEtVZU1iSVQzNVJYL1Y4dlp1?= =?utf-8?B?dzQzVUM4S0swK3g1cTM2SDVsYU5NSkhPaDRNTEdvLzZlYno1T2hJWjJUN25D?= =?utf-8?B?RkZtb3dMeGJMN29pVDZkNUpkUUxod2NqQnFrTFpjSnRkSDZORVdrd2UyYkYw?= =?utf-8?B?eS9NRkpOaWNibDlBemxFRUVQQU1yOStJc3lIbTM2UWhqMUdpWmQrUS93TjF4?= =?utf-8?B?SUc3U1JodnlHdmxqYU4zNmVBbWZCWjVHRUlsWE5HQWg2RDVBeldTVkFuWXhh?= =?utf-8?B?OXFna3RUTjdrSWUwWUNWa0MxVXhBcGUwcVY3dE1PdVIzNUFRZ1hJckpFbytp?= =?utf-8?B?bzVuNVc2TVBkeUhTd2Z1M01MQk5MYzh1bmZLQldvQkJYc0lSbUw2cjRoSVNB?= =?utf-8?B?b0c3RDVTZUx3RnRVRUIxY0x5dVlZVkJOWHZnSGNvejJTVHlQRlh6S1hXRE5s?= =?utf-8?B?RTVnU0hEZS9DZkhLZnM1RTRIOXhNbjFwYWN3SHZGVFBKSjdjYXVZUkwxMWFk?= =?utf-8?B?Q28ydzdMM1haZVJuZlkvd2pTS3UvMHFXVi8rM3JpcmlqcGNQOUhUajdmc1Jj?= =?utf-8?B?bmJ1cXhPWE1CTG80alF5QXlvMklwMWpCOFg2cXgyRk5odzNLMjlTRzhlS21z?= =?utf-8?B?dHN4d3V3RXZZdG9jZnkxQmFHU2djVTk5UlUxQ2NzRFNWMFZyNXRkMmxQS1Fn?= =?utf-8?B?STRaYXFUeVk2cW5mUVhSQT09?= X-Microsoft-Exchange-Diagnostics: =?utf-8?B?MTtCTDJQUjA3TUIyMzM5OzY6cDlGck5YWWxQYnQyamtWa0NYUnFzZE1Cekt6?= =?utf-8?B?SzY4KzUvOHJxQzMrQ3lVSkdINnJsNVg1VEZhYkE2RmQwUzdVaDlHMHdPSDNw?= =?utf-8?B?bEFxeFpDK2UvNGpRNG1saTlEU2NzWTY2eXBPN0l1WHNMaGt0WHhnY1V5dW42?= =?utf-8?B?cjVzbnRtNDk2QTVqKzVpZHJUN2V6MmloMUxwY0wvTU1QUGNPdmVxNllZYWlC?= =?utf-8?B?dlpkdmtXZjk2NTdING5mVTBkTFY5MDllZ2xZYkhsMEMzKzQ4eWJDT3c2ZEdX?= =?utf-8?B?K1VrK1FGRktaWFZzNVN3RkdtT1kxdzhReDVCRkxXRCt6dDNWMjI1clFLL2c2?= =?utf-8?B?Rmo0YTZqYVZYd1FSc3p6VE40T29xUDZsNmt3VThRcnllUFluV3V2TkhES3Yz?= =?utf-8?B?dGFobzNmUWpzcXhaU2xWanpFRWpnZ2dqM2l1eGpMcGZUMm9nZFh2K0tJdzFF?= =?utf-8?B?RkFVR09wa05EbmxXRG5wSUFMOHRBdGJOZGJPVXhMenJhKzNacnhMVm5jRTJr?= =?utf-8?B?WVA5K2dSOU1iM0tOb05UMWtwUnpFdHcwSFRGS1o4YjRvU3VjeXJGUEh5d0xp?= =?utf-8?B?cFFkRlBtaytqSzdsRkRWNENGaGJTcHJ3TVlTRGJ2RG5JRjNQQ3ViU1FtWTE5?= =?utf-8?B?ellJMjBGR0x1bjRzUmtmRmx4REIzanhtaEZuZUp1VXN3NGQwcnNBcktLSjZN?= =?utf-8?B?YWNCZkZSK1h6cGx0UXZhZENzSGloamtpL2g0T0hST3lZNHhuWHUyWG9WaHQ1?= =?utf-8?B?RFpTTWNGdlVhbzJqZ0VnbVh2amwwQnhlU2NtMGVuZmI2KzVCMW9PV0ZKVitC?= =?utf-8?B?UmpvK0pyZjBrVFFjYThQUWR3NnppdVBtZVVUQ1NCbzJqTWE1WkxmVmUyWHo0?= =?utf-8?B?VzhoWnJGbjJiYTdlK2FMeG9DWmZvbDcyaFBDRUlrY21Ud01sbHI1b3dYR2g1?= =?utf-8?B?dkE1cVhCR3FHdU1jdkQ4RTFJQXY1R3J6cndmWmp0ejd3WlBDWHRySjBRanhQ?= =?utf-8?B?OTF2a2IvclFQVnZpTTNPMlhOMDA1cVo1a0hHZVhvTFZKaWpGdWlWNjRwb216?= =?utf-8?B?UmNrSUE5MVhtQzF2RkFBT3E4M1l3Mys1VFZwSzF3S2hseDNta1Y0UWxOemhT?= =?utf-8?B?VC9zdXRmYUxCdHBMRVVLQjRFNHMvSkp6VUdtSCtYdmppK2M4bktHdnpsTlBK?= =?utf-8?B?eFNCWU9UcXRySGUrdFl4NldEQnNMdTlObC8yOThTaUV4Y05pd3hjandvV2V3?= =?utf-8?B?RVhsQWg0WlhDMmVKc0xzSzNDMk5ZMVhWdWt2dnc1cFpzT2J0ZndjWEhCS3Fk?= =?utf-8?Q?Hd1y3g7AGMLA1ExoIbsi6TRN4r/R2l8=3D?