Received: by 2002:a05:7412:e794:b0:fa:551:50a7 with SMTP id o20csp2176963rdd; Fri, 12 Jan 2024 01:28:19 -0800 (PST) X-Google-Smtp-Source: AGHT+IFsYDNJ+2sdeK0rPZx//PFECKmx7Zn9BeoWHfaYKZoKkWk29JyxH+IQjMBllCPpN9XBOWUW X-Received: by 2002:a25:dfcd:0:b0:dbe:d53e:757d with SMTP id w196-20020a25dfcd000000b00dbed53e757dmr477908ybg.47.1705051699218; Fri, 12 Jan 2024 01:28:19 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1705051699; cv=pass; d=google.com; s=arc-20160816; b=IElKZHsf5RWpAZM3jFMIXptFIX9xX6/tIMuVxyC4EBElTfPvImzak2XsqEdWNBvUlY Se0dbhY8qufb5Y5/2Yy9P0Xw43bYhRTrLXHCACd4qor62STlh0n1ipUNT1QyEnCmZMzj cVO3PPu26tBbAVVOV2k4hh0t5Ioxwe1Ip1av7OQxkfcIZ3VlGvX3Q/JOzKfyaYMtc8v3 BLHJLbW1mqJkU8gsRMKO0a3J4ZQeJ/mxV+rkf7Dctg6L2Uuh3LpSA49AFGcJ9+tKwFnR Q2mra5/tjRhPbCkAN42X6h2+Vbq7n1XpS8SuftWqokz6j1T6WqudjcxzRM39rbL+hSvN mVog== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:in-reply-to:message-id :date:subject:cc:to:from:dkim-signature; bh=fX2Ta/Gv798M7peRlFChK9xqESpeKi5VXhhwayFgnPw=; fh=pdjV0NPE8OZoZBx2M8aim9FZCatuc1gLLlAf1G+JhNs=; b=l9NKNuMTBnLgjnEeyypD8nnZYP8M7vKUDff67658nj0nt1HmdQ+k1cNHjj+h0AO4tr bip+uJmUbAT8ApqPw01OOYm8VoUO9ZVcag3YgINdvF28Kgkg95bShEvSUY/UQllqdN3R 5UYUEcmqkEpqJZ3zguOBGsAMKfCtWTpzBLsP4qod2vley5rwCOGiMT7zzHKwwCNDnMZc NXg5Ub8A38V5FvM2sM/GRFCGgNZput3KixQ7cPC1F78CvR/H6TY9ZrVqDIk+nC8Htzz7 KV6OaM28bZ0CXqulMyzXw8LPLzrhRiLeN5ugXbJzpqq5zDoYT36FaMxbS6iuVmxs1scl Y8zg== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@amd.com header.s=selector1 header.b=Iqf1X4UO; arc=pass (i=1 spf=pass spfdomain=amd.com dmarc=pass fromdomain=amd.com); spf=pass (google.com: domain of linux-kernel+bounces-24478-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) smtp.mailfrom="linux-kernel+bounces-24478-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=amd.com Return-Path: Received: from sv.mirrors.kernel.org (sv.mirrors.kernel.org. [139.178.88.99]) by mx.google.com with ESMTPS id 5-20020a630105000000b005cdf9a1eca3si2982592pgb.228.2024.01.12.01.28.18 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Jan 2024 01:28:19 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-24478-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) client-ip=139.178.88.99; Authentication-Results: mx.google.com; dkim=pass header.i=@amd.com header.s=selector1 header.b=Iqf1X4UO; arc=pass (i=1 spf=pass spfdomain=amd.com dmarc=pass fromdomain=amd.com); spf=pass (google.com: domain of linux-kernel+bounces-24478-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) smtp.mailfrom="linux-kernel+bounces-24478-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=amd.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sv.mirrors.kernel.org (Postfix) with ESMTPS id D1B3D2863A3 for ; Fri, 12 Jan 2024 09:28:18 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id C0C245DF3A; Fri, 12 Jan 2024 09:26:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="Iqf1X4UO" Received: from NAM10-BN7-obe.outbound.protection.outlook.com (mail-bn7nam10on2056.outbound.protection.outlook.com [40.107.92.