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Shenoy" , "Mario Limonciello" , Perry Yuan , , , , , "Shyam Sundar S K" , Perry Yuan Subject: [PATCH v6 06/12] platform/x86: hfi: init per-cpu scores for each class Date: Mon, 4 Nov 2024 11:54:01 -0600 Message-ID: <20241104175407.19546-7-mario.limonciello@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241104175407.19546-1-mario.limonciello@amd.com> References: <20241104175407.19546-1-mario.limonciello@amd.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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: SJ1PEPF00002312:EE_|MW4PR12MB7167:EE_ X-MS-Office365-Filtering-Correlation-Id: 47cd4d36-f274-43ff-dcdf-08dcfcf9c3f9 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|36860700013|82310400026|376014|1800799024; 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)(36860700013)(82310400026)(376014)(1800799024); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Nov 2024 17:54:44.3193 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 47cd4d36-f274-43ff-dcdf-08dcfcf9c3f9 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: SJ1PEPF00002312.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR12MB7167 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 708d7d18fe2f2..9bdd9d9a615b8 100644 --- a/drivers/platform/x86/amd/hfi/hfi.c +++ b/drivers/platform/x86/amd/hfi/hfi.c @@ -113,6 +113,8 @@ 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; @@ -226,6 +228,31 @@ static int amd_hfi_alloc_class_data(struct platform_device *pdev) return 0; } +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) { @@ -311,6 +338,10 @@ static int amd_hfi_probe(struct platform_device *pdev) if (ret) return ret; + ret = update_hfi_ipcc_scores(); + if (ret) + return ret; + return 0; }