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Fri, 3 Nov 2023 04:48:31 -0500 From: Ayush Jain To: , , , , , CC: , , Ayush Jain Subject: [RESEND PATCH] amd-pstate: Only print supported epp values for performance governor Date: Fri, 3 Nov 2023 15:18:15 +0530 Message-ID: <20231103094815.16141-1-ayush.jain3@amd.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] 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: MWH0EPF000989E8:EE_|MN2PR12MB4192:EE_ X-MS-Office365-Filtering-Correlation-Id: 287e987d-7ce2-487c-6a66-08dbdc520cd7 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: OY1SyLeffk7f+iZgd+5IApdwL/3ivciUX+O7esgiDAVJqrzhabTmobdcNjdNACB9elMXr+VjpOxv2oUDJKzRwUzQegtVu+w6GcHDuvN940vBI7jKDNe41VOJUw3YZ3Z2c61wu08odH+eQAjGUFOD7aWMrR5KtIKfum5mYywJ9LZZTL2RfmzNhVGULm3o1gA1bbKh5+9c5pGoaCgqOIcVoxud3t1fNy/MTe3j7NUwOArUfy+ZxypWyn5GdiqpU6XbgFfaSBOSyynVRB72owGdDr56AUKdqOKKcCbCe+tU18gNCGtiv9nWAS6VkdUGfmfeXwYZu3AFbgCApejqzhbLzNWTvkywxgzVy7kcGSaw0/9QynKLXQ5BBjOPK0JJ6PNDXI6FpjhBpIMHBrEdCvMGHUXLHePIMAzGpKefb5KjjnaWfxMWk71u7TSKWJ4iLqEpS8MviK/U3oyPYrXpmcIKhe+zh7KLimeezO83Ho3DsSWU+E3af64W4S3qWbyjHHpLuMzYNQa7O4UsQKguX26aG1HfNgyxl5CAwL8HCBktEKbdAieAKraRqSBviybDIj+I1uyWuHdGihDanDwzh5GSo4hEzwoLXrIQuyvy6O6p/UGh/5STEm0y2Nmmv/R24UtlKJ4XT5V5aJ22Tf1syngCeX23KV5TgXVd5FQ9c8R4/KjIaV1bcB2ZliMPmZmmvKh90Atfz0b5q5GFz1X0S8F25JlQz3ap3x4mbAoaX/dNszzK5bAhxqinXkb7gZfQoPyYqizkagh+Kms+4FFvPof1+UQGqkhpqffDakjkDURoa98= 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)(136003)(39860400002)(396003)(346002)(376002)(230922051799003)(64100799003)(451199024)(82310400011)(1800799009)(186009)(40470700004)(36840700001)(46966006)(40460700003)(86362001)(478600001)(2906002)(426003)(336012)(16526019)(1076003)(26005)(83380400001)(36756003)(47076005)(2616005)(40480700001)(36860700001)(7696005)(6666004)(54906003)(82740400003)(70586007)(6636002)(41300700001)(70206006)(316002)(356005)(81166007)(110136005)(8676002)(8936002)(4326008)(5660300002)(2101003)(36900700001);DIR:OUT;SFP:1101; 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Fri, 03 Nov 2023 02:48:59 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1781535804280369935 X-GMAIL-MSGID: 1781535804280369935 show_energy_performance_available_preferences() to show only supported values which is performance in performance governor policy. -------Before-------- $ cat /sys/devices/system/cpu/cpu1/cpufreq/scaling_driver amd-pstate-epp $ cat /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor performance $ cat /sys/devices/system/cpu/cpu1/cpufreq/energy_performance_preference performance $ cat /sys/devices/system/cpu/cpu1/cpufreq/energy_performance_available_preferences default performance balance_performance balance_power power -------After-------- $ cat /sys/devices/system/cpu/cpu1/cpufreq/scaling_driver amd-pstate-epp $ cat /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor performance $ cat /sys/devices/system/cpu/cpu1/cpufreq/energy_performance_preference performance $ cat /sys/devices/system/cpu/cpu1/cpufreq/energy_performance_available_preferences performance Fixes: ffa5096a7c33 ("cpufreq: amd-pstate: implement Pstate EPP support for the AMD processors") Suggested-by: Wyes Karny Signed-off-by: Ayush Jain Reviewed-by: Wyes Karny Acked-by: Huang Rui --- drivers/cpufreq/amd-pstate.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c index 9a1e194d5cf8..e6c5a57662e4 100644 --- a/drivers/cpufreq/amd-pstate.c +++ b/drivers/cpufreq/amd-pstate.c @@ -850,11 +850,16 @@ static ssize_t show_energy_performance_available_preferences( { int i = 0; int offset = 0; + struct amd_cpudata *cpudata = policy->driver_data; + + if (cpudata->policy == CPUFREQ_POLICY_PERFORMANCE) + return sysfs_emit_at(buf, offset, "%s\n", + energy_perf_strings[EPP_INDEX_PERFORMANCE]); while (energy_perf_strings[i] != NULL) offset += sysfs_emit_at(buf, offset, "%s ", energy_perf_strings[i++]); - sysfs_emit_at(buf, offset, "\n"); + offset += sysfs_emit_at(buf, offset, "\n"); return offset; }