= X-Microsoft-Exchange-Diagnostics: 1;BL2PR07MB2339;5:TiAv6d0P4rtNfoqys4B3hWrx9WXUYGYY2eKFVGgYFyAIVsdC8EIA1rHryXTUQV/q8ccM/n4Rl0Wc6CRHpSZjeCPSdiATKX+FLNozlEDaqvI+FfhAFckks2P9YLRCtvFVvEbbHciH86s459EbMePfTi8J/zPwTOkcQtGeoEkKCnanrMNyANS7hkTLJK8HOnZYg7hcdgYbvIMW4H6Hhs2OlYr8vLapuyN9upUP+QJDgUKd7sPlSAwAaAiV3u+dcq59r57el0kwiwXKNavJsvwg2n4+1JOzLxdy7uX4OExxJuvDzUG3iJVkudXV5AjcptiR12v/jvwRXRLVxqcLk8eW9KGLP5BKu9byRjQBko2VOEoy+t/RuF9DHy7gNJ722Ms1c5v1BUBU/V7JvOalZ+Lh8D5iVBdjt6uj33fKogM5sx/fNcn0SZir9z5BWw2vBfYCIp9N44JInASe0v26i2xGAQ6Nm7v+pHvth7po+wPreMVt+G2AOTUHwfD1DfIB7S/s;24:7eV47slP4Ut5VDCTNvZXeeLME7fe16Gp538LAknyeAOe8ahKBJ2vps3QM1Vc0evcUJbSDnpzycfmMT8SEstEp9MI3kGp5cgq/LN523pSJS4= SpamDiagnosticOutput: 1:99 SpamDiagnosticMetadata: NSPM X-Microsoft-Exchange-Diagnostics: 1;BL2PR07MB2339;7: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 X-OriginatorOrg: cavium.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Jun 2017 04:55:50.2161 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL2PR07MB2339 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 22.06.17 22:04:37, Lorenzo Pieralisi wrote: > On Thu, Jun 22, 2017 at 09:35:35PM +0200, Robert Richter wrote: > > On 22.06.17 19:58:22, Will Deacon wrote: > > > On Thu, Jun 22, 2017 at 07:22:57PM +0100, Will Deacon wrote: > > > > On Thu, Jun 22, 2017 at 05:35:35PM +0530, Geetha sowjanya wrote: > > > > > Cavium ThunderX2 SMMUv3 implementation has two Silicon Erratas. > > > > > 1. Errata ID #74 > > > > > SMMU register alias Page 1 is not implemented > > > > > 2. Errata ID #126 > > > > > SMMU doesnt support unique IRQ lines and also MSI for gerror, > > > > > eventq and cmdq-sync > > > > > > > > > > The following patchset does software workaround for these two erratas. > > > > > > > > I've picked up the first two patches, and left comments on the final patch. > > > > > > ... except that it doesn't build: > > > > > > > > > drivers/acpi/arm64/iort.c: In function ‘arm_smmu_v3_resource_size’: > > > drivers/acpi/arm64/iort.c:837:21: error: ‘ACPI_IORT_SMMU_V3_CAVIUM_CN99XX’ undeclared (first use in this function) > > > if (smmu->model == ACPI_IORT_SMMU_V3_CAVIUM_CN99XX) > > > ^ > > > drivers/acpi/arm64/iort.c:837:21: note: each undeclared identifier is reported only once for each function it appears in > > > make[4]: *** [drivers/acpi/arm64/iort.o] Error 1 > > > > > > > > > I don't see ACPI_IORT_SMMU_V3_CAVIUM_CN99XX defined, even in linux-next. > > > > > > What's the plan here? > > > > It is defined already in acpica and we actually waiting for the acpi > > maintainers to include it: > > > > https://github.com/acpica/acpica/commit/d00a4eb86e64 > > > > We could add > > > > /* Until ACPICA headers cover IORT rev. C */ > > #ifndef ACPI_IORT_SMMU_V3_CAVIUM_CN99XX > > #define ACPI_IORT_SMMU_V3_CAVIUM_CN99XX 0x2 > > #endif > > > > to both files: > > > > drivers/acpi/arm64/iort.c > > drivers/iommu/arm-smmu-v3.c > > > > I thought it was a solved problem (and that the IORT patch was based > on Robin's workaround) but