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Wysocki" , Viresh Kumar , Shuah Khan , "Borislav Petkov" , Peter Zijlstra , Ingo Molnar , CC: Deepak Sharma , Alex Deucher , Mario Limonciello , Nathan Fontenot , Jinzhou Su , Xiaojian Du , , , Huang Rui Subject: [PATCH v2 09/21] cpufreq: amd: add boost mode support for amd-pstate Date: Sun, 26 Sep 2021 17:05:53 +0800 Message-ID: <20210926090605.3556134-10-ray.huang@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210926090605.3556134-1-ray.huang@amd.com> References: <20210926090605.3556134-1-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: ce672332-3783-445d-ef4c-08d980ccfd7f X-MS-TrafficTypeDiagnostic: SA0PR12MB4349: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:5516; 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)(26005)(186003)(16526019)(70206006)(54906003)(83380400001)(110136005)(36860700001)(70586007)(36756003)(7696005)(4326008)(508600001)(316002)(1076003)(2616005)(82310400003)(336012)(81166007)(426003)(47076005)(356005)(8936002)(86362001)(5660300002)(2906002)(8676002)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Sep 2021 09:06:56.2720 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ce672332-3783-445d-ef4c-08d980ccfd7f 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: CO1NAM11FT008.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA0PR12MB4349 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 0c9f9c0c8928..847ba00e3351 100644 --- a/drivers/cpufreq/amd-pstate.c +++ b/drivers/cpufreq/amd-pstate.c @@ -75,6 +75,8 @@ struct amd_cpudata { u32 min_freq; u32 nominal_freq; u32 lowest_nonlinear_freq; + + bool boost_supported; }; static inline int pstate_enable(bool enable) @@ -360,6 +362,45 @@ 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_init_freqs_in_cpudata(struct amd_cpudata *cpudata, u32 max_freq, u32 min_freq, u32 nominal_freq, @@ -450,6 +491,8 @@ static int amd_pstate_cpu_init(struct cpufreq_policy *policy) policy->driver_data = cpudata; + amd_pstate_boost_init(cpudata); + return 0; free_cpudata3: @@ -480,6 +523,7 @@ 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