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 D6D54CAC59F for ; Wed, 17 Sep 2025 19:04:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:MIME-Version:Content-Type: Content-Transfer-Encoding:References:In-Reply-To:Message-ID:Date:Subject:Cc: To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=BXh54Be3gTyU1t/hTfMqRaGfJ/Y/mGCpnRBAH1QuTC0=; b=BK+LOWq8qrIZam44r2PmrIZLml KkKF/E0qDhfuCGyePVIeUtRME9mHzkHMRWqv9Y6N1xEj1CQUj8EmE5Qpd7+jBpor/rSQtm9sYUNZC 8va0N0cnyRUzdMAHIXekyXFwaOQac7VteUfEVHJ9TJYJ9CVN41BVqVvvnazAaqTiuatEo9ZVQwWsP 7SeVVcUjtGyfRJuA7WJOg40JPeqvJLY4mIzXSDa4tbm7WbdTYjhM5goTNyGJ5IkfkQipsxzPGUEZi b2IfgIXDyhWFE9OTAO+vRfMFaAQV8/vYSKk7A+xCKbBeWYx0fScsoQfBcdBfqyChtX2HfiwrVUgns RpeYktbA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uyxRy-0000000E6XN-2jGX; Wed, 17 Sep 2025 19:04:18 +0000 Received: from mail-southcentralusazlp170110003.outbound.protection.outlook.com ([2a01:111:f403:c10d::3] helo=SN4PR0501CU005.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uyxRt-0000000E6QL-2hvl for linux-arm-kernel@lists.infradead.org; Wed, 17 Sep 2025 19:04:14 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=j5A4hEpYcbTuYpW3zEJJTj/AjMVSCNp0tDDTtlC1cN0DkWo7CMxLYyOUEdOH2OnaGsobBQUsztHq7dhbL11T6SSQGpSixFO1TqWuBc560I+CCw+6aoSVItFkyssOafDd8b6MB10kiOftJ50bNnxlPCALdsuABoyapwdAOIAmqtXrqgdTf+7YciHFPpitcwfzpQuKr1PmUVEeHP74PUlFTkHbhbAA6ubUhLn5KooVLrieFgFCEzDkBSg8zbqP4RdVv5ZoZhHZ1C7rIXW/2c05RIRQFar3UIyC7rWPo/pP2Jesu6giP7cFD0cpQmcD6pWiJq6Wh3EHaratT5YaLsbfHQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; 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=BXh54Be3gTyU1t/hTfMqRaGfJ/Y/mGCpnRBAH1QuTC0=; b=NMeWIMEC9tamfuMNOh/shSgSiJCTQ/E5vBDXpzP0hNWu8Gf6aVrQXbWOOWxm9NlUZGD9dlY4xyjc56MF6H7YVE56G5p+HyEL1l+uJFobFwsb54GXzfKkp5JAbeCNM0jEAMZuB21g+BoKbkFWuF+NmzSMJ792uVcV66/lt+YMlURPIzxd+hdBKQZKmI6jklLo8ebn376ncG9AeEDPq24o4xtLtUZx8ExAwB8QtY9yaV2KFCCgLhr6AMQQ3n2GtznENP4K8FAVF2K7WOsodg/8X8CsxAKE8Q8Pk8Cth6Ux63hkE+s8clQyos78IY5Hulh8ZUGLHuRISqwTbTBlAd4KqA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=os.amperecomputing.com; dmarc=pass action=none header.from=os.amperecomputing.com; dkim=pass header.d=os.amperecomputing.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=os.amperecomputing.