From: Meng Li <li.meng@amd.com>
To: "Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
Huang Rui <ray.huang@amd.com>
Cc: <linux-pm@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<x86@kernel.org>, <linux-acpi@vger.kernel.org>,
Shuah Khan <skhan@linuxfoundation.org>,
<linux-kselftest@vger.kernel.org>,
"Nathan Fontenot" <nathan.fontenot@amd.com>,
Deepak Sharma <deepak.sharma@amd.com>,
Alex Deucher <alexander.deucher@amd.com>,
Mario Limonciello <mario.limonciello@amd.com>,
Shimmer Huang <shimmer.huang@amd.com>,
"Perry Yuan" <Perry.Yuan@amd.com>,
Xiaojian Du <Xiaojian.Du@amd.com>,
Viresh Kumar <viresh.kumar@linaro.org>,
Borislav Petkov <bp@alien8.de>, Meng Li <li.meng@amd.com>,
Wyes Karny <wyes.karny@amd.com>
Subject: [PATCH V4 7/7] Documentation: introduce AMD Pstate Preferrd Core mode kernel command line options
Date: Tue, 29 Aug 2023 14:43:40 +0800 [thread overview]
Message-ID: <20230829064340.1136448-8-li.meng@amd.com> (raw)
In-Reply-To: <20230829064340.1136448-1-li.meng@amd.com>
AMD Pstate driver support enable/disable Preferred core.
Default enabled on platforms supporting AMD Preferred Core.
Disable AMD Pstate Preferred Core with
"amd_prefcore=disable" added to the kernel command line.
Signed-off-by: Meng Li <li.meng@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Wyes Karny <wyes.karny@amd.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 23ebe34ff901..4f78067bb8af 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
prev parent reply other threads:[~2023-08-29 6:45 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-29 6:43 [PATCH V4 0/7] AMD Pstate Preferred Core Meng Li
2023-08-29 6:43 ` [PATCH V4 1/7] x86: Drop CPU_SUP_INTEL from SCHED_MC_PRIO for the expansion Meng Li
2023-08-29 6:43 ` [PATCH V4 2/7] acpi: cppc: Add get the highest performance cppc control Meng Li
2023-08-29 6:43 ` [PATCH V4 3/7] cpufreq: amd-pstate: Enable AMD Pstate Preferred Core Supporting Meng Li
2023-08-29 8:01 ` Huang Rui
2023-08-31 1:42 ` Meng, Li (Jassmine)
2023-08-29 14:52 ` kernel test robot
2023-08-29 6:43 ` [PATCH V4 4/7] cpufreq: Add a notification message that the highest perf has changed Meng Li
2023-08-29 16:27 ` kernel test robot
2023-08-29 6:43 ` [PATCH V4 5/7] cpufreq: amd-pstate: Update AMD Pstate Preferred Core ranking dynamically Meng Li
2023-08-29 6:43 ` [PATCH V4 6/7] Documentation: amd-pstate: introduce AMD Pstate Preferred Core Meng Li
2023-08-29 8:07 ` Huang Rui
2023-08-29 6:43 ` Meng Li [this message]
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