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h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=93mFFL37UWEreuoxsuCgjzGv/0KWiWMS2KGPmS4EzyY=; b=050QCEvHZcvX3U+EgOE6nmGnxThJFlGVfEqI0DwP5X6VAxIbCXFIqNDMDa/wDklWbBxFvVVMWjy2ED9s0BT7eqnJj3nJDyLiHK8VXQwUIwQc4rkyVlNefblL5qrw82rZ5O21fOE4vFJXDp29ZhThugBSBs59VgwyhYyjeRY4d/s= X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C From: Penny Zheng To: CC: , Penny Zheng , Jan Beulich Subject: [PATCH v5 07/18] xen/cpufreq: disable px statistic info in amd-cppc mode Date: Tue, 27 May 2025 16:48:22 +0800 Message-ID: <20250527084833.338427-8-Penny.Zheng@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250527084833.338427-1-Penny.Zheng@amd.com> References: <20250527084833.338427-1-Penny.Zheng@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ5PEPF000001F6:EE_|DS7PR12MB6240:EE_ X-MS-Office365-Filtering-Correlation-Id: 026dcc5b-e27c-48a9-f7df-08dd9cfb60d6 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|82310400026|1800799024|36860700013; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 May 2025 08:49:23.0639 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 026dcc5b-e27c-48a9-f7df-08dd9cfb60d6 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SJ5PEPF000001F6.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS7PR12MB6240 X-ZohoMail-DKIM: pass (identity @amd.com) X-ZM-MESSAGEID: 1748335795211116600 Content-Type: text/plain; charset="utf-8" We want to bypass construction of px statistic info, while not bypassing cpufreq_statistic_lock initialization for a good reason, in cpufreq_statistic_init() for amd-cppc mode, as P-states is not necessary th= ere. Signed-off-by: Penny Zheng Acked-by: Jan Beulich --- v3 -> v4: - remove unnecessary stub for cpufreq_statistic_exit() --- v4 -> v5: - refactor commit message --- xen/drivers/cpufreq/utility.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/xen/drivers/cpufreq/utility.c b/xen/drivers/cpufreq/utility.c index e690a484f1..b35e2eb1b6 100644 --- a/xen/drivers/cpufreq/utility.c +++ b/xen/drivers/cpufreq/utility.c @@ -98,6 +98,9 @@ int cpufreq_statistic_init(unsigned int cpu) if ( !pmpt ) return -EINVAL; =20 + if ( !(pmpt->init & XEN_PX_INIT) ) + return 0; + spin_lock(cpufreq_statistic_lock); =20 pxpt =3D per_cpu(cpufreq_statistic_data, cpu); --=20 2.34.1