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Message-ID: <20230908074653.2799055-8-li.meng@amd.com>
Date: Fri, 8 Sep 2023 15:46:53 +0800
From: Meng Li <li.meng@....com>
To: "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
Huang Rui <ray.huang@....com>
CC: <linux-pm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<x86@...nel.org>, <linux-acpi@...r.kernel.org>,
Shuah Khan <skhan@...uxfoundation.org>,
<linux-kselftest@...r.kernel.org>,
"Nathan Fontenot" <nathan.fontenot@....com>,
Deepak Sharma <deepak.sharma@....com>,
Alex Deucher <alexander.deucher@....com>,
Mario Limonciello <mario.limonciello@....com>,
Shimmer Huang <shimmer.huang@....com>,
"Perry Yuan" <Perry.Yuan@....com>,
Xiaojian Du <Xiaojian.Du@....com>,
Viresh Kumar <viresh.kumar@...aro.org>,
Borislav Petkov <bp@...en8.de>, Meng Li <li.meng@....com>,
Wyes Karny <wyes.karny@....com>
Subject: [PATCH V6 7/7] Documentation: introduce amd-pstate preferrd core mode kernel command line options
amd-pstate driver support enable/disable preferred core.
Default enabled on platforms supporting amd-pstate preferred core.
Disable amd-pstate preferred core with
"amd_prefcore=disable" added to the kernel command line.
Signed-off-by: Meng Li <li.meng@....com>
Reviewed-by: Mario Limonciello <mario.limonciello@....com>
Reviewed-by: Wyes Karny <wyes.karny@....com>
---
Documentation/admin-guide/kernel-parameters.txt | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 0a1731a0f0ef..e35b795aa8aa 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -363,6 +363,11 @@
selects a performance level in this range and appropriate
to the current workload.
+ amd_prefcore=
+ [X86]
+ disable
+ Disable amd-pstate preferred core.
+
amijoy.map= [HW,JOY] Amiga joystick support
Map of devices attached to JOY0DAT and JOY1DAT
Format: <a>,<b>
--
2.34.1
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