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Shenoy" , "Mario Limonciello" , Perry Yuan , , , , , "Shyam Sundar S K" , Perry Yuan Subject: [PATCH v5 07/13] platform/x86: hfi: init per-cpu scores for each class Date: Sun, 27 Oct 2024 21:02:45 -0500 Message-ID: <20241028020251.8085-8-mario.limonciello@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241028020251.8085-1-mario.limonciello@amd.com> References: <20241028020251.8085-1-mario.limonciello@amd.com> Precedence: bulk X-Mailing-List: platform-driver-x86@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF00021F6F:EE_|PH7PR12MB5712:EE_ X-MS-Office365-Filtering-Correlation-Id: 8a9babae-8945-40a0-b929-08dcf6f4b197 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|82310400026|36860700013|376014; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(1800799024)(82310400026)(36860700013)(376014);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Oct 2024 02:03:19.1106 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8a9babae-8945-40a0-b929-08dcf6f4b197 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: BL02EPF00021F6F.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB5712 From: Perry Yuan Initialize per cpu score `amd_hfi_ipcc_scores` which store energy score and performance score data for each class. `Classic core` and `Dense core` are ranked according to those values as energy efficiency capability or performance capability. OS scheduler will pick cores from the ranking list on each class ID for the thread which provide the class id got from hardware feedback interface. Reviewed-by: Gautham R. Shenoy Signed-off-by: Perry Yuan Co-developed-by: Mario Limonciello Signed-off-by: Mario Limonciello --- drivers/platform/x86/amd/hfi/hfi.c | 31 ++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/drivers/platform/x86/amd/hfi/hfi.c b/drivers/platform/x86/amd/hfi/hfi.c index b5cfe20c11052..986ea056fa022 100644 --- a/drivers/platform/x86/amd/hfi/hfi.c +++ b/drivers/platform/x86/amd/hfi/hfi.c @@ -114,6 +114,8 @@ struct amd_hfi_cpuinfo { static DEFINE_PER_CPU(struct amd_hfi_cpuinfo, amd_hfi_cpuinfo) = {.class_index = -1}; +static DEFINE_MUTEX(hfi_cpuinfo_lock); + static int find_cpu_index_by_apicid(unsigned int target_apicid) { int cpu_index; @@ -234,6 +236,31 @@ static void amd_hfi_remove(struct platform_device *pdev) mutex_destroy(&dev->lock); } +static int amd_set_hfi_ipcc_score(struct amd_hfi_cpuinfo *hfi_cpuinfo, int cpu) +{ + for (int i = 0; i < hfi_cpuinfo->nr_class; i++) + WRITE_ONCE(hfi_cpuinfo->ipcc_scores[i], + hfi_cpuinfo->amd_hfi_classes[i].perf); + + return 0; +} + +static int update_hfi_ipcc_scores(void) +{ + int cpu; + int ret; + + for_each_present_cpu(cpu) { + struct amd_hfi_cpuinfo *hfi_cpuinfo = per_cpu_ptr(&amd_hfi_cpuinfo, cpu); + + ret = amd_set_hfi_ipcc_score(hfi_cpuinfo, cpu); + if (ret) + return ret; + } + + return 0; +} + static int amd_hfi_metadata_parser(struct platform_device *pdev, struct amd_hfi_data *amd_hfi_data) { @@ -317,6 +344,10 @@ static int amd_hfi_probe(struct platform_device *pdev) if (ret) return ret; + ret = update_hfi_ipcc_scores(); + if (ret) + return ret; + return 0; }