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=BXh54Be3gTyU1t/hTfMqRaGfJ/Y/mGCpnRBAH1QuTC0=; b=bs9evD62m0zIFjApwQ+7uNMAc0YphtUesjVfD2DE1j7s+wyjBAffW2Y5OtzRRlHy5JpvzG7c/PgPWkrm4vvhBnO7fDzEUH8rSbKWq5gyqjdj8bAFRmAT3pNUem8tIu7vtk2nRU0DklEsHlQgZ9z2Kc+EBo93CiTGDyrD+CX+L6o= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=os.amperecomputing.com; Received: from CH0PR01MB6873.prod.exchangelabs.com (2603:10b6:610:112::22) by LV8PR01MB8429.prod.exchangelabs.com (2603:10b6:408:189::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9115.19; Wed, 17 Sep 2025 19:04:09 +0000 Received: from CH0PR01MB6873.prod.exchangelabs.com ([fe80::3850:9112:f3bf:6460]) by CH0PR01MB6873.prod.exchangelabs.com ([fe80::3850:9112:f3bf:6460%3]) with mapi id 15.20.9137.012; Wed, 17 Sep 2025 19:04:09 +0000 From: Yang Shi To: catalin.marinas@arm.com, will@kernel.org, ryan.roberts@arm.com, akpm@linux-foundation.org, david@redhat.com, lorenzo.stoakes@oracle.com, ardb@kernel.org, dev.jain@arm.com, scott@os.amperecomputing.com, cl@gentwo.org Cc: yang@os.amperecomputing.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH v8 2/5] arm64: cpufeature: add AmpereOne to BBML2 allow list Date: Wed, 17 Sep 2025 12:02:08 -0700 Message-ID: <20250917190323.3828347-3-yang@os.amperecomputing.com> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250917190323.3828347-1-yang@os.amperecomputing.com> References: <20250917190323.3828347-1-yang@os.amperecomputing.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: CY8PR10CA0010.namprd10.prod.outlook.com (2603:10b6:930:4f::16) To CH0PR01MB6873.prod.exchangelabs.com (2603:10b6:610:112::22) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH0PR01MB6873:EE_|LV8PR01MB8429:EE_ X-MS-Office365-Filtering-Correlation-Id: 588f9dc9-d12d-4a0f-8d33-08ddf61cf8e3 X-MS-Exchange-AtpMessageProperties: SA X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|376014|7416014|52116014|1800799024|38350700014|7053199007|921020; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?/DcPtZetTfQiqrtC2k/HS2Ceuog/Wu9b+VqXQK35siMFYat5lDPZ83qu4VZ3?= =?us-ascii?Q?wNYrJmrbd472HmZm59K3e1ioYW30cGpiNuRUiVHApxg2eIHD+DmXhU5b/TRa?= =?us-ascii?Q?A250F6IiU59paWsOHGtmXmqqaYaGrdQ+26zLtgsbGYtsMXiryvmOh0+HTBKd?= =?us-ascii?Q?dGURHUFHmMpTk7uWnunqpQBVTi/Gt4L+OkhUHxm52fc3wG5NXLZgL0jwOZwE?= =?us-ascii?Q?SxG8KlOYi+gFI2BjszVPB35NEKPEqN/vr9t7q+Y4R25OUxu+2rCpLfd5HUyX?= =?us-ascii?Q?9A0rX7oyYicUXenybcWrWclKkVM8AKgdmSskeEtJVA+8Ecs4baMDn9WnjX9x?= =?us-ascii?Q?kvn7SkYWN3oVa2ecDrMLwZrj/6S4sjbkobOF1KCVt2etP7miUe/cEiyDccS5?= =?us-ascii?Q?IzIiNG+ONu7VAsYDQNwuLljbCYPnDMekxW+3lpY2hRmx3YZ6M3tHU3ACunZH?= =?us-ascii?Q?z1SJvd7AiBYihPDxO1NfF75BoVgFgGM8/AY+RmyP9rUH+ddxguMOcBwKHqGv?= =?us-ascii?Q?+5rj3Ak3J+Sv7OWZ+vGEOdcp5mnXUMVQCJb3R8T7TJRh++amEdh6FD5agwRs?