I was clearly wrong and I apologise to > Will about this. > > FWIW, you could add the define in include/linux/acpi_iort.h and I will > remove it whenever ACPICA changes make it into the kernel. Adding it there will still let depend us on acpi maintainers, while I think the over 2 files might go through arm64 tree smoothly. A change in acpi_iort.h also adds the definition to other archs and I don't think that adding arch #ifdefs to avoid that are welcome in that header file too. I am going to resend my patch below with an improved wording. Thanks, -Robert > > Thanks, > Lorenzo > > > This is similar to what Robin did. > > > > (I checked arm64 include files and the closest was > > arch/arm64/include/asm/acpi.h, bug this seems not really suitable to > > me.) > > > > I have created a separate patch to be applied at first below. We can > > revert it after acpica was updated. > > > > -Robert > > > > > > > > > > From ad7f0112a2a71059c32bd315835c33cc7bc660b8 Mon Sep 17 00:00:00 2001 > > From: Robert Richter > > Date: Thu, 22 Jun 2017 21:20:54 +0200 > > Subject: [PATCH] iommu/arm-smmu-v3: Add temporary Cavium SMMU-V3 model nuber > > definitions > > > > The model number is already defined in acpica and we actually waiting > > for the acpi maintainers to include it: > > > > https://github.com/acpica/acpica/commit/d00a4eb86e64 > > > > Adding those temporary definitions until the change makes it into > > include/acpi/actbl2.h. > > > > Signed-off-by: Robert Richter > > --- > > drivers/acpi/arm64/iort.c | 5 +++++ > > drivers/iommu/arm-smmu-v3.c | 5 +++++ > > 2 files changed, 10 insertions(+) > > > > diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c > > index 797b28dc7b34..15491237a657 100644 > > --- a/drivers/acpi/arm64/iort.c > > +++ b/drivers/acpi/arm64/iort.c > > @@ -31,6 +31,11 @@ > > #define IORT_IOMMU_TYPE ((1 << ACPI_IORT_NODE_SMMU) | \ > > (1 << ACPI_IORT_NODE_SMMU_V3)) > > > > +/* Until ACPICA headers cover IORT rev. C */ > > +#ifndef ACPI_IORT_SMMU_V3_CAVIUM_CN99XX > > +#define ACPI_IORT_SMMU_V3_CAVIUM_CN99XX 0x2 > > +#endif > > + > > struct iort_its_msi_chip { > > struct list_head list; > > struct fwnode_handle *fw_node; > > diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c > > index 380969aa60d5..c759dfa7442d 100644 > > --- a/drivers/iommu/arm-smmu-v3.c > > +++ b/drivers/iommu/arm-smmu-v3.c > > @@ -412,6 +412,11 @@ > > #define MSI_IOVA_BASE 0x8000000 > > #define MSI_IOVA_LENGTH 0x100000 > > > > +/* Until ACPICA headers cover IORT rev. C */ > > +#ifndef ACPI_IORT_SMMU_V3_CAVIUM_CN99XX > > +#define ACPI_IORT_SMMU_V3_CAVIUM_CN99XX 0x2 > > +#endif > > + > > static bool disable_bypass; > > module_param_named(disable_bypass, disable_bypass, bool, S_IRUGO); > > MODULE_PARM_DESC(disable_bypass, > > -- > > 2.11.0 > >