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Thu, 19 Jan 2023 05:52:59 -0600 From: Wyes Karny To: Rafael J Wysocki , Huang Rui , Jonathan Corbet , Viresh Kumar , , , Ananth Narayan , CC: , , , Bagas Sanjaya , , Len Brown , Robert Moore , Borislav Petkov , Wyes Karny , Mario Limonciello Subject: [PATCH v3 4/6] Documentation: amd_pstate: Move amd_pstate param to alphabetical order Date: Thu, 19 Jan 2023 11:50:15 +0000 Message-ID: <20230119115017.10188-5-wyes.karny@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230119115017.10188-1-wyes.karny@amd.com> References: <20230119115017.10188-1-wyes.karny@amd.com> 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: DM6NAM11FT072:EE_|SA1PR12MB8095:EE_ X-MS-Office365-Filtering-Correlation-Id: bdc8ad86-81f1-4fdf-68be-08dafa13b9cd X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Signed-off-by: Wyes Karny Reviewed-by: Mario Limonciello --- .../admin-guide/kernel-parameters.txt | 46 +++++++++---------- 1 file changed, 23 insertions(+), 23 deletions(-) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 0d8486325c9a..5f6a3a34251e 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -339,6 +339,29 @@ This mode requires kvm-amd.avic=1. (Default when IOMMU HW support is present.) + amd_pstate= [X86] + disable + Do not enable amd_pstate as the default + scaling driver for the supported processors + passive + Use amd_pstate with passive mode as a scaling driver. + In this mode autonomous selection is disabled. + Driver requests a desired performance level and platform + tires to match the same performance level (if it is + satisfied by guaranteed performance level). + active + Use amd_pstate_epp driver instance as the scaling driver, + driver provides a hint to the hardware if software wants + to bias toward performance (0x0) or energy efficiency (0xff) + to the CPPC firmware. then CPPC power algorithm will + calculate the runtime workload and adjust the realtime cores + frequency. + guided + Activate guided autonomous mode. Driver requests minimum and + maximum performance level and the platform autonomously + selects a performance level in this range and appropriate + to the current workload. + amijoy.map= [HW,JOY] Amiga joystick support Map of devices attached to JOY0DAT and JOY1DAT Format: , @@ -7009,26 +7032,3 @@ memory, and other data can't be written using xmon commands. off xmon is disabled. - - amd_pstate= [X86] - disable - Do not enable amd_pstate as the default - scaling driver for the supported processors - passive - Use amd_pstate with passive mode as a scaling driver. - In this mode autonomous selection is disabled. - Driver requests a desired performance level and platform - tires to match the same performance level (if it is - satisfied by guaranteed performance level). - active - Use amd_pstate_epp driver instance as the scaling driver, - driver provides a hint to the hardware if software wants - to bias toward performance (0x0) or energy efficiency (0xff) - to the CPPC firmware. then CPPC power algorithm will - calculate the runtime workload and adjust the realtime cores - frequency. - guided - Activate guided autonomous mode. Driver requests minimum and - maximum performance level and the platform autonomously - selects a performance level in this range and appropriate - to the current workload.