= =?us-ascii?Q?2gYuYReegAuYN5TipWnKozauOOnD92RpuDyQkGiC4pZhP3Fpox5npAvb1gKp?= =?us-ascii?Q?8pXsl/JJibwvtKDBWZbtSeoSpidTuqmfIKUqsiePgYaXOq2hpUIW4gkfw9l4?= =?us-ascii?Q?+QRmDF2tUWV8B6QdNsXCV0Q7HAQGkmo6u8vljppY+Jbc6awlKQ8pWp9oy0NI?= =?us-ascii?Q?XRqRBuL/knAo6e8oERnMDhE8qincrg2dn+ssc/IQRwB6Bw1KSx87XhEIppTb?= =?us-ascii?Q?EyWXVY3a4i8zroTpyW6l0SWU5aChjXvpUHlGfOES+7CXOZ6i7IKmyNEufaMm?= =?us-ascii?Q?OzoCJkhGPPY9dECN8TizLDTmLqjXwifGY9GQFVRwYx0gfg6D/tp6tRB6qQV3?= =?us-ascii?Q?Bab3FHBys0VVAFevctkuz4vZ4fvxriqUNK+bY/xOtDxkIhbg+VWefyxmiJ3O?= =?us-ascii?Q?JKxpj3ambUWp+BEYzfdcDjyZJLkF52bo//mubtrTu+avPdvNbJbe97hw7Fdw?= =?us-ascii?Q?8LpvkA/4Js6mAUdk07qjJqCmUcioHqxI0eq1hPzi1I42cTybOHNVAJkJtX9b?= =?us-ascii?Q?Y0waVQgamDtdOJ52tyxknLrhmpc9JArxh7wGeG82+k3H2znNZSX6WGyUUQph?= =?us-ascii?Q?s41z616VOYZDMIkglwCgh1TnS3eumgxK6MROdHYSlFFxc64BqIJ6kGF3/FU1?= =?us-ascii?Q?WmuDO4GPwlLEs2JuCxNbjBTvFDLoRdyE+En6r97L3BexRHJ/rP7dZ5PHMjqj?= =?us-ascii?Q?H9MvI0u1bSpRNzr7itddHGpHr+dumBgGvHpHiH3tXtOoq5B7yLAcflgMaFdL?= =?us-ascii?Q?OeMXCwLCv+u8J7ktNnfbpZ0W6yAVH9xaIILpjdwhbL5d2BmcxqyjgmtFvnBS?= =?us-ascii?Q?oUwkqHsAd+mnmyDuAmLfKl5RoJqroHCT1L0QFv2cWamfCK4pGGzYyFzOmDAT?= =?us-ascii?Q?gpLGfkbZDureSEc=3D?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:CH0PR01MB6873.prod.exchangelabs.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(376014)(7416014)(52116014)(1800799024)(38350700014)(7053199007)(921020);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?/IM4uC4bX1J50jvU5a883V5Kq0hwSm0sO8Qdrynct9QPGEKeiKx2f+3pu1x+?= =?us-ascii?Q?GRVmhOAY+dh5nP2DN467m9gC1UJ4ktu0wtDHFdzS99fPnlFUcT6GIqz88Ebs?= =?us-ascii?Q?p+aElCRtW71x8mZv4d5WIpLFY5RGVSktWDjgNWv0xpw/z9woPQRcSnTeFSSj?= =?us-ascii?Q?Fkzx+CsGiyvSlVQcU72/WpZEVaLoqyuwdWurrCKjL9uO2cjhjOI7nxRpU7H0?= =?us-ascii?Q?MoUpT8OG6tHnt7LcnJmxtnAKIEEqDgL4IkspQ1dQERzkZc5dNTnQkMHuxTdR?= =?us-ascii?Q?cHl1chcGjRFVkkz4yTH0LmU66WdMF6yXUcGIqPtlx2wBJ+cKb/l4XDBytgFh?= =?us-ascii?Q?xJP4scOnR7yU70YY6NO0imuiSYgor0RTL2G0pp40w5oz6KRacq1IlbyXQU8m?= =?us-ascii?Q?+dYnk4jcngOXfrGFznDudAOQtJzq1uFr0jeuRjaIzpPlwgptOIyD4f+mriwJ?= =?us-ascii?Q?X/FVe4RijH7Al5qk6Tz+/EYr5wIzbV4UqcxkFuK33g7PWwRNcTeSp8cso3lr?= =?us-ascii?Q?Blzcv3naMjnifn3/ebj4j+XkXU2Au3+ZR011qMu0VMBy2R7Kn0Q2V2SdYfC8?= =?us-ascii?Q?R02TzbT5iOse/2wAZc+hZ24SVIbDYsclBnYjtFvVUeoQqMFlD1FuC2q8ZKp2?= =?us-ascii?Q?p8DAb250dfvBoecsFX5nAZX/FS9Iz/68g9kh+bkEueWBiElFYg9p2GAWG9CS?= =?us-ascii?Q?7xLL6B0ROLoC2QvhkH+hk+fkU//cCeNGtmtFf1Usb9HFR8tLalErHFvVQqQn?= =?us-ascii?Q?Sx6vu4cyQIir7Qg8ES3BXHAb1JPxoBDT3Ce6hOV7aelL/QU7TR5whPJBCWXJ?= =?us-ascii?Q?9toMTspQ8YxslnIf03I7Z7xFWhifPLNJSLAcB1B9FLO3GhHg3pEt6kgFMaZI?