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 05C3D5DF32; Fri, 12 Jan 2024 09:26:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=amd.com ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=exytUt1xftiXhkyHV9ftWsCUGF4k6emydwSj/jvxvJRqmLO9A0PsxUrwYL4no5SSlJTw55QT4AsmNRdqcYz/ai0xiItcRPVxqr7vqhbfhm3dPmVLsErXS0Suo3m9OOOwNkDj75ltvOIDlGMgD821KalLKyw75NqqY0yTWTQoTc7sURK1k4EsTwb2YWyysMuAwSLjdACVxSrp6Z5V5RMDVEoNkSaSRFqJIL7U+koqDpfeaXxmfXYbqVyZNxG9dXQ0RQ6slkwdAXSTR0y5RYpAyvOOfAGKN26zNA4ewMtuatvIyF3E+kUn9ctEe9grFMsa/xlTC48GyPLKlpF5RATguA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=fX2Ta/Gv798M7peRlFChK9xqESpeKi5VXhhwayFgnPw=; b=hEjiBCuS9mBdgTGC8GTVmReKDFuNH4PfUjQOATyMYjJVeZic2Rg6ALodeYvT1CXxrACQpu3eZTaEs/AetEFJuHmO04rMJ5c1jru2vSIeQSsWJ1gNYpTua4Fe+YgA6P47We6iMW9P0sdN+FouHGmYoXLUBhJPw+Y/KoAY7Ji7O2KZmeOdJHJPWNfdlRUkoQF2tQEmjkmPAgElc+0wAfrt6Xf6cdmazE+1osZxnfHvQ5Yrqy8xF5rPL141bjk5AKh5cIlN2zxm5D5ysfo9E+ZyEv/gmmBKjGZ9l37zBc/agLGEOyQtko2joZ1SW4pRD3h7VPg60rY2150B8W98S6n5Rw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=intel.com smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=fX2Ta/Gv798M7peRlFChK9xqESpeKi5VXhhwayFgnPw=; b=Iqf1X4UOCDZagrj/7NYPxuXT6jK7M1Luu9sGDZoXYN3/sk/QJA/wfcv6S/Qd+b7DdMTQYWWq3XnXD2nxcL+bPpoKIestQ0xif4tu2TUfwS4qAq/EQniR4V2M14A9jqoj9rIDwdk/cD5Nt/0fcmIyYg3m90NPnAcESHwH1GDvMDw= Received: from DM6PR03CA0035.namprd03.prod.outlook.com (2603:10b6:5:40::48) by CH3PR12MB9429.namprd12.prod.outlook.com (2603:10b6:610:1c9::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7181.21; Fri, 12 Jan 2024 09:26:17 +0000 Received: from DS1PEPF00017091.namprd03.prod.outlook.com (2603:10b6:5:40:cafe::63) by DM6PR03CA0035.outlook.office365.com (2603:10b6:5:40::48) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7181.18 via Frontend Transport; Fri, 12 Jan 2024 09:26:17 +0000 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 (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 Received: from SATLEXMB04.amd.com (165.204.84.17) by DS1PEPF00017091.mail.protection.outlook.com (10.167.17.133) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7181.14 via Frontend Transport; Fri, 12 Jan 2024 09:26:17 +0000 Received: from jasmine-meng.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.34; Fri, 12 Jan 2024 03:26:11 -0600 From: Meng Li To: "Rafael J . Wysocki" , Borislav Petkov , Huang Rui CC: , , , , Shuah Khan , , "Nathan Fontenot" , Deepak Sharma , Alex Deucher , Mario Limonciello , Shimmer Huang , "Perry Yuan" , Xiaojian Du , Viresh Kumar , Borislav Petkov , "Oleksandr Natalenko" , Meng Li , Wyes Karny , Perry Yuan Subject: [PATCH V13 5/7] cpufreq: amd-pstate: Update amd-pstate preferred core ranking dynamically Date: Fri, 12 Jan 2024 17:25:29 +0800 Message-ID: <20240112092531.789841-6-li.meng@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240112092531.789841-1-li.meng@amd.com> References: <20240112092531.789841-1-li.meng@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain 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: DS1PEPF00017091:EE_|CH3PR12MB9429:EE_ X-MS-Office365-Filtering-Correlation-Id: 5efb09fd-cc5a-4e33-4b60-08dc13508780 