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Wysocki" , Viresh Kumar , Shuah Khan , "Borislav Petkov" , Ingo Molnar , CC: Deepak Sharma , Alex Deucher , Mario Limonciello , Nathan Fontenot , Jinzhou Su , Xiaojian Du , , , Huang Rui Subject: [PATCH 16/19] cpupower: enable boost state support for amd-pstate module Date: Wed, 8 Sep 2021 22:59:58 +0800 Message-ID: <20210908150001.3702552-17-ray.huang@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210908150001.3702552-1-ray.huang@amd.com> References: <20210908150001.3702552-1-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: 303113ca-3f45-439b-9a41-08d972d99d7b X-MS-TrafficTypeDiagnostic: DM5PR1201MB0203: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:4125; 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)(46966006)(36840700001)(70586007)(8676002)(8936002)(70206006)(316002)(54906003)(36756003)(426003)(6666004)(16526019)(186003)(110136005)(336012)(1076003)(2616005)(7696005)(5660300002)(26005)(81166007)(356005)(36860700001)(4326008)(82310400003)(86362001)(47076005)(508600001)(2906002)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Sep 2021 15:02:02.3609 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 303113ca-3f45-439b-9a41-08d972d99d7b 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: CO1NAM11FT018.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR1201MB0203 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The AMD P-state boost API is different from ACPI hardware P-states, so implement the support for amd-pstate kernel module. Signed-off-by: Huang Rui --- tools/power/cpupower/lib/cpufreq.c | 20 ++++++++++++++++++++ tools/power/cpupower/lib/cpufreq.h | 3 +++ tools/power/cpupower/utils/helpers/misc.c | 7 +++++++ 3 files changed, 30 insertions(+) diff --git a/tools/power/cpupower/lib/cpufreq.c b/tools/power/cpupower/lib/cpufreq.c index 3f92ddadaad2..37da87bdcfb1 100644 --- a/tools/power/cpupower/lib/cpufreq.c +++ b/tools/power/cpupower/lib/cpufreq.c @@ -790,3 +790,23 @@ unsigned long cpufreq_get_transitions(unsigned int cpu) { return sysfs_cpufreq_get_one_value(cpu, STATS_NUM_TRANSITIONS); } + +int amd_pstate_boost_support(unsigned int cpu) +{ + unsigned int highest_perf, nominal_perf; + + highest_perf = sysfs_cpufreq_get_one_value(cpu, AMD_PSTATE_HIGHEST_PERF); + nominal_perf = sysfs_cpufreq_get_one_value(cpu, AMD_PSTATE_NOMINAL_PERF); + + return highest_perf > nominal_perf ? 1 : 0; +} + +int amd_pstate_boost_enabled(unsigned int cpu) +{ + unsigned int cpuinfo_max, amd_pstate_max; + + cpuinfo_max = sysfs_cpufreq_get_one_value(cpu, CPUINFO_MAX_FREQ); + amd_pstate_max = sysfs_cpufreq_get_one_value(cpu, AMD_PSTATE_MAX_FREQ); + + return cpuinfo_max == amd_pstate_max ? 1 : 0; +} diff --git a/tools/power/cpupower/lib/cpufreq.h b/tools/power/cpupower/lib/cpufreq.h index 95f4fd9e2656..d54d02a7a4f4 100644 --- a/tools/power/cpupower/lib/cpufreq.h +++ b/tools/power/cpupower/lib/cpufreq.h @@ -203,6 +203,9 @@ int cpufreq_modify_policy_governor(unsigned int cpu, char *governor); int cpufreq_set_frequency(unsigned int cpu, unsigned long target_frequency); +int amd_pstate_boost_support(unsigned int cpu); +int amd_pstate_boost_enabled(unsigned int cpu); + #ifdef __cplusplus } #endif diff --git a/tools/power/cpupower/utils/helpers/misc.c b/tools/power/cpupower/utils/helpers/misc.c index 07d80775fb68..aba979320760 100644 --- a/tools/power/cpupower/utils/helpers/misc.c +++ b/tools/power/cpupower/utils/helpers/misc.c @@ -10,6 +10,7 @@ #if defined(__i386__) || defined(__x86_64__) #include "cpupower_intern.h" +#include "cpufreq.h" #define MSR_AMD_HWCR 0xc0010015 @@ -39,6 +40,12 @@ int cpufreq_has_boost_support(unsigned int cpu, int *support, int *active, if (ret) return ret; } + } if ((cpupower_cpu_info.caps & CPUPOWER_CAP_AMD_PSTATE) && + amd_pstate_boost_support(cpu)) { + *support = 1; + + if (amd_pstate_boost_enabled(cpu)) + *active = 1; } else if (cpupower_cpu_info.caps & CPUPOWER_CAP_INTEL_IDA) *support = *active = 1; return 0; -- 2.25.1