diff mbox series

[V4,7/7] Documentation: introduce AMD Pstate Preferrd Core mode kernel command line options

Message ID 20230829064340.1136448-8-li.meng@amd.com (mailing list archive)
State Handled Elsewhere, archived
Headers show
Series AMD Pstate Preferred Core | expand

Commit Message

Meng, Li (Jassmine) Aug. 29, 2023, 6:43 a.m. UTC 
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(+)
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Patch

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>