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Thu, 18 Sep 2025 06:26:04 -0700 From: Shanker Donthineni To: Catalin Marinas , Will Deacon , CC: , Shanker Donthineni , Vikram Sethi Subject: [PATCH 2/2] arm64: cpufeature: Add Olympus MIDR to BBML2 allow list Date: Thu, 18 Sep 2025 08:25:48 -0500 Message-ID: <20250918132548.1141306-3-sdonthineni@nvidia.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250918132548.1141306-1-sdonthineni@nvidia.com> References: <20250918132548.1141306-1-sdonthineni@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NVConfidentiality: public Content-Transfer-Encoding: quoted-printable X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ1PEPF000023CC:EE_|DS0PR12MB8454:EE_ X-MS-Office365-Filtering-Correlation-Id: 2b03819b-721b-4a37-69b7-08ddf6b6f144 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|82310400026|36860700013; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Sep 2025 13:26:14.8409 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2b03819b-721b-4a37-69b7-08ddf6b6f144 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.233];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SJ1PEPF000023CC.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB8454 Content-Type: text/plain; charset="utf-8" The NVIDIA Olympus core supports BBML2 without conflict abort. Add its MIDR to the allow list to enable FEAT_BBM. Signed-off-by: Shanker Donthineni --- arch/arm64/kernel/cpufeature.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index bb6d82b2f7584..30f45af3b684e 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -2236,6 +2236,7 @@ static bool has_bbml2_noabort(const struct arm64_cpu_= capabilities *caps, int sco static const struct midr_range supports_bbml2_noabort_list[] =3D { MIDR_REV_RANGE(MIDR_CORTEX_X4, 0, 3, 0xf), MIDR_REV_RANGE(MIDR_NEOVERSE_V3, 0, 2, 0xf), + MIDR_ALL_VERSIONS(MIDR_NVIDIA_OLYMPUS), {} }; =20 --=20 2.25.1