From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7E157C433FE for ; Fri, 29 Oct 2021 13:05:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6B6A061165 for ; Fri, 29 Oct 2021 13:05:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232053AbhJ2NHy (ORCPT ); Fri, 29 Oct 2021 09:07:54 -0400 Received: from mail-mw2nam12on2063.outbound.protection.outlook.com ([40.107.244.63]:56704 "EHLO NAM12-MW2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S232013AbhJ2NHX (ORCPT ); Fri, 29 Oct 2021 09:07:23 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=GINBYcMsbIHYMrqJpKXu7y13ckp0nMqsNMsxysJVqwWy9zKZV/zOP7X49fdEXpnsa1VhP+pjIdELbnIioN7A41Vvq6doKjdZDeKxOQmpHz12aH6LSz/J7icxQIDTMnRyyn67rFOiF7K0IWr1DlpSs/7hU2fAVI3KaMsKZpzy4mAn4jH6KO5sXBlTTtimkXRRkzQ0w+aXXBbUWD9Br7dh5a9+j7Jn2cI3if9TKcfWobnN8fye97Sd5OkjvXctxJ2212cdKByVEsrp+LTwAFkvRDVtEe8t0RWSxqRvaZxOwtmJwKUoNx8KGV6PkTb+VKagkYUozljzQKhN3tUKvf9Xeg== 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=HxosAJiN+PnNwCcHHDg5g7DhiiraCgyGkLTkbHS4TpY=; b=aLYGqqRk2fGSWaiLk/LLxLwP9ysdxLN0XWMTLMcgKvC2PSpMjSKnYtWC7lYeokww+vwKU7J603z49dQGwZ9LsA7tmTTC33UYIpGhrG8vcJrOYBWJsxr3bOB/aLG04gthKDbCcEa/Y0j2NYTMKTvc0cIfMdE0aX5j+ccRPQzYBmxFE4iy1K0ie8Rdf26FY8/TCBDepVtqBq+QTLxzKS6SHDqfhYjdP4M8wV4s3Ky7igjRF/Qw/JFZZS9iUkokeNZgpKUuFrxhpiVaAsSGkZ1fUi4vaaLioTANCiWV/bju1z5q0et7SMMpcZkUuqlvFZXN5/FF1HMUAyImiQcUFuJXfg== 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 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=HxosAJiN+PnNwCcHHDg5g7DhiiraCgyGkLTkbHS4TpY=; b=jtX3+6AIAkoP82N2q+6FiEm9WhqLcjiy92dfFpUMDfrURCLxc3C+dKkBI30AB5KILXtk2toaTQY9qjWWtX2K37NQPnx1Qgk+6rmiCNvRAxlXVcXoZ2fZnoX0ZoXGYPZAEL1qzrXgz3aeG17Dz04wbEIV7977n4QZlQpBEEeXL30= Received: from BN9PR03CA0677.namprd03.prod.outlook.com (2603:10b6:408:10e::22) by BN8PR12MB3347.namprd12.prod.outlook.com (2603:10b6:408:43::32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4649.14; Fri, 29 Oct 2021 13:04:45 +0000 Received: from BN8NAM11FT061.eop-nam11.prod.protection.outlook.com (2603:10b6:408:10e:cafe::5b) by BN9PR03CA0677.outlook.office365.com (2603:10b6:408:10e::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4649.13 via Frontend Transport; Fri, 29 Oct 2021 13:04:45 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; intel.com; dkim=none (message not signed) header.d=none;intel.com; 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; Received: from SATLEXMB04.amd.com (165.204.84.17) by BN8NAM11FT061.mail.protection.outlook.com (10.13.177.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.4649.14 via Frontend Transport; Fri, 29 Oct 2021 13:04:45 +0000 Received: from hr-amd.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 15.1.2308.15; Fri, 29 Oct 2021 08:04:40 -0500 From: Huang Rui To: "Rafael J . Wysocki" , Viresh Kumar , Shuah Khan , "Borislav Petkov" , Peter Zijlstra , Ingo Molnar , Giovanni Gherdovich , CC: Deepak Sharma , Alex Deucher , Mario Limonciello , Steven Noonan , Nathan Fontenot , Jinzhou Su , Xiaojian Du , , , Huang Rui Subject: [PATCH v3 18/21] cpupower: enable boost state support for amd-pstate module Date: Fri, 29 Oct 2021 21:02:38 +0800 Message-ID: <20211029130241.1984459-19-ray.huang@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211029130241.1984459-1-ray.huang@amd.com> References: <20211029130241.1984459-1-ray.huang@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain 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-Office365-Filtering-Correlation-Id: 108ce025-2e4b-4aab-c267-08d99adcae4f X-MS-TrafficTypeDiagnostic: BN8PR12MB3347: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:7219; 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:(4636009)(36840700001)(46966006)(36860700001)(336012)(82310400003)(2616005)(86362001)(426003)(26005)(508600001)(36756003)(186003)(16526019)(83380400001)(8676002)(2906002)(54906003)(110136005)(316002)(8936002)(5660300002)(1076003)(7696005)(7416002)(4326008)(81166007)(356005)(70586007)(70206006)(47076005)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Oct 2021 13:04:45.7151 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 108ce025-2e4b-4aab-c267-08d99adcae4f 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: BN8NAM11FT061.