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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:(13230031)(4636009)(346002)(39860400002)(376002)(396003)(136003)(230922051799003)(451199024)(64100799003)(82310400011)(186009)(1800799012)(36840700001)(46966006)(40470700004)(7696005)(6666004)(478600001)(426003)(336012)(26005)(1076003)(16526019)(2616005)(6636002)(316002)(36756003)(8936002)(8676002)(70586007)(70206006)(54906003)(110136005)(356005)(81166007)(82740400003)(83380400001)(47076005)(86362001)(4326008)(36860700001)(5660300002)(15650500001)(7416002)(2906002)(41300700001)(66899024)(40480700001)(40460700003)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Jan 2024 09:26:17.0630 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 5efb09fd-cc5a-4e33-4b60-08dc13508780 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: DS1PEPF00017091.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR12MB9429 Preferred core rankings can be changed dynamically by the platform based on the workload and platform conditions and accounting for thermals and aging. When this occurs, cpu priority need to be set. Tested-by: Oleksandr Natalenko Reviewed-by: Mario Limonciello Reviewed-by: Wyes Karny Reviewed-by: Huang Rui Reviewed-by: Perry Yuan Signed-off-by: Meng Li --- drivers/cpufreq/amd-pstate.c | 52 ++++++++++++++++++++++++++++++++++++ include/linux/amd-pstate.h | 6 +++++ 2 files changed, 58 insertions(+) diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c index 9c2790753f99..3034b8ff3f8e 100644 --- a/drivers/cpufreq/amd-pstate.c +++ b/drivers/cpufreq/amd-pstate.c @@ -315,6 +315,7 @@ static int pstate_init_perf(struct amd_cpudata *cpudata) WRITE_ONCE(cpudata->nominal_perf, AMD_CPPC_NOMINAL_PERF(cap1)); WRITE_ONCE(cpudata->lowest_nonlinear_perf, AMD_CPPC_LOWNONLIN_PERF(cap1)); WRITE_ONCE(cpudata->lowest_perf, AMD_CPPC_LOWEST_PERF(cap1)); + WRITE_ONCE(cpudata->prefcore_ranking, AMD_CPPC_HIGHEST_PERF(cap1)); WRITE_ONCE(cpudata->min_limit_perf, AMD_CPPC_LOWEST_PERF(cap1)); return 0; } @@ -339,6 +340,7 @@ static int cppc_init_perf(struct amd_cpudata *cpudata) WRITE_ONCE(cpudata->lowest_nonlinear_perf, cppc_perf.lowest_nonlinear_perf); WRITE_ONCE(cpudata->lowest_perf, cppc_perf.lowest_perf); + WRITE_ONCE(cpudata->prefcore_ranking, cppc_perf.highest_perf); WRITE_ONCE(cpudata->min_limit_perf, cppc_perf.lowest_perf); if (cppc_state == AMD_PSTATE_ACTIVE) @@ -785,6 +787,40 @@ static void amd_pstate_init_prefcore(struct amd_cpudata *cpudata) schedule_work(&sched_prefcore_work); } +static void amd_pstate_update_limits(unsigned int cpu) +{ + struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); + struct amd_cpudata *cpudata = policy->driver_data; + u32 prev_high = 0, cur_high = 0; + int ret; + bool highest_perf_changed = false; + + mutex_lock(&amd_pstate_driver_lock); + if ((!amd_pstate_prefcore) || (!cpudata->hw_prefcore)) + goto free_cpufreq_put; + + ret = amd_pstate_get_highest_perf(cpu, &cur_high); + if (ret) + goto free_cpufreq_put; + + prev_high = READ_ONCE(cpudata->prefcore_ranking); + if (prev_high != cur_high) { + highest_perf_changed = true; + WRITE_ONCE(cpudata->prefcore_ranking, cur_high); + + if (cur_high < CPPC_MAX_PERF) + sched_set_itmt_core_prio((int)cur_high, cpu); + } + +free_cpufreq_put: + cpufreq_cpu_put(policy); + + if (!highest_perf_changed) + cpufreq_update_policy(cpu); + + mutex_unlock(&amd_pstate_driver_lock); +} + static int amd_pstate_cpu_init(struct cpufreq_policy *policy) { int min_freq, max_freq, nominal_freq, lowest_nonlinear_freq, ret; @@ -958,6 +994,17 @@ static ssize_t