= =?us-ascii?Q?EL/PokCqivLf5kWag2pviwMd17ERizuMQSBn03gQeFihavJoX5ak1/NVGS+D?= =?us-ascii?Q?uFaCbVO1XaHOiuPbhmE2yPi5YM78MjDeLFqWP6NYw7fLWD1ULRJRfvb2My2b?= =?us-ascii?Q?O4RNyvrxJGgKrsC+mzImYYmyo+PgJhjlXlmqlqw8+WUqhrBxOgeNREVDHs9M?= =?us-ascii?Q?KFVh4Qy4rG9+0SyqlvGuxAp8p2AqGx1oUZMf/pp9301Nh+Jh8xK8yxzigViz?= =?us-ascii?Q?jSzWZ8Mf8cAXX84diwp/e9XJOhlZwaM9xTyvDGYlzyTRMoI2eUq+Qxfk/Yey?= =?us-ascii?Q?EoDSltGQ3ALJWzHoW1dtWOBjHu36rGNPAMThdPQXF8XwePdcadrcgUfk4J9B?= =?us-ascii?Q?0mGaX++9wUHbHLAlbNLIudj1JIe+jMGr90zEGHd3++1C54tSp+DGu3ifKFuz?= =?us-ascii?Q?zBmx84AYgmp0HjE1sfFI34jACrayEeKKuHTZ0kGnq1uxxMQvlYLBwAiZQ0Nk?= =?us-ascii?Q?i/WPrSD0uZ9OfygaZJFfaMNN+EbJOJveH5E472mKlkQDiXT9ftEyQ3fN32ml?= =?us-ascii?Q?YpWB7mObNYjhURa/jsp9liidFo/YJhrWWdJ/DrTGNMkgwOpGGsnD0l/wkPLo?= =?us-ascii?Q?NAn+0kb0BGtSUMkfVlz86HXmZQOtedQlDCOp96cUeKkf+1lZGfYiEn86JCjP?= =?us-ascii?Q?VZUhrNeiAZxfnS2CWer1CxZMC8fJzkN0Vo5OAJ0YfIgUsi9b6YXtOjhJM2sI?= =?us-ascii?Q?TgRM0aKv95SpwK2WS3kjf3o=3D?= X-OriginatorOrg: os.amperecomputing.com X-MS-Exchange-CrossTenant-Network-Message-Id: 588f9dc9-d12d-4a0f-8d33-08ddf61cf8e3 X-MS-Exchange-CrossTenant-AuthSource: CH0PR01MB6873.prod.exchangelabs.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Sep 2025 19:04:09.4669 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3bc2b170-fd94-476d-b0ce-4229bdc904a7 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: C6gN9tXXlvBanIQLcbY3WOguwznL9drqS7lKs4R92CRaV35xNhAHnIfUeuuJe8M+BuBAq2RXGN+DzUmhpnu9ujSDu2PG0J0EGia63qG3lbI= X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV8PR01MB8429 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250917_120413_696315_83F3F393 X-CRM114-Status: UNSURE ( 9.35 ) X-CRM114-Notice: Please train this message. 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org AmpereOne supports BBML2 without conflict abort, add to the allow list. Reviewed-by: Christoph Lameter (Ampere) Reviewed-by: Ryan Roberts Acked-by: Catalin Marinas Signed-off-by: Yang Shi --- arch/arm64/kernel/cpufeature.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index ef269a5a37e1..ba07eeff2a8d 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -2235,6 +2235,8 @@ static bool has_bbml2_noabort(const struct arm64_cpu_capabilities *caps, int sco static const struct midr_range supports_bbml2_noabort_list[] = { MIDR_REV_RANGE(MIDR_CORTEX_X4, 0, 3, 0xf), MIDR_REV_RANGE(MIDR_NEOVERSE_V3, 0, 2, 0xf), + MIDR_ALL_VERSIONS(MIDR_AMPERE1), + MIDR_ALL_VERSIONS(MIDR_AMPERE1A), {} }; -- 2.47.0