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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 10/21] cpufreq: amd: add boost mode support for amd-pstate Date: Fri, 29 Oct 2021 21:02:30 +0800 Message-ID: <20211029130241.1984459-11-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: ec9a5427-6bc8-4169-05c1-08d99adc96c3 X-MS-TrafficTypeDiagnostic: DM6PR12MB3290: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:2331; 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)(7416002)(336012)(2616005)(83380400001)(8676002)(26005)(5660300002)(36860700001)(47076005)(186003)(16526019)(86362001)(82310400003)(426003)(54906003)(4326008)(508600001)(1076003)(81166007)(36756003)(2906002)(110136005)(70586007)(356005)(6666004)(316002)(70206006)(8936002)(7696005)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Oct 2021 13:04:06.1532 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ec9a5427-6bc8-4169-05c1-08d99adc96c3 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: BN8NAM11FT048.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB3290 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org If the sbios supports the boost mode of amd-pstate, let's switch to boost enabled by default. Signed-off-by: Huang Rui --- drivers/cpufreq/amd-pstate.c | 44 ++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c index 6037590e82a6..9af27ac1f818 100644 --- a/drivers/cpufreq/amd-pstate.c +++ b/drivers/cpufreq/amd-pstate.c @@ -67,6 +67,8 @@ struct amd_cpudata { u32 min_freq; u32 nominal_freq; u32 lowest_nonlinear_freq; + + bool boost_supported; }; static inline int pstate_enable(bool enable) @@ -349,6 +351,45 @@ static int amd_get_lowest_nonlinear_freq(struct amd_cpudata *cpudata) return lowest_nonlinear_freq * 1000; } +static int amd_pstate_set_boost(struct cpufreq_policy *policy, int state) +{ + struct amd_cpudata *cpudata = policy->driver_data; + int ret; + + if (!cpudata->boost_supported) { + pr_err("Boost mode is not supported by this processor or SBIOS\n"); + return -EINVAL; + } + + if (state) + policy->cpuinfo.max_freq = cpudata->max_freq; + else + policy->cpuinfo.max_freq = cpudata->nominal_freq; + + policy->max = policy->cpuinfo.max_freq; + + ret = freq_qos_update_request(&cpudata->req[1], + policy->cpuinfo.max_freq); + if (ret < 0) + return ret; + + return 0; +} + +static void amd_pstate_boost_init(struct amd_cpudata *cpudata) +{ + u32 highest_perf, nominal_perf; + + highest_perf = READ_ONCE(cpudata->highest_perf); + nominal_perf = READ_ONCE(cpudata->nominal_perf); + + if (highest_perf <= nominal_perf) + return; + + cpudata->boost_supported = true; + amd_pstate_driver.boost_enabled = true; +} + static int amd_pstate_cpu_init(struct cpufreq_policy *policy) { int min_freq, max_freq, nominal_freq, lowest_nonlinear_freq, ret; @@ -419,6 +460,8 @@ static int amd_pstate_cpu_init(struct cpufreq_policy *policy) policy->driver_data = cpudata; + amd_pstate_boost_init(cpudata); + return 0; freq_qos_remove_request(&cpudata->req[1]); @@ -448,6 +491,7 @@ static struct cpufreq_driver amd_pstate_driver = { .target = amd_pstate_target, .init = amd_pstate_cpu_init, .exit = amd_pstate_cpu_exit, + .set_boost = amd_pstate_set_boost, .name = "amd-pstate", }; -- 2.25.1