show_amd_pstate_highest_perf(struct cpufreq_policy *policy, return sysfs_emit(buf, "%u\n", perf); } +static ssize_t show_amd_pstate_prefcore_ranking(struct cpufreq_policy *policy, + char *buf) +{ + u32 perf; + struct amd_cpudata *cpudata = policy->driver_data; + + perf = READ_ONCE(cpudata->prefcore_ranking); + + return sysfs_emit(buf, "%u\n", perf); +} + static ssize_t show_amd_pstate_hw_prefcore(struct cpufreq_policy *policy, char *buf) { @@ -1176,6 +1223,7 @@ cpufreq_freq_attr_ro(amd_pstate_max_freq); cpufreq_freq_attr_ro(amd_pstate_lowest_nonlinear_freq); cpufreq_freq_attr_ro(amd_pstate_highest_perf); +cpufreq_freq_attr_ro(amd_pstate_prefcore_ranking); cpufreq_freq_attr_ro(amd_pstate_hw_prefcore); cpufreq_freq_attr_rw(energy_performance_preference); cpufreq_freq_attr_ro(energy_performance_available_preferences); @@ -1186,6 +1234,7 @@ static struct freq_attr *amd_pstate_attr[] = { &amd_pstate_max_freq, &amd_pstate_lowest_nonlinear_freq, &amd_pstate_highest_perf, + &amd_pstate_prefcore_ranking, &amd_pstate_hw_prefcore, NULL, }; @@ -1194,6 +1243,7 @@ static struct freq_attr *amd_pstate_epp_attr[] = { &amd_pstate_max_freq, &amd_pstate_lowest_nonlinear_freq, &amd_pstate_highest_perf, + &amd_pstate_prefcore_ranking, &amd_pstate_hw_prefcore, &energy_performance_preference, &energy_performance_available_preferences, @@ -1538,6 +1588,7 @@ static struct cpufreq_driver amd_pstate_driver = { .suspend = amd_pstate_cpu_suspend, .resume = amd_pstate_cpu_resume, .set_boost = amd_pstate_set_boost, + .update_limits = amd_pstate_update_limits, .name = "amd-pstate", .attr = amd_pstate_attr, }; @@ -1552,6 +1603,7 @@ static struct cpufreq_driver amd_pstate_epp_driver = { .online = amd_pstate_epp_cpu_online, .suspend = amd_pstate_epp_suspend, .resume = amd_pstate_epp_resume, + .update_limits = amd_pstate_update_limits, .name = "amd-pstate-epp", .attr = amd_pstate_epp_attr, }; diff --git a/include/linux/amd-pstate.h b/include/linux/amd-pstate.h index 68fc1bd8d851..d21838835abd 100644 --- a/include/linux/amd-pstate.h +++ b/include/linux/amd-pstate.h @@ -39,11 +39,16 @@ struct amd_aperf_mperf { * @cppc_req_cached: cached performance request hints * @highest_perf: the maximum performance an individual processor may reach, * assuming ideal conditions + * For platforms that do not support the preferred core feature, the + * highest_pef may be configured with 166 or 255, to avoid max frequency + * calculated wrongly. we take the fixed value as the highest_perf. * @nominal_perf: the maximum sustained performance level of the processor, * assuming ideal operating conditions * @lowest_nonlinear_perf: the lowest performance level at which nonlinear power * savings are achieved * @lowest_perf: the absolute lowest performance level of the processor + * @prefcore_ranking: the preferred core ranking, the higher value indicates a higher + * priority. * @max_freq: the frequency that mapped to highest_perf * @min_freq: the frequency that mapped to lowest_perf * @nominal_freq: the frequency that mapped to nominal_perf @@ -73,6 +78,7 @@ struct amd_cpudata { u32 nominal_perf; u32 lowest_nonlinear_perf; u32 lowest_perf; + u32 prefcore_ranking; u32 min_limit_perf; u32 max_limit_perf; u32 min_limit_freq; -- 2.34.1