From 0da7a954480cc99978e3570c991e3779e56fc736 Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Mon, 27 May 2024 16:29:38 +0300 Subject: [PATCH] doc: TPMI: Add entry for Performance Limit Reasons MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Describe the new 'plr' (Performance Limit Reasons) directory contents under the main TPMI debugfs folder. Reviewed-by: Andy Shevchenko Reviewed-by: Ilpo Järvinen Signed-off-by: Tero Kristo Link: https://lore.kernel.org/r/20240527133400.483634-7-tero.kristo@linux.intel.com Signed-off-by: Ilpo Järvinen --- Documentation/ABI/testing/debugfs-tpmi | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/ABI/testing/debugfs-tpmi b/Documentation/ABI/testing/debugfs-tpmi index 597f0475fe6eb..c493a1403d2f3 100644 --- a/Documentation/ABI/testing/debugfs-tpmi +++ b/Documentation/ABI/testing/debugfs-tpmi @@ -29,3 +29,12 @@ Example: echo 0,0x20,0xff > mem_write echo 1,64,64 > mem_write Users: Debugging, any user space test suite + +What: /sys/kernel/debug/tpmi-/plr/domain/status +Date: Aug 2024 +KernelVersion: 6.11 +Contact: Tero Kristo +Description: +Shows the currently active Performance Limit Reasons for die level and the +individual CPUs under the die. The contents of this file are sticky, and +clearing all the statuses can be done by writing "0\n" to this file. -- 2.50.1