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN8PR12MB3347 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The legacy ACPI hardware P-States function has 3 P-States on ACPI table, the CPU frequency only can be switched between the 3 P-States. While the processor supports the boost state, it will have another boost state that the frequency can be higher than P0 state, and the state can be decoded by the function of decode_pstates() and read by amd_pci_get_num_boost_states(). However, the new AMD P-States function is different than legacy ACPI hardware P-State on AMD processors. That has a finer grain frequency range between the highest and lowest frequency. And boost frequency is actually the frequency which is mapped on highest performance ratio. The similiar previous P0 frequency is mapped on nominal performance ratio. If the highest performance on the processor is higher than nominal performance, then we think the current processor supports the boost state. And it uses amd_pstate_boost_init() to initialize boost for AMD P-States function. Signed-off-by: Huang Rui --- tools/power/cpupower/utils/helpers/amd.c | 18 ++++++++++++++++++ tools/power/cpupower/utils/helpers/helpers.h | 5 +++++ tools/power/cpupower/utils/helpers/misc.c | 2 ++ 3 files changed, 25 insertions(+) diff --git a/tools/power/cpupower/utils/helpers/amd.c b/tools/power/cpupower/utils/helpers/amd.c index f233a6ab75ac..92b9fb631768 100644 --- a/tools/power/cpupower/utils/helpers/amd.c +++ b/tools/power/cpupower/utils/helpers/amd.c @@ -182,5 +182,23 @@ static unsigned long amd_pstate_get_data(unsigned int cpu, MAX_AMD_PSTATE_VALUE_READ_FILES); } +void amd_pstate_boost_init(unsigned int cpu, int *support, int *active) +{ + unsigned long highest_perf, nominal_perf, cpuinfo_min, + cpuinfo_max, amd_pstate_max; + + highest_perf = amd_pstate_get_data(cpu, AMD_PSTATE_HIGHEST_PERF); + nominal_perf = amd_pstate_get_data(cpu, AMD_PSTATE_NOMINAL_PERF); + + *support = highest_perf > nominal_perf ? 1 : 0; + if (!(*support)) + return; + + cpufreq_get_hardware_limits(cpu, &cpuinfo_min, &cpuinfo_max); + amd_pstate_max = amd_pstate_get_data(cpu, AMD_PSTATE_MAX_FREQ); + + *active = cpuinfo_max == amd_pstate_max ? 1 : 0; +} + /* AMD P-States Helper Functions ***************/ #endif /* defined(__i386__) || defined(__x86_64__) */ diff --git a/tools/power/cpupower/utils/helpers/helpers.h b/tools/power/cpupower/utils/helpers/helpers.h index e03cc97297aa..c03925bea655 100644 --- a/tools/power/cpupower/utils/helpers/helpers.h +++ b/tools/power/cpupower/utils/helpers/helpers.h @@ -140,6 +140,8 @@ extern int cpufreq_has_boost_support(unsigned int cpu, int *support, /* AMD P-States stuff **************************/ extern bool cpupower_amd_pstate_enabled(void); +extern void amd_pstate_boost_init(unsigned int cpu, + int *support, int *active); /* AMD P-States stuff **************************/ @@ -177,6 +179,9 @@ static inline int cpufreq_has_boost_support(unsigned int cpu, int *support, static inline bool cpupower_amd_pstate_enabled(void) { return false; } +static void amd_pstate_boost_init(unsigned int cpu, + int *support, int *active) +{ return; } /* cpuid and cpuinfo helpers **************************/ diff --git a/tools/power/cpupower/utils/helpers/misc.c b/tools/power/cpupower/utils/helpers/misc.c index 0c483cdefcc2..e0d3145434d3 100644 --- a/tools/power/cpupower/utils/helpers/misc.c +++ b/tools/power/cpupower/utils/helpers/misc.c @@ -41,6 +41,8 @@ int cpufreq_has_boost_support(unsigned int cpu, int *support, int *active, if (ret) return ret; } + } else if (cpupower_cpu_info.caps & CPUPOWER_CAP_AMD_PSTATE) { + amd_pstate_boost_init(cpu, support, active); } else if (cpupower_cpu_info.caps & CPUPOWER_CAP_INTEL_IDA) *support = *active = 1; return 0; -- 2.25.1