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Wysocki" , Len Brown , Viresh Kumar Cc: linux-pm@vger.kernel.org, SW Chen , Kevin Ko , Henry Tseng Subject: [PATCH v2 0/2] cpufreq: intel_pstate: Add scaling factor for Bartlett Lake P-core only SKUs Date: Fri, 8 May 2026 14:30:30 +0800 Message-ID: <20260508063032.3248602-1-henrytseng@qnap.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SG2PEPF000B66D0:EE_|TYSPR04MB7880:EE_ Content-Type: text/plain X-MS-Office365-Filtering-Correlation-Id: d23287a7-3f0a-4e35-c8ea-08deaccb7cb1 X-MS-Exchange-AtpMessageProperties: SA X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|82310400026|376014|36860700016|55112099003|13003099007|18002099003|56012099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:122.147.219.42;CTRY:TW;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail19.qnap.com;PTR:122-147-219-42.static.sparqnet.net;CAT:NONE;SFS:(13230040)(1800799024)(82310400026)(376014)(36860700016)(55112099003)(13003099007)(18002099003)(56012099003);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: e+lcqn1L5yZuunrssffvcfJZKr08/7P/0MLfqwTVPYltK/vSBZqgr2kgGxYQAYxc3xnoc38W1YGHdEEGnWLmttC+Z0CjCfscTgZ5Ha5r5L95XxeqgRZllSaF+TV+qI7/T8z22YqeySzWCHez4DDbBMH32DhC3RitNo8SLYMX2v2P3q+RWEvoCUusquUD0kjnaODH37mCcIWB3FLtv/hE6DRrwkabqfb3X9tdGMuN5fb1qafXZc5CnnIduFcrhQnRLYi22M8S0sF/LoZ/Oqo51ue2CEkXOtxaozlSp10O5lQBGnq4yL0ah3NdMGDUU0X2UufmGA8abYRh/ZLfKaeDhHMJ6XMphQAT1sBRrZH5ffT1GIm26ZmbMwYVPaJ82+kY2bo39XTK24Ru9Z2NLprPMAkKndgAosTVmf2b8241VcXt1DvxxcRFR/5QzUNlBLfM X-OriginatorOrg: qnap.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 May 2026 06:31:50.2150 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d23287a7-3f0a-4e35-c8ea-08deaccb7cb1 X-MS-Exchange-CrossTenant-Id: 6eba8807-6ef0-4e31-890c-a6ecfbb98568 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=6eba8807-6ef0-4e31-890c-a6ecfbb98568;Ip=[122.147.219.42];Helo=[mail19.qnap.com] X-MS-Exchange-CrossTenant-AuthSource: SG2PEPF000B66D0.apcprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: TYSPR04MB7880 On Bartlett Lake P-core only SKUs (e.g. Intel Core 9 273PE), cpuinfo_max_freq is reported as 7.0/7.3 GHz, exceeding the datasheet Max Turbo Frequency of 5.7 GHz. Root cause: hwp_get_cpu_scaling() returns 100000 (default core scaling) instead of the correct factor 78741. Patch 1 fixes a framework regression introduced by 9b18d536b124, where the registered hybrid_scaling_factor is bypassed for table-registered models not reporting X86_FEATURE_HYBRID_CPU. Patch 1 must apply before patch 2; the Bartlett Lake entry alone has no effect on these SKUs without the framework fix. Patch 2 adds Bartlett Lake to intel_hybrid_scaling_factor[] with HYBRID_SCALING_FACTOR_ADL. --- v2: - Reuse intel_hybrid_scaling_factor[] with HYBRID_SCALING_FACTOR_ADL instead of introducing a new intel_cppc_scaling_ids[] table and computing the scaling factor via CPPC at runtime. - Split into two patches: framework fix + Bartlett Lake entry. v1: - https://lore.kernel.org/linux-pm/20260506095157.1591221-1-henrytseng@qnap.com/ Henry Tseng (2): cpufreq: intel_pstate: Fix scaling for hybrid-capable CPUs not reporting hybrid cpufreq: intel_pstate: Use HYBRID_SCALING_FACTOR_ADL for Bartlett Lake drivers/cpufreq/intel_pstate.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